Line data Source code
1 : /* SHA512 module */
2 :
3 : /* This module provides an interface to NIST's SHA-512 and SHA-384 Algorithms */
4 :
5 : /* See below for information about the original code this module was
6 : based upon. Additional work performed by:
7 :
8 : Andrew Kuchling (amk@amk.ca)
9 : Greg Stein (gstein@lyra.org)
10 : Trevor Perrin (trevp@trevp.net)
11 :
12 : Copyright (C) 2005-2007 Gregory P. Smith (greg@krypto.org)
13 : Licensed to PSF under a Contributor Agreement.
14 :
15 : */
16 :
17 : /* SHA objects */
18 :
19 : #include "Python.h"
20 : #include "structmember.h"
21 : #include "hashlib.h"
22 :
23 : #ifdef PY_LONG_LONG /* If no PY_LONG_LONG, don't compile anything! */
24 :
25 : /* Endianness testing and definitions */
26 : #define TestEndianness(variable) {int i=1; variable=PCT_BIG_ENDIAN;\
27 : if (*((char*)&i)==1) variable=PCT_LITTLE_ENDIAN;}
28 :
29 : #define PCT_LITTLE_ENDIAN 1
30 : #define PCT_BIG_ENDIAN 0
31 :
32 : /* Some useful types */
33 :
34 : typedef unsigned char SHA_BYTE;
35 :
36 : #if SIZEOF_INT == 4
37 : typedef unsigned int SHA_INT32; /* 32-bit integer */
38 : typedef unsigned PY_LONG_LONG SHA_INT64; /* 64-bit integer */
39 : #else
40 : /* not defined. compilation will die. */
41 : #endif
42 :
43 : /* The SHA block size and message digest sizes, in bytes */
44 :
45 : #define SHA_BLOCKSIZE 128
46 : #define SHA_DIGESTSIZE 64
47 :
48 : /* The structure for storing SHA info */
49 :
50 : typedef struct {
51 : PyObject_HEAD
52 : SHA_INT64 digest[8]; /* Message digest */
53 : SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
54 : SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
55 : int Endianness;
56 : int local; /* unprocessed amount in data */
57 : int digestsize;
58 : } SHAobject;
59 :
60 : /* When run on a little-endian CPU we need to perform byte reversal on an
61 : array of longwords. */
62 :
63 0 : static void longReverse(SHA_INT64 *buffer, int byteCount, int Endianness)
64 : {
65 : SHA_INT64 value;
66 :
67 0 : if ( Endianness == PCT_BIG_ENDIAN )
68 0 : return;
69 :
70 0 : byteCount /= sizeof(*buffer);
71 0 : while (byteCount--) {
72 0 : value = *buffer;
73 :
74 0 : ((unsigned char*)buffer)[0] = (unsigned char)(value >> 56) & 0xff;
75 0 : ((unsigned char*)buffer)[1] = (unsigned char)(value >> 48) & 0xff;
76 0 : ((unsigned char*)buffer)[2] = (unsigned char)(value >> 40) & 0xff;
77 0 : ((unsigned char*)buffer)[3] = (unsigned char)(value >> 32) & 0xff;
78 0 : ((unsigned char*)buffer)[4] = (unsigned char)(value >> 24) & 0xff;
79 0 : ((unsigned char*)buffer)[5] = (unsigned char)(value >> 16) & 0xff;
80 0 : ((unsigned char*)buffer)[6] = (unsigned char)(value >> 8) & 0xff;
81 0 : ((unsigned char*)buffer)[7] = (unsigned char)(value ) & 0xff;
82 :
83 0 : buffer++;
84 : }
85 : }
86 :
87 0 : static void SHAcopy(SHAobject *src, SHAobject *dest)
88 : {
89 0 : dest->Endianness = src->Endianness;
90 0 : dest->local = src->local;
91 0 : dest->digestsize = src->digestsize;
92 0 : dest->count_lo = src->count_lo;
93 0 : dest->count_hi = src->count_hi;
94 0 : memcpy(dest->digest, src->digest, sizeof(src->digest));
95 0 : memcpy(dest->data, src->data, sizeof(src->data));
96 0 : }
97 :
98 :
99 : /* ------------------------------------------------------------------------
100 : *
101 : * This code for the SHA-512 algorithm was noted as public domain. The
102 : * original headers are pasted below.
103 : *
104 : * Several changes have been made to make it more compatible with the
105 : * Python environment and desired interface.
106 : *
107 : */
108 :
109 : /* LibTomCrypt, modular cryptographic library -- Tom St Denis
110 : *
111 : * LibTomCrypt is a library that provides various cryptographic
112 : * algorithms in a highly modular and flexible manner.
