void Md4Final(Md4* md4, byte* hash)
{
byte* local = (byte*)md4->buffer;
AddLength(md4, md4->buffLen); /* before adding pads */
local[md4->buffLen++] = 0x80; /* add 1 */
/* pad with zeros */
if (md4->buffLen > MD4_PAD_SIZE) {
XMEMSET(&local[md4->buffLen], 0, MD4_BLOCK_SIZE - md4->buffLen);
md4->buffLen += MD4_BLOCK_SIZE - md4->buffLen;
#ifdef BIG_ENDIAN_ORDER
ByteReverseBytes(local, local, MD4_BLOCK_SIZE);
#endif
Transform(md4);
md4->buffLen = 0;
}
XMEMSET(&local[md4->buffLen], 0, MD4_PAD_SIZE - md4->buffLen);
/* put lengths in bits */
md4->hiLen = (md4->loLen >> (8*sizeof(md4->loLen) - 3)) +
(md4->hiLen << 3);
md4->loLen = md4->loLen << 3;
/* store lengths */
#ifdef BIG_ENDIAN_ORDER
ByteReverseBytes(local, local, MD4_BLOCK_SIZE);
#endif
/* ! length ordering dependent on digest endian type ! */
XMEMCPY(&local[MD4_PAD_SIZE], &md4->loLen, sizeof(word32));
XMEMCPY(&local[MD4_PAD_SIZE + sizeof(word32)], &md4->hiLen, sizeof(word32));
Transform(md4);
#ifdef BIG_ENDIAN_ORDER
ByteReverseWords(md4->digest, md4->digest, MD4_DIGEST_SIZE);
#endif
XMEMCPY(hash, md4->digest, MD4_DIGEST_SIZE);
InitMd4(md4); /* reset state */
}
int md4_test()
{
Md4 md4;
byte hash[MD4_DIGEST_SIZE];
testVector a, b, c, d, e, f, g;
testVector test_md4[7];
int times = sizeof(test_md4) / sizeof(testVector), i;
a.input = "";
a.output = "\x31\xd6\xcf\xe0\xd1\x6a\xe9\x31\xb7\x3c\x59\xd7\xe0\xc0\x89"
"\xc0";
a.inLen = strlen(a.input);
a.outLen = strlen(a.output);
b.input = "a";
b.output = "\xbd\xe5\x2c\xb3\x1d\xe3\x3e\x46\x24\x5e\x05\xfb\xdb\xd6\xfb"
"\x24";
b.inLen = strlen(b.input);
b.outLen = strlen(b.output);
c.input = "abc";
c.output = "\xa4\x48\x01\x7a\xaf\x21\xd8\x52\x5f\xc1\x0a\xe8\x7a\xa6\x72"
"\x9d";
c.inLen = strlen(c.input);
c.outLen = strlen(c.output);
d.input = "message digest";
d.output = "\xd9\x13\x0a\x81\x64\x54\x9f\xe8\x18\x87\x48\x06\xe1\xc7\x01"
"\x4b";
d.inLen = strlen(d.input);
d.outLen = strlen(d.output);
e.input = "abcdefghijklmnopqrstuvwxyz";
e.output = "\xd7\x9e\x1c\x30\x8a\xa5\xbb\xcd\xee\xa8\xed\x63\xdf\x41\x2d"
"\xa9";
e.inLen = strlen(e.input);
e.outLen = strlen(e.output);
f.input = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012345"
"6789";
f.output = "\x04\x3f\x85\x82\xf2\x41\xdb\x35\x1c\xe6\x27\xe1\x53\xe7\xf0"
"\xe4";
f.inLen = strlen(f.input);
f.outLen = strlen(f.output);
g.input = "1234567890123456789012345678901234567890123456789012345678"
"9012345678901234567890";
g.output = "\xe3\x3b\x4d\xdc\x9c\x38\xf2\x19\x9c\x3e\x7b\x16\x4f\xcc\x05"
"\x36";
g.inLen = strlen(g.input);
g.outLen = strlen(g.output);
test_md4[0] = a;
test_md4[1] = b;
test_md4[2] = c;
test_md4[3] = d;
test_md4[4] = e;
test_md4[5] = f;
test_md4[6] = g;
InitMd4(&md4);
for (i = 0; i < times; ++i) {
Md4Update(&md4, (byte*)test_md4[i].input, (word32)test_md4[i].inLen);
Md4Final(&md4, hash);
if (memcmp(hash, test_md4[i].output, MD4_DIGEST_SIZE) != 0)
return -205 - i;
}
return 0;
}
