/* ====================================================================
 * Copyright (c) 2005 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
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 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
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 */

#include <string.h>
#include <openssl/err.h>
#include <openssl/fips.h>
#include <openssl/hmac.h>

#ifdef OPENSSL_FIPS
typedef struct {
    const EVP_MD *(*alg) (void);
    const char *key, *iv;
    unsigned char kaval[EVP_MAX_MD_SIZE];
} HMAC_KAT;

static const HMAC_KAT vector[] = {
    {EVP_sha1,
     /*
      * from http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf
      */
     "0123456789:;<=>?@ABC",
     "Sample #2",
     {0x09, 0x22, 0xd3, 0x40, 0x5f, 0xaa, 0x3d, 0x19,
      0x4f, 0x82, 0xa4, 0x58, 0x30, 0x73, 0x7d, 0x5c,
      0xc6, 0xc7, 0x5d, 0x24}
     },
    {EVP_sha224,
     /* just keep extending the above... */
     "0123456789:;<=>?@ABC",
     "Sample #2",
     {0xdd, 0xef, 0x0a, 0x40, 0xcb, 0x7d, 0x50, 0xfb,
      0x6e, 0xe6, 0xce, 0xa1, 0x20, 0xba, 0x26, 0xaa,
      0x08, 0xf3, 0x07, 0x75, 0x87, 0xb8, 0xad, 0x1b,
      0x8c, 0x8d, 0x12, 0xc7}
     },
    {EVP_sha256,
     "0123456789:;<=>?@ABC",
     "Sample #2",
     {0xb8, 0xf2, 0x0d, 0xb5, 0x41, 0xea, 0x43, 0x09,
      0xca, 0x4e, 0xa9, 0x38, 0x0c, 0xd0, 0xe8, 0x34,
      0xf7, 0x1f, 0xbe, 0x91, 0x74, 0xa2, 0x61, 0x38,
      0x0d, 0xc1, 0x7e, 0xae, 0x6a, 0x34, 0x51, 0xd9}
     },
    {EVP_sha384,
     "0123456789:;<=>?@ABC",
     "Sample #2",
     {0x08, 0xbc, 0xb0, 0xda, 0x49, 0x1e, 0x87, 0xad,
      0x9a, 0x1d, 0x6a, 0xce, 0x23, 0xc5, 0x0b, 0xf6,
      0xb7, 0x18, 0x06, 0xa5, 0x77, 0xcd, 0x49, 0x04,
      0x89, 0xf1, 0xe6, 0x23, 0x44, 0x51, 0x51, 0x9f,
      0x85, 0x56, 0x80, 0x79, 0x0c, 0xbd, 0x4d, 0x50,
      0xa4, 0x5f, 0x29, 0xe3, 0x93, 0xf0, 0xe8, 0x7f}
     },
    {EVP_sha512,
     "0123456789:;<=>?@ABC",
     "Sample #2",
     {0x80, 0x9d, 0x44, 0x05, 0x7c, 0x5b, 0x95, 0x41,
      0x05, 0xbd, 0x04, 0x13, 0x16, 0xdb, 0x0f, 0xac,
      0x44, 0xd5, 0xa4, 0xd5, 0xd0, 0x89, 0x2b, 0xd0,
      0x4e, 0x86, 0x64, 0x12, 0xc0, 0x90, 0x77, 0x68,
      0xf1, 0x87, 0xb7, 0x7c, 0x4f, 0xae, 0x2c, 0x2f,
      0x21, 0xa5, 0xb5, 0x65, 0x9a, 0x4f, 0x4b, 0xa7,
      0x47, 0x02, 0xa3, 0xde, 0x9b, 0x51, 0xf1, 0x45,
      0xbd, 0x4f, 0x25, 0x27, 0x42, 0x98, 0x99, 0x05}
     },
};

int FIPS_selftest_hmac()
{
    size_t n;
    unsigned int outlen;
    unsigned char out[EVP_MAX_MD_SIZE];
    const EVP_MD *md;
    const HMAC_KAT *t;

    for (n = 0, t = vector; n < sizeof(vector) / sizeof(vector[0]); n++, t++) {
        md = (*t->alg) ();
        HMAC(md, t->key, strlen(t->key),
             (const unsigned char *)t->iv, strlen(t->iv), out, &outlen);

        if (memcmp(out, t->kaval, outlen)) {
            FIPSerr(FIPS_F_FIPS_SELFTEST_HMAC, FIPS_R_SELFTEST_FAILED);
            return 0;
        }
    }
    return 1;
}
#endif
