diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libsrtp/src/crypto/include | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libsrtp/src/crypto/include')
21 files changed, 2538 insertions, 0 deletions
diff --git a/third_party/libsrtp/src/crypto/include/aes.h b/third_party/libsrtp/src/crypto/include/aes.h new file mode 100644 index 0000000000..779c3ac744 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/aes.h @@ -0,0 +1,83 @@ +/* + * aes.h + * + * header file for the AES block cipher + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef AES_H +#define AES_H + +#include "datatypes.h" +#include "err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* aes internals */ + +typedef struct { + v128_t round[15]; + int num_rounds; +} srtp_aes_expanded_key_t; + +srtp_err_status_t srtp_aes_expand_encryption_key( + const uint8_t *key, + int key_len, + srtp_aes_expanded_key_t *expanded_key); + +srtp_err_status_t srtp_aes_expand_decryption_key( + const uint8_t *key, + int key_len, + srtp_aes_expanded_key_t *expanded_key); + +void srtp_aes_encrypt(v128_t *plaintext, + const srtp_aes_expanded_key_t *exp_key); + +void srtp_aes_decrypt(v128_t *plaintext, + const srtp_aes_expanded_key_t *exp_key); + +#ifdef __cplusplus +} +#endif + +#endif /* AES_H */ diff --git a/third_party/libsrtp/src/crypto/include/aes_gcm.h b/third_party/libsrtp/src/crypto/include/aes_gcm.h new file mode 100644 index 0000000000..cd0dceed3e --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/aes_gcm.h @@ -0,0 +1,110 @@ +/* + * aes_gcm.h + * + * Header for AES Galois Counter Mode. + * + * John A. Foley + * Cisco Systems, Inc. + * + */ +/* + * + * Copyright (c) 2013-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef AES_GCM_H +#define AES_GCM_H + +#include "cipher.h" +#include "srtp.h" +#include "datatypes.h" + +#ifdef OPENSSL + +#include <openssl/evp.h> +#include <openssl/aes.h> + +typedef struct { + int key_size; + int tag_len; + EVP_CIPHER_CTX *ctx; + srtp_cipher_direction_t dir; +} srtp_aes_gcm_ctx_t; + +#endif /* OPENSSL */ + +#ifdef MBEDTLS +#define MAX_AD_SIZE 2048 +#include <mbedtls/aes.h> +#include <mbedtls/gcm.h> + +typedef struct { + int key_size; + int tag_len; + int aad_size; + int iv_len; + uint8_t iv[12]; + uint8_t tag[16]; + uint8_t aad[MAX_AD_SIZE]; + mbedtls_gcm_context *ctx; + srtp_cipher_direction_t dir; +} srtp_aes_gcm_ctx_t; + +#endif /* MBEDTLS */ + +#ifdef NSS + +#define NSS_PKCS11_2_0_COMPAT 1 + +#include <nss.h> +#include <pk11pub.h> + +#define MAX_AD_SIZE 2048 + +typedef struct { + int key_size; + int tag_size; + srtp_cipher_direction_t dir; + NSSInitContext *nss; + PK11SymKey *key; + uint8_t iv[12]; + uint8_t aad[MAX_AD_SIZE]; + int aad_size; + CK_GCM_PARAMS params; + uint8_t tag[16]; +} srtp_aes_gcm_ctx_t; + +#endif /* NSS */ + +#endif /* AES_GCM_H */ diff --git a/third_party/libsrtp/src/crypto/include/aes_icm.h b/third_party/libsrtp/src/crypto/include/aes_icm.h new file mode 100644 index 0000000000..8ded156a29 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/aes_icm.h @@ -0,0 +1,62 @@ +/* + * aes_icm.h + * + * Header for AES Integer Counter Mode. + * + * David A. McGrew + * Cisco Systems, Inc. + * + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef AES_ICM_H +#define AES_ICM_H + +#include "aes.h" +#include "cipher.h" + +typedef struct { + v128_t counter; /* holds the counter value */ + v128_t offset; /* initial offset value */ + v128_t keystream_buffer; /* buffers bytes of keystream */ + srtp_aes_expanded_key_t expanded_key; /* the cipher key */ + int bytes_in_buffer; /* number of unused bytes in buffer */ + int key_size; /* AES key size + 14 byte SALT */ +} srtp_aes_icm_ctx_t; + +#endif /* AES_ICM_H */ diff --git a/third_party/libsrtp/src/crypto/include/aes_icm_ext.h b/third_party/libsrtp/src/crypto/include/aes_icm_ext.h new file mode 100644 index 0000000000..5b21c95dde --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/aes_icm_ext.h @@ -0,0 +1,99 @@ +/* + * aes_icm.h + * + * Header for AES Integer Counter Mode. + * + * David A. McGrew + * Cisco Systems, Inc. + * + */ +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef AES_ICM_H +#define AES_ICM_H + +#include "cipher.h" +#include "datatypes.h" + +#ifdef OPENSSL + +#include <openssl/evp.h> +#include <openssl/aes.h> + +typedef struct { + v128_t counter; /* holds the counter value */ + v128_t offset; /* initial offset value */ + int key_size; + EVP_CIPHER_CTX *ctx; +} srtp_aes_icm_ctx_t; + +#endif /* OPENSSL */ + +#ifdef MBEDTLS + +#include <mbedtls/aes.h> +typedef struct { + v128_t counter; /* holds the counter value */ + v128_t offset; /* initial offset value */ + v128_t stream_block; + size_t nc_off; + int key_size; + mbedtls_aes_context *ctx; +} srtp_aes_icm_ctx_t; + +#endif /* MBEDTLS */ + +#ifdef NSS + +#define NSS_PKCS11_2_0_COMPAT 1 + +#include <nss.h> +#include <pk11pub.h> + +typedef struct { + v128_t counter; + v128_t offset; + int key_size; + uint8_t iv[16]; + NSSInitContext *nss; + PK11SymKey *key; + PK11Context *ctx; +} srtp_aes_icm_ctx_t; + +#endif /* NSS */ + +#endif /* AES_ICM_H */ diff --git a/third_party/libsrtp/src/crypto/include/alloc.h b/third_party/libsrtp/src/crypto/include/alloc.h new file mode 100644 index 0000000000..1fc041014d --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/alloc.h @@ -0,0 +1,76 @@ +/* + * alloc.h + * + * interface to memory allocation and deallocation, with optional debugging + * + * David A. McGrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright (c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef CRYPTO_ALLOC_H +#define CRYPTO_ALLOC_H + +#include "datatypes.