Skip to content
Snippets Groups Projects
Select Git revision
  • 07db57cd636e08cf365b5346de7f56cf6c29c9d1
  • master default protected
  • streebog
  • gost28147
  • master-updates
  • ed448
  • shake256
  • curve448
  • ecc-sqrt
  • gosthash94cp
  • cmac64
  • block16-refactor
  • siv-mode
  • cmac-layout
  • delete-des-compat
  • delete-rsa_blind
  • aes-struct-layout
  • release-3.4-fixes
  • struct-layout
  • attribute-deprecated
  • rename-data-symbols
  • nettle_3.5.1_release_20190627
  • nettle_3.5_release_20190626
  • nettle_3.5rc1
  • nettle_3.4.1_release_20181204
  • nettle_3.4.1rc1
  • nettle_3.4_release_20171119
  • nettle_3.4rc2
  • nettle_3.4rc1
  • nettle_3.3_release_20161001
  • nettle_3.2_release_20160128
  • nettle_3.1.1_release_20150424
  • nettle_3.1_release_20150407
  • nettle_3.1rc3
  • nettle_3.1rc2
  • nettle_3.1rc1
  • nettle_3.0_release_20140607
  • nettle_2.7.1_release_20130528
  • nettle_2.7_release_20130424
  • nettle_2.6_release_20130116
  • nettle_2.5_release_20120707
41 results

nettle-internal.h

Blame
  • Forked from Nettle / nettle
    Source project has a limited visibility.
    nettle-internal.h 4.79 KiB
    /* nettle-internal.h
     *
     * Things that are used only by the testsuite and benchmark, and
     * subject to change.
     */
    
    /* nettle, low-level cryptographics library
     *
     * Copyright (C) 2002 Niels Möller
     *  
     * The nettle library is free software; you can redistribute it and/or modify
     * it under the terms of the GNU Lesser General Public License as published by
     * the Free Software Foundation; either version 2.1 of the License, or (at your
     * option) any later version.
     * 
     * The nettle library 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 Lesser General Public
     * License for more details.
     * 
     * You should have received a copy of the GNU Lesser General Public License
     * along with the nettle library; see the file COPYING.LIB.  If not, write to
     * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
     * MA 02111-1301, USA.
     */
    
    #ifndef NETTLE_INTERNAL_H_INCLUDED
    #define NETTLE_INTERNAL_H_INCLUDED
    
    #include "nettle-meta.h"
    
    /* Temporary allocation, for systems that don't support alloca. Note
     * that the allocation requests should always be reasonably small, so
     * that they can fit on the stack. For non-alloca systems, we use a
     * fix maximum size, and abort if we ever need anything larger. */
    
    #if HAVE_ALLOCA
    # define TMP_DECL(name, type, max) type *name
    # define TMP_ALLOC(name, size) (name = alloca(sizeof (*name) * (size)))
    #else /* !HAVE_ALLOCA */
    # define TMP_DECL(name, type, max) type name[max]
    # define TMP_ALLOC(name, size) \
      do { if ((size) > (sizeof(name) / sizeof(name[0]))) abort(); } while (0)
    #endif 
    
    /* Arbitrary limits which apply to systems that don't have alloca */
    #define NETTLE_MAX_BIGNUM_BITS 10000
    #define NETTLE_MAX_BIGNUM_SIZE ((NETTLE_MAX_BIGNUM_BITS + 7)/8)
    #define NETTLE_MAX_HASH_BLOCK_SIZE 128
    #define NETTLE_MAX_HASH_DIGEST_SIZE 64
    #define NETTLE_MAX_SEXP_ASSOC 17
    #define NETTLE_MAX_CIPHER_BLOCK_SIZE 32
    
    /* Doesn't quite fit with the other algorithms, because of the weak
     * keys. Weak keys are not reported, the functions will simply crash
     * if you try to use a weak key. */
    
    extern const struct nettle_cipher nettle_des;
    extern const struct nettle_cipher nettle_des3;
    
    extern const struct nettle_cipher nettle_blowfish128;
    
    /* For benchmarking only, sets no iv and lies about the block size. */
    extern const struct nettle_cipher nettle_salsa20;
    extern const struct nettle_cipher nettle_salsa20r12;
    
    /* Glue to openssl, for comparative benchmarking. Code in
     * examples/nettle-openssl.c. */
    extern const struct nettle_cipher nettle_openssl_aes128;
    extern const struct nettle_cipher nettle_openssl_aes192;
    extern const struct nettle_cipher nettle_openssl_aes256;
    extern const struct nettle_cipher nettle_openssl_arcfour128;
    extern const struct nettle_cipher nettle_openssl_blowfish128;
    extern const struct nettle_cipher nettle_openssl_des;
    extern const struct nettle_cipher nettle_openssl_cast128;
    
    extern const struct nettle_hash nettle_openssl_md5;
    extern const struct nettle_hash nettle_openssl_sha1;
    
    /* Tentative interface for "authenticated encryption with associated
       data" algorithms. Should be moved to nettle-meta.h when stable. */
    struct nettle_aead
    {
      const char *name;
      
      unsigned context_size;
      /* Block size of the input, and the size of the output digest */
      unsigned block_size;
    
      /* Suggested key size; other sizes are sometimes possible. */
      unsigned key_size;
    
      nettle_set_key_func *set_key;
      nettle_set_key_func *set_iv;
      nettle_hash_update_func *update;
      nettle_crypt_func *encrypt;
      nettle_crypt_func *decrypt;
      nettle_hash_digest_func *digest;
    };
    
    #define _NETTLE_AEAD(type, TYPE, name, key_size) {	\
      #type "-" #name #key_size,				\
      sizeof(struct type##_##name##_ctx),			\
      TYPE##_BLOCK_SIZE,					\
      key_size / 8,						\
      (nettle_set_key_func *) type##_##name##_set_key,	\
      (nettle_set_key_func *) type##_##name##_set_iv,	\
      (nettle_hash_update_func *) type##_##name##_update,	\
      (nettle_crypt_func *) type##_##name##_encrypt,	\
      (nettle_crypt_func *) type##_##name##_decrypt,	\
      (nettle_hash_digest_func *) type##_##name##_digest,	\
    }
    
    extern const struct nettle_aead nettle_gcm_aes128;
    extern const struct nettle_aead nettle_gcm_aes192;
    extern const struct nettle_aead nettle_gcm_aes256;
    
    extern const struct nettle_aead nettle_gcm_camellia128;
    extern const struct nettle_aead nettle_gcm_camellia192;
    extern const struct nettle_aead nettle_gcm_camellia256;
    
    extern const struct nettle_aead nettle_gcm_serpent128;
    extern const struct nettle_aead nettle_gcm_serpent192;
    extern const struct nettle_aead nettle_gcm_serpent256;
    
    extern const struct nettle_aead nettle_gcm_twofish128;
    extern const struct nettle_aead nettle_gcm_twofish192;
    extern const struct nettle_aead nettle_gcm_twofish256;
    
    #endif /* NETTLE_INTERNAL_H_INCLUDED */