38 lines
1.9 KiB
C
38 lines
1.9 KiB
C
#ifndef GOST_TOOLS_H
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#define GOST_TOOLS_H
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/**********************************************************************
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* sign.h *
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* Copyright (c) 2006 Cryptocom LTD *
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* This file is distributed under the same license as OpenSSL *
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* *
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* Miscellaneous functions used in GOST engine *
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* OpenSSL 0.9.9 libraries required to compile and use *
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* this code *
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**********************************************************************/
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#include <openssl/evp.h>
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#include <openssl/dsa.h>
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/* from gost_sign.c */
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/* Convert GOST R 34.11 hash sum to bignum according to standard */
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BIGNUM *hashsum2bn(const unsigned char *dgst) ;
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/* Store bignum in byte array of given length, prepending by zeros
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* if nesseccary */
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int store_bignum(BIGNUM *bn, unsigned char *buf,int len);
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/* Read bignum, which can have few MSB all-zeros from buffer*/
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BIGNUM *getbnfrombuf(const unsigned char *buf,size_t len);
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/* Pack GOST R 34.10 signature according to CryptoCom rules */
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int pack_sign_cc(DSA_SIG *s,int order,unsigned char *sig, unsigned int *siglen);
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/* Pack GOST R 34.10 signature according to CryptoPro rules */
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int pack_sign_cp(DSA_SIG *s,int order,unsigned char *sig, unsigned int *siglen);
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/* Unpack GOST R 34.10 signature according to CryptoCom rules */
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DSA_SIG *unpack_cc_signature(const unsigned char *sig,size_t siglen) ;
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/* Unpack GOST R 34.10 signature according to CryptoPro rules */
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DSA_SIG *unpack_cp_signature(const unsigned char *sig,size_t siglen) ;
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/* from ameth.c */
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/* Get private key as BIGNUM from both R 34.10-94 and R 34.10-2001 keys*/
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BIGNUM* gost_get_priv_key(const EVP_PKEY *pkey) ;
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/* Find NID by GOST 94 parameters */
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int gost94_nid_by_params(DSA *p) ;
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#endif
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