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aes-internal.h

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    • Niels Möller's avatar
      bc527459
      * aes-internal.h (struct aes_table): sparc_idx[0] should now · bc527459
      Niels Möller authored
      contain index values shifted by the size of a word, and with 2
      added. This saves some additions in the sparc assembler code.
      Updates aes-encrypt-table.c and aes-decrypt-table.c.
      
      * aes-internal.h (struct aes_table): Renamed the shift_idx field
      to sparc_idx, as it will be tweaked to improve the sparc code.
      Also reduced its size to [2][4].
      (IDX_FACTOR): Deleted constant.
      * aes-encrypt-table.c (_aes_encrypt_table): Adapted initializer of
      sparc_idx.
      * aes-decrypt-table.c (_aes_decrypt_table): Likewise.
      * asm.m4: Deleted AES_SIDX2, to match struct aes_table.
      
      Rev: src/nettle/aes-decrypt-table.c:1.3
      Rev: src/nettle/aes-encrypt-table.c:1.3
      Rev: src/nettle/aes-internal.h:1.8
      bc527459
      History
      * aes-internal.h (struct aes_table): sparc_idx[0] should now
      Niels Möller authored
      contain index values shifted by the size of a word, and with 2
      added. This saves some additions in the sparc assembler code.
      Updates aes-encrypt-table.c and aes-decrypt-table.c.
      
      * aes-internal.h (struct aes_table): Renamed the shift_idx field
      to sparc_idx, as it will be tweaked to improve the sparc code.
      Also reduced its size to [2][4].
      (IDX_FACTOR): Deleted constant.
      * aes-encrypt-table.c (_aes_encrypt_table): Adapted initializer of
      sparc_idx.
      * aes-decrypt-table.c (_aes_decrypt_table): Likewise.
      * asm.m4: Deleted AES_SIDX2, to match struct aes_table.
      
      Rev: src/nettle/aes-decrypt-table.c:1.3
      Rev: src/nettle/aes-encrypt-table.c:1.3
      Rev: src/nettle/aes-internal.h:1.8
    sha.h 2.33 KiB
    /* sha.h
     *
     * The sha1 and sha256 hash functions.
     */
    
    /* nettle, low-level cryptographics library
     *
     * Copyright (C) 2001 Niels Mller
     *  
     * 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., 59 Temple Place - Suite 330, Boston,
     * MA 02111-1307, USA.
     */
     
    #ifndef NETTLE_SHA_H_INCLUDED
    #define NETTLE_SHA_H_INCLUDED
    
    #include <inttypes.h>
    
    /* SHA1 */
    
    #define SHA1_DIGEST_SIZE 20
    #define SHA1_DATA_SIZE 64
    
    /* Digest is kept internally as 5 32-bit words. */
    #define _SHA1_DIGEST_LENGTH 5
    
    struct sha1_ctx
    {
      uint32_t digest[_SHA1_DIGEST_LENGTH];   /* Message digest */
      uint32_t count_low, count_high;         /* 64-bit block count */
      uint8_t block[SHA1_DATA_SIZE];          /* SHA1 data buffer */
      unsigned int index;                     /* index into buffer */
    };
    
    void
    sha1_init(struct sha1_ctx *ctx);
    
    void
    sha1_update(struct sha1_ctx *ctx,
    	    unsigned length,
    	    const uint8_t *data);
    
    void
    sha1_digest(struct sha1_ctx *ctx,
    	    unsigned length,
    	    uint8_t *digest);
    
    /* SHA256 */
    
    #define SHA256_DIGEST_SIZE 32
    #define SHA256_DATA_SIZE 64
    
    /* Digest is kept internally as 8 32-bit words. */
    #define _SHA256_DIGEST_LENGTH 8
    
    struct sha256_ctx
    {
      uint32_t state[_SHA256_DIGEST_LENGTH];    /* State variables */