113 : *
114 : * The library is free for all purposes without any express
115 : * gurantee it works.
116 : *
117 : * Tom St Denis, tomstdenis@iahu.ca, http://libtom.org
118 : */
119 :
120 :
121 : /* SHA512 by Tom St Denis */
122 :
123 : /* Various logical functions */
124 : #define ROR64(x, y) \
125 : ( ((((x) & Py_ULL(0xFFFFFFFFFFFFFFFF))>>((unsigned PY_LONG_LONG)(y) & 63)) | \
126 : ((x)<<((unsigned PY_LONG_LONG)(64-((y) & 63))))) & Py_ULL(0xFFFFFFFFFFFFFFFF))
127 : #define Ch(x,y,z) (z ^ (x & (y ^ z)))
128 : #define Maj(x,y,z) (((x | y) & z) | (x & y))
129 : #define S(x, n) ROR64((x),(n))
130 : #define R(x, n) (((x) & Py_ULL(0xFFFFFFFFFFFFFFFF)) >> ((unsigned PY_LONG_LONG)n))
131 : #define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
132 : #define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
133 : #define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
134 : #define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
135 :
136 :
137 : static void
138 0 : sha512_transform(SHAobject *sha_info)
139 : {
140 : int i;
141 : SHA_INT64 S[8], W[80], t0, t1;
142 :
143 0 : memcpy(W, sha_info->data, sizeof(sha_info->data));
144 0 : longReverse(W, (int)sizeof(sha_info->data), sha_info->Endianness);
145 :
146 0 : for (i = 16; i < 80; ++i) {
147 0 : W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
148 : }
149 0 : for (i = 0; i < 8; ++i) {
150 0 : S[i] = sha_info->digest[i];
151 : }
152 :
153 : /* Compress */
154 : #define RND(a,b,c,d,e,f,g,h,i,ki) \
155 : t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
156 : t1 = Sigma0(a) + Maj(a, b, c); \
157 : d += t0; \
158 : h = t0 + t1;
159 :
160 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,Py_ULL(0x428a2f98d728ae22));
161 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,Py_ULL(0x7137449123ef65cd));
162 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,Py_ULL(0xb5c0fbcfec4d3b2f));
163 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,Py_ULL(0xe9b5dba58189dbbc));
164 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,Py_ULL(0x3956c25bf348b538));
165 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,Py_ULL(0x59f111f1b605d019));
166 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,Py_ULL(0x923f82a4af194f9b));
167 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,Py_ULL(0xab1c5ed5da6d8118));
168 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,Py_ULL(0xd807aa98a3030242));
169 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,Py_ULL(0x12835b0145706fbe));
170 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,Py_ULL(0x243185be4ee4b28c));
171 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,Py_ULL(0x550c7dc3d5ffb4e2));
172 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,Py_ULL(0x72be5d74f27b896f));
173 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,Py_ULL(0x80deb1fe3b1696b1));
174 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,Py_ULL(0x9bdc06a725c71235));
175 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,Py_ULL(0xc19bf174cf692694));
176 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,Py_ULL(0xe49b69c19ef14ad2));
177 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,Py_ULL(0xefbe4786384f25e3));
178 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,Py_ULL(0x0fc19dc68b8cd5b5));
179 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,Py_ULL(0x240ca1cc77ac9c65));
180 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,Py_ULL(0x2de92c6f592b0275));
181 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,Py_ULL(0x4a7484aa6ea6e483));
182 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,Py_ULL(0x5cb0a9dcbd41fbd4));
183 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,Py_ULL(0x76f988da831153b5));
184 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,Py_ULL(0x983e5152ee66dfab));
185 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,Py_ULL(0xa831c66d2db43210));
186 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,Py_ULL(0xb00327c898fb213f));
187 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,Py_ULL(0xbf597fc7beef0ee4));
188 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,Py_ULL(0xc6e00bf33da88fc2));
189 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,Py_ULL(0xd5a79147930aa725));
190 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,Py_ULL(0x06ca6351e003826f));
191 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,Py_ULL(0x142929670a0e6e70));
192 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,Py_ULL(0x27b70a8546d22ffc));
