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 : #ifndef Py_BUILD_CORE_BUILTIN
19 : # define Py_BUILD_CORE_MODULE 1
20 : #endif
21 :
22 : #include "Python.h"
23 : #include "pycore_bitutils.h" // _Py_bswap64()
24 : #include "pycore_strhex.h" // _Py_strhex()
25 : #include "structmember.h" // PyMemberDef
26 : #include "hashlib.h"
27 :
28 : /*[clinic input]
29 : module _sha512
30 : class SHA512Type "SHAobject *" "&PyType_Type"
31 : [clinic start generated code]*/
32 : /*[clinic end generated code: output=da39a3ee5e6b4b0d input=81a3ccde92bcfe8d]*/
33 :
34 : /* Some useful types */
35 :
36 : typedef unsigned char SHA_BYTE;
37 : typedef uint32_t SHA_INT32; /* 32-bit integer */
38 : typedef uint64_t SHA_INT64; /* 64-bit integer */
39 :
40 : /* The SHA block size and message digest sizes, in bytes */
41 :
42 : #define SHA_BLOCKSIZE 128
43 : #define SHA_DIGESTSIZE 64
44 :
45 : /* The structure for storing SHA info */
46 :
47 : typedef struct {
48 : PyObject_HEAD
49 : SHA_INT64 digest[8]; /* Message digest */
50 : SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
51 : SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
52 : int local; /* unprocessed amount in data */
53 : int digestsize;
54 : } SHAobject;
55 :
56 : #include "clinic/sha512module.c.h"
57 :
58 : /* When run on a little-endian CPU we need to perform byte reversal on an
59 : array of longwords. */
60 :
61 : #if PY_LITTLE_ENDIAN
62 47176 : static void longReverse(SHA_INT64 *buffer, int byteCount)
63 : {
64 47176 : byteCount /= sizeof(*buffer);
65 801992 : for (; byteCount--; buffer++) {
66 754816 : *buffer = _Py_bswap64(*buffer);
67 : }
68 47176 : }
69 : #endif
70 :
71 74 : static void SHAcopy(SHAobject *src, SHAobject *dest)
72 : {
73 74 : dest->local = src->local;
74 74 : dest->digestsize = src->digestsize;
75 74 : dest->count_lo = src->count_lo;
76 74 : dest->count_hi = src->count_hi;
77 74 : memcpy(dest->digest, src->digest, sizeof(src->digest));
78 74 : memcpy(dest->data, src->data, sizeof(src->data));
79 74 : }
80 :
81 :
82 : /* ------------------------------------------------------------------------
83 : *
84 : * This code for the SHA-512 algorithm was noted as public domain. The
85 : * original headers are pasted below.
86 : *
87 : * Several changes have been made to make it more compatible with the
88 : * Python environment and desired interface.
89 : *
90 : */
91 :
92 : /* LibTomCrypt, modular cryptographic library -- Tom St Denis
93 : *
94 : * LibTomCrypt is a library that provides various cryptographic
95 : * algorithms in a highly modular and flexible manner.
96 : *
97 : * The library is free for all purposes without any express
98 : * guarantee it works.
