/* SHA512 module */ | |
/* This module provides an interface to NIST's SHA-512 and SHA-384 Algorithms */ | |
/* See below for information about the original code this module was | |
based upon. Additional work performed by: | |
Andrew Kuchling (amk@amk.ca) | |
Greg Stein (gstein@lyra.org) | |
Trevor Perrin (trevp@trevp.net) | |
Copyright (C) 2005 Gregory P. Smith (greg@krypto.org) | |
Licensed to PSF under a Contributor Agreement. | |
*/ | |
/* SHA objects */ | |
#include "Python.h" | |
#include "structmember.h" | |
#ifdef PY_LONG_LONG /* If no PY_LONG_LONG, don't compile anything! */ | |
/* Endianness testing and definitions */ | |
#define TestEndianness(variable) {int i=1; variable=PCT_BIG_ENDIAN;\ | |
if (*((char*)&i)==1) variable=PCT_LITTLE_ENDIAN;} | |
#define PCT_LITTLE_ENDIAN 1 | |
#define PCT_BIG_ENDIAN 0 | |
/* Some useful types */ | |
typedef unsigned char SHA_BYTE; | |
#if SIZEOF_INT == 4 | |
typedef unsigned int SHA_INT32; /* 32-bit integer */ | |
typedef unsigned PY_LONG_LONG SHA_INT64; /* 64-bit integer */ | |
#else | |
/* not defined. compilation will die. */ | |
#endif | |
/* The SHA block size and message digest sizes, in bytes */ | |
#define SHA_BLOCKSIZE 128 | |
#define SHA_DIGESTSIZE 64 | |
/* The structure for storing SHA info */ | |
typedef struct { | |
PyObject_HEAD | |
SHA_INT64 digest[8]; /* Message digest */ | |
SHA_INT32 count_lo, count_hi; /* 64-bit bit count */ | |
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */ | |
int Endianness; | |
int local; /* unprocessed amount in data */ | |
int digestsize; | |
} SHAobject; | |
/* When run on a little-endian CPU we need to perform byte reversal on an | |
array of longwords. */ | |
static void longReverse(SHA_INT64 *buffer, int byteCount, int Endianness) | |
{ | |
SHA_INT64 value; | |
if ( Endianness == PCT_BIG_ENDIAN ) | |
return; | |
byteCount /= sizeof(*buffer); | |
while (byteCount--) { | |
value = *buffer; | |
((unsigned char*)buffer)[0] = (unsigned char)(value >> 56) & 0xff; | |
((unsigned char*)buffer)[1] = (unsigned char)(value >> 48) & 0xff; | |
((unsigned char*)buffer)[2] = (unsigned char)(value >> 40) & 0xff; | |
((unsigned char*)buffer)[3] = (unsigned char)(value >> 32) & 0xff; | |
((unsigned char*)buffer)[4] = (unsigned char)(value >> 24) & 0xff; | |
((unsigned char*)buffer)[5] = (unsigned char)(value >> 16) & 0xff; | |
((unsigned char*)buffer)[6] = (unsigned char)(value >> 8) & 0xff; | |
((unsigned char*)buffer)[7] = (unsigned char)(value ) & 0xff; | |
buffer++; | |
} | |
} | |
static void SHAcopy(SHAobject *src, SHAobject *dest) | |
{ | |
dest->Endianness = src->Endianness; | |
dest->local = src->local; | |
dest->digestsize = src->digestsize; | |
dest->count_lo = src->count_lo; | |
dest->count_hi = src->count_hi; | |
memcpy(dest->digest, src->digest, sizeof(src->digest)); | |
memcpy(dest->data, src->data, sizeof(src->data)); | |
} | |
/* ------------------------------------------------------------------------ | |
* | |
* This code for the SHA-512 algorithm was noted as public domain. The | |
* original headers are pasted below. | |
* | |
* Several changes have been made to make it more compatible with the | |
* Python environment and desired interface. | |
* | |
*/ | |
/* LibTomCrypt, modular cryptographic library -- Tom St Denis | |
* | |
* LibTomCrypt is a library that provides various cryptographic | |
* algorithms in a highly modular and flexible manner. | |
* | |
* The library is free for all purposes without any express | |
* gurantee it works. | |
