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/* Test HMAC_SHA256 and PBKDF2_HMAC_SHA256 implementations.
*
* Written by Zack Weinberg <zackw at panix.com> in 2018.
* Incorporates standard test vectors from sources documented below.
* To the extent possible under law, the named authors have waived all
* copyright and related or neighboring rights to this work.
*
* See https://creativecommons.org/publicdomain/zero/1.0/ for further
* details.
*/
#include "crypt-port.h"
#include "alg-sha256.h"
#include <stdio.h>
#if INCLUDE_scrypt || INCLUDE_yescrypt || INCLUDE_gost_yescrypt
struct hmac_sha256_test
{
const char *key;
const char *message;
uint8_t digest[32];
};
/* HMAC-SHA256 test vectors from RFC 4231. */
static const struct hmac_sha256_test hmac_sha256_tests[] = {
{ "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b\x0b",
"Hi There",
"\xb0\x34\x4c\x61\xd8\xdb\x38\x53\x5c\xa8\xaf\xce\xaf\x0b\xf1\x2b"
"\x88\x1d\xc2\x00\xc9\x83\x3d\xa7\x26\xe9\x37\x6c\x2e\x32\xcf\xf7"
},
{ "Jefe",
"what do ya want for nothing?",
"\x5b\xdc\xc1\x46\xbf\x60\x75\x4e\x6a\x04\x24\x26\x08\x95\x75\xc7"
"\x5a\x00\x3f\x08\x9d\x27\x39\x83\x9d\xec\x58\xb9\x64\xec\x38\x43"
},
{ "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa",
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd",
"\x77\x3e\xa9\x1e\x36\x80\x0e\x46\x85\x4d\xb8\xeb\xd0\x91\x81\xa7"
"\x29\x59\x09\x8b\x3e\xf8\xc1\x22\xd9\x63\x55\x14\xce\xd5\x65\xfe"
},
{ "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10"
"\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd",
"\x82\x55\x8a\x38\x9a\x44\x3c\x0e\xa4\xcc\x81\x98\x99\xf2\x08\x3a"
"\x85\xf0\xfa\xa3\xe5\x78\xf8\x07\x7a\x2e\x3f\xf4\x67\x29\x66\x5b"
},
{ "\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c"
"\x0c\x0c\x0c\x0c",
"Test With Truncation",
/* N.B. the RFC only supplies the high 16 bytes of this vector; the rest
were filled in with the current implementation's output. */
"\xa3\xb6\x16\x74\x73\x10\x0e\xe0\x6e\x0c\x79\x6c\x29\x55\x55\x2b"
"\xfa\x6f\x7c\x0a\x6a\x8a\xef\x8b\x93\xf8\x60\xaa\xb0\xcd\x20\xc5"
},
{ "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"Test Using Larger Than Block-Size Key - Hash Key First",
"\x60\xe4\x31\x59\x1e\xe0\xb6\x7f\x0d\x8a\x26\xaa\xcb\xf5\xb7\x7f"
"\x8e\x0b\xc6\x21\x37\x28\xc5\x14\x05\x46\x04\x0f\x0e\xe3\x7f\x54"
},
{ "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"This is a test using a larger than block-size key and a larger t"
"han block-size data. The key needs to be hashed before being use"
"d by the HMAC algorithm.",
"\x9b\x09\xff\xa7\x1b\x94\x2f\xcb\x27\x63\x5f\xbc\xd5\xb0\xe9\x44"
"\xbf\xdc\x63\x64\x4f\x07\x13\x93\x8a\x7f\x51\x53\x5c\x3a\x35\xe2"
}
};
struct pbkdf2_hmac_sha256_test
{
const char *passwd;
const char *salt;
uint32_t plen;
uint32_t slen;
uint32_t c;
uint32_t dklen;
const char *dk; /* [dklen] */
};
struct pbkdf2_hmac_sha256_test pbkdf2_hmac_sha256_tests[] = {
/* PBKDF2-HMAC-SHA256 test vectors from RFC 7914. */
{ "passwd", "salt", 6, 4, 1, 64,
"\x55\xac\x04\x6e\x56\xe3\x08\x9f\xec\x16\x91\xc2\x25\x44\xb6\x05"
"\xf9\x41\x85\x21\x6d\xde\x04\x65\xe6\x8b\x9d\x57\xc2\x0d\xac\xbc"
"\x49\xca\x9c\xcc\xf1\x79\xb6\x45\x99\x16\x64\xb3\x9d\x77\xef\x31"
"\x7c\x71\xb8\x45\xb1\xe3\x0b\xd5\x09\x11\x20\x41\xd3\xa1\x97\x83"
},
{ "Password", "NaCl", 8, 4, 80000, 64,