99 : *
100 : * Tom St Denis, tomstdenis@iahu.ca, https://www.libtom.net
101 : */
102 :
103 :
104 : /* SHA512 by Tom St Denis */
105 :
106 : /* Various logical functions */
107 : #define ROR64(x, y) \
108 : ( ((((x) & 0xFFFFFFFFFFFFFFFFULL)>>((unsigned long long)(y) & 63)) | \
109 : ((x)<<((unsigned long long)(64-((y) & 63))))) & 0xFFFFFFFFFFFFFFFFULL)
110 : #define Ch(x,y,z) (z ^ (x & (y ^ z)))
111 : #define Maj(x,y,z) (((x | y) & z) | (x & y))
112 : #define S(x, n) ROR64((x),(n))
113 : #define R(x, n) (((x) & 0xFFFFFFFFFFFFFFFFULL) >> ((unsigned long long)n))
114 : #define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
115 : #define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
116 : #define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
117 : #define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
118 :
119 :
120 : static void
121 47176 : sha512_transform(SHAobject *sha_info)
122 : {
123 : int i;
124 : SHA_INT64 S[8], W[80], t0, t1;
125 :
126 47176 : memcpy(W, sha_info->data, sizeof(sha_info->data));
127 : #if PY_LITTLE_ENDIAN
128 47176 : longReverse(W, (int)sizeof(sha_info->data));
129 : #endif
130 :
131 3066440 : for (i = 16; i < 80; ++i) {
132 3019260 : W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
133 : }
134 424584 : for (i = 0; i < 8; ++i) {
135 377408 : S[i] = sha_info->digest[i];
136 : }
137 :
138 : /* Compress */
139 : #define RND(a,b,c,d,e,f,g,h,i,ki) \
140 : t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
141 : t1 = Sigma0(a) + Maj(a, b, c); \
142 : d += t0; \
143 : h = t0 + t1;
144 :
145 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98d728ae22ULL);
146 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x7137449123ef65cdULL);
147 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcfec4d3b2fULL);
148 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba58189dbbcULL);
149 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25bf348b538ULL);
150 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1b605d019ULL);
151 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4af194f9bULL);
152 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5da6d8118ULL);
153 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98a3030242ULL);
154 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b0145706fbeULL);
155 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be4ee4b28cULL);
156 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3d5ffb4e2ULL);
157 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74f27b896fULL);
158 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe3b1696b1ULL);
159 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a725c71235ULL);
160 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174cf692694ULL);
161 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c19ef14ad2ULL);
162 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786384f25e3ULL);
163 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc68b8cd5b5ULL);
164 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc77ac9c65ULL);
165 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f592b0275ULL);
166 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa6ea6e483ULL);
167 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dcbd41fbd4ULL);
168 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da831153b5ULL);
169 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152ee66dfabULL);
170 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d2db43210ULL);
171 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c898fb213fULL);
172 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7beef0ee4ULL);
173 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf33da88fc2ULL);
174 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147930aa725ULL);
175 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351e003826fULL);
176 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x142929670a0e6e70ULL);
177 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a8546d22ffcULL);
178 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b21385c26c926ULL);
179 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc5ac42aedULL);
180 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d139d95b3dfULL);
181 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a73548baf63deULL);
182 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb3c77b2a8ULL);
183 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e47edaee6ULL);
184 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c851482353bULL);
185 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a14cf10364ULL);
186 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664bbc423001ULL);
187 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70d0f89791ULL);
188 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a30654be30ULL);
189 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819d6ef5218ULL);
190 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd69906245565a910ULL);
191 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e35855771202aULL);
192 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa07032bbd1b8ULL);
193 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116b8d2d0c8ULL);
