3
/* This module provides an interface to NIST's SHA-512 and SHA-384 Algorithms */
5
/* See below for information about the original code this module was
6
based upon. Additional work performed by:
8
Andrew Kuchling (amk@amk.ca)
9
Greg Stein (gstein@lyra.org)
10
Trevor Perrin (trevp@trevp.net)
12
Copyright (C) 2005-2007 Gregory P. Smith (greg@krypto.org)
13
Licensed to PSF under a Contributor Agreement.
20
#include "structmember.h"
23
#ifdef PY_LONG_LONG /* If no PY_LONG_LONG, don't compile anything! */
25
/* Some useful types */
27
typedef unsigned char SHA_BYTE;
30
typedef unsigned int SHA_INT32; /* 32-bit integer */
31
typedef unsigned PY_LONG_LONG SHA_INT64; /* 64-bit integer */
33
/* not defined. compilation will die. */
36
/* The SHA block size and message digest sizes, in bytes */
38
#define SHA_BLOCKSIZE 128
39
#define SHA_DIGESTSIZE 64
41
/* The structure for storing SHA info */
45
SHA_INT64 digest[8]; /* Message digest */
46
SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
47
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
48
int local; /* unprocessed amount in data */
52
/* When run on a little-endian CPU we need to perform byte reversal on an
53
array of longwords. */
56
static void longReverse(SHA_INT64 *buffer, int byteCount)
60
byteCount /= sizeof(*buffer);
64
((unsigned char*)buffer)[0] = (unsigned char)(value >> 56) & 0xff;
65
((unsigned char*)buffer)[1] = (unsigned char)(value >> 48) & 0xff;
66
((unsigned char*)buffer)[2] = (unsigned char)(value >> 40) & 0xff;
67
((unsigned char*)buffer)[3] = (unsigned char)(value >> 32) & 0xff;
68
((unsigned char*)buffer)[4] = (unsigned char)(value >> 24) & 0xff;
69
((unsigned char*)buffer)[5] = (unsigned char)(value >> 16) & 0xff;
70
((unsigned char*)buffer)[6] = (unsigned char)(value >> 8) & 0xff;
71
((unsigned char*)buffer)[7] = (unsigned char)(value ) & 0xff;
78
static void SHAcopy(SHAobject *src, SHAobject *dest)
80
dest->local = src->local;
81
dest->digestsize = src->digestsize;
82
dest->count_lo = src->count_lo;
83
dest->count_hi = src->count_hi;
84
memcpy(dest->digest, src->digest, sizeof(src->digest));
85
memcpy(dest->data, src->data, sizeof(src->data));
89
/* ------------------------------------------------------------------------
91
* This code for the SHA-512 algorithm was noted as public domain. The
92
* original headers are pasted below.
94
* Several changes have been made to make it more compatible with the
95
* Python environment and desired interface.
99
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
101
* LibTomCrypt is a library that provides various cryptographic
102
* algorithms in a highly modular and flexible manner.
104
* The library is free for all purposes without any express
107
* Tom St Denis, tomstdenis@iahu.ca, http://libtom.org
111
/* SHA512 by Tom St Denis */
113
/* Various logical functions */
114
#define ROR64(x, y) \
115
( ((((x) & Py_ULL(0xFFFFFFFFFFFFFFFF))>>((unsigned PY_LONG_LONG)(y) & 63)) | \
116
((x)<<((unsigned PY_LONG_LONG)(64-((y) & 63))))) & Py_ULL(0xFFFFFFFFFFFFFFFF))
117
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
118
#define Maj(x,y,z) (((x | y) & z) | (x & y))
119
#define S(x, n) ROR64((x),(n))
120
#define R(x, n) (((x) & Py_ULL(0xFFFFFFFFFFFFFFFF)) >> ((unsigned PY_LONG_LONG)n))
121
#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
122
#define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
123
#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
124
#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
128
sha512_transform(SHAobject *sha_info)
131
SHA_INT64 S[8], W[80], t0, t1;
133
memcpy(W, sha_info->data, sizeof(sha_info->data));
135
longReverse(W, (int)sizeof(sha_info->data));
138
for (i = 16; i < 80; ++i) {
139
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
141
for (i = 0; i < 8; ++i) {
142
S[i] = sha_info->digest[i];
146
#define RND(a,b,c,d,e,f,g,h,i,ki) \
147
t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
148
t1 = Sigma0(a) + Maj(a, b, c); \
152
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,Py_ULL(0x428a2f98d728ae22));
153
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,Py_ULL(0x7137449123ef65cd));
154
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,Py_ULL(0xb5c0fbcfec4d3b2f));
155
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,Py_ULL(0xe9b5dba58189dbbc));
156
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,Py_ULL(0x3956c25bf348b538));
157
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,Py_ULL(0x59f111f1b605d019));
158
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,Py_ULL(0x923f82a4af194f9b));
159
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,Py_ULL(0xab1c5ed5da6d8118));
160
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,Py_ULL(0xd807aa98a3030242));