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * srtp_crypto_alloc + * + * Allocates a block of memory of given size. The memory will be + * initialized to zero's. Free the memory with a call to srtp_crypto_free. + * + * returns pointer to memory on success or else NULL + */ +void *srtp_crypto_alloc(size_t size); + +/* + * srtp_crypto_free + * + * Frees the block of memory ptr previously allocated with + * srtp_crypto_alloc + */ +void srtp_crypto_free(void *ptr); + +#ifdef __cplusplus +} +#endif + +#endif /* CRYPTO_ALLOC_H */ diff --git a/third_party/libsrtp/src/crypto/include/auth.h b/third_party/libsrtp/src/crypto/include/auth.h new file mode 100644 index 0000000000..774ea1687b --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/auth.h @@ -0,0 +1,173 @@ +/* + * auth.h + * + * common interface to authentication functions + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef SRTP_AUTH_H +#define SRTP_AUTH_H + +#include "srtp.h" +#include "crypto_types.h" /* for values of auth_type_id_t */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef const struct srtp_auth_type_t *srtp_auth_type_pointer; +typedef struct srtp_auth_t *srtp_auth_pointer_t; + +typedef srtp_err_status_t (*srtp_auth_alloc_func)(srtp_auth_pointer_t *ap, + int key_len, + int out_len); + +typedef srtp_err_status_t (*srtp_auth_init_func)(void *state, + const uint8_t *key, + int key_len); + +typedef srtp_err_status_t (*srtp_auth_dealloc_func)(srtp_auth_pointer_t ap); + +typedef srtp_err_status_t (*srtp_auth_compute_func)(void *state, + const uint8_t *buffer, + int octets_to_auth, + int tag_len, + uint8_t *tag); + +typedef srtp_err_status_t (*srtp_auth_update_func)(void *state, + const uint8_t *buffer, + int octets_to_auth); + +typedef srtp_err_status_t (*srtp_auth_start_func)(void *state); + +/* some syntactic sugar on these function types */ +#define srtp_auth_type_alloc(at, a, klen, outlen) \ + ((at)->alloc((a), (klen), (outlen))) + +#define srtp_auth_init(a, key) \ + (((a)->type)->init((a)->state, (key), ((a)->key_len))) + +#define srtp_auth_compute(a, buf, len, res) \ + (((a)->type)->compute((a)->state, (buf), (len), (a)->out_len, (res))) + +#define srtp_auth_update(a, buf, len) \ + (((a)->type)->update((a)->state, (buf), (len))) + +#define srtp_auth_start(a) (((a)->type)->start((a)->state)) + +#define srtp_auth_dealloc(c) (((c)->type)->dealloc(c)) + +/* functions to get information about a particular auth_t */ +int srtp_auth_get_key_length(const struct srtp_auth_t *a); + +int srtp_auth_get_tag_length(const struct srtp_auth_t *a); + +int srtp_auth_get_prefix_length(const struct srtp_auth_t *a); + +/* + * srtp_auth_test_case_t is a (list of) key/message/tag values that are + * known to be correct for a particular cipher. this data can be used + * to test an implementation in an on-the-fly self test of the + * correctness of the implementation. (see the srtp_auth_type_self_test() + * function below) + */ +typedef struct srtp_auth_test_case_t { + int key_length_octets; /* octets in key */ + const uint8_t *key; /* key */ + int data_length_octets; /* octets in data */ + const uint8_t *data; /* data */ + int tag_length_octets; /* octets in tag */ + const uint8_t *tag; /* tag */ + const struct srtp_auth_test_case_t + *next_test_case; /* pointer to next testcase */ +} srtp_auth_test_case_t; + +/* srtp_auth_type_t */ +typedef struct srtp_auth_type_t { + srtp_auth_alloc_func alloc; + srtp_auth_dealloc_func dealloc; + srtp_auth_init_func init; + srtp_auth_compute_func compute; + srtp_auth_update_func update; + srtp_auth_start_func start; + const char *description; + const srtp_auth_test_case_t *test_data; + srtp_auth_type_id_t id; +} srtp_auth_type_t; + +typedef struct srtp_auth_t { + const srtp_auth_type_t *type; + void *state; + int out_len; /* length of output tag in octets */ + int key_len; /* length of key in octets */ + int prefix_len; /* length of keystream prefix */ +} srtp_auth_t; + +/* + * srtp_auth_type_self_test() tests an auth_type against test cases + * provided in an array of values of key/message/tag that is known to + * be good + */ +srtp_err_status_t srtp_auth_type_self_test(const srtp_auth_type_t *at); + +/* + * srtp_auth_type_test() tests an auth_type against external test cases + * provided in an array of values of key/message/tag that is known to + * be good + */ +srtp_err_status_t srtp_auth_type_test(const srtp_auth_type_t *at, + const srtp_auth_test_case_t *test_data); + +/* + * srtp_replace_auth_type(ct, id) + * + * replaces srtp's kernel's auth type implementation for the auth_type id + * with a new one passed in externally. The new auth type must pass all the + * existing auth_type's self tests as well as its own. + */ +srtp_err_status_t srtp_replace_auth_type(const srtp_auth_type_t *ct, + srtp_auth_type_id_t id); + +#ifdef __cplusplus +} +#endif + +#endif /* SRTP_AUTH_H */ diff --git a/third_party/libsrtp/src/crypto/include/cipher.h b/third_party/libsrtp/src/crypto/include/cipher.h new file mode 100644 index 0000000000..4f14e3560f --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/cipher.h @@ -0,0 +1,248 @@ +/* + * cipher.h + * + * common interface to ciphers + * + * David A. McGrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright (c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef SRTP_CIPHER_H +#define SRTP_CIPHER_H + +#include "srtp.h" +#include "crypto_types.h" /* for values of cipher_type_id_t */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * srtp_cipher_direction_t defines a particular cipher operation. + * + * A srtp_cipher_direction_t is an enum that describes a particular cipher + * operation, i.e. encryption or decryption. For some ciphers, this + * distinction does not matter, but for others, it is essential. + */ +typedef enum { + srtp_direction_encrypt, /**< encryption (convert plaintext to ciphertext) */ + srtp_direction_decrypt, /**< decryption (convert ciphertext to plaintext) */ + srtp_direction_any /**< encryption or decryption */ +} srtp_cipher_direction_t; + +/* + * the srtp_cipher_pointer_t definition is needed + * as srtp_cipher_t is not yet defined + */ +typedef struct srtp_cipher_t *srtp_cipher_pointer_t; + +/* + * a srtp_cipher_alloc_func_t allocates (but does not initialize) a + * srtp_cipher_t + */ +typedef srtp_err_status_t (*srtp_cipher_alloc_func_t)(srtp_cipher_pointer_t *cp, + int key_len, + int tag_len); + +/* + * a srtp_cipher_init_func_t [re-]initializes a cipher_t with a given key + */ +typedef srtp_err_status_t (*srtp_cipher_init_func_t)(void *state, + const uint8_t *key); + +/* a srtp_cipher_dealloc_func_t de-allocates a cipher_t */ +typedef srtp_err_status_t (*srtp_cipher_dealloc_func_t)( + srtp_cipher_pointer_t cp); + +/* + * a srtp_cipher_set_aad_func_t processes the AAD data for AEAD ciphers + */ +typedef srtp_err_status_t (*srtp_cipher_set_aad_func_t)(void *state, + const uint8_t *aad, + uint32_t aad_len); + +/* a srtp_cipher_encrypt_func_t encrypts data in-place */ +typedef srtp_err_status_t (*srtp_cipher_encrypt_func_t)( + void *state, + uint8_t *buffer, + unsigned int *octets_to_encrypt); + +/* a srtp_cipher_decrypt_func_t decrypts data in-place */ +typedef srtp_err_status_t (*srtp_cipher_decrypt_func_t)( + void *state, + uint8_t *buffer, + unsigned int *octets_to_decrypt); + +/* + * a srtp_cipher_set_iv_func_t function sets the current initialization vector + */ +typedef srtp_err_status_t (*srtp_cipher_set_iv_func_t)( + void *state, + uint8_t *iv, + srtp_cipher_direction_t direction); + +/* + * a cipher_get_tag_func_t function is used to get the authentication + * tag that was calculated by an AEAD cipher. + */ +typedef srtp_err_status_t (*srtp_cipher_get_tag_func_t)(void *state, + uint8_t *tag, + uint32_t *len); + +/* + * srtp_cipher_test_case_t is a (list of) key, salt, plaintext, ciphertext, + * and aad values that are known to be correct for a + * particular cipher. this data can be used to test an implementation + * in an on-the-fly self test of the correctness of the implementation. + * (see the srtp_cipher_type_self_test() function below) + */ +typedef struct srtp_cipher_test_case_t { + int key_length_octets; /* octets in key */ + const uint8_t *key; /* key */ + uint8_t *idx; /* packet index */ + unsigned int plaintext_length_octets; /* octets in plaintext */ + const uint8_t *plaintext; /* plaintext */ + unsigned int ciphertext_length_octets; /* octets in plaintext */ + const uint8_t *ciphertext; /* ciphertext */ + int aad_length_octets; /* octets in AAD */ + const uint8_t *aad; /* AAD */ + int tag_length_octets; /* Length of AEAD tag */ + const struct srtp_cipher_test_case_t + *next_test_case; /* pointer to next testcase */ +} srtp_cipher_test_case_t; + +/* srtp_cipher_type_t defines the 'metadata' for a particular cipher type */ +typedef struct srtp_cipher_type_t { + srtp_cipher_alloc_func_t alloc; + srtp_cipher_dealloc_func_t dealloc; + srtp_cipher_init_func_t init; + srtp_cipher_set_aad_func_t set_aad; + srtp_cipher_encrypt_func_t encrypt; + srtp_cipher_encrypt_func_t decrypt; + srtp_cipher_set_iv_func_t set_iv; + srtp_cipher_get_tag_func_t get_tag; + const char *description; + const srtp_cipher_test_case_t *test_data; + srtp_cipher_type_id_t id; +} srtp_cipher_type_t; + +/* + * srtp_cipher_t defines an instantiation of a particular cipher, with fixed + * key length, key and salt values + */ +typedef struct srtp_cipher_t { + const srtp_cipher_type_t *type; + void *state; + int key_len; + int algorithm; +} srtp_cipher_t; + +/* some bookkeeping functions */ +int srtp_cipher_get_key_length(const srtp_cipher_t *c); + +/* + * srtp_cipher_type_self_test() tests a cipher against test cases provided in + * an array of values of key/srtp_xtd_seq_num_t/plaintext/ciphertext + * that is known to be good + */ +srtp_err_status_t srtp_cipher_type_self_test(const srtp_cipher_type_t *ct); + +/* + * srtp_cipher_type_test() tests a cipher against external test cases provided + * in + * an array of values of key/srtp_xtd_seq_num_t/plaintext/ciphertext + * that is known to be good + */ +srtp_err_status_t srtp_cipher_type_test( + const srtp_cipher_type_t *ct, + const srtp_cipher_test_case_t *test_data); + +/* + * srtp_cipher_bits_per_second(c, l, t) computes (an estimate of) the + * number of bits that a cipher implementation can encrypt in a second + * + * c is a cipher (which MUST be allocated and initialized already), l + * is the length in octets of the test data to be encrypted, and t is + * the number of trials + * + * if an error is encountered, then the value 0 is returned + */ +uint64_t srtp_cipher_bits_per_second(srtp_cipher_t *c, + int octets_in_buffer, + int num_trials); + +srtp_err_status_t srtp_cipher_type_alloc(const srtp_cipher_type_t *ct, + srtp_cipher_t **c, + int key_len, + int tlen); +srtp_err_status_t srtp_cipher_dealloc(srtp_cipher_t *c); +srtp_err_status_t srtp_cipher_init(srtp_cipher_t *c, const uint8_t *key); +srtp_err_status_t srtp_cipher_set_iv(srtp_cipher_t *c, + uint8_t *iv, + int direction); +srtp_err_status_t srtp_cipher_output(srtp_cipher_t *c, + uint8_t *buffer, + uint32_t *num_octets_to_output); +srtp_err_status_t srtp_cipher_encrypt(srtp_cipher_t *c, + uint8_t *buffer, + uint32_t *num_octets_to_output); +srtp_err_status_t srtp_cipher_decrypt(srtp_cipher_t *c, + uint8_t *buffer, + uint32_t *num_octets_to_output); +srtp_err_status_t srtp_cipher_get_tag(srtp_cipher_t *c, + uint8_t *buffer, + uint32_t *tag_len); +srtp_err_status_t srtp_cipher_set_aad(srtp_cipher_t *c, + const uint8_t *aad, + uint32_t aad_len); + +/* + * srtp_replace_cipher_type(ct, id) + * + * replaces srtp's existing cipher implementation for the cipher_type id + * with a new one passed in externally. The new cipher must pass all the + * existing cipher_type's self tests as well as its own. + */ +srtp_err_status_t srtp_replace_cipher_type(const srtp_cipher_type_t *ct, + srtp_cipher_type_id_t id); + +#ifdef __cplusplus +} +#endif + +#endif /* SRTP_CIPHER_H */ diff --git a/third_party/libsrtp/src/crypto/include/cipher_priv.h b/third_party/libsrtp/src/crypto/include/cipher_priv.h new file mode 100644 index 0000000000..46848ea7c6 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/cipher_priv.h @@ -0,0 +1,62 @@ +/* + * + * Copyright(c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef SRTP_CIHPER_PRIV_H +#define SRTP_CIHPER_PRIV_H + +#include "cipher.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * A trivial platform independent random source. + * For use in test only. + */ +void srtp_cipher_rand_for_tests(void *dest, uint32_t len); + +/* + * A trivial platform independent 32 bit random number. + * For use in test only. + */ +uint32_t srtp_cipher_rand_u32_for_tests(void); + +#ifdef __cplusplus +} +#endif + +#endif /* SRTP_CIPHER_PRIV_H */ diff --git a/third_party/libsrtp/src/crypto/include/cipher_types.h b/third_party/libsrtp/src/crypto/include/cipher_types.h new file mode 100644 index 0000000000..28250d1624 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/cipher_types.h @@ -0,0 +1,80 @@ +/* + * + * Copyright(c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef CIHPER_TYPES_H +#define CIHPER_TYPES_H + +#include "cipher.h" +#include "auth.h" + +/* + * cipher types that can be included in the kernel + */ + +extern const srtp_cipher_type_t srtp_null_cipher; +extern const srtp_cipher_type_t srtp_aes_icm_128; +extern const srtp_cipher_type_t srtp_aes_icm_256; +#ifdef GCM +extern const srtp_cipher_type_t srtp_aes_icm_192; +extern const srtp_cipher_type_t srtp_aes_gcm_128; +extern const srtp_cipher_type_t srtp_aes_gcm_256; +#endif + +/* + * auth