"\x4d\xdc\xd8\xf6\x0b\x98\xbe\x21\x83\x0c\xee\x5e\xf2\x27\x01\xf9"
"\x64\x1a\x44\x18\xd0\x4c\x04\x14\xae\xff\x08\x87\x6b\x34\xab\x56"
"\xa1\xd4\x25\xa1\x22\x58\x33\x54\x9a\xdb\x84\x1b\x51\xc9\xb3\x17"
"\x6a\x27\x2b\xde\xbb\xa1\xd0\x78\x47\x8f\x62\xb3\x97\xf3\x3c\x8d"
},
/* Test vectors from RFC 6070 (which defines PBKDF2-HMAC-SHA1)
recalculated with SHA256 instead of SHA1 and a larger dklen by
'aaz' at <https://stackoverflow.com/a/5136918/388520>. */
{ "password", "salt", 8, 4, 1, 32,
"\x12\x0f\xb6\xcf\xfc\xf8\xb3\x2c\x43\xe7\x22\x52\x56\xc4\xf8\x37"
"\xa8\x65\x48\xc9\x2c\xcc\x35\x48\x08\x05\x98\x7c\xb7\x0b\xe1\x7b"
},
{ "password", "salt", 8, 4, 2, 32,
"\xae\x4d\x0c\x95\xaf\x6b\x46\xd3\x2d\x0a\xdf\xf9\x28\xf0\x6d\xd0"
"\x2a\x30\x3f\x8e\xf3\xc2\x51\xdf\xd6\xe2\xd8\x5a\x95\x47\x4c\x43"
},
{ "password", "salt", 8, 4, 4096, 32,
"\xc5\xe4\x78\xd5\x92\x88\xc8\x41\xaa\x53\x0d\xb6\x84\x5c\x4c\x8d"
"\x96\x28\x93\xa0\x01\xce\x4e\x11\xa4\x96\x38\x73\xaa\x98\x13\x4a"
},
#ifdef SLOW_TESTS
/* With this test vector included, the program takes 40 seconds to run
to completion on a 2017-generation x86. Without, half a second. */
{ "password", "salt", 8, 4, 16777216, 32,
"\xcf\x81\xc6\x6f\xe8\xcf\xc0\x4d\x1f\x31\xec\xb6\x5d\xab\x40\x89"
"\xf7\xf1\x79\xe8\x9b\x3b\x0b\xcb\x17\xad\x10\xe3\xac\x6e\xba\x46"
},
#endif
{ "passwordPASSWORDpassword", "saltSALTsaltSALTsaltSALTsaltSALTsalt",
24, 36, 4096, 40,
"\x34\x8c\x89\xdb\xcb\xd3\x2b\x2f\x32\xd8\x14\xb8\x11\x6e\x84\xcf"
"\x2b\x17\x34\x7e\xbc\x18\x00\x18\x1c\x4e\x2a\x1f\xb8\xdd\x53\xe1"
"\xc6\x35\x51\x8c\x7d\xac\x47\xe9"
},
{ "pass\0word", "sa\0lt", 9, 5, 4096, 16,
"\x89\xb6\x9d\x05\x16\xf8\x29\x89\x3c\x69\x62\x26\x65\x0a\x86\x87"
}
};
static void
report_failure(const char *tag, size_t n, size_t len,
const uint8_t expected[], const uint8_t actual[])
{
size_t i;
printf ("FAIL: %s/%zu:\n exp:", tag, n);
for (i = 0; i < len; i++)
{
if (i % 4 == 0)
putchar (' ');
printf ("%02x", (unsigned int)(unsigned char)expected[i]);
}
printf ("\n got:");
for (i = 0; i < len; i++)
{
if (i % 4 == 0)
putchar (' ');
printf ("%02x", (unsigned int)(unsigned char)actual[i]);
}
putchar ('\n');
putchar ('\n');
}
static int
test_hmac_sha256 (void)
{
uint8_t output[32];
int status = 0;
for (size_t i = 0; i < ARRAY_SIZE (hmac_sha256_tests); i++)
{
const struct hmac_sha256_test *t = &hmac_sha256_tests[i];
HMAC_SHA256_Buf (t->key, strlen (t->key),
t->message, strlen (t->message),
output);
if (memcmp (output, t->digest, 32))
{
report_failure ("HMAC-SHA256", i, 32, t->digest, output);
status = 1;
}
}
return status;
}
static int
test_pbkdf2_hmac_sha256 (void)
{
uint8_t output[64];
int status = 0;
for (size_t i = 0; i < ARRAY_SIZE (pbkdf2_hmac_sha256_tests); i++)
{
const struct pbkdf2_hmac_sha256_test *t = &pbkdf2_hmac_sha256_tests[i];
assert (t->dklen <= sizeof output);
PBKDF2_SHA256 ((const unsigned char *)t->passwd, t->plen,
(const unsigned char *)t->salt, t->slen,
t->c, output, t->dklen);
if (memcmp (output, t->dk, t->dklen))
{
report_failure ("PBKDF2-HMAC-SHA256", i, t->dklen,
(const unsigned char *)t->dk, output);
status = 1;
}
}
return status;
}
int
main (void)
{
int status = 0;
status |= test_hmac_sha256 ();
status |= test_pbkdf2_hmac_sha256 ();
return status;
}
#else /* INCLUDE_scrypt || INCLUDE_yescrypt */
int
main (void)
{
return 77; /* UNSUPPORTED */
}
#endif
|