* | |
* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org | |
*/ | |
/* SHA512 by Tom St Denis */ | |
/* Various logical functions */ | |
#define ROR64(x, y) \ | |
( ((((x) & Py_ULL(0xFFFFFFFFFFFFFFFF))>>((unsigned PY_LONG_LONG)(y) & 63)) | \ | |
((x)<<((unsigned PY_LONG_LONG)(64-((y) & 63))))) & Py_ULL(0xFFFFFFFFFFFFFFFF)) | |
#define Ch(x,y,z) (z ^ (x & (y ^ z))) | |
#define Maj(x,y,z) (((x | y) & z) | (x & y)) | |
#define S(x, n) ROR64((x),(n)) | |
#define R(x, n) (((x) & Py_ULL(0xFFFFFFFFFFFFFFFF)) >> ((unsigned PY_LONG_LONG)n)) | |
#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39)) | |
#define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41)) | |
#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7)) | |
#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6)) | |
static void | |
sha512_transform(SHAobject *sha_info) | |
{ | |
int i; | |
SHA_INT64 S[8], W[80], t0, t1; | |
memcpy(W, sha_info->data, sizeof(sha_info->data)); | |
longReverse(W, (int)sizeof(sha_info->data), sha_info->Endianness); | |
for (i = 16; i < 80; ++i) { | |
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16]; | |
} | |
for (i = 0; i < 8; ++i) { | |
S[i] = sha_info->digest[i]; | |
} | |
/* Compress */ | |
#define RND(a,b,c,d,e,f,g,h,i,ki) \ | |
t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \ | |
t1 = Sigma0(a) + Maj(a, b, c); \ | |
d += t0; \ | |
h = t0 + t1; | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,Py_ULL(0x428a2f98d728ae22)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,Py_ULL(0x7137449123ef65cd)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,Py_ULL(0xb5c0fbcfec4d3b2f)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,Py_ULL(0xe9b5dba58189dbbc)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,Py_ULL(0x3956c25bf348b538)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,Py_ULL(0x59f111f1b605d019)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,Py_ULL(0x923f82a4af194f9b)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,Py_ULL(0xab1c5ed5da6d8118)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,Py_ULL(0xd807aa98a3030242)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,Py_ULL(0x12835b0145706fbe)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,Py_ULL(0x243185be4ee4b28c)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,Py_ULL(0x550c7dc3d5ffb4e2)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,Py_ULL(0x72be5d74f27b896f)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,Py_ULL(0x80deb1fe3b1696b1)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,Py_ULL(0x9bdc06a725c71235)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,Py_ULL(0xc19bf174cf692694)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,Py_ULL(0xe49b69c19ef14ad2)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,Py_ULL(0xefbe4786384f25e3)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,Py_ULL(0x0fc19dc68b8cd5b5)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,Py_ULL(0x240ca1cc77ac9c65)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,Py_ULL(0x2de92c6f592b0275)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,Py_ULL(0x4a7484aa6ea6e483)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,Py_ULL(0x5cb0a9dcbd41fbd4)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,Py_ULL(0x76f988da831153b5)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,Py_ULL(0x983e5152ee66dfab)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,Py_ULL(0xa831c66d2db43210)