func types that can be included in the kernel + */ + +extern const srtp_auth_type_t srtp_null_auth; +extern const srtp_auth_type_t srtp_hmac; + +/* + * other generic debug modules that can be included in the kernel + */ + +extern srtp_debug_module_t srtp_mod_auth; +extern srtp_debug_module_t srtp_mod_cipher; +extern srtp_debug_module_t srtp_mod_alloc; + +/* debug modules for cipher types */ +extern srtp_debug_module_t srtp_mod_aes_icm; + +#if defined(OPENSSL) || defined(MBEDTLS) || defined(NSS) +extern srtp_debug_module_t srtp_mod_aes_gcm; +#endif + +/* debug modules for auth types */ +extern srtp_debug_module_t srtp_mod_hmac; +#endif diff --git a/third_party/libsrtp/src/crypto/include/crypto_kernel.h b/third_party/libsrtp/src/crypto/include/crypto_kernel.h new file mode 100644 index 0000000000..1f8dfa7712 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/crypto_kernel.h @@ -0,0 +1,215 @@ +/* + * crypto_kernel.h + * + * header for the cryptographic kernel + * + * David A. McGrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright(c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef CRYPTO_KERNEL +#define CRYPTO_KERNEL + +#include "cipher.h" +#include "auth.h" +#include "err.h" +#include "crypto_types.h" +#include "key.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * crypto_kernel_state_t defines the possible states: + * + * insecure - not yet initialized + * secure - initialized and passed self-tests + */ +typedef enum { + srtp_crypto_kernel_state_insecure, + srtp_crypto_kernel_state_secure +} srtp_crypto_kernel_state_t; + +/* + * linked list of cipher types + */ +typedef struct srtp_kernel_cipher_type { + srtp_cipher_type_id_t id; + const srtp_cipher_type_t *cipher_type; + struct srtp_kernel_cipher_type *next; +} srtp_kernel_cipher_type_t; + +/* + * linked list of auth types + */ +typedef struct srtp_kernel_auth_type { + srtp_auth_type_id_t id; + const srtp_auth_type_t *auth_type; + struct srtp_kernel_auth_type *next; +} srtp_kernel_auth_type_t; + +/* + * linked list of debug modules + */ +typedef struct srtp_kernel_debug_module { + srtp_debug_module_t *mod; + struct srtp_kernel_debug_module *next; +} srtp_kernel_debug_module_t; + +/* + * crypto_kernel_t is the data structure for the crypto kernel + * + * note that there is *exactly one* instance of this data type, + * a global variable defined in crypto_kernel.c + */ +typedef struct { + srtp_crypto_kernel_state_t state; /* current state of kernel */ + srtp_kernel_cipher_type_t *cipher_type_list; /* list of all cipher types */ + srtp_kernel_auth_type_t *auth_type_list; /* list of all auth func types */ + srtp_kernel_debug_module_t + *debug_module_list; /* list of all debug modules */ +} srtp_crypto_kernel_t; + +/* + * srtp_crypto_kernel_t external api + */ + +/* + * The function srtp_crypto_kernel_init() initialized the crypto kernel and + * runs the self-test operations on the random number generators and + * crypto algorithms. Possible return values are: + * + * srtp_err_status_ok initialization successful + * <other> init failure + * + * If any value other than srtp_err_status_ok is returned, the + * crypto_kernel MUST NOT be used. + */ +srtp_err_status_t srtp_crypto_kernel_init(void); + +/* + * The function srtp_crypto_kernel_shutdown() de-initializes the + * crypto_kernel, zeroizes keys and other cryptographic material, and + * deallocates any dynamically allocated memory. Possible return + * values are: + * + * srtp_err_status_ok shutdown successful + * <other> shutdown failure + * + */ +srtp_err_status_t srtp_crypto_kernel_shutdown(void); + +/* + * The function srtp_crypto_kernel_stats() checks the the crypto_kernel, + * running tests on the ciphers, auth funcs, and rng, and prints out a + * status report. Possible return values are: + * + * srtp_err_status_ok all tests were passed + * <other> a test failed + * + */ +srtp_err_status_t srtp_crypto_kernel_status(void); + +/* + * srtp_crypto_kernel_list_debug_modules() outputs a list of debugging modules + * + */ +srtp_err_status_t srtp_crypto_kernel_list_debug_modules(void); + +/* + * srtp_crypto_kernel_load_cipher_type() + * + */ +srtp_err_status_t srtp_crypto_kernel_load_cipher_type( + const srtp_cipher_type_t *ct, + srtp_cipher_type_id_t id); + +srtp_err_status_t srtp_crypto_kernel_load_auth_type(const srtp_auth_type_t *ct, + srtp_auth_type_id_t id); + +srtp_err_status_t srtp_crypto_kernel_load_debug_module( + srtp_debug_module_t *new_dm); + +/* + * srtp_crypto_kernel_alloc_cipher(id, cp, key_len); + * + * allocates a cipher of type id at location *cp, with key length + * key_len octets. Return values are: + * + * srtp_err_status_ok no problems + * srtp_err_status_alloc_fail an allocation failure occured + * srtp_err_status_fail couldn't find cipher with identifier 'id' + */ +srtp_err_status_t srtp_crypto_kernel_alloc_cipher(srtp_cipher_type_id_t id, + srtp_cipher_pointer_t *cp, + int key_len, + int tag_len); + +/* + * srtp_crypto_kernel_alloc_auth(id, ap, key_len, tag_len); + * + * allocates an auth function of type id at location *ap, with key + * length key_len octets and output tag length of tag_len. Return + * values are: + * + * srtp_err_status_ok no problems + * srtp_err_status_alloc_fail an allocation failure occured + * srtp_err_status_fail couldn't find auth with identifier 'id' + */ +srtp_err_status_t srtp_crypto_kernel_alloc_auth(srtp_auth_type_id_t id, + srtp_auth_pointer_t *ap, + int key_len, + int tag_len); + +/* + * srtp_crypto_kernel_set_debug_module(mod_name, v) + * + * sets dynamic debugging to the value v (0 for off, 1 for on) for the + * debug module with the name mod_name + * + * returns srtp_err_status_ok on success, srtp_err_status_fail otherwise + */ +srtp_err_status_t srtp_crypto_kernel_set_debug_module(const char *mod_name, + int v); + +#ifdef __cplusplus +} +#endif + +#endif /* CRYPTO_KERNEL */ diff --git a/third_party/libsrtp/src/crypto/include/crypto_types.h b/third_party/libsrtp/src/crypto/include/crypto_types.h new file mode 100644 index 0000000000..7fd3178b0b --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/crypto_types.h @@ -0,0 +1,116 @@ +/* + * crypto_types.h + * + * constants for cipher types and auth func types + * + * David A. McGrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright(c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef SRTP_CRYPTO_TYPES_H +#define SRTP_CRYPTO_TYPES_H + +/* + * The null cipher performs no encryption. + * + * The SRTP_NULL_CIPHER leaves its inputs unaltered, during both the + * encryption and decryption operations. This cipher can be chosen + * to indicate that no encryption is to be performed. + */ +#define SRTP_NULL_CIPHER 0 + +/* + * AES-128 Integer Counter Mode (AES ICM) + * + * AES-128 ICM is the variant of counter mode that is used by + * Secure RTP. This cipher uses a 16-octet key concatenated with a + * 14-octet offset (or salt) value. + */ +#define SRTP_AES_ICM_128 1 + +/* + * AES-192 Integer Counter Mode (AES ICM) + * + * AES-128 ICM is the variant of counter mode that is used by + * Secure RTP. This cipher uses a 24-octet key concatenated with a + * 14-octet offset (or salt) value. + */ +#define SRTP_AES_ICM_192 4 + +/* + * AES-256 Integer Counter Mode (AES ICM) + * + * AES-128 ICM is the variant of counter mode that is used by + * Secure RTP. This cipher uses a 32-octet key concatenated with a + * 14-octet offset (or salt) value. + */ +#define SRTP_AES_ICM_256 5 + +/* + * AES-128_GCM Galois Counter Mode (AES GCM) + * + * AES-128 GCM is the variant of galois counter mode that is used by + * Secure RTP. This cipher uses a 16-octet key. + */ +#define SRTP_AES_GCM_128 6 + +/* + * AES-256_GCM Galois Counter Mode (AES GCM) + * + * AES-256 GCM is the variant of galois counter mode that is used by + * Secure RTP. This cipher uses a 32-octet key. + */ +#define SRTP_AES_GCM_256 7 + +/* + * The null authentication function performs no authentication. + * + * The NULL_AUTH function does nothing, and can be selected to indicate + * that authentication should not be performed. + */ +#define SRTP_NULL_AUTH 0 + +/* + * HMAC-SHA1 + * + * SRTP_HMAC_SHA1 implements the Hash-based MAC using the NIST Secure + * Hash Algorithm version 1 (SHA1). + */ +#define SRTP_HMAC_SHA1 3 + +#endif /* SRTP_CRYPTO_TYPES_H */ diff --git a/third_party/libsrtp/src/crypto/include/datatypes.h b/third_party/libsrtp/src/crypto/include/datatypes.h new file mode 100644 index 0000000000..5164cf0021 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/datatypes.h @@ -0,0 +1,244 @@ +/* + * datatypes.h + * + * data types for bit vectors and finite fields + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef DATATYPES_H +#define DATATYPES_H + +#include "integers.h" /* definitions of uint32_t, et cetera */ +#include "alloc.h" + +#include <stdarg.h> + +#include <stdio.h> +#include <string.h> +#include <time.h> +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#elif defined HAVE_WINSOCK2_H +#include <winsock2.h> +#else +#error "Platform not recognized" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +typedef union { + uint8_t v8[16]; + uint16_t v16[8]; + uint32_t v32[4]; + uint64_t v64[2]; +} v128_t; + +#define MAX_PRINT_STRING_LEN 1024 + +char *srtp_octet_string_hex_string(const void *str, int length); + +char *v128_bit_string(v128_t *x); + +char *v128_hex_string(v128_t *x); + +void v128_copy_octet_string(v128_t *x, const uint8_t s[16]); + +void v128_left_shift(v128_t *x, int shift_index); + +/* + * the following macros define the data manipulation functions + * + */ + +#define v128_set_to_zero(x) \ + ((x)->v32[0] = 0, (x)->v32[1] = 0, (x)->v32[2] = 0, (x)->v32[3] = 0) + +#define v128_copy(x, y) \ + ((x)->v32[0] = (y)->v32[0], (x)->v32[1] = (y)->v32[1], \ + (x)->v32[2] = (y)->v32[2], (x)->v32[3] = (y)->v32[3]) + +#define v128_xor(z, x, y) \ + ((z)->v32[0] = (x)->v32[0] ^ (y)->v32[0], \ + (z)->v32[1] = (x)->v32[1] ^ (y)->v32[1], \ + (z)->v32[2] = (x)->v32[2] ^ (y)->v32[2], \ + (z)->v32[3] = (x)->v32[3] ^ (y)->v32[3]) + +/* ok for NO_64BIT_MATH if it can compare uint64_t's (even as structures) */ +#ifdef NO_64BIT_MATH +#define v128_xor_eq(z, x) \ + ((z)->v32[0] ^= (x)->v32[0], (z)->v32[1] ^= (x)->v32[1], \ + (z)->v32[2] ^= (x)->v32[2], (z)->v32[3] ^= (x)->v32[3]) +#else +#define v128_xor_eq(z, x) \ + ((z)->v64[0] ^= (x)->v64[0], (z)->v64[1] ^= (x)->v64[1]) +#endif + +/* NOTE! This assumes an odd ordering! */ +/* This will not be compatible directly with math on some processors */ +/* bit 0 is first 32-bit word, low order bit. in little-endian, that's + the first byte of the first 32-bit word. In big-endian, that's + the 3rd byte of the first 32-bit word */ +/* The get/set bit code is used by the replay code ONLY, and it doesn't + really care which bit is which. AES does care which bit is which, but + doesn't use the 128-bit get/set or 128-bit shifts */ + +#define v128_get_bit(x, bit) (((((x)->v32[(bit) >> 5]) >> ((bit)&31)) & 1)) + +#define v128_set_bit(x, bit) \ + ((((x)->v32[(bit) >> 5]) |= ((uint32_t)1 << ((bit)&31)))) + +#define v128_clear_bit(x, bit) \ + ((((x)->v32[(bit) >> 5]) &= ~((uint32_t)1 << ((bit)&31)))) + +/* + * srtp_octet_string_is_eq(a, b, len) returns 1 if the length len strings + * a and b are not equal. It returns 0 otherwise. The running time of the + * comparison depends only on len, making this safe to use for (e.g.) + * verifying authentication tags. + */ + +int srtp_octet_string_is_eq(uint8_t *a, uint8_t *b, int len); + +/* + * A portable way to zero out memory as recommended by + * https://cryptocoding.net/index.php/Coding_rules#Clean_memory_of_secret_data + * This is used to zero memory when OPENSSL_cleanse() is not available. + */ +void srtp_cleanse(void *s, size_t len); + +/* + * Functions as a wrapper that delegates to either srtp_cleanse() or + * OPENSSL_cleanse() if available to zero memory. + */ +void octet_string_set_to_zero(void *s, size_t len); + +#if defined(HAVE_CONFIG_H) + +/* + * Convert big endian integers to CPU byte order. + */ +#ifdef WORDS_BIGENDIAN +/* Nothing to do. */ +#define be32_to_cpu(x) (x) +#define be64_to_cpu(x) (x) +#elif defined(HAVE_BYTESWAP_H) +/* We have (hopefully) optimized versions in byteswap.h */ +#include <byteswap.h> +#define be32_to_cpu(x) bswap_32((x)) +#define be64_to_cpu(x) bswap_64((x)) +#else /* WORDS_BIGENDIAN */ + +#if defined(__GNUC__) && (defined(HAVE_X86) || defined(__x86_64__)) +/* Fall back. */ +static inline uint32_t be32_to_cpu(uint32_t v) +{ + /* optimized for x86. */ + asm("bswap %0" : "=r"(v) : "0"(v)); + return v; +} +#else /* HAVE_X86 */ +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#elif defined HAVE_WINSOCK2_H +#include <winsock2.h> +#endif /* HAVE_NETINET_IN_H */ +#define be32_to_cpu(x) ntohl((x)) +#endif /* HAVE_X86 */ + +static inline uint64_t be64_to_cpu(uint64_t