161
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,Py_ULL(0x12835b0145706fbe));
162
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,Py_ULL(0x243185be4ee4b28c));
163
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,Py_ULL(0x550c7dc3d5ffb4e2));
164
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,Py_ULL(0x72be5d74f27b896f));
165
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,Py_ULL(0x80deb1fe3b1696b1));
166
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,Py_ULL(0x9bdc06a725c71235));
167
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,Py_ULL(0xc19bf174cf692694));
168
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,Py_ULL(0xe49b69c19ef14ad2));
169
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,Py_ULL(0xefbe4786384f25e3));
170
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,Py_ULL(0x0fc19dc68b8cd5b5));
171
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,Py_ULL(0x240ca1cc77ac9c65));
172
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,Py_ULL(0x2de92c6f592b0275));
173
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,Py_ULL(0x4a7484aa6ea6e483));
174
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,Py_ULL(0x5cb0a9dcbd41fbd4));
175
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,Py_ULL(0x76f988da831153b5));
176
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,Py_ULL(0x983e5152ee66dfab));
177
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,Py_ULL(0xa831c66d2db43210));
178
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,Py_ULL(0xb00327c898fb213f));
179
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,Py_ULL(0xbf597fc7beef0ee4));
180
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,Py_ULL(0xc6e00bf33da88fc2));
181
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,Py_ULL(0xd5a79147930aa725));
182
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,Py_ULL(0x06ca6351e003826f));
183
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,Py_ULL(0x142929670a0e6e70));
184
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,Py_ULL(0x27b70a8546d22ffc));
185
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,Py_ULL(0x2e1b21385c26c926));
186
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,Py_ULL(0x4d2c6dfc5ac42aed));
187
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,Py_ULL(0x53380d139d95b3df));
188
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,Py_ULL(0x650a73548baf63de));
189
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,Py_ULL(0x766a0abb3c77b2a8));
190
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,Py_ULL(0x81c2c92e47edaee6));
191
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,Py_ULL(0x92722c851482353b));
192
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,Py_ULL(0xa2bfe8a14cf10364));
193
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,Py_ULL(0xa81a664bbc423001));
194
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,Py_ULL(0xc24b8b70d0f89791));
195
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,Py_ULL(0xc76c51a30654be30));
196
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,Py_ULL(0xd192e819d6ef5218));
197
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,Py_ULL(0xd69906245565a910));
198
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,Py_ULL(0xf40e35855771202a));
199
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,Py_ULL(0x106aa07032bbd1b8));
200
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,Py_ULL(0x19a4c116b8d2d0c8));
201
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,Py_ULL(0x1e376c085141ab53));
202
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,Py_ULL(0x2748774cdf8eeb99));
203
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,Py_ULL(0x34b0bcb5e19b48a8));
204
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,Py_ULL(0x391c0cb3c5c95a63));
205
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,Py_ULL(0x4ed8aa4ae3418acb));
206
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,Py_ULL(0x5b9cca4f7763e373));
207
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,Py_ULL(0x682e6ff3d6b2b8a3));
208
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,Py_ULL(0x748f82ee5defb2fc));
209
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,Py_ULL(0x78a5636f43172f60));
210
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,Py_ULL(0x84c87814a1f0ab72));
211
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,Py_ULL(0x8cc702081a6439ec));
212
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,Py_ULL(0x90befffa23631e28));
213
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,Py_ULL(0xa4506cebde82bde9));
214
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,Py_ULL(0xbef9a3f7b2c67915));
215
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,Py_ULL(0xc67178f2e372532b));