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,Py_ULL(0xb00327c898fb213f)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,Py_ULL(0xbf597fc7beef0ee4)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,Py_ULL(0xc6e00bf33da88fc2)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,Py_ULL(0xd5a79147930aa725)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,Py_ULL(0x06ca6351e003826f)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,Py_ULL(0x142929670a0e6e70)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,Py_ULL(0x27b70a8546d22ffc)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,Py_ULL(0x2e1b21385c26c926)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,Py_ULL(0x4d2c6dfc5ac42aed)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,Py_ULL(0x53380d139d95b3df)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,Py_ULL(0x650a73548baf63de)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,Py_ULL(0x766a0abb3c77b2a8)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,Py_ULL(0x81c2c92e47edaee6)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,Py_ULL(0x92722c851482353b)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,Py_ULL(0xa2bfe8a14cf10364)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,Py_ULL(0xa81a664bbc423001)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,Py_ULL(0xc24b8b70d0f89791)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,Py_ULL(0xc76c51a30654be30)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,Py_ULL(0xd192e819d6ef5218)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,Py_ULL(0xd69906245565a910)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,Py_ULL(0xf40e35855771202a)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,Py_ULL(0x106aa07032bbd1b8)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,Py_ULL(0x19a4c116b8d2d0c8)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,Py_ULL(0x1e376c085141ab53)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,Py_ULL(0x2748774cdf8eeb99)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,Py_ULL(0x34b0bcb5e19b48a8)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,Py_ULL(0x391c0cb3c5c95a63)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,Py_ULL(0x4ed8aa4ae3418acb)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,Py_ULL(0x5b9cca4f7763e373)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,Py_ULL(0x682e6ff3d6b2b8a3)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,Py_ULL(0x748f82ee5defb2fc)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,Py_ULL(0x78a5636f43172f60)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,Py_ULL(0x84c87814a1f0ab72)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,Py_ULL(0x8cc702081a6439ec)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,Py_ULL(0x90befffa23631e28)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,Py_ULL(0xa4506cebde82bde9)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,Py_ULL(0xbef9a3f7b2c67915)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,Py_ULL(0xc67178f2e372532b)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,Py_ULL(0xca273eceea26619c)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,Py_ULL(0xd186b8c721c0c207)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,Py_ULL(0xeada7dd6cde0eb1e)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,Py_ULL(0xf57d4f7fee6ed178)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,Py_ULL(0x06f067aa72176fba)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,Py_ULL(0x0a637dc5a2c898a6)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,Py_ULL(0x113f9804bef90dae)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,Py_ULL(0x1b710b35131c471b)); | |