v) +{ +#ifdef NO_64BIT_MATH + /* use the make64 functions to do 64-bit math */ + v = make64(htonl(low32(v)), htonl(high32(v))); +#else /* NO_64BIT_MATH */ + /* use the native 64-bit math */ + v = (uint64_t)((be32_to_cpu((uint32_t)(v >> 32))) | + (((uint64_t)be32_to_cpu((uint32_t)v)) << 32)); +#endif /* NO_64BIT_MATH */ + return v; +} + +#endif /* WORDS_BIGENDIAN */ + +#endif /* HAVE_CONFIG_H */ + +/* + * functions manipulating bitvector_t + * + * A bitvector_t consists of an array of words and an integer + * representing the number of significant bits stored in the array. + * The bits are packed as follows: the least significant bit is that + * of word[0], while the most significant bit is the nth most + * significant bit of word[m], where length = bits_per_word * m + n. + * + */ + +#define bits_per_word 32 +#define bytes_per_word 4 + +typedef struct { + uint32_t length; + uint32_t *word; +} bitvector_t; + +#define bitvector_get_bit(v, bit_index) \ + (((((v)->word[((bit_index) >> 5)]) >> ((bit_index)&31)) & 1)) + +#define bitvector_set_bit(v, bit_index) \ + ((((v)->word[((bit_index) >> 5)] |= ((uint32_t)1 << ((bit_index)&31))))) + +#define bitvector_get_length(v) (((v)->length)) + +int bitvector_alloc(bitvector_t *v, unsigned long length); + +void bitvector_dealloc(bitvector_t *v); + +void bitvector_set_to_zero(bitvector_t *x); + +void bitvector_left_shift(bitvector_t *x, int index); + +#ifdef __cplusplus +} +#endif + +#endif /* DATATYPES_H */ diff --git a/third_party/libsrtp/src/crypto/include/err.h b/third_party/libsrtp/src/crypto/include/err.h new file mode 100644 index 0000000000..326f5e96b7 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/err.h @@ -0,0 +1,139 @@ +/* + * err.h + * + * error status codes + * + * David A. McGrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef ERR_H +#define ERR_H + +#include <stdio.h> +#include <stdarg.h> +#include "srtp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup Error Error Codes + * + * Error status codes are represented by the enumeration srtp_err_status_t. + * + * @{ + */ + +/** + * @} + */ + +typedef enum { + srtp_err_level_error, + srtp_err_level_warning, + srtp_err_level_info, + srtp_err_level_debug +} srtp_err_reporting_level_t; + +/* + * err_reporting_init prepares the error system. If + * ERR_REPORTING_STDOUT is defined, it will log to stdout. + * + */ + +srtp_err_status_t srtp_err_reporting_init(void); + +typedef void(srtp_err_report_handler_func_t)(srtp_err_reporting_level_t level, + const char *msg); + +srtp_err_status_t srtp_install_err_report_handler( + srtp_err_report_handler_func_t func); + +/* + * srtp_err_report reports a 'printf' formatted error + * string, followed by a an arg list. The level argument + * is one of srtp_err_reporting_level_t. + * + * Errors will be reported to stdout, if ERR_REPORTING_STDOUT + * is defined. + * + */ + +void srtp_err_report(srtp_err_reporting_level_t level, const char *format, ...); + +/* + * debug_module_t defines a debug module + */ + +typedef struct { + int on; /* 1 if debugging is on, 0 if it is off */ + const char *name; /* printable name for debug module */ +} srtp_debug_module_t; + +#ifdef ENABLE_DEBUG_LOGGING + +#define debug_print0(mod, format) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name) +#define debug_print(mod, format, arg) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, arg) +#define debug_print2(mod, format, arg1, arg2) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, \ + arg1, arg2) + +#else + +#define debug_print0(mod, format) \ + if (mod.on) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name) +#define debug_print(mod, format, arg) \ + if (mod.on) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, arg) +#define debug_print2(mod, format, arg1, arg2) \ + if (mod.on) \ + srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, \ + arg1, arg2) + +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* ERR_H */ diff --git a/third_party/libsrtp/src/crypto/include/hmac.h b/third_party/libsrtp/src/crypto/include/hmac.h new file mode 100644 index 0000000000..148818122c --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/hmac.h @@ -0,0 +1,58 @@ +/* + * hmac.h + * + * interface to hmac srtp_auth_type_t + * + * David A. McGrew + * Cisco Systems, Inc. + * + */ +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef HMAC_H +#define HMAC_H + +#include "auth.h" +#include "sha1.h" + +typedef struct { + uint8_t opad[64]; + srtp_sha1_ctx_t ctx; + srtp_sha1_ctx_t init_ctx; +} srtp_hmac_ctx_t; + +#endif /* HMAC_H */ diff --git a/third_party/libsrtp/src/crypto/include/integers.h b/third_party/libsrtp/src/crypto/include/integers.h new file mode 100644 index 0000000000..f2cd7c064d --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/integers.h @@ -0,0 +1,146 @@ +/* + * integers.h + * + * defines integer types (or refers to their definitions) + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef INTEGERS_H +#define INTEGERS_H + +/* use standard integer definitions, if they're available */ +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif +#ifdef HAVE_STDINT_H +#include <stdint.h> +#endif +#ifdef HAVE_INTTYPES_H +#include <inttypes.h> +#endif +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_INT_TYPES_H +#include <sys/int_types.h> /* this exists on Sun OS */ +#endif +#ifdef HAVE_MACHINE_TYPES_H +#include <machine/types.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* Can we do 64 bit integers? */ +#if !defined(HAVE_UINT64_T) +#if SIZEOF_UNSIGNED_LONG == 8 +typedef unsigned long uint64_t; +#elif SIZEOF_UNSIGNED_LONG_LONG == 8 +typedef unsigned long long uint64_t; +#else +#define NO_64BIT_MATH 1 +#endif +#endif + +/* Reasonable defaults for 32 bit machines - you may need to + * edit these definitions for your own machine. */ +#ifndef HAVE_UINT8_T +typedef unsigned char uint8_t; +#endif +#ifndef HAVE_UINT16_T +typedef unsigned short int uint16_t; +#endif +#ifndef HAVE_UINT32_T +typedef unsigned int uint32_t; +#endif +#ifndef HAVE_INT32_T +typedef int int32_t; +#endif + +#if defined(NO_64BIT_MATH) && defined(HAVE_CONFIG_H) +typedef double uint64_t; +/* assert that sizeof(double) == 8 */ +extern uint64_t make64(uint32_t high, uint32_t low); +extern uint32_t high32(uint64_t value); +extern uint32_t low32(uint64_t value); +#endif + +/* These macros are to load and store 32-bit values from un-aligned + addresses. This