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41 results

misc-parser.c

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  • rsa-sha1-sign-tr.c 1.95 KiB
    /* rsa-sha1-sign-tr.c
    
       Signatures using RSA and SHA1.
    
       Copyright (C) 2001, 2003, 2015 Niels Möller
    
       This file is part of GNU Nettle.
    
       GNU Nettle is free software: you can redistribute it and/or
       modify it under the terms of either:
    
         * the GNU Lesser General Public License as published by the Free
           Software Foundation; either version 3 of the License, or (at your
           option) any later version.
    
       or
    
         * the GNU General Public License as published by the Free
           Software Foundation; either version 2 of the License, or (at your
           option) any later version.
    
       or both in parallel, as here.
    
       GNU Nettle is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.
    
       You should have received copies of the GNU General Public License and
       the GNU Lesser General Public License along with this program.  If
       not, see http://www.gnu.org/licenses/.
    */
    
    #if HAVE_CONFIG_H
    # include "config.h"
    #endif
    
    #include <assert.h>
    
    #include "rsa.h"
    #include "rsa-internal.h"
    
    #include "bignum.h"
    #include "pkcs1.h"
    
    int
    rsa_sha1_sign_tr(const struct rsa_public_key *pub,
    		 const struct rsa_private_key *key,
    		 void *random_ctx, nettle_random_func *random,
    		 struct sha1_ctx *hash,
    		 mpz_t s)
    {
      mpz_t m;
      int res;
    
      mpz_init (m);
      res = (pkcs1_rsa_sha1_encode(m, key->size, hash)
    	 && rsa_compute_root_tr (pub, key,
    				 random_ctx, random,
    				 s, m));
      mpz_clear (m);
      return res;
    }
    
    int
    rsa_sha1_sign_digest_tr(const struct rsa_public_key *pub,
    			const struct rsa_private_key *key,
    			void *random_ctx, nettle_random_func *random,
    			const uint8_t *digest,
    			mpz_t s)
    {
      mpz_t m;
      int res;
    
      mpz_init (m);
    
      res = (pkcs1_rsa_sha1_encode_digest(m, key->size, digest)
    	 && rsa_compute_root_tr (pub, key,
    				 random_ctx, random,
    				 s, m));
    
      mpz_clear (m);
      return res;
    }