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,Py_ULL(0x28db77f523047d84)); | |
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,Py_ULL(0x32caab7b40c72493)); | |
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,Py_ULL(0x3c9ebe0a15c9bebc)); | |
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,Py_ULL(0x431d67c49c100d4c)); | |
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,Py_ULL(0x4cc5d4becb3e42b6)); | |
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,Py_ULL(0x597f299cfc657e2a)); | |
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,Py_ULL(0x5fcb6fab3ad6faec)); | |
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,Py_ULL(0x6c44198c4a475817)); | |
#undef RND | |
/* feedback */ | |
for (i = 0; i < 8; i++) { | |
sha_info->digest[i] = sha_info->digest[i] + S[i]; | |
} | |
} | |
/* initialize the SHA digest */ | |
static void | |
sha512_init(SHAobject *sha_info) | |
{ | |
TestEndianness(sha_info->Endianness) | |
sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908); | |
sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b); | |
sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b); | |
sha_info->digest[3] = Py_ULL(0xa54ff53a5f1d36f1); | |
sha_info->digest[4] = Py_ULL(0x510e527fade682d1); | |
sha_info->digest[5] = Py_ULL(0x9b05688c2b3e6c1f); | |
sha_info->digest[6] = Py_ULL(0x1f83d9abfb41bd6b); | |
sha_info->digest[7] = Py_ULL(0x5be0cd19137e2179); | |
sha_info->count_lo = 0L; | |
sha_info->count_hi = 0L; | |
sha_info->local = 0; | |
sha_info->digestsize = 64; | |
} | |
static void | |
sha384_init(SHAobject *sha_info) | |
{ | |
TestEndianness(sha_info->Endianness) | |
sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8); | |
sha_info->digest[1] = Py_ULL(0x629a292a367cd507); | |
sha_info->digest[2] = Py_ULL(0x9159015a3070dd17); | |
sha_info->digest[3] = Py_ULL(0x152fecd8f70e5939); | |
sha_info->digest[4] = Py_ULL(0x67332667ffc00b31); | |
sha_info->digest[5] = Py_ULL(0x8eb44a8768581511); | |
sha_info->digest[6] = Py_ULL(0xdb0c2e0d64f98fa7); | |
sha_info->digest[7] = Py_ULL(0x47b5481dbefa4fa4); | |
sha_info->count_lo = 0L; | |
sha_info->count_hi = 0L; | |
sha_info->local = 0; | |
sha_info->digestsize = 48; | |
} | |
/* update the SHA digest */ | |
static void | |
sha512_update(SHAobject *sha_info, SHA_BYTE *buffer, int count) | |
{ | |
int i; | |
SHA_INT32 clo; | |
clo = sha_info->count_lo + ((SHA_INT32) count << 3); | |
if (clo < sha_info->count_lo) { | |
++sha_info->count_hi; | |
} | |
sha_info->count_lo = clo; | |
sha_info->count_hi += (SHA_INT32) count >> 29; | |
if (sha_info->local) { | |
i = SHA_BLOCKSIZE - sha_info->local; | |
if (i > count) { | |
i = count; | |
} | |
memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i); | |
count -= i; | |
buffer += i; | |
sha_info->local += i; | |
if (sha_info->local == SHA_BLOCKSIZE) { | |
sha512_transform(sha_info); | |
} | |
else { | |
return; | |
} | |
} | |
while (count >= SHA_BLOCKSIZE) { | |
memcpy(sha_info->data, buffer, SHA_BLOCKSIZE); | |
buffer += SHA_BLOCKSIZE; | |
count -= SHA_BLOCKSIZE; | |
sha512_transform(sha_info); | |
} | |
memcpy(sha_info->data, buffer, count); | |
sha_info->local = count; | |
} | |
/* finish computing the SHA digest */ | |
static void | |
sha512_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info) | |
{ | |
int count; | |