is required for processors that do not allow unaligned + loads. */ +#ifdef ALIGNMENT_32BIT_REQUIRED +/* Note that if it's in a variable, you can memcpy it */ +#ifdef WORDS_BIGENDIAN +#define PUT_32(addr, value) \ + { \ + ((unsigned char *)(addr))[0] = (value >> 24); \ + ((unsigned char *)(addr))[1] = (value >> 16) & 0xff; \ + ((unsigned char *)(addr))[2] = (value >> 8) & 0xff; \ + ((unsigned char *)(addr))[3] = (value)&0xff; \ + } +#define GET_32(addr) \ + ((((unsigned char *)(addr))[0] << 24) | \ + (((unsigned char *)(addr))[1] << 16) | \ + (((unsigned char *)(addr))[2] << 8) | (((unsigned char *)(addr))[3])) +#else +#define PUT_32(addr, value) \ + { \ + ((unsigned char *)(addr))[3] = (value >> 24); \ + ((unsigned char *)(addr))[2] = (value >> 16) & 0xff; \ + ((unsigned char *)(addr))[1] = (value >> 8) & 0xff; \ + ((unsigned char *)(addr))[0] = (value)&0xff; \ + } +#define GET_32(addr) \ + ((((unsigned char *)(addr))[3] << 24) | \ + (((unsigned char *)(addr))[2] << 16) | \ + (((unsigned char *)(addr))[1] << 8) | (((unsigned char *)(addr))[0])) +#endif // WORDS_BIGENDIAN +#else +#define PUT_32(addr, value) *(((uint32_t *) (addr)) = (value) +#define GET_32(addr) (*(((uint32_t *) (addr))) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* INTEGERS_H */ diff --git a/third_party/libsrtp/src/crypto/include/key.h b/third_party/libsrtp/src/crypto/include/key.h new file mode 100644 index 0000000000..4164722c7c --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/key.h @@ -0,0 +1,86 @@ +/* + * key.h + * + * key usage limits enforcement + * + * David A. Mcgrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright (c) 2001-2017 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef KEY_H +#define KEY_H + +#include "rdbx.h" /* for srtp_xtd_seq_num_t */ +#include "err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct srtp_key_limit_ctx_t *srtp_key_limit_t; + +typedef enum { + srtp_key_event_normal, + srtp_key_event_soft_limit, + srtp_key_event_hard_limit +} srtp_key_event_t; + +srtp_err_status_t srtp_key_limit_set(srtp_key_limit_t key, + const srtp_xtd_seq_num_t s); + +srtp_err_status_t srtp_key_limit_clone(srtp_key_limit_t original, + srtp_key_limit_t *new_key); + +srtp_key_event_t srtp_key_limit_update(srtp_key_limit_t key); + +typedef enum { + srtp_key_state_normal, + srtp_key_state_past_soft_limit, + srtp_key_state_expired +} srtp_key_state_t; + +typedef struct srtp_key_limit_ctx_t { + srtp_xtd_seq_num_t num_left; + srtp_key_state_t state; +} srtp_key_limit_ctx_t; + +#ifdef __cplusplus +} +#endif + +#endif /* KEY_H */ diff --git a/third_party/libsrtp/src/crypto/include/null_auth.h b/third_party/libsrtp/src/crypto/include/null_auth.h new file mode 100644 index 0000000000..0e57d67061 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/null_auth.h @@ -0,0 +1,62 @@ +/* + * null-auth.h + * + * David A. McGrew + * Cisco Systems, Inc. + * + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef NULL_AUTH_H +#define NULL_AUTH_H + +#include "auth.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct { + char foo; +} srtp_null_auth_ctx_t; + +#ifdef __cplusplus +} +#endif + +#endif /* NULL_AUTH_H */ diff --git a/third_party/libsrtp/src/crypto/include/null_cipher.h b/third_party/libsrtp/src/crypto/include/null_cipher.h new file mode 100644 index 0000000000..5e8c91c134 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/null_cipher.h @@ -0,0 +1,57 @@ +/* + * null-cipher.h + * + * header file for the null cipher + * + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef NULL_CIPHER_H +#define NULL_CIPHER_H + +#include "datatypes.h" +#include "cipher.h" + +typedef struct { + char foo; /* empty, for now */ +} srtp_null_cipher_ctx_t; + +#endif /* NULL_CIPHER_H */ diff --git a/third_party/libsrtp/src/crypto/include/rdb.h b/third_party/libsrtp/src/crypto/include/rdb.h new file mode 100644 index 0000000000..208dff3ff1 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/rdb.h @@ -0,0 +1,123 @@ +/* + * replay-database.h + * + * interface for a replay database for packet security + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef REPLAY_DB_H +#define REPLAY_DB_H + +#include "integers.h" /* for uint32_t */ +#include "datatypes.h" /* for v128_t */ +#include "err.h" /* for srtp_err_status_t */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * if the ith least significant bit is one, then the packet index + * window_end-i is in the database + */ + +typedef struct { + uint32_t window_start; /* packet index of the first bit in bitmask */ + v128_t bitmask; +} srtp_rdb_t; + +/* + * srtp_rdb_init + * + * initalizes rdb + * + * returns srtp_err_status_ok on success, srtp_err_status_t_fail otherwise + */ +srtp_err_status_t srtp_rdb_init(srtp_rdb_t *rdb); + +/* + * srtp_rdb_check + * + * checks to see if index appears in rdb + * + * returns srtp_err_status_fail if the index already appears in rdb, + * returns srtp_err_status_ok otherwise + */ +srtp_err_status_t srtp_rdb_check(const srtp_rdb_t *rdb, uint32_t rdb_index); + +/* + * srtp_rdb_add_index + * + * adds index to srtp_rdb_t (and does *not* check if index appears in db) + * + * returns srtp_err_status_ok on success, srtp_err_status_fail otherwise + * + */ +srtp_err_status_t srtp_rdb_add_index(srtp_rdb_t *rdb, uint32_t rdb_index); + +/* + * the functions srtp_rdb_increment() and srtp_rdb_get_value() are for use by + * senders, not receivers - DO NOT use these functions on the same + * srtp_rdb_t upon which srtp_rdb_add_index is used! + */ + +/* + * srtp_rdb_increment(db) increments the sequence number in db, if it is + * not too high + * + * return values: + * + * srtp_err_status_ok no problem + * srtp_err_status_key_expired sequence number too high + * + */ +srtp_err_status_t srtp_rdb_increment(srtp_rdb_t *rdb); + +/* + * srtp_rdb_get_value(db) returns the current sequence number of db + */ +uint32_t srtp_rdb_get_value(const srtp_rdb_t *rdb); + +#ifdef __cplusplus +} +#endif + +#endif /* REPLAY_DB_H */ diff --git a/third_party/libsrtp/src/crypto/include/rdbx.h b/third_party/libsrtp/src/crypto/include/rdbx.h new file mode 100644 index 0000000000..2194178ee2 --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/rdbx.h @@ -0,0 +1,209 @@ +/* + * rdbx.h + * + * replay database with extended packet indices, using a rollover counter + * + * David A. McGrew + * Cisco Systems, Inc. + * + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef RDBX_H +#define RDBX_H + +#include "datatypes.h" +#include "err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* #define ROC_TEST */ + +#ifndef ROC_TEST + +typedef uint16_t srtp_sequence_number_t; /* 16 bit sequence number */ +typedef uint32_t srtp_rollover_counter_t; /* 32 bit rollover counter */ + +#else /* use small seq_num and roc datatypes for testing purposes */ + +typedef unsigned char srtp_sequence_number_t; /* 8 bit sequence number */ +typedef uint16_t srtp_rollover_counter_t; /* 16 bit rollover counter */ + +#endif + +#define seq_num_median (1 << (8 * sizeof(srtp_sequence_number_t) - 1)) +#define seq_num_max (1 << (8 * sizeof(srtp_sequence_number_t))) + +/* + * An rtp_xtd_seq_num_t is a 64-bit unsigned integer used as an 'extended' + * sequence number. + */ +typedef uint64_t srtp_xtd_seq_num_t; + +/* + * An srtp_rdbx_t is a replay database with extended range; it uses an + * xtd_seq_num_t and a bitmask of recently received indices. + */ +typedef struct { + srtp_xtd_seq_num_t index; + bitvector_t bitmask; +} srtp_rdbx_t; + +/* + * srtp_rdbx_init(rdbx_ptr, ws) + * + * initializes the rdbx pointed to by its argument with the window size ws, + * setting the rollover counter and sequence number to zero + */ +srtp_err_status_t srtp_rdbx_init(srtp_rdbx_t *rdbx, unsigned long ws); + +/* + * srtp_rdbx_dealloc(rdbx_ptr) + * + * frees memory associated with the rdbx + */ +srtp_err_status_t srtp_rdbx_dealloc(srtp_rdbx_t *rdbx); + +/* + * srtp_rdbx_estimate_index(rdbx, guess, s) + * + * given an rdbx and a sequence number s (from a newly arrived packet), + * sets the contents of *guess to contain the best guess of the packet + * index to which s corresponds, and returns the difference between + * *guess and the locally stored synch info + */ +int32_t srtp_rdbx_estimate_index(const srtp_rdbx_t *rdbx, + srtp_xtd_seq_num_t *guess, + srtp_sequence_number_t s); + +/* + * srtp_rdbx_check(rdbx, delta); + * + * srtp_rdbx_check(&r, delta) checks to see if the xtd_seq_num_t + * which is at rdbx->window_start + delta is in the rdb + * + */ +srtp_err_status_t srtp_rdbx_check(const srtp_rdbx_t *rdbx, int difference); + +/* + * srtp_replay_add_index(rdbx, delta) + * + * adds the srtp_xtd_seq_num_t at rdbx->window_start + delta to replay_db + * (and does *not* check if that xtd_seq_num_t appears in db) + * + * this function should be called *only* after replay_check has + * indicated that the index does not appear in the rdbx, and a mutex + * should protect the rdbx between these calls if necessary. + */ +srtp_err_status_t srtp_rdbx_add_index(srtp_rdbx_t *rdbx, int delta); + +/* + * srtp_rdbx_set_roc(rdbx, roc) initalizes the srtp_rdbx_t at the location rdbx + * to have the rollover counter value roc. If that value is less than + * the current rollover counter value, then the function returns + * srtp_err_status_replay_old; otherwise, srtp_err_status_ok is returned. + * + */ +srtp_err_status_t srtp_rdbx_set_roc(srtp_rdbx_t *rdbx, uint32_t roc); + +/* + * srtp_rdbx_get_packet_index(rdbx) returns the value of the rollover counter + * for + * the srtp_rdbx_t pointed to by rdbx + * + */ +srtp_xtd_seq_num_t srtp_rdbx_get_packet_index(const srtp_rdbx_t *rdbx); + +/* + * srtp_xtd_seq_num_t functions - these are *internal* functions of rdbx, and + * shouldn't be used to manipulate rdbx internal values. use the rdbx + * api instead! + */ + +/* + * srtp_rdbx_get_ws(rdbx_ptr) + * + * gets the window size which was used to initialize the rdbx + */ +unsigned long srtp_rdbx_get_window_size(const srtp_rdbx_t *rdbx); + +/* index_init(&pi) initializes a packet index pi (sets it to zero) */ +void srtp_index_init(srtp_xtd_seq_num_t *pi); + +/* index_advance(&pi, s) advances a xtd_seq_num_t forward by s */ +void srtp_index_advance(srtp_xtd_seq_num_t *pi, srtp_sequence_number_t s); + +/* + * srtp_index_guess(local, guess, s) + * + * given a srtp_xtd_seq_num_t local (which represents the highest + * known-to-be-good index) and a sequence number s (from a newly + * arrived packet), sets the contents of *guess to contain the best + * guess of the packet index to which s corresponds, and returns the + * difference between *guess and *local + */ +int32_t srtp_index_guess(const srtp_xtd_seq_num_t *local, + srtp_xtd_seq_num_t *guess, + srtp_sequence_number_t s); + +/* + * srtp_rdbx_get_roc(rdbx) + * + * Get the current rollover counter + * + */ +uint32_t srtp_rdbx_get_roc(const srtp_rdbx_t *rdbx); + +/* + * srtp_rdbx_set_roc_seq(rdbx, roc, seq) initalizes the srtp_rdbx_t at the + * location rdbx to have the rollover counter value roc and packet sequence + * number seq. If the new rollover counter value is less than the current + * rollover counter value, then the function returns + * srtp_err_status_replay_old, otherwise, srtp_err_status_ok is returned. + */ +srtp_err_status_t srtp_rdbx_set_roc_seq(srtp_rdbx_t *rdbx, + uint32_t roc, + uint16_t seq); + +#ifdef __cplusplus +} +#endif + +#endif /* RDBX_H */ diff --git a/third_party/libsrtp/src/crypto/include/sha1.h b/third_party/libsrtp/src/crypto/include/sha1.h new file mode 100644 index 0000000000..c9bf592dff --- /dev/null +++ b/third_party/libsrtp/src/crypto/include/sha1.h @@ -0,0 +1,90 @@ +/* + * sha1.h + * + * interface to the Secure Hash Algorithm v.1 (SHA-1), specified in + * FIPS 180-1 + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2017, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef SHA1_H +#define SHA1_H + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "err.h" +#include "datatypes.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct { + uint32_t H[5]; /* state vector */ + uint32_t M[16]; /* message buffer */ + int octets_in_buffer; /* octets of message in buffer */ + uint32_t num_bits_in_msg; /* total number of bits in message */ +} srtp_sha1_ctx_t; + +/* + * srtp_sha1_init(&ctx) initializes the SHA1 context ctx + * + * srtp_sha1_update(&ctx, msg, len) hashes the len octets starting at msg + * into the SHA1 context + * + * srtp_sha1_final(&ctx, output) performs the final processing of the SHA1 + * context and writes the result to the 20 octets at output + * + */ +void srtp_sha1_init(srtp_sha1_ctx_t *ctx); + +void srtp_sha1_update(srtp_sha1_ctx_t *ctx, + const uint8_t *M, + int octets_in_msg); + +void srtp_sha1_final(srtp_sha1_ctx_t *ctx, uint32_t output[5]); + +#ifdef __cplusplus +} +#endif + +#endif /* SHA1_H */ |