FreeBSD/Linux Kernel Cross Reference
sys/dev/random/hash.h

     /*-
      * Copyright (c) 2000-2004 Mark R V Murray
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer
     *    in this position and unchanged.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD: releng/8.4/sys/dev/random/hash.h 128059 2004-04-09 15:47:10Z markm $
     */
    
    #define KEYSIZE         32              /* (in bytes) 32 bytes == 256 bits */
    
    struct yarrowhash {             /* Big! Make static! */
            SHA256_CTX      sha;
    };
    
    struct yarrowkey {              /* Big! Make static! */
            keyInstance key;        /* Key schedule */
            cipherInstance cipher;  /* Rijndael internal */
    };
    
    void yarrow_hash_init(struct yarrowhash *);
    void yarrow_hash_iterate(struct yarrowhash *, void *, size_t);
    void yarrow_hash_finish(struct yarrowhash *, void *);
    void yarrow_encrypt_init(struct yarrowkey *, void *);
    void yarrow_encrypt(struct yarrowkey *context, void *, void *);

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