SHA_INT32 lo_bit_count, hi_bit_count; | |
lo_bit_count = sha_info->count_lo; | |
hi_bit_count = sha_info->count_hi; | |
count = (int) ((lo_bit_count >> 3) & 0x7f); | |
((SHA_BYTE *) sha_info->data)[count++] = 0x80; | |
if (count > SHA_BLOCKSIZE - 16) { | |
memset(((SHA_BYTE *) sha_info->data) + count, 0, | |
SHA_BLOCKSIZE - count); | |
sha512_transform(sha_info); | |
memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 16); | |
} | |
else { | |
memset(((SHA_BYTE *) sha_info->data) + count, 0, | |
SHA_BLOCKSIZE - 16 - count); | |
} | |
/* GJS: note that we add the hi/lo in big-endian. sha512_transform will | |
swap these values into host-order. */ | |
sha_info->data[112] = 0; | |
sha_info->data[113] = 0; | |
sha_info->data[114] = 0; | |
sha_info->data[115] = 0; | |
sha_info->data[116] = 0; | |
sha_info->data[117] = 0; | |
sha_info->data[118] = 0; | |
sha_info->data[119] = 0; | |
sha_info->data[120] = (hi_bit_count >> 24) & 0xff; | |
sha_info->data[121] = (hi_bit_count >> 16) & 0xff; | |
sha_info->data[122] = (hi_bit_count >> 8) & 0xff; | |
sha_info->data[123] = (hi_bit_count >> 0) & 0xff; | |
sha_info->data[124] = (lo_bit_count >> 24) & 0xff; | |
sha_info->data[125] = (lo_bit_count >> 16) & 0xff; | |
sha_info->data[126] = (lo_bit_count >> 8) & 0xff; | |
sha_info->data[127] = (lo_bit_count >> 0) & 0xff; | |
sha512_transform(sha_info); | |
digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 56) & 0xff); | |
digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 48) & 0xff); | |
digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 40) & 0xff); | |
digest[ 3] = (unsigned char) ((sha_info->digest[0] >> 32) & 0xff); | |
digest[ 4] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff); | |
digest[ 5] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff); | |
digest[ 6] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff); | |
digest[ 7] = (unsigned char) ((sha_info->digest[0] ) & 0xff); | |
digest[ 8] = (unsigned char) ((sha_info->digest[1] >> 56) & 0xff); | |
digest[ 9] = (unsigned char) ((sha_info->digest[1] >> 48) & 0xff); | |
digest[10] = (unsigned char) ((sha_info->digest[1] >> 40) & 0xff); | |
digest[11] = (unsigned char) ((sha_info->digest[1] >> 32) & 0xff); | |
digest[12] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff); | |
digest[13] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff); | |
digest[14] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff); | |
digest[15] = (unsigned char) ((sha_info->digest[1] ) & 0xff); | |
digest[16] = (unsigned char) ((sha_info->digest[2] >> 56) & 0xff); | |
digest[17] = (unsigned char) ((sha_info->digest[2] >> 48) & 0xff); | |
digest[18] = (unsigned char) ((sha_info->digest[2] >> 40) & 0xff); | |
digest[19] = (unsigned char) ((sha_info->digest[2] >> 32) & 0xff); | |
digest[20] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff); | |
digest[21] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff); | |
digest[22] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff); | |
digest[23] = (unsigned char) ((sha_info->digest[2] ) & 0xff); | |
digest[24] = (unsigned char) ((sha_info->digest[3] >> 56) & 0xff); | |
digest[25] = (unsigned char) ((sha_info->digest[3] >> 48) & 0xff); | |
digest[26] = (unsigned char) ((sha_info->digest[3] >> 40) & 0xff); | |
digest[27] = (unsigned char) ((sha_info->digest[3] >> 32) & 0xff); | |
digest[28] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff); | |
digest[29] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff); | |
