FreeBSD/Linux Kernel Cross Reference
sys/opencrypto/xform_sha1.c

     /*      $OpenBSD: xform.c,v 1.16 2001/08/28 12:20:43 ben Exp $  */
     /*-
      * The authors of this code are John Ioannidis (ji@tla.org),
      * Angelos D. Keromytis (kermit@csd.uch.gr),
      * Niels Provos (provos@physnet.uni-hamburg.de) and
      * Damien Miller (djm@mindrot.org).
      *
      * This code was written by John Ioannidis for BSD/OS in Athens, Greece,
      * in November 1995.
     *
     * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
     * by Angelos D. Keromytis.
     *
     * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
     * and Niels Provos.
     *
     * Additional features in 1999 by Angelos D. Keromytis.
     *
     * AES XTS implementation in 2008 by Damien Miller
     *
     * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
     * Angelos D. Keromytis and Niels Provos.
     *
     * Copyright (C) 2001, Angelos D. Keromytis.
     *
     * Copyright (C) 2008, Damien Miller
     * Copyright (c) 2014 The FreeBSD Foundation
     * All rights reserved.
     *
     * Portions of this software were developed by John-Mark Gurney
     * under sponsorship of the FreeBSD Foundation and
     * Rubicon Communications, LLC (Netgate).
     *
     * Permission to use, copy, and modify this software with or without fee
     * is hereby granted, provided that this entire notice is included in
     * all copies of any software which is or includes a copy or
     * modification of this software.
     * You may use this code under the GNU public license if you so wish. Please
     * contribute changes back to the authors under this freer than GPL license
     * so that we may further the use of strong encryption without limitations to
     * all.
     *
     * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
     * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
     * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
     * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
     * PURPOSE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/12.0/sys/opencrypto/xform_sha1.c 336125 2018-07-09 07:28:13Z cem $");
    
    #include <crypto/sha1.h>
    #include <opencrypto/xform_auth.h>
    
    static  void SHA1Init_int(void *);
    static  int SHA1Update_int(void *, const u_int8_t *, u_int16_t);
    static  void SHA1Final_int(u_int8_t *, void *);
    
    /* Plain hash */
    struct auth_hash auth_hash_sha1 = {
            .type = CRYPTO_SHA1,
            .name = "SHA1",
            .hashsize = SHA1_HASH_LEN,
            .ctxsize = sizeof(SHA1_CTX),
            .blocksize = SHA1_BLOCK_LEN,
            .Init = SHA1Init_int,
            .Update = SHA1Update_int,
            .Final = SHA1Final_int,
    };
    
    /* Authentication instances */
    struct auth_hash auth_hash_hmac_sha1 = {
            .type = CRYPTO_SHA1_HMAC,
            .name = "HMAC-SHA1",
            .keysize = SHA1_BLOCK_LEN,
            .hashsize = SHA1_HASH_LEN,
            .ctxsize = sizeof(SHA1_CTX),
            .blocksize = SHA1_BLOCK_LEN,
            .Init = SHA1Init_int,
            .Update = SHA1Update_int,
            .Final = SHA1Final_int,
    };
    
    struct auth_hash auth_hash_key_sha1 = {
            .type = CRYPTO_SHA1_KPDK,
            .name = "Keyed SHA1",
            .keysize = 0,
            .hashsize = SHA1_KPDK_HASH_LEN,
            .ctxsize = sizeof(SHA1_CTX),
            .blocksize = 0,
            .Init = SHA1Init_int,
            .Update = SHA1Update_int,
            .Final = SHA1Final_int,
    };
    
    /*
     * And now for auth.
     */
   static void
   SHA1Init_int(void *ctx)
   {
           SHA1Init(ctx);
   }
   
   static int
   SHA1Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
   {
           SHA1Update(ctx, buf, len);
           return 0;
   }
   
   static void
   SHA1Final_int(u_int8_t *blk, void *ctx)
   {
           SHA1Final(blk, ctx);
   }

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