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40 results

pkcs1-rsa-digest.c

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  • Forked from Nettle / nettle
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    • Nikos Mavrogiannopoulos's avatar
      da81c86a
      abi: explicitly export intended symbols and hide others · da81c86a
      Nikos Mavrogiannopoulos authored and Niels Möller's avatar Niels Möller committed
      This adds all exported symbols in the map files explicitly under
      the following rules:
       - Symbols mentioned in internal headers go in a section which is
         valid only for testing, and linking with these symbols will break
         in library updates.
       - Symbols mentioned in installed headers go in the exported sections
         and are considered part of the ABI.
       - All internal symbols move to internal headers.
       - The _nettle_md5_compress and _nettle_sha1_compress become exported
         without the _nettle prefix, due to existing usage.
      da81c86a
      History
      abi: explicitly export intended symbols and hide others
      Nikos Mavrogiannopoulos authored and Niels Möller's avatar Niels Möller committed
      This adds all exported symbols in the map files explicitly under
      the following rules:
       - Symbols mentioned in internal headers go in a section which is
         valid only for testing, and linking with these symbols will break
         in library updates.
       - Symbols mentioned in installed headers go in the exported sections
         and are considered part of the ABI.
       - All internal symbols move to internal headers.
       - The _nettle_md5_compress and _nettle_sha1_compress become exported
         without the _nettle prefix, due to existing usage.
    bignum.h 3.82 KiB
    /* bignum.h
    
       Bignum operations that are missing from gmp.
    
       Copyright (C) 2001 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/.
    */
     
    #ifndef NETTLE_BIGNUM_H_INCLUDED
    #define NETTLE_BIGNUM_H_INCLUDED
    
    #include "nettle-meta.h"
    
    #include "nettle-types.h"
    
    /* For NETTLE_USE_MINI_GMP */
    #include "version.h"
    
    #if NETTLE_USE_MINI_GMP
    # include "mini-gmp.h"
    
    /* We need a preprocessor constant for GMP_NUMB_BITS, simply using
       sizeof(mp_limb_t) * CHAR_BIT is not good enough. */
    # define GMP_NUMB_BITS @GMP_NUMB_BITS@
    # define GMP_NUMB_MASK (~(mp_limb_t) 0)
    
    /* Functions missing in older gmp versions, and checked for with ifdef */
    # define mpz_limbs_read mpz_limbs_read
    # define mpn_copyd mpn_copyd
    # define mpn_sqr mpn_sqr
    # define mpz_combit mpz_combit
    # define mpz_import mpz_import
    # define mpz_export mpz_export
    #else
    # include <gmp.h>
    #endif
    
    #ifdef __cplusplus
    extern "C" {
    #endif
    
    /* Size needed for signed encoding, including extra sign byte if
     * necessary. */
    size_t
    nettle_mpz_sizeinbase_256_s(const mpz_t x);
    
    /* Size needed for unsigned encoding */
    size_t
    nettle_mpz_sizeinbase_256_u(const mpz_t x);
    
    /* Writes an integer as length octets, using big endian byte order,
     * and two's complement for negative numbers. */
    void
    nettle_mpz_get_str_256(size_t length, uint8_t *s, const mpz_t x);
    
    /* Reads a big endian, two's complement, integer. */
    void
    nettle_mpz_set_str_256_s(mpz_t x,
    			 size_t length, const uint8_t *s);
    
    void
    nettle_mpz_init_set_str_256_s(mpz_t x,
    			      size_t length, const uint8_t *s);
    
    /* Similar, but for unsigned format. These function don't interpret
     * the most significant bit as the sign. */
    void
    nettle_mpz_set_str_256_u(mpz_t x,
    			 size_t length, const uint8_t *s);
    
    void
    nettle_mpz_init_set_str_256_u(mpz_t x,
    			      size_t length, const uint8_t *s);
    
    /* Returns a uniformly distributed random number 0 <= x < 2^n */
    void
    nettle_mpz_random_size(mpz_t x,
    		       void *ctx, nettle_random_func *random,
    		       unsigned bits);
    
    /* Returns a number x, almost uniformly random in the range
     * 0 <= x < n. */
    void
    nettle_mpz_random(mpz_t x, 
    		  void *ctx, nettle_random_func *random,
    		  const mpz_t n);
    
    void
    nettle_random_prime(mpz_t p, unsigned bits, int top_bits_set,
    		    void *ctx, nettle_random_func *random,
    		    void *progress_ctx, nettle_progress_func *progress);
    
    void
    _nettle_generate_pocklington_prime (mpz_t p, mpz_t r,
    				    unsigned bits, int top_bits_set, 
    				    void *ctx, nettle_random_func *random, 
    				    const mpz_t p0,
    				    const mpz_t q,
    				    const mpz_t p0q);
      
    /* sexp parsing */
    struct sexp_iterator;
    
    /* If LIMIT is non-zero, the number must be at most LIMIT bits.
     * Implies sexp_iterator_next. */
    int
    nettle_mpz_set_sexp(mpz_t x, unsigned limit, struct sexp_iterator *i);
    
    
    /* der parsing */
    struct asn1_der_iterator;
    
    int
    nettle_asn1_der_get_bignum(struct asn1_der_iterator *iterator,
    			   mpz_t x, unsigned max_bits);
    
    #ifdef __cplusplus
    }
    #endif
    
    #endif /* NETTLE_BIGNUM_H_INCLUDED */