digest[30] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff); | |
digest[31] = (unsigned char) ((sha_info->digest[3] ) & 0xff); | |
digest[32] = (unsigned char) ((sha_info->digest[4] >> 56) & 0xff); | |
digest[33] = (unsigned char) ((sha_info->digest[4] >> 48) & 0xff); | |
digest[34] = (unsigned char) ((sha_info->digest[4] >> 40) & 0xff); | |
digest[35] = (unsigned char) ((sha_info->digest[4] >> 32) & 0xff); | |
digest[36] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff); | |
digest[37] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff); | |
digest[38] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff); | |
digest[39] = (unsigned char) ((sha_info->digest[4] ) & 0xff); | |
digest[40] = (unsigned char) ((sha_info->digest[5] >> 56) & 0xff); | |
digest[41] = (unsigned char) ((sha_info->digest[5] >> 48) & 0xff); | |
digest[42] = (unsigned char) ((sha_info->digest[5] >> 40) & 0xff); | |
digest[43] = (unsigned char) ((sha_info->digest[5] >> 32) & 0xff); | |
digest[44] = (unsigned char) ((sha_info->digest[5] >> 24) & 0xff); | |
digest[45] = (unsigned char) ((sha_info->digest[5] >> 16) & 0xff); | |
digest[46] = (unsigned char) ((sha_info->digest[5] >> 8) & 0xff); | |
digest[47] = (unsigned char) ((sha_info->digest[5] ) & 0xff); | |
digest[48] = (unsigned char) ((sha_info->digest[6] >> 56) & 0xff); | |
digest[49] = (unsigned char) ((sha_info->digest[6] >> 48) & 0xff); | |
digest[50] = (unsigned char) ((sha_info->digest[6] >> 40) & 0xff); | |
digest[51] = (unsigned char) ((sha_info->digest[6] >> 32) & 0xff); | |
digest[52] = (unsigned char) ((sha_info->digest[6] >> 24) & 0xff); | |
digest[53] = (unsigned char) ((sha_info->digest[6] >> 16) & 0xff); | |
digest[54] = (unsigned char) ((sha_info->digest[6] >> 8) & 0xff); | |
digest[55] = (unsigned char) ((sha_info->digest[6] ) & 0xff); | |
digest[56] = (unsigned char) ((sha_info->digest[7] >> 56) & 0xff); | |
digest[57] = (unsigned char) ((sha_info->digest[7] >> 48) & 0xff); | |
digest[58] = (unsigned char) ((sha_info->digest[7] >> 40) & 0xff); | |
digest[59] = (unsigned char) ((sha_info->digest[7] >> 32) & 0xff); | |
digest[60] = (unsigned char) ((sha_info->digest[7] >> 24) & 0xff); | |
digest[61] = (unsigned char) ((sha_info->digest[7] >> 16) & 0xff); | |
digest[62] = (unsigned char) ((sha_info->digest[7] >> 8) & 0xff); | |
digest[63] = (unsigned char) ((sha_info->digest[7] ) & 0xff); | |
} | |
/* | |
* End of copied SHA code. | |
* | |
* ------------------------------------------------------------------------ | |
*/ | |
static PyTypeObject SHA384type; | |
static PyTypeObject SHA512type; | |
static SHAobject * | |
newSHA384object(void) | |
{ | |
return (SHAobject *)PyObject_New(SHAobject, &SHA384type); | |
} | |
static SHAobject * | |
newSHA512object(void) | |
{ | |
return (SHAobject *)PyObject_New(SHAobject, &SHA512type); | |
} | |
/* Internal methods for a hash object */ | |
static void | |
SHA512_dealloc(PyObject *ptr) | |
{ | |
PyObject_Del(ptr); | |
} | |
/* External methods for a hash object */ | |
PyDoc_STRVAR(SHA512_copy__doc__, "Return a copy of the hash object."); | |
static PyObject * | |
SHA512_copy(SHAobject *self, PyObject *unused) | |
{ | |
SHAobject *newobj; | |
if (((PyObject*)self)->ob_type == &SHA512type) { | |
if ( (newobj = newSHA512object())==NULL) | |
return NULL; | |
} else { | |
if ( (newobj = newSHA384object())==NULL) | |
return NULL; | |
} | |
SHAcopy(self, newobj); | |
return (PyObject *)newobj; | |
} | |
PyDoc_STRVAR(SHA512_digest__doc__, | |
"Return the digest value as a string of binary data."); | |