193 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,Py_ULL(0x2e1b21385c26c926));
194 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,Py_ULL(0x4d2c6dfc5ac42aed));
195 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,Py_ULL(0x53380d139d95b3df));
196 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,Py_ULL(0x650a73548baf63de));
197 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,Py_ULL(0x766a0abb3c77b2a8));
198 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,Py_ULL(0x81c2c92e47edaee6));
199 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,Py_ULL(0x92722c851482353b));
200 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,Py_ULL(0xa2bfe8a14cf10364));
201 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,Py_ULL(0xa81a664bbc423001));
202 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,Py_ULL(0xc24b8b70d0f89791));
203 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,Py_ULL(0xc76c51a30654be30));
204 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,Py_ULL(0xd192e819d6ef5218));
205 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,Py_ULL(0xd69906245565a910));
206 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,Py_ULL(0xf40e35855771202a));
207 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,Py_ULL(0x106aa07032bbd1b8));
208 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,Py_ULL(0x19a4c116b8d2d0c8));
209 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,Py_ULL(0x1e376c085141ab53));
210 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,Py_ULL(0x2748774cdf8eeb99));
211 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,Py_ULL(0x34b0bcb5e19b48a8));
212 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,Py_ULL(0x391c0cb3c5c95a63));
213 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,Py_ULL(0x4ed8aa4ae3418acb));
214 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,Py_ULL(0x5b9cca4f7763e373));
215 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,Py_ULL(0x682e6ff3d6b2b8a3));
216 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,Py_ULL(0x748f82ee5defb2fc));
217 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,Py_ULL(0x78a5636f43172f60));
218 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,Py_ULL(0x84c87814a1f0ab72));
219 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,Py_ULL(0x8cc702081a6439ec));
220 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,Py_ULL(0x90befffa23631e28));
221 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,Py_ULL(0xa4506cebde82bde9));
222 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,Py_ULL(0xbef9a3f7b2c67915));
223 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,Py_ULL(0xc67178f2e372532b));
224 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,Py_ULL(0xca273eceea26619c));
225 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,Py_ULL(0xd186b8c721c0c207));
226 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,Py_ULL(0xeada7dd6cde0eb1e));
227 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,Py_ULL(0xf57d4f7fee6ed178));
228 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,Py_ULL(0x06f067aa72176fba));
229 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,Py_ULL(0x0a637dc5a2c898a6));
230 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,Py_ULL(0x113f9804bef90dae));
231 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,Py_ULL(0x1b710b35131c471b));
232 0 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,Py_ULL(0x28db77f523047d84));
233 0 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,Py_ULL(0x32caab7b40c72493));
234 0 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,Py_ULL(0x3c9ebe0a15c9bebc));
235 0 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,Py_ULL(0x431d67c49c100d4c));
236 0 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,Py_ULL(0x4cc5d4becb3e42b6));
237 0 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,Py_ULL(0x597f299cfc657e2a));
238 0 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,Py_ULL(0x5fcb6fab3ad6faec));
239 0 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,Py_ULL(0x6c44198c4a475817));
240 :
241 : #undef RND
242 :
243 : /* feedback */
244 0 : for (i = 0; i < 8; i++) {
245 0 : sha_info->digest[i] = sha_info->digest[i] + S[i];
246 : }
247 :
248 0 : }
249 :
250 :
251 :
252 : /* initialize the SHA digest */
253 :
254 : static void
255 0 : sha512_init(SHAobject *sha_info)
256 : {
257 0 : TestEndianness(sha_info->Endianness)
