mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-13 05:35:00 +00:00
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/* $OpenBSD: hash.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */
|
|
|
|
/* Copied from nacl-20110221/crypto_hash/sha512/ref/hash.c */
|
|
|
|
/*
|
|
20080913
|
|
D. J. Bernstein
|
|
Public domain.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#include "crypto_api.h"
|
|
|
|
#define blocks crypto_hashblocks_sha512
|
|
|
|
static const unsigned char iv[64] = {
|
|
0x6a,0x09,0xe6,0x67,0xf3,0xbc,0xc9,0x08,
|
|
0xbb,0x67,0xae,0x85,0x84,0xca,0xa7,0x3b,
|
|
0x3c,0x6e,0xf3,0x72,0xfe,0x94,0xf8,0x2b,
|
|
0xa5,0x4f,0xf5,0x3a,0x5f,0x1d,0x36,0xf1,
|
|
0x51,0x0e,0x52,0x7f,0xad,0xe6,0x82,0xd1,
|
|
0x9b,0x05,0x68,0x8c,0x2b,0x3e,0x6c,0x1f,
|
|
0x1f,0x83,0xd9,0xab,0xfb,0x41,0xbd,0x6b,
|
|
0x5b,0xe0,0xcd,0x19,0x13,0x7e,0x21,0x79
|
|
} ;
|
|
|
|
typedef unsigned long long uint64;
|
|
|
|
int crypto_hash_sha512(unsigned char *out,const unsigned char *in,unsigned long long inlen)
|
|
{
|
|
unsigned char h[64];
|
|
unsigned char padded[256];
|
|
unsigned int i;
|
|
unsigned long long bytes = inlen;
|
|
|
|
for (i = 0;i < 64;++i) h[i] = iv[i];
|
|
|
|
blocks(h,in,inlen);
|
|
in += inlen;
|
|
inlen &= 127;
|
|
in -= inlen;
|
|
|
|
for (i = 0;i < inlen;++i) padded[i] = in[i];
|
|
padded[inlen] = 0x80;
|
|
|
|
if (inlen < 112) {
|
|
for (i = inlen + 1;i < 119;++i) padded[i] = 0;
|
|
padded[119] = bytes >> 61;
|
|
padded[120] = bytes >> 53;
|
|
padded[121] = bytes >> 45;
|
|
padded[122] = bytes >> 37;
|
|
padded[123] = bytes >> 29;
|
|
padded[124] = bytes >> 21;
|
|
padded[125] = bytes >> 13;
|
|
padded[126] = bytes >> 5;
|
|
padded[127] = bytes << 3;
|
|
blocks(h,padded,128);
|
|
} else {
|
|
for (i = inlen + 1;i < 247;++i) padded[i] = 0;
|
|
padded[247] = bytes >> 61;
|
|
padded[248] = bytes >> 53;
|
|
padded[249] = bytes >> 45;
|
|
padded[250] = bytes >> 37;
|
|
padded[251] = bytes >> 29;
|
|
padded[252] = bytes >> 21;
|
|
padded[253] = bytes >> 13;
|
|
padded[254] = bytes >> 5;
|
|
padded[255] = bytes << 3;
|
|
blocks(h,padded,256);
|
|
}
|
|
|
|
for (i = 0;i < 64;++i) out[i] = h[i];
|
|
|
|
return 0;
|
|
}
|