216
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,Py_ULL(0xca273eceea26619c));
217
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,Py_ULL(0xd186b8c721c0c207));
218
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,Py_ULL(0xeada7dd6cde0eb1e));
219
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,Py_ULL(0xf57d4f7fee6ed178));
220
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,Py_ULL(0x06f067aa72176fba));
221
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,Py_ULL(0x0a637dc5a2c898a6));
222
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,Py_ULL(0x113f9804bef90dae));
223
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,Py_ULL(0x1b710b35131c471b));
224
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,Py_ULL(0x28db77f523047d84));
225
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,Py_ULL(0x32caab7b40c72493));
226
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,Py_ULL(0x3c9ebe0a15c9bebc));
227
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,Py_ULL(0x431d67c49c100d4c));
228
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,Py_ULL(0x4cc5d4becb3e42b6));
229
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,Py_ULL(0x597f299cfc657e2a));
230
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,Py_ULL(0x5fcb6fab3ad6faec));
231
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,Py_ULL(0x6c44198c4a475817));
236
for (i = 0; i < 8; i++) {
237
sha_info->digest[i] = sha_info->digest[i] + S[i];
244
/* initialize the SHA digest */
247
sha512_init(SHAobject *sha_info)
249
sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908);
250
sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b);
251
sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b);
252
sha_info->digest[3] = Py_ULL(0xa54ff53a5f1d36f1);
253
sha_info->digest[4] = Py_ULL(0x510e527fade682d1);
254
sha_info->digest[5] = Py_ULL(0x9b05688c2b3e6c1f);
255
sha_info->digest[6] = Py_ULL(0x1f83d9abfb41bd6b);
256
sha_info->digest[7] = Py_ULL(0x5be0cd19137e2179);
257
sha_info->count_lo = 0L;
258
sha_info->count_hi = 0L;
260
sha_info->digestsize = 64;
264
sha384_init(SHAobject *sha_info)
266
sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8);
267
sha_info->digest[1] = Py_ULL(0x629a292a367cd507);
268
sha_info->digest[2] = Py_ULL(0x9159015a3070dd17);
269
sha_info->digest[3] = Py_ULL(0x152fecd8f70e5939);
270
sha_info->digest[4] = Py_ULL(0x67332667ffc00b31);
271
sha_info->digest[5] = Py_ULL(0x8eb44a8768581511);
272
sha_info->digest[6] = Py_ULL(0xdb0c2e0d64f98fa7);
273
sha_info->digest[7] = Py_ULL(0x47b5481dbefa4fa4);
274
sha_info->count_lo = 0L;
275
sha_info->count_hi = 0L;
277
sha_info->digestsize = 48;
281
/* update the SHA digest */
284
sha512_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count)
289
clo = sha_info->count_lo + ((SHA_INT32) count << 3);
290
if (clo < sha_info->count_lo) {
291
++sha_info->count_hi;
293
sha_info->count_lo = clo;
294
sha_info->count_hi += (SHA_INT32) count >> 29;
295
if (sha_info->local) {
296
i = SHA_BLOCKSIZE - sha_info->local;
300
memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i);
303
sha_info->local += (int)i;
304
if (sha_info->local == SHA_BLOCKSIZE) {
305
sha512_transform(sha_info);
311
while (count >= SHA_BLOCKSIZE) {
312
memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
313
buffer += SHA_BLOCKSIZE;
314
count -= SHA_BLOCKSIZE;
315
sha512_transform(sha_info);
317
memcpy(sha_info->data, buffer, count);
318
sha_info->local = (int)count;
321
/* finish computing the SHA digest */
324
sha512_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
327
SHA_INT32 lo_bit_count, hi_bit_count;
329
lo_bit_count = sha_info->count_lo;
330
hi_bit_count = sha_info->count_hi;
331
count = (int) ((lo_bit_count >> 3) & 0x7f);
332
((SHA_BYTE *) sha_info->data)[count++] = 0x80;
333
if (count > SHA_BLOCKSIZE - 16) {
334
memset(((SHA_BYTE *) sha_info->data) + count, 0,
335
SHA_BLOCKSIZE - count);
336
sha512_transform(sha_info);
337
memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 16);
340
memset(((SHA_BYTE *) sha_info->data) + count, 0,
341
SHA_BLOCKSIZE - 16 - count);
344
/* GJS: note that we add the hi/lo in big-endian. sha512_transform will
345
swap these values into host-order. */
346
sha_info->data[112] = 0;
347
sha_info->data[113] = 0;
348
sha_info->data[114] = 0;
349
sha_info->data[115] = 0;
350
sha_info->data[116] = 0;
351
sha_info->data[117] = 0;
352
sha_info->data[118] = 0;
353
sha_info->data[119] = 0;
354
sha_info->data[120] = (hi_bit_count >> 24) & 0xff;
355
sha_info->data[121] = (hi_bit_count >> 16) & 0xff;
356
sha_info->data[122] = (hi_bit_count >> 8) & 0xff;
357
sha_info->data[123] = (hi_bit_count >> 0) & 0xff;
358
sha_info->data[124] = (lo_bit_count >> 24) & 0xff;