258 0 : sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908);
259 0 : sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b);
260 0 : sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b);
261 0 : sha_info->digest[3] = Py_ULL(0xa54ff53a5f1d36f1);
262 0 : sha_info->digest[4] = Py_ULL(0x510e527fade682d1);
263 0 : sha_info->digest[5] = Py_ULL(0x9b05688c2b3e6c1f);
264 0 : sha_info->digest[6] = Py_ULL(0x1f83d9abfb41bd6b);
265 0 : sha_info->digest[7] = Py_ULL(0x5be0cd19137e2179);
266 0 : sha_info->count_lo = 0L;
267 0 : sha_info->count_hi = 0L;
268 0 : sha_info->local = 0;
269 0 : sha_info->digestsize = 64;
270 0 : }
271 :
272 : static void
273 0 : sha384_init(SHAobject *sha_info)
274 : {
275 0 : TestEndianness(sha_info->Endianness)
276 0 : sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8);
277 0 : sha_info->digest[1] = Py_ULL(0x629a292a367cd507);
278 0 : sha_info->digest[2] = Py_ULL(0x9159015a3070dd17);
279 0 : sha_info->digest[3] = Py_ULL(0x152fecd8f70e5939);
280 0 : sha_info->digest[4] = Py_ULL(0x67332667ffc00b31);
281 0 : sha_info->digest[5] = Py_ULL(0x8eb44a8768581511);
282 0 : sha_info->digest[6] = Py_ULL(0xdb0c2e0d64f98fa7);
283 0 : sha_info->digest[7] = Py_ULL(0x47b5481dbefa4fa4);
284 0 : sha_info->count_lo = 0L;
285 0 : sha_info->count_hi = 0L;
286 0 : sha_info->local = 0;
287 0 : sha_info->digestsize = 48;
288 0 : }
289 :
290 :
291 : /* update the SHA digest */
292 :
293 : static void
294 0 : sha512_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count)
295 : {
296 : Py_ssize_t i;
297 : SHA_INT32 clo;
298 :
299 0 : clo = sha_info->count_lo + ((SHA_INT32) count << 3);
300 0 : if (clo < sha_info->count_lo) {
301 0 : ++sha_info->count_hi;
302 : }
303 0 : sha_info->count_lo = clo;
304 0 : sha_info->count_hi += (SHA_INT32) count >> 29;
305 0 : if (sha_info->local) {
306 0 : i = SHA_BLOCKSIZE - sha_info->local;
307 0 : if (i > count) {
308 0 : i = count;
309 : }
310 0 : memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i);
311 0 : count -= i;
312 0 : buffer += i;
313 0 : sha_info->local += i;
314 0 : if (sha_info->local == SHA_BLOCKSIZE) {
315 0 : sha512_transform(sha_info);
316 : }
317 : else {
318 0 : return;
319 : }
320 : }
321 0 : while (count >= SHA_BLOCKSIZE) {
322 0 : memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
323 0 : buffer += SHA_BLOCKSIZE;
324 0 : count -= SHA_BLOCKSIZE;
325 0 : sha512_transform(sha_info);
326 : }
327 0 : memcpy(sha_info->data, buffer, count);
328 0 : sha_info->local = count;
329 : }
330 :
331 : /* finish computing the SHA digest */
332 :
333 : static void
334 0 : sha512_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
335 : {
336 : int count;
337 : SHA_INT32 lo_bit_count, hi_bit_count;
338 :
339 0 : lo_bit_count = sha_info->count_lo;
340 0 : hi_bit_count = sha_info->count_hi;
341 0 : count = (int) ((lo_bit_count >> 3) & 0x7f);
342 0 : ((SHA_BYTE *) sha_info->data)[count++] = 0x80;
343 0 : if (count > SHA_BLOCKSIZE - 16) {
344 0 : memset(((SHA_BYTE *) sha_info->data) + count, 0,
345 0 : SHA_BLOCKSIZE - count);
346 0 : sha512_transform(sha_info);
347 0 : memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 16);
348 : }
349 : else {
350 0 : memset(((SHA_BYTE *) sha_info->data) + count, 0,
351 0 : SHA_BLOCKSIZE - 16 - count);
352 : }
353 :
354 : /* GJS: note that we add the hi/lo in big-endian. sha512_transform will
355 : swap these values into host-order. */
356 0 : sha_info->data[112] = 0;
357 0 : sha_info->data[113] = 0;
358 0 : sha_info->data[114] = 0;
359 0 : sha_info->data[115] = 0;
360 0 : sha_info->data[116] = 0;
361 0 : sha_info->data[117] = 0;
362 0 : sha_info->data[118] = 0;
363 0 : sha_info->data[119] = 0;
364 0 : sha_info->data[120] = (hi_bit_count >> 24) & 0xff;
365 0 : sha_info->data[121] = (hi_bit_count >> 16) & 0xff;
366 0 : sha_info->data[122] = (hi_bit_count >> 8) & 0xff;
367 0 : sha_info->data[123] = (hi_bit_count >> 0) & 0xff;
368 0 : sha_info->data[124] = (lo_bit_count >> 24) & 0xff;
369 0 : sha_info->data[125] = (lo_bit_count >> 16) & 0xff;
370 0 : sha_info->data[126] = (lo_bit_count >> 8) & 0xff;
371 0 : sha_info->data[127] = (lo_bit_count >> 0) & 0xff;
372 0 : sha512_transform(sha_info);
373 0 : digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 56) & 0xff);
374 0 : digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 48) & 0xff);
375 0 : digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 40) & 0xff);
376 0 : digest[ 3] = (unsigned char) ((sha_info->digest[0] >> 32) & 0xff);
377 0 : digest[ 4] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff);
