1  /*
 2   *  Copyright (C) 2017 - This file is part of libecc project
 3   *
 4   *  Authors:
 5   *      Ryad BENADJILA <ryadbenadjila@gmail.com>
 6   *      Arnaud EBALARD <arnaud.ebalard@ssi.gouv.fr>
 7   *      Jean-Pierre FLORI <jean-pierre.flori@ssi.gouv.fr>
 8   *
 9   *  Contributors:
10   *      Nicolas VIVET <nicolas.vivet@ssi.gouv.fr>
11   *      Karim KHALFALLAH <karim.khalfallah@ssi.gouv.fr>
12   *
13   *  This software is licensed under a dual BSD and GPL v2 license.
14   *  See LICENSE file at the root folder of the project.
15   */
16  #include <libecc/lib_ecc_config.h>
17  #include <libecc/lib_ecc_types.h>
18  #ifdef WITH_SIG_DECDSA
19  
20  #ifndef __DECDSA_H__
21  #define __DECDSA_H__
22  
23  #include <libecc/sig/ecdsa_common.h>
24  
25  ATTRIBUTE_WARN_UNUSED_RET int decdsa_init_pub_key(ec_pub_key *out_pub, const ec_priv_key *in_priv);
26  
27  ATTRIBUTE_WARN_UNUSED_RET int decdsa_siglen(u16 p_bit_len, u16 q_bit_len, u8 hsize, u8 blocksize, u8 *siglen);
28  
29  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_sign_init(struct ec_sign_context *ctx);
30  
31  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_sign_update(struct ec_sign_context *ctx,
32  		       const u8 *chunk, u32 chunklen);
33  
34  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_sign_finalize(struct ec_sign_context *ctx, u8 *sig, u8 siglen);
35  
36  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_verify_init(struct ec_verify_context *ctx,
37  		       const u8 *sig, u8 siglen);
38  
39  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_verify_update(struct ec_verify_context *ctx,
40  			 const u8 *chunk, u32 chunklen);
41  
42  ATTRIBUTE_WARN_UNUSED_RET int _decdsa_verify_finalize(struct ec_verify_context *ctx);
43  
44  ATTRIBUTE_WARN_UNUSED_RET int decdsa_public_key_from_sig(ec_pub_key *out_pub1, ec_pub_key *out_pub2, const ec_params *params,
45                                  const u8 *sig, u8 siglen, const u8 *hash, u8 hsize);
46  
47  #endif /* __DECDSA_H__ */
48  #endif /* WITH_SIG_DECDSA */