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4.25 beta

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This commit is contained in:
Igor Pavlov
2005-08-01 00:00:00 +00:00
committed by Kornel Lesiński
parent 47f4915611
commit af1fe52701
359 changed files with 5969 additions and 9853 deletions
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28
7zip/Crypto/RarAES/RarAES.cpp
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@@ -119,32 +119,38 @@ void CDecoder::Calculate()
rawLength += SALT_SIZE;
}
hash_context c;
hash_initial(&c);
CSHA1 sha;
sha.Init();
// seems rar reverts hash for sha.
const int hashRounds = 0x40000;
int i;
for (i = 0; i < hashRounds; i++)
{
hash_process(&c, rawPassword, rawLength);
sha.Update(rawPassword, rawLength);
Byte pswNum[3];
pswNum[0] = (Byte)i;
pswNum[1] = (Byte)(i >> 8);
pswNum[2] = (Byte)(i >> 16);
hash_process(&c, pswNum, 3);
sha.Update(pswNum, 3);
if (i % (hashRounds / 16) == 0)
{
hash_context tempc = c;
UInt32 digest[5];
hash_final(&tempc, digest);
aesInit[i / (hashRounds / 16)] = (Byte)digest[4];
CSHA1 shaTemp = sha;
Byte digest[20];
shaTemp.Final(digest);
aesInit[i / (hashRounds / 16)] = (Byte)digest[4 * 4 + 3];
}
}
UInt32 digest[5];
hash_final(&c, digest);
/*
// it's test message for sha
const char *message = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
sha.Update((const Byte *)message, strlen(message));
*/
Byte digest[20];
sha.Final(digest);
for (i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
aesKey[i * 4 + j] = (Byte)(digest[i] >> (j * 8));
aesKey[i * 4 + j] = (digest[i * 4 + 3 - j]);
}
_needCalculate = false;
}