378 0 : digest[ 5] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff);
379 0 : digest[ 6] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff);
380 0 : digest[ 7] = (unsigned char) ((sha_info->digest[0] ) & 0xff);
381 0 : digest[ 8] = (unsigned char) ((sha_info->digest[1] >> 56) & 0xff);
382 0 : digest[ 9] = (unsigned char) ((sha_info->digest[1] >> 48) & 0xff);
383 0 : digest[10] = (unsigned char) ((sha_info->digest[1] >> 40) & 0xff);
384 0 : digest[11] = (unsigned char) ((sha_info->digest[1] >> 32) & 0xff);
385 0 : digest[12] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff);
386 0 : digest[13] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff);
387 0 : digest[14] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff);
388 0 : digest[15] = (unsigned char) ((sha_info->digest[1] ) & 0xff);
389 0 : digest[16] = (unsigned char) ((sha_info->digest[2] >> 56) & 0xff);
390 0 : digest[17] = (unsigned char) ((sha_info->digest[2] >> 48) & 0xff);
391 0 : digest[18] = (unsigned char) ((sha_info->digest[2] >> 40) & 0xff);
392 0 : digest[19] = (unsigned char) ((sha_info->digest[2] >> 32) & 0xff);
393 0 : digest[20] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff);
394 0 : digest[21] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff);
395 0 : digest[22] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff);
396 0 : digest[23] = (unsigned char) ((sha_info->digest[2] ) & 0xff);
397 0 : digest[24] = (unsigned char) ((sha_info->digest[3] >> 56) & 0xff);
398 0 : digest[25] = (unsigned char) ((sha_info->digest[3] >> 48) & 0xff);
399 0 : digest[26] = (unsigned char) ((sha_info->digest[3] >> 40) & 0xff);
400 0 : digest[27] = (unsigned char) ((sha_info->digest[3] >> 32) & 0xff);
401 0 : digest[28] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff);
402 0 : digest[29] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff);
403 0 : digest[30] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff);
404 0 : digest[31] = (unsigned char) ((sha_info->digest[3] ) & 0xff);
405 0 : digest[32] = (unsigned char) ((sha_info->digest[4] >> 56) & 0xff);
406 0 : digest[33] = (unsigned char) ((sha_info->digest[4] >> 48) & 0xff);
407 0 : digest[34] = (unsigned char) ((sha_info->digest[4] >> 40) & 0xff);
408 0 : digest[35] = (unsigned char) ((sha_info->digest[4] >> 32) & 0xff);
409 0 : digest[36] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff);
410 0 : digest[37] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff);
411 0 : digest[38] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff);
412 0 : digest[39] = (unsigned char) ((sha_info->digest[4] ) & 0xff);
413 0 : digest[40] = (unsigned char) ((sha_info->digest[5] >> 56) & 0xff);
414 0 : digest[41] = (unsigned char) ((sha_info->digest[5] >> 48) & 0xff);
415 0 : digest[42] = (unsigned char) ((sha_info->digest[5] >> 40) & 0xff);
416 0 : digest[43] = (unsigned char) ((sha_info->digest[5] >> 32) & 0xff);
417 0 : digest[44] = (unsigned char) ((sha_info->digest[5] >> 24) & 0xff);
418 0 : digest[45] = (unsigned char) ((sha_info->digest[5] >> 16) & 0xff);
419 0 : digest[46] = (unsigned char) ((sha_info->digest[5] >> 8) & 0xff);
420 0 : digest[47] = (unsigned char) ((sha_info->digest[5] ) & 0xff);
421 0 : digest[48] = (unsigned char) ((sha_info->digest[6] >> 56) & 0xff);
422 0 : digest[49] = (unsigned char) ((sha_info->digest[6] >> 48) & 0xff);
423 0 : digest[50] = (unsigned char) ((sha_info->digest[6] >> 40) & 0xff);
424 0 : digest[51] = (unsigned char) ((sha_info->digest[6] >> 32) & 0xff);
425 0 : digest[52] = (unsigned char) ((sha_info->digest[6] >> 24) & 0xff);
426 0 : digest[53] = (unsigned char) ((sha_info->digest[6] >> 16) & 0xff);
427 0 : digest[54] = (unsigned char) ((sha_info->digest[6] >> 8) & 0xff);
428 0 : digest[55] = (unsigned char) ((sha_info->digest[6] ) & 0xff);
429 0 : digest[56] = (unsigned char) ((sha_info->digest[7] >> 56) & 0xff);
430 0 : digest[57] = (unsigned char) ((sha_info->digest[7] >> 48) & 0xff);
431 0 : digest[58] = (unsigned char) ((sha_info->digest[7] >> 40) & 0xff);
432 0 : digest[59] = (unsigned char) ((sha_info->digest[7] >> 32) & 0xff);
433 0 : digest[60] = (unsigned char) ((sha_info->digest[7] >> 24) & 0xff);
434 0 : digest[61] = (unsigned char) ((sha_info->digest[7] >> 16) & 0xff);
435 0 : digest[62] = (unsigned char) ((sha_info->digest[7] >> 8) & 0xff);
436 0 : digest[63] = (unsigned char) ((sha_info->digest[7] ) & 0xff);
437 0 : }
438 :
439 : /*
440 : * End of copied SHA code.