359
sha_info->data[125] = (lo_bit_count >> 16) & 0xff;
360
sha_info->data[126] = (lo_bit_count >> 8) & 0xff;
361
sha_info->data[127] = (lo_bit_count >> 0) & 0xff;
362
sha512_transform(sha_info);
363
digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 56) & 0xff);
364
digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 48) & 0xff);
365
digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 40) & 0xff);
366
digest[ 3] = (unsigned char) ((sha_info->digest[0] >> 32) & 0xff);
367
digest[ 4] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff);
368
digest[ 5] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff);
369
digest[ 6] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff);
370
digest[ 7] = (unsigned char) ((sha_info->digest[0] ) & 0xff);
371
digest[ 8] = (unsigned char) ((sha_info->digest[1] >> 56) & 0xff);
372
digest[ 9] = (unsigned char) ((sha_info->digest[1] >> 48) & 0xff);
373
digest[10] = (unsigned char) ((sha_info->digest[1] >> 40) & 0xff);
374
digest[11] = (unsigned char) ((sha_info->digest[1] >> 32) & 0xff);
375
digest[12] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff);
376
digest[13] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff);
377
digest[14] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff);
378
digest[15] = (unsigned char) ((sha_info->digest[1] ) & 0xff);
379
digest[16] = (unsigned char) ((sha_info->digest[2] >> 56) & 0xff);
380
digest[17] = (unsigned char) ((sha_info->digest[2] >> 48) & 0xff);
381
digest[18] = (unsigned char) ((sha_info->digest[2] >> 40) & 0xff);
382
digest[19] = (unsigned char) ((sha_info->digest[2] >> 32) & 0xff);
383
digest[20] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff);
384
digest[21] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff);
385
digest[22] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff);
386
digest[23] = (unsigned char) ((sha_info->digest[2] ) & 0xff);
387
digest[24] = (unsigned char) ((sha_info->digest[3] >> 56) & 0xff);
388
digest[25] = (unsigned char) ((sha_info->digest[3] >> 48) & 0xff);
389
digest[26] = (unsigned char) ((sha_info->digest[3] >> 40) & 0xff);
390
digest[27] = (unsigned char) ((sha_info->digest[3] >> 32) & 0xff);
391
digest[28] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff);
392
digest[29] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff);
393
digest[30] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff);
394
digest[31] = (unsigned char) ((sha_info->digest[3] ) & 0xff);
395
digest[32] = (unsigned char) ((sha_info->digest[4] >> 56) & 0xff);
396
digest[33] = (unsigned char) ((sha_info->digest[4] >> 48) & 0xff);
397
digest[34] = (unsigned char) ((sha_info->digest[4] >> 40) & 0xff);
398
digest[35] = (unsigned char) ((sha_info->digest[4] >> 32) & 0xff);
399
digest[36] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff);
400
digest[37] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff);
401
digest[38] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff);
402
digest[39] = (unsigned char) ((sha_info->digest[4] ) & 0xff);
403
digest[40] = (unsigned char) ((sha_info->digest[5] >> 56) & 0xff);
404
digest[41] = (unsigned char) ((sha_info->digest[5] >> 48) & 0xff);
405
digest[42] = (unsigned char) ((sha_info->digest[5] >> 40) & 0xff);
406
digest[43] = (unsigned char) ((sha_info->digest[5] >> 32) & 0xff);
407
digest[44] = (unsigned char) ((sha_info->digest[5] >> 24) & 0xff);
408
digest[45] = (unsigned char) ((sha_info->digest[5] >> 16) & 0xff);
409
digest[46] = (unsigned char) ((sha_info->digest[5] >> 8) & 0xff);
410
digest[47] = (unsigned char) ((sha_info->digest[5] ) & 0xff);
411
digest[48] = (unsigned char) ((sha_info->digest[6] >> 56) & 0xff);
412
digest[49] = (unsigned char) ((sha_info->digest[6] >> 48) & 0xff);
413
digest[50] = (unsigned char) ((sha_info->digest[6] >> 40) & 0xff);
414
digest[51] = (unsigned char) ((sha_info->digest[6] >> 32) & 0xff);
415
digest[52] = (unsigned char) ((sha_info->digest[6] >> 24) & 0xff);
416
digest[53] = (unsigned char) ((sha_info->digest[6] >> 16) & 0xff);
417
digest[54] = (unsigned char) ((sha_info->digest[6] >> 8) & 0xff);
418
digest[55] = (unsigned char) ((sha_info->digest[6] ) & 0xff);
419
digest[56] = (unsigned char) ((sha_info->digest[7] >> 56) & 0xff);
420
digest[57] = (unsigned char) ((sha_info->digest[7] >> 48) & 0xff);
421
digest[58] = (unsigned char) ((sha_info->digest[7] >> 40) & 0xff);
422
digest[59] = (unsigned char) ((sha_info->digest[7] >> 32) & 0xff);
423
digest[60] = (unsigned char) ((sha_info->digest[7] >> 24) & 0xff);
424
digest[61] = (unsigned char) ((sha_info->digest[7] >> 16) & 0xff);
425
digest[62] = (unsigned char) ((sha_info->digest[7] >> 8) & 0xff);
426
digest[63] = (unsigned char) ((sha_info->digest[7] ) & 0xff);
430
* End of copied SHA code.