static PyObject * | |
SHA512_digest(SHAobject *self, PyObject *unused) | |
{ | |
unsigned char digest[SHA_DIGESTSIZE]; | |
SHAobject temp; | |
SHAcopy(self, &temp); | |
sha512_final(digest, &temp); | |
return PyString_FromStringAndSize((const char *)digest, self->digestsize); | |
} | |
PyDoc_STRVAR(SHA512_hexdigest__doc__, | |
"Return the digest value as a string of hexadecimal digits."); | |
static PyObject * | |
SHA512_hexdigest(SHAobject *self, PyObject *unused) | |
{ | |
unsigned char digest[SHA_DIGESTSIZE]; | |
SHAobject temp; | |
PyObject *retval; | |
char *hex_digest; | |
int i, j; | |
/* Get the raw (binary) digest value */ | |
SHAcopy(self, &temp); | |
sha512_final(digest, &temp); | |
/* Create a new string */ | |
retval = PyString_FromStringAndSize(NULL, self->digestsize * 2); | |
if (!retval) | |
return NULL; | |
hex_digest = PyString_AsString(retval); | |
if (!hex_digest) { | |
Py_DECREF(retval); | |
return NULL; | |
} | |
/* Make hex version of the digest */ | |
for (i=j=0; i<self->digestsize; i++) { | |
char c; | |
c = (digest[i] >> 4) & 0xf; | |
c = (c>9) ? c+'a'-10 : c + '0'; | |
hex_digest[j++] = c; | |
c = (digest[i] & 0xf); | |
c = (c>9) ? c+'a'-10 : c + '0'; | |
hex_digest[j++] = c; | |
} | |
return retval; | |
} | |
PyDoc_STRVAR(SHA512_update__doc__, | |
"Update this hash object's state with the provided string."); | |
static PyObject * | |
SHA512_update(SHAobject *self, PyObject *args) | |
{ | |
Py_buffer buf; | |
if (!PyArg_ParseTuple(args, "s*:update", &buf)) | |
return NULL; | |
sha512_update(self, buf.buf, buf.len); | |
PyBuffer_Release(&buf); | |
Py_RETURN_NONE; | |
} | |
static PyMethodDef SHA_methods[] = { | |
{"copy", (PyCFunction)SHA512_copy, METH_NOARGS, SHA512_copy__doc__}, | |
{"digest", (PyCFunction)SHA512_digest, METH_NOARGS, SHA512_digest__doc__}, | |
{"hexdigest", (PyCFunction)SHA512_hexdigest, METH_NOARGS, SHA512_hexdigest__doc__}, | |
{"update", (PyCFunction)SHA512_update, METH_VARARGS, SHA512_update__doc__}, | |
{NULL, NULL} /* sentinel */ | |
}; | |
static PyObject * | |
SHA512_get_block_size(PyObject *self, void *closure) | |
{ | |
return PyInt_FromLong(SHA_BLOCKSIZE); | |
} | |
static PyObject * | |
SHA512_get_name(PyObject *self, void *closure) | |
{ | |
if (((SHAobject *)self)->digestsize == 64) | |
return PyString_FromStringAndSize("SHA512", 6); | |
else | |
return PyString_FromStringAndSize("SHA384", 6); | |
} | |
static PyGetSetDef SHA_getseters[] = { | |
{"block_size", | |
(getter)SHA512_get_block_size, NULL, | |
NULL, | |
NULL}, | |
{"name", | |
(getter)SHA512_get_name, NULL, | |
NULL, | |
NULL}, | |
{NULL} /* Sentinel */ | |
}; | |
static PyMemberDef SHA_members[] = { | |
{"digest_size", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL}, | |
/* the old md5 and sha modules support 'digest_size' as in PEP 247. | |
* the old sha module also supported 'digestsize'. ugh. */ | |
{"digestsize", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL}, | |
{NULL} /* Sentinel */ | |
}; | |
static PyTypeObject SHA384type = { | |
PyVarObject_HEAD_INIT(NULL, 0) | |
"_sha512.sha384", /*tp_name*/ | |
sizeof(SHAobject), /*tp_size*/ | |
0, /*tp_itemsize*/ | |
/* methods */ | |
SHA512_dealloc, /*tp_dealloc*/ | |
0, /*tp_print*/ | |
0, /*tp_getattr*/ | |
0, /*tp_setattr*/ | |
0, /*tp_compare*/ | |
0, /*tp_repr*/ | |
0, /*tp_as_number*/ | |
0, /*tp_as_sequence*/ | |
0, /*tp_as_mapping*/ | |
0, /*tp_hash*/ | |
0, /*tp_call*/ | |
0, /*tp_str*/ | |
0, /*tp_getattro*/ | |