441 : *
442 : * ------------------------------------------------------------------------
443 : */
444 :
445 : static PyTypeObject SHA384type;
446 : static PyTypeObject SHA512type;
447 :
448 :
449 : static SHAobject *
450 0 : newSHA384object(void)
451 : {
452 0 : return (SHAobject *)PyObject_New(SHAobject, &SHA384type);
453 : }
454 :
455 : static SHAobject *
456 0 : newSHA512object(void)
457 : {
458 0 : return (SHAobject *)PyObject_New(SHAobject, &SHA512type);
459 : }
460 :
461 : /* Internal methods for a hash object */
462 :
463 : static void
464 0 : SHA512_dealloc(PyObject *ptr)
465 : {
466 0 : PyObject_Del(ptr);
467 0 : }
468 :
469 :
470 : /* External methods for a hash object */
471 :
472 : PyDoc_STRVAR(SHA512_copy__doc__, "Return a copy of the hash object.");
473 :
474 : static PyObject *
475 0 : SHA512_copy(SHAobject *self, PyObject *unused)
476 : {
477 : SHAobject *newobj;
478 :
479 0 : if (((PyObject*)self)->ob_type == &SHA512type) {
480 0 : if ( (newobj = newSHA512object())==NULL)
481 0 : return NULL;
482 : } else {
483 0 : if ( (newobj = newSHA384object())==NULL)
484 0 : return NULL;
485 : }
486 :
487 0 : SHAcopy(self, newobj);
488 0 : return (PyObject *)newobj;
489 : }
490 :
491 : PyDoc_STRVAR(SHA512_digest__doc__,
492 : "Return the digest value as a string of binary data.");
493 :
494 : static PyObject *
495 0 : SHA512_digest(SHAobject *self, PyObject *unused)
496 : {
497 : unsigned char digest[SHA_DIGESTSIZE];
498 : SHAobject temp;
499 :
500 0 : SHAcopy(self, &temp);
501 0 : sha512_final(digest, &temp);
502 0 : return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);
503 : }
504 :
505 : PyDoc_STRVAR(SHA512_hexdigest__doc__,
506 : "Return the digest value as a string of hexadecimal digits.");
507 :
508 : static PyObject *
509 0 : SHA512_hexdigest(SHAobject *self, PyObject *unused)
510 : {
511 : unsigned char digest[SHA_DIGESTSIZE];
512 : SHAobject temp;
513 : PyObject *retval;
514 : Py_UCS1 *hex_digest;
515 : int i, j;
516 :
517 : /* Get the raw (binary) digest value */
518 0 : SHAcopy(self, &temp);
519 0 : sha512_final(digest, &temp);
520 :
521 : /* Create a new string */
522 0 : retval = PyUnicode_New(self->digestsize * 2, 127);
523 0 : if (!retval)
524 0 : return NULL;
525 0 : hex_digest = PyUnicode_1BYTE_DATA(retval);
526 :
527 : /* Make hex version of the digest */
528 0 : for (i=j=0; i<self->digestsize; i++) {
529 : unsigned char c;
530 0 : c = (digest[i] >> 4) & 0xf;
531 0 : hex_digest[j++] = Py_hexdigits[c];
532 0 : c = (digest[i] & 0xf);
533 0 : hex_digest[j++] = Py_hexdigits[c];
534 : }
535 : assert(_PyUnicode_CheckConsistency(retval, 1));
536 0 : return retval;
537 : }
538 :
539 : PyDoc_STRVAR(SHA512_update__doc__,
540 : "Update this hash object's state with the provided string.");
541 :
542 : static PyObject *
543 0 : SHA512_update(SHAobject *self, PyObject *args)
544 : {
545 : PyObject *obj;
546 : Py_buffer buf;
547 :
548 0 : if (!PyArg_ParseTuple(args, "O:update", &obj))
549 0 : return NULL;
550 :
551 0 : GET_BUFFER_VIEW_OR_ERROUT(obj, &buf);
552 :
553 0 : sha512_update(self, buf.buf, buf.len);
554 :
555 0 : PyBuffer_Release(&buf);
556 0 : Py_INCREF(Py_None);
557 0 : return Py_None;