432
* ------------------------------------------------------------------------
435
static PyTypeObject SHA384type;
436
static PyTypeObject SHA512type;
440
newSHA384object(void)
442
return (SHAobject *)PyObject_New(SHAobject, &SHA384type);
446
newSHA512object(void)
448
return (SHAobject *)PyObject_New(SHAobject, &SHA512type);
451
/* Internal methods for a hash object */
454
SHA512_dealloc(PyObject *ptr)
460
/* External methods for a hash object */
462
PyDoc_STRVAR(SHA512_copy__doc__, "Return a copy of the hash object.");
465
SHA512_copy(SHAobject *self, PyObject *unused)
469
if (((PyObject*)self)->ob_type == &SHA512type) {
470
if ( (newobj = newSHA512object())==NULL)
473
if ( (newobj = newSHA384object())==NULL)
477
SHAcopy(self, newobj);
478
return (PyObject *)newobj;
481
PyDoc_STRVAR(SHA512_digest__doc__,
482
"Return the digest value as a string of binary data.");
485
SHA512_digest(SHAobject *self, PyObject *unused)
487
unsigned char digest[SHA_DIGESTSIZE];
490
SHAcopy(self, &temp);
491
sha512_final(digest, &temp);
492
return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);
495
PyDoc_STRVAR(SHA512_hexdigest__doc__,
496
"Return the digest value as a string of hexadecimal digits.");
499
SHA512_hexdigest(SHAobject *self, PyObject *unused)
501
unsigned char digest[SHA_DIGESTSIZE];
507
/* Get the raw (binary) digest value */
508
SHAcopy(self, &temp);
509
sha512_final(digest, &temp);
511
/* Create a new string */
512
retval = PyUnicode_New(self->digestsize * 2, 127);
515
hex_digest = PyUnicode_1BYTE_DATA(retval);
517
/* Make hex version of the digest */
518
for (i=j=0; i<self->digestsize; i++) {
520
c = (digest[i] >> 4) & 0xf;
521
hex_digest[j++] = Py_hexdigits[c];
522
c = (digest[i] & 0xf);
523
hex_digest[j++] = Py_hexdigits[c];
526
assert(_PyUnicode_CheckConsistency(retval, 1));
531
PyDoc_STRVAR(SHA512_update__doc__,
532
"Update this hash object's state with the provided string.");
535
SHA512_update(SHAobject *self, PyObject *args)
540
if (!PyArg_ParseTuple(args, "O:update", &obj))
543
GET_BUFFER_VIEW_OR_ERROUT(obj, &buf);
545
sha512_update(self, buf.buf, buf.len);
547
PyBuffer_Release(&buf);
552
static PyMethodDef SHA_methods[] = {
553
{"copy", (PyCFunction)SHA512_copy, METH_NOARGS, SHA512_copy__doc__},
554
{"digest", (PyCFunction)SHA512_digest, METH_NOARGS, SHA512_digest__doc__},
555
{"hexdigest", (PyCFunction)SHA512_hexdigest, METH_NOARGS, SHA512_hexdigest__doc__},
556
{"update", (PyCFunction)SHA512_update, METH_VARARGS, SHA512_update__doc__},
557
{NULL, NULL} /* sentinel */
561
SHA512_get_block_size(PyObject *self, void *closure)
563
return PyLong_FromLong(SHA_BLOCKSIZE);
567
SHA512_get_name(PyObject *self, void *closure)
569
if (((SHAobject *)self)->digestsize == 64)
570
return PyUnicode_FromStringAndSize("sha512", 6);
572
return PyUnicode_FromStringAndSize("sha384", 6);
575
static PyGetSetDef SHA_getseters[] = {
577
(getter)SHA512_get_block_size, NULL,
581
(getter)SHA512_get_name, NULL,
584
{NULL} /* Sentinel */
587
static PyMemberDef SHA_members[] = {
588
