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Diffstat (limited to 'modules/md/md_crypt.h')
| -rw-r--r-- | modules/md/md_crypt.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/modules/md/md_crypt.h b/modules/md/md_crypt.h new file mode 100644 index 0000000..a892e00 --- /dev/null +++ b/modules/md/md_crypt.h @@ -0,0 +1,253 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef mod_md_md_crypt_h +#define mod_md_md_crypt_h + +#include <apr_file_io.h> + +struct apr_array_header_t; +struct md_t; +struct md_http_response_t; +struct md_cert_t; +struct md_pkey_t; +struct md_data_t; +struct md_timeperiod_t; + +/**************************************************************************************************/ +/* random */ + +apr_status_t md_rand_bytes(unsigned char *buf, apr_size_t len, apr_pool_t *p); + +apr_time_t md_asn1_generalized_time_get(void *ASN1_GENERALIZEDTIME); + +/**************************************************************************************************/ +/* digests */ +apr_status_t md_crypt_sha256_digest64(const char **pdigest64, apr_pool_t *p, + const struct md_data_t *data); +apr_status_t md_crypt_sha256_digest_hex(const char **pdigesthex, apr_pool_t *p, + const struct md_data_t *data); + +/**************************************************************************************************/ +/* private keys */ + +typedef struct md_pkey_t md_pkey_t; + +typedef enum { + MD_PKEY_TYPE_DEFAULT, + MD_PKEY_TYPE_RSA, + MD_PKEY_TYPE_EC, +} md_pkey_type_t; + +typedef struct md_pkey_rsa_params_t { + apr_uint32_t bits; +} md_pkey_rsa_params_t; + +typedef struct md_pkey_ec_params_t { + const char *curve; +} md_pkey_ec_params_t; + +typedef struct md_pkey_spec_t { + md_pkey_type_t type; + union { + md_pkey_rsa_params_t rsa; + md_pkey_ec_params_t ec; + } params; +} md_pkey_spec_t; + +typedef struct md_pkeys_spec_t { + apr_pool_t *p; + struct apr_array_header_t *specs; +} md_pkeys_spec_t; + +apr_status_t md_crypt_init(apr_pool_t *pool); + +const char *md_pkey_spec_name(const md_pkey_spec_t *spec); + +md_pkeys_spec_t *md_pkeys_spec_make(apr_pool_t *p); +void md_pkeys_spec_add_default(md_pkeys_spec_t *pks); +int md_pkeys_spec_contains_rsa(md_pkeys_spec_t *pks); +void md_pkeys_spec_add_rsa(md_pkeys_spec_t *pks, unsigned int bits); +int md_pkeys_spec_contains_ec(md_pkeys_spec_t *pks, const char *curve); +void md_pkeys_spec_add_ec(md_pkeys_spec_t *pks, const char *curve); +int md_pkeys_spec_eq(md_pkeys_spec_t *pks1, md_pkeys_spec_t *pks2); +md_pkeys_spec_t *md_pkeys_spec_clone(apr_pool_t *p, const md_pkeys_spec_t *pks); +int md_pkeys_spec_is_empty(const md_pkeys_spec_t *pks); +md_pkey_spec_t *md_pkeys_spec_get(const md_pkeys_spec_t *pks, int index); +int md_pkeys_spec_count(const md_pkeys_spec_t *pks); +void md_pkeys_spec_add(md_pkeys_spec_t *pks, md_pkey_spec_t *spec); + +struct md_json_t *md_pkey_spec_to_json(const md_pkey_spec_t *spec, apr_pool_t *p); +md_pkey_spec_t *md_pkey_spec_from_json(struct md_json_t *json, apr_pool_t *p); +struct md_json_t *md_pkeys_spec_to_json(const md_pkeys_spec_t *pks, apr_pool_t *p); +md_pkeys_spec_t *md_pkeys_spec_from_json(struct md_json_t *json, apr_pool_t *p); + + +apr_status_t md_pkey_gen(md_pkey_t **ppkey, apr_pool_t *p, md_pkey_spec_t *key_props); +void md_pkey_free(md_pkey_t *pkey); + +const char *md_pkey_get_rsa_e64(md_pkey_t *pkey, apr_pool_t *p); +const char *md_pkey_get_rsa_n64(md_pkey_t *pkey, apr_pool_t *p); + +apr_status_t md_pkey_fload(md_pkey_t **ppkey, apr_pool_t *p, + const char *pass_phrase, apr_size_t pass_len, + const char *fname); +apr_status_t md_pkey_fsave(md_pkey_t *pkey, apr_pool_t *p, + const char *pass_phrase, apr_size_t pass_len, + const char *fname, apr_fileperms_t perms); + +apr_status_t md_crypt_sign64(const char **psign64, md_pkey_t *pkey, apr_pool_t *p, + const char *d, size_t dlen); + +void *md_pkey_get_EVP_PKEY(struct md_pkey_t *pkey); + +apr_status_t md_crypt_hmac64(const char **pmac64, const struct md_data_t *hmac_key, + apr_pool_t *p, const char *d, size_t dlen); + +/** + * Read a private key from a http response. + */ +apr_status_t md_pkey_read_http(md_pkey_t **ppkey, apr_pool_t *pool, + const struct md_http_response_t *res); + +/**************************************************************************************************/ +/* X509 certificates */ + +typedef struct md_cert_t md_cert_t; + +typedef enum { + MD_CERT_UNKNOWN, + MD_CERT_VALID, + MD_CERT_EXPIRED +} md_cert_state_t; + +/** + * Create a holder of the certificate that will free its memory when the + * pool is destroyed. + */ +md_cert_t *md_cert_make(apr_pool_t *p, void *x509); + +/** + * Wrap a x509 certificate into our own structure, without taking ownership + * of its memory. The caller remains responsible. + */ +md_cert_t *md_cert_wrap(apr_pool_t *p, void *x509); + +void *md_cert_get_X509(const md_cert_t *cert); + +apr_status_t md_cert_fload(md_cert_t **pcert, apr_pool_t *p, const char *fname); +apr_status_t md_cert_fsave(md_cert_t *cert, apr_pool_t *p, + const char *fname, apr_fileperms_t perms); + +/** + * Read a x509 certificate from a http response. + * Will return APR_ENOENT if content-type is not recognized (currently + * only "application/pkix-cert" is supported). + */ +apr_status_t md_cert_read_http(md_cert_t **pcert, apr_pool_t *pool, + const struct md_http_response_t *res); + +/** + * Read at least one certificate from the given PEM data. + */ +apr_status_t md_cert_read_chain(apr_array_header_t *chain, apr_pool_t *p, + const char *pem, apr_size_t pem_len); + +/** + * Read one or even a chain of certificates from a http response. + * Will return APR_ENOENT if content-type is not recognized (currently + * supports only "application/pem-certificate-chain" and "application/pkix-cert"). + * @param chain must be non-NULL, retrieved certificates will be added. + */ +apr_status_t md_cert_chain_read_http(struct apr_array_header_t *chain, + apr_pool_t *pool, const struct md_http_response_t *res); + +md_cert_state_t md_cert_state_get(const md_cert_t *cert); +int md_cert_is_valid_now(const md_cert_t *cert); +int md_cert_has_expired(const md_cert_t *cert); +int md_cert_covers_domain(md_cert_t *cert, const char *domain_name); +int md_cert_covers_md(md_cert_t *cert, const struct md_t *md); +int md_cert_must_staple(const md_cert_t *cert); +apr_time_t md_cert_get_not_after(const md_cert_t *cert); +apr_time_t md_cert_get_not_before(const md_cert_t *cert); +struct md_timeperiod_t md_cert_get_valid(const md_cert_t *cert); + +/** + * Return != 0 iff the hash values of the certificates are equal. + */ +int md_certs_are_equal(const md_cert_t *a, const md_cert_t *b); + +apr_status_t md_cert_get_issuers_uri(const char **puri, const md_cert_t *cert, apr_pool_t *p); +apr_status_t md_cert_get_alt_names(apr_array_header_t **pnames, const md_cert_t *cert, apr_pool_t *p); + +apr_status_t md_cert_to_base64url(const char **ps64, const md_cert_t *cert, apr_pool_t *p); +apr_status_t md_cert_from_base64url(md_cert_t **pcert, const char *s64, apr_pool_t *p); + +apr_status_t md_cert_to_sha256_digest(struct md_data_t **pdigest, const md_cert_t *cert, apr_pool_t *p); +apr_status_t md_cert_to_sha256_fingerprint(const char **pfinger, const md_cert_t *cert, apr_pool_t *p); + +const char *md_cert_get_serial_number(const md_cert_t *cert, apr_pool_t *p); + +apr_status_t md_chain_fload(struct apr_array_header_t **pcerts, + apr_pool_t *p, const char *fname); +apr_status_t md_chain_fsave(struct apr_array_header_t *certs, + apr_pool_t *p, const char *fname, apr_fileperms_t perms); +apr_status_t md_chain_fappend(struct apr_array_header_t *certs, + apr_pool_t *p, const char *fname); + +apr_status_t md_cert_req_create(const char **pcsr_der_64, const char *name, + apr_array_header_t *domains, int must_staple, + md_pkey_t *pkey, apr_pool_t *p); + +/** + * Create a self-signed cerftificate with the given cn, key and list + * of alternate domain names. + */ +apr_status_t md_cert_self_sign(md_cert_t **pcert, const char *cn, + struct apr_array_header_t *domains, md_pkey_t *pkey, + apr_interval_time_t valid_for, apr_pool_t *p); + +/** + * Create a certificate for answering "tls-alpn-01" ACME challenges + * (see <https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-01>). + */ +apr_status_t md_cert_make_tls_alpn_01(md_cert_t **pcert, const char *domain, + const char *acme_id, md_pkey_t *pkey, + apr_interval_time_t valid_for, apr_pool_t *p); + +apr_status_t md_cert_get_ct_scts(apr_array_header_t *scts, apr_pool_t *p, const md_cert_t *cert); + +apr_status_t md_cert_get_ocsp_responder_url(const char **purl, apr_pool_t *p, const md_cert_t *cert); + +apr_status_t md_check_cert_and_pkey(struct apr_array_header_t *certs, md_pkey_t *pkey); + + +/**************************************************************************************************/ +/* X509 certificate transparency */ + +const char *md_nid_get_sname(int nid); +const char *md_nid_get_lname(int nid); + +typedef struct md_sct md_sct; +struct md_sct { + int version; + apr_time_t timestamp; + struct md_data_t *logid; + int signature_type_nid; + struct md_data_t *signature; +}; + +#endif /* md_crypt_h */ |