558 : }
559 :
560 : static PyMethodDef SHA_methods[] = {
561 : {"copy", (PyCFunction)SHA512_copy, METH_NOARGS, SHA512_copy__doc__},
562 : {"digest", (PyCFunction)SHA512_digest, METH_NOARGS, SHA512_digest__doc__},
563 : {"hexdigest", (PyCFunction)SHA512_hexdigest, METH_NOARGS, SHA512_hexdigest__doc__},
564 : {"update", (PyCFunction)SHA512_update, METH_VARARGS, SHA512_update__doc__},
565 : {NULL, NULL} /* sentinel */
566 : };
567 :
568 : static PyObject *
569 0 : SHA512_get_block_size(PyObject *self, void *closure)
570 : {
571 0 : return PyLong_FromLong(SHA_BLOCKSIZE);
572 : }
573 :
574 : static PyObject *
575 0 : SHA512_get_name(PyObject *self, void *closure)
576 : {
577 0 : if (((SHAobject *)self)->digestsize == 64)
578 0 : return PyUnicode_FromStringAndSize("SHA512", 6);
579 : else
580 0 : return PyUnicode_FromStringAndSize("SHA384", 6);
581 : }
582 :
583 : static PyGetSetDef SHA_getseters[] = {
584 : {"block_size",
585 : (getter)SHA512_get_block_size, NULL,
586 : NULL,
587 : NULL},
588 : {"name",
589 : (getter)SHA512_get_name, NULL,
590 : NULL,
591 : NULL},
592 : {NULL} /* Sentinel */
593 : };
594 :
595 : static PyMemberDef SHA_members[] = {
596 : {"digest_size", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL},
597 : {NULL} /* Sentinel */
598 : };
599 :
600 : static PyTypeObject SHA384type = {
601 : PyVarObject_HEAD_INIT(NULL, 0)
602 : "_sha512.sha384", /*tp_name*/
603 : sizeof(SHAobject), /*tp_size*/
604 : 0, /*tp_itemsize*/
605 : /* methods */
606 : SHA512_dealloc, /*tp_dealloc*/
607 : 0, /*tp_print*/
608 : 0, /*tp_getattr*/
609 : 0, /*tp_setattr*/
610 : 0, /*tp_reserved*/
611 : 0, /*tp_repr*/
612 : 0, /*tp_as_number*/
613 : 0, /*tp_as_sequence*/
614 : 0, /*tp_as_mapping*/
615 : 0, /*tp_hash*/
616 : 0, /*tp_call*/
617 : 0, /*tp_str*/
618 : 0, /*tp_getattro*/
619 : 0, /*tp_setattro*/
620 : 0, /*tp_as_buffer*/
621 : Py_TPFLAGS_DEFAULT, /*tp_flags*/
622 : 0, /*tp_doc*/
623 : 0, /*tp_traverse*/
624 : 0, /*tp_clear*/
625 : 0, /*tp_richcompare*/
626 : 0, /*tp_weaklistoffset*/
627 : 0, /*tp_iter*/
628 : 0, /*tp_iternext*/
629 : SHA_methods, /* tp_methods */
630 : SHA_members, /* tp_members */
631 : SHA_getseters, /* tp_getset */
632 : };
633 :
634 : static PyTypeObject SHA512type = {
635 : PyVarObject_HEAD_INIT(NULL, 0)
636 : "_sha512.sha512", /*tp_name*/
637 : sizeof(SHAobject), /*tp_size*/
638 : 0, /*tp_itemsize*/
639 : /* methods */
640 : SHA512_dealloc, /*tp_dealloc*/
641 : 0, /*tp_print*/
642 : 0, /*tp_getattr*/
643 : 0, /*tp_setattr*/
644 : 0, /*tp_reserved*/
645 : 0, /*tp_repr*/
646 : 0, /*tp_as_number*/
647 : 0, /*tp_as_sequence*/
648 : 0, /*tp_as_mapping*/
649 : 0, /*tp_hash*/
650 : 0, /*tp_call*/
651 : 0, /*tp_str*/
652 : 0, /*tp_getattro*/
653 : 0, /*tp_setattro*/
654 : 0, /*tp_as_buffer*/
655 : Py_TPFLAGS_DEFAULT, /*tp_flags*/
656 : 0, /*tp_doc*/
657 : 0, /*tp_traverse*/
658 : 0, /*tp_clear*/
659 : 0, /*tp_richcompare*/
660 : 0, /*tp_weaklistoffset*/
661 : 0, /*tp_iter*/
662 : 0, /*tp_iternext*/
663 : SHA_methods, /* tp_methods */
664 : SHA_members, /* tp_members */
665 : SHA_getseters, /* tp_getset */
666 : };
667 :
668 :
669 : /* The single module-level function: new() */
670 :
