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Diffstat (limited to 'third_party/heimdal/lib/hcrypto/dh.h')
| -rw-r--r-- | third_party/heimdal/lib/hcrypto/dh.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/hcrypto/dh.h b/third_party/heimdal/lib/hcrypto/dh.h new file mode 100644 index 0000000..6186805 --- /dev/null +++ b/third_party/heimdal/lib/hcrypto/dh.h @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. 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. + * + * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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. + */ + +/* + * $Id$ + */ + +#ifndef _HEIM_DH_H +#define _HEIM_DH_H 1 + +/* symbol renaming */ +#define DH hc_DH +#define DH_METHOD hc_DH_METHOD +#define DH_null_method hc_DH_null_method +#define DH_tfm_method hc_DH_tfm_method +#define DH_ltm_method hc_DH_ltm_method +#define DH_new hc_DH_new +#define DH_new_method hc_DH_new_method +#define DH_free hc_DH_free +#define DH_up_ref hc_DH_up_ref +#define DH_size hc_DH_size +#define DH_set_default_method hc_DH_set_default_method +#define DH_get_default_method hc_DH_get_default_method +#define DH_set_method hc_DH_set_method +#define DH_get_method hc_DH_get_method +#define DH_set_ex_data hc_DH_set_ex_data +#define DH_get_ex_data hc_DH_get_ex_data +#define DH_generate_parameters_ex hc_DH_generate_parameters_ex +#define DH_check_pubkey hc_DH_check_pubkey +#define DH_generate_key hc_DH_generate_key +#define DH_compute_key hc_DH_compute_key +#define i2d_DHparams hc_i2d_DHparams + +/* + * + */ + +typedef struct DH DH; +typedef struct DH_METHOD DH_METHOD; + +#include <hcrypto/bn.h> +#include <hcrypto/engine.h> + +struct DH_METHOD { + const char *name; + int (*generate_key)(DH *); + int (*compute_key)(unsigned char *,const BIGNUM *,DH *); + int (*bn_mod_exp)(const DH *, BIGNUM *, const BIGNUM *, + const BIGNUM *, const BIGNUM *, BN_CTX *, + BN_MONT_CTX *); + int (*init)(DH *); + int (*finish)(DH *); + int flags; + void *app_data; + int (*generate_params)(DH *, int, int, BN_GENCB *); +}; + +struct DH { + int pad; + int version; + BIGNUM *p; + BIGNUM *g; + long length; + BIGNUM *pub_key; + BIGNUM *priv_key; + int flags; + void *method_mont_p; + BIGNUM *q; + BIGNUM *j; + void *seed; + int seedlen; + BIGNUM *counter; + int references; + struct CRYPTO_EX_DATA { + void *sk; + int dummy; + } ex_data; + const DH_METHOD *meth; + ENGINE *engine; +}; + +/* DH_check_pubkey return codes in `codes' argument. */ +#define DH_CHECK_PUBKEY_TOO_SMALL 1 +#define DH_CHECK_PUBKEY_TOO_LARGE 2 + +/* + * + */ + +const DH_METHOD *DH_null_method(void); +const DH_METHOD *DH_tfm_method(void); +const DH_METHOD *DH_ltm_method(void); + +DH * DH_new(void); +DH * DH_new_method(ENGINE *); +void DH_free(DH *); +int DH_up_ref(DH *); + +int DH_size(const DH *); + + +void DH_set_default_method(const DH_METHOD *); +const DH_METHOD * + DH_get_default_method(void); +int DH_set_method(DH *, const DH_METHOD *); + +int DH_set_ex_data(DH *, int, void *); +void * DH_get_ex_data(DH *, int); + +int DH_generate_parameters_ex(DH *, int, int, BN_GENCB *); +int DH_check_pubkey(const DH *, const BIGNUM *, int *); +int DH_generate_key(DH *); +int DH_compute_key(unsigned char *,const BIGNUM *,DH *); + +int i2d_DHparams(DH *, unsigned char **); + +#endif /* _HEIM_DH_H */ + |