0, /*tp_setattro*/ | |
0, /*tp_as_buffer*/ | |
Py_TPFLAGS_DEFAULT, /*tp_flags*/ | |
0, /*tp_doc*/ | |
0, /*tp_traverse*/ | |
0, /*tp_clear*/ | |
0, /*tp_richcompare*/ | |
0, /*tp_weaklistoffset*/ | |
0, /*tp_iter*/ | |
0, /*tp_iternext*/ | |
SHA_methods, /* tp_methods */ | |
SHA_members, /* tp_members */ | |
SHA_getseters, /* tp_getset */ | |
}; | |
static PyTypeObject SHA512type = { | |
PyVarObject_HEAD_INIT(NULL, 0) | |
"_sha512.sha512", /*tp_name*/ | |
sizeof(SHAobject), /*tp_size*/ | |
0, /*tp_itemsize*/ | |
/* methods */ | |
SHA512_dealloc, /*tp_dealloc*/ | |
0, /*tp_print*/ | |
0, /*tp_getattr*/ | |
0, /*tp_setattr*/ | |
0, /*tp_compare*/ | |
0, /*tp_repr*/ | |
0, /*tp_as_number*/ | |
0, /*tp_as_sequence*/ | |
0, /*tp_as_mapping*/ | |
0, /*tp_hash*/ | |
0, /*tp_call*/ | |
0, /*tp_str*/ | |
0, /*tp_getattro*/ | |
0, /*tp_setattro*/ | |
0, /*tp_as_buffer*/ | |
Py_TPFLAGS_DEFAULT, /*tp_flags*/ | |
0, /*tp_doc*/ | |
0, /*tp_traverse*/ | |
0, /*tp_clear*/ | |
0, /*tp_richcompare*/ | |
0, /*tp_weaklistoffset*/ | |
0, /*tp_iter*/ | |
0, /*tp_iternext*/ | |
SHA_methods, /* tp_methods */ | |
SHA_members, /* tp_members */ | |
SHA_getseters, /* tp_getset */ | |
}; | |
/* The single module-level function: new() */ | |
PyDoc_STRVAR(SHA512_new__doc__, | |
"Return a new SHA-512 hash object; optionally initialized with a string."); | |
static PyObject * | |
SHA512_new(PyObject *self, PyObject *args, PyObject *kwdict) | |
{ | |
static char *kwlist[] = {"string", NULL}; | |
SHAobject *new; | |
Py_buffer buf = { 0 }; | |
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s*:new", kwlist, | |
&buf)) { | |
return NULL; | |
} | |
if ((new = newSHA512object()) == NULL) { | |
PyBuffer_Release(&buf); | |
return NULL; | |
} | |
sha512_init(new); | |
if (PyErr_Occurred()) { | |
Py_DECREF(new); | |
PyBuffer_Release(&buf); | |
return NULL; | |
} | |
if (buf.len > 0) { | |
sha512_update(new, buf.buf, buf.len); | |
} | |
PyBuffer_Release(&buf); | |
return (PyObject *)new; | |
} | |
PyDoc_STRVAR(SHA384_new__doc__, | |
"Return a new SHA-384 hash object; optionally initialized with a string."); | |
static PyObject * | |
SHA384_new(PyObject *self, PyObject *args, PyObject *kwdict) | |
{ | |
static char *kwlist[] = {"string", NULL}; | |
SHAobject *new; | |
Py_buffer buf = { 0 }; | |
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s*:new", kwlist, | |
&buf)) { | |
return NULL; | |
} | |
if ((new = newSHA384object()) == NULL) { | |
PyBuffer_Release(&buf); | |
return NULL; | |
} | |
sha384_init(new); | |
if (PyErr_Occurred()) { | |
Py_DECREF(new); | |
PyBuffer_Release(&buf); | |
return NULL; | |
} | |
if (buf.len > 0) { | |
sha512_update(new, buf.buf, buf.len); | |
} | |
PyBuffer_Release(&buf); | |
return (PyObject *)new; | |
} | |
/* List of functions exported by this module */ | |
static struct PyMethodDef SHA_functions[] = { | |
{"sha512", (PyCFunction)SHA512_new, METH_VARARGS|METH_KEYWORDS, SHA512_new__doc__}, | |
{"sha384", (PyCFunction)SHA384_new, METH_VARARGS|METH_KEYWORDS, SHA384_new__doc__}, | |
{NULL, NULL} /* Sentinel */ | |
}; | |
/* Initialize this module. */ | |
#define insint(n,v) { PyModule_AddIntConstant(m,n,v); } | |
PyMODINIT_FUNC | |
init_sha512(void) | |
{ | |
PyObject *m; | |
Py_TYPE(&SHA384type) = &PyType_Type; | |
if (PyType_Ready(&SHA384type) < 0) | |
return; | |
Py_TYPE(&SHA512type) = &PyType_Type; | |
if (PyType_Ready(&SHA512type) < 0) | |
return; | |
m = Py_InitModule("_sha512", SHA_functions); | |
if (m == NULL) | |
return; | |
} | |
#endif |