671 : PyDoc_STRVAR(SHA512_new__doc__,
672 : "Return a new SHA-512 hash object; optionally initialized with a string.");
673 :
674 : static PyObject *
675 0 : SHA512_new(PyObject *self, PyObject *args, PyObject *kwdict)
676 : {
677 : static char *kwlist[] = {"string", NULL};
678 : SHAobject *new;
679 0 : PyObject *data_obj = NULL;
680 : Py_buffer buf;
681 :
682 0 : if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|O:new", kwlist,
683 : &data_obj)) {
684 0 : return NULL;
685 : }
686 :
687 0 : if (data_obj)
688 0 : GET_BUFFER_VIEW_OR_ERROUT(data_obj, &buf);
689 :
690 0 : if ((new = newSHA512object()) == NULL) {
691 0 : if (data_obj)
692 0 : PyBuffer_Release(&buf);
693 0 : return NULL;
694 : }
695 :
696 0 : sha512_init(new);
697 :
698 0 : if (PyErr_Occurred()) {
699 0 : Py_DECREF(new);
700 0 : if (data_obj)
701 0 : PyBuffer_Release(&buf);
702 0 : return NULL;
703 : }
704 0 : if (data_obj) {
705 0 : sha512_update(new, buf.buf, buf.len);
706 0 : PyBuffer_Release(&buf);
707 : }
708 :
709 0 : return (PyObject *)new;
710 : }
711 :
712 : PyDoc_STRVAR(SHA384_new__doc__,
713 : "Return a new SHA-384 hash object; optionally initialized with a string.");
714 :
715 : static PyObject *
716 0 : SHA384_new(PyObject *self, PyObject *args, PyObject *kwdict)
717 : {
718 : static char *kwlist[] = {"string", NULL};
719 : SHAobject *new;
720 0 : PyObject *data_obj = NULL;
721 : Py_buffer buf;
722 :
723 0 : if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|O:new", kwlist,
724 : &data_obj)) {
725 0 : return NULL;
726 : }
727 :
728 0 : if (data_obj)
729 0 : GET_BUFFER_VIEW_OR_ERROUT(data_obj, &buf);
730 :
731 0 : if ((new = newSHA384object()) == NULL) {
732 0 : if (data_obj)
733 0 : PyBuffer_Release(&buf);
734 0 : return NULL;
735 : }
736 :
737 0 : sha384_init(new);
738 :
739 0 : if (PyErr_Occurred()) {
740 0 : Py_DECREF(new);
741 0 : if (data_obj)
742 0 : PyBuffer_Release(&buf);
743 0 : return NULL;
744 : }
745 0 : if (data_obj) {
746 0 : sha512_update(new, buf.buf, buf.len);
747 0 : PyBuffer_Release(&buf);
748 : }
749 :
750 0 : return (PyObject *)new;
751 : }
752 :
753 :
754 : /* List of functions exported by this module */
755 :
756 : static struct PyMethodDef SHA_functions[] = {
757 : {"sha512", (PyCFunction)SHA512_new, METH_VARARGS|METH_KEYWORDS, SHA512_new__doc__},
758 : {"sha384", (PyCFunction)SHA384_new, METH_VARARGS|METH_KEYWORDS, SHA384_new__doc__},
759 : {NULL, NULL} /* Sentinel */
760 : };
761 :
762 :
763 : /* Initialize this module. */
764 :
765 : #define insint(n,v) { PyModule_AddIntConstant(m,n,v); }
766 :
767 :
768 : static struct PyModuleDef _sha512module = {
769 : PyModuleDef_HEAD_INIT,
770 : "_sha512",
771 : NULL,
772 : -1,
773 : SHA_functions,
774 : NULL,
775 : NULL,
776 : NULL,
777 : NULL
778 : };
779 :
780 : PyMODINIT_FUNC
781 0 : PyInit__sha512(void)
782 : {
783 0 : Py_TYPE(&SHA384type) = &PyType_Type;
784 0 : if (PyType_Ready(&SHA384type) < 0)
785 0 : return NULL;
786 0 : Py_TYPE(&SHA512type) = &PyType_Type;
787 0 : if (PyType_Ready(&SHA512type) < 0)
788 0 : return NULL;
789 0 : return PyModule_Create(&_sha512module);
790 : }
791 :
792 : #endif
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