{"digest_size", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL},
589
{NULL} /* Sentinel */
592
static PyTypeObject SHA384type = {
593
PyVarObject_HEAD_INIT(NULL, 0)
594
"_sha512.sha384", /*tp_name*/
595
sizeof(SHAobject), /*tp_size*/
598
SHA512_dealloc, /*tp_dealloc*/
605
0, /*tp_as_sequence*/
613
Py_TPFLAGS_DEFAULT, /*tp_flags*/
617
0, /*tp_richcompare*/
618
0, /*tp_weaklistoffset*/
621
SHA_methods, /* tp_methods */
622
SHA_members, /* tp_members */
623
SHA_getseters, /* tp_getset */
626
static PyTypeObject SHA512type = {
627
PyVarObject_HEAD_INIT(NULL, 0)
628
"_sha512.sha512", /*tp_name*/
629
sizeof(SHAobject), /*tp_size*/
632
SHA512_dealloc, /*tp_dealloc*/
639
0, /*tp_as_sequence*/
647
Py_TPFLAGS_DEFAULT, /*tp_flags*/
651
0, /*tp_richcompare*/
652
0, /*tp_weaklistoffset*/
655
SHA_methods, /* tp_methods */
656
SHA_members, /* tp_members */
657
SHA_getseters, /* tp_getset */
661
/* The single module-level function: new() */
663
PyDoc_STRVAR(SHA512_new__doc__,
664
"Return a new SHA-512 hash object; optionally initialized with a string.");
667
SHA512_new(PyObject *self, PyObject *args, PyObject *kwdict)
669
static char *kwlist[] = {"string", NULL};
671
PyObject *data_obj = NULL;
674
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|O:new", kwlist,
680
GET_BUFFER_VIEW_OR_ERROUT(data_obj, &buf);
682
if ((new = newSHA512object()) == NULL) {
684
PyBuffer_Release(&buf);
690
if (PyErr_Occurred()) {
693
PyBuffer_Release(&buf);
697
sha512_update(new, buf.buf, buf.len);
698
PyBuffer_Release(&buf);
701
return (PyObject *)new;
704
PyDoc_STRVAR(SHA384_new__doc__,
705
"Return a new SHA-384 hash object; optionally initialized with a string.");
708
SHA384_new(PyObject *self, PyObject *args, PyObject *kwdict)
710
static char *kwlist[] = {"string", NULL};
712
PyObject *data_obj = NULL;
715
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|O:new", kwlist,
721
GET_BUFFER_VIEW_OR_ERROUT(data_obj, &buf);
723
if ((new = newSHA384object()) == NULL) {
725
PyBuffer_Release(&buf);
731
if (PyErr_Occurred()) {
734
PyBuffer_Release(&buf);
738
sha512_update(new, buf.buf, buf.len);
739
PyBuffer_Release(&buf);
742
return (PyObject *)new;
746
/* List of functions exported by this module */
748
static struct PyMethodDef SHA_functions[] = {
749
{"sha512", (PyCFunction)SHA512_new, METH_VARARGS|METH_KEYWORDS, SHA512_new__doc__},
750
{"sha384", (PyCFunction)SHA384_new, METH_VARARGS|METH_KEYWORDS, SHA384_new__doc__},
751
{NULL, NULL} /* Sentinel */
755
/* Initialize this module. */
757
#define insint(n,v) { PyModule_AddIntConstant(m,n,v); }
760
static struct PyModuleDef _sha512module = {
761
PyModuleDef_HEAD_INIT,
777
Py_TYPE(&SHA384type) = &PyType_Type;
778
if (PyType_Ready(&SHA384type) < 0)
780
Py_TYPE(&SHA512type) = &PyType_Type;
781
if (PyType_Ready(&SHA512type) < 0)
784
m = PyModule_Create(&_sha512module);
788
Py_INCREF((PyObject *)&SHA384type);
789
PyModule_AddObject(m, "SHA384Type", (PyObject *)&SHA384type);
790
Py_INCREF((PyObject *)&SHA512type);
791
PyModule_AddObject(m, "SHA512Type", (PyObject *)&SHA512type);