194 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c085141ab53ULL);
195 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774cdf8eeb99ULL);
196 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5e19b48a8ULL);
197 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3c5c95a63ULL);
198 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4ae3418acbULL);
199 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f7763e373ULL);
200 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3d6b2b8a3ULL);
201 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee5defb2fcULL);
202 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f43172f60ULL);
203 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814a1f0ab72ULL);
204 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc702081a6439ecULL);
205 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa23631e28ULL);
206 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506cebde82bde9ULL);
207 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7b2c67915ULL);
208 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2e372532bULL);
209 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,0xca273eceea26619cULL);
210 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,0xd186b8c721c0c207ULL);
211 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,0xeada7dd6cde0eb1eULL);
212 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,0xf57d4f7fee6ed178ULL);
213 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,0x06f067aa72176fbaULL);
214 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,0x0a637dc5a2c898a6ULL);
215 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,0x113f9804bef90daeULL);
216 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,0x1b710b35131c471bULL);
217 47176 : RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,0x28db77f523047d84ULL);
218 47176 : RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,0x32caab7b40c72493ULL);
219 47176 : RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,0x3c9ebe0a15c9bebcULL);
220 47176 : RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,0x431d67c49c100d4cULL);
221 47176 : RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,0x4cc5d4becb3e42b6ULL);
222 47176 : RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,0x597f299cfc657e2aULL);
223 47176 : RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,0x5fcb6fab3ad6faecULL);
224 47176 : RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,0x6c44198c4a475817ULL);
225 :
226 : #undef RND
227 :
228 : /* feedback */
229 424584 : for (i = 0; i < 8; i++) {
230 377408 : sha_info->digest[i] = sha_info->digest[i] + S[i];
231 : }
232 :
233 47176 : }
234 :
235 :
236 :
237 : /* initialize the SHA digest */
238 :
239 : static void
240 41 : sha512_init(SHAobject *sha_info)
241 : {
242 41 : sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908);
243 41 : sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b);
244 41 : sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b);
245 41 : sha_info->digest[3] = Py_ULL(0xa54ff53a5f1d36f1);
246 41 : sha_info->digest[4] = Py_ULL(0x510e527fade682d1);
247 41 : sha_info->digest[5] = Py_ULL(0x9b05688c2b3e6c1f);
248 41 : sha_info->digest[6] = Py_ULL(0x1f83d9abfb41bd6b);
249 41 : sha_info->digest[7] = Py_ULL(0x5be0cd19137e2179);
250 41 : sha_info->count_lo = 0L;
251 41 : sha_info->count_hi = 0L;
252 41 : sha_info->local = 0;
253 41 : sha_info->digestsize = 64;
254 41 : }
255 :
256 : static void
257 29 : sha384_init(SHAobject *sha_info)
258 : {
259 29 : sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8);
260 29 : sha_info->digest[1] = Py_ULL(0x629a292a367cd507);
261 29 : sha_info->digest[2] = Py_ULL(0x9159015a3070dd17);
262 29 : sha_info->digest[3] = Py_ULL(0x152fecd8f70e5939);
263 29 : sha_info->digest[4] = Py_ULL(0x67332667ffc00b31);
264 29 : sha_info->digest[5] = Py_ULL(0x8eb44a8768581511);
265 29 : sha_info->digest[6] = Py_ULL(0xdb0c2e0d64f98fa7);
266 29 : sha_info->digest[7] = Py_ULL(0x47b5481dbefa4fa4);
267 29 : sha_info->count_lo = 0L;
268 29 : sha_info->count_hi = 0L;
269 29 : sha_info->local = 0;
270 29 : sha_info->digestsize = 48;
271 29 : }
272 :
273 :
274 : /* update the SHA digest */
275 :
276 : static void
277 72 : sha512_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count)
278 : {
279 : Py_ssize_t i;
280 : SHA_INT32 clo;
281 :
282 72 : clo = sha_info->count_lo + ((SHA_INT32) count << 3);
283 72 : if (clo < sha_info->count_lo) {
284 0 : ++sha_info->count_hi;
285 : }
286 72 : sha_info->count_lo = clo;
287 72 : sha_info->count_hi += (SHA_INT32) count >> 29;
288 72 : if (sha_info->local) {
289 10 : i = SHA_BLOCKSIZE - sha_info->local;
290 10 : if (i > count) {
291 2 : i = count;
292 : }
293 10 : memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i);
294 10 : count -= i;
295 10 : buffer += i;
296 10 : sha_info->local += (int)i;
297 10 : if (sha_info->local == SHA_BLOCKSIZE) {
298 8 : sha512_transform(sha_info);
299 : }
300 : else {
301 2 : return;
302 : }
303 : }
304 47142 : while (count >= SHA_BLOCKSIZE) {
305 47072 : memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
306 47072 : buffer += SHA_BLOCKSIZE;
307 47072 : count -= SHA_BLOCKSIZE;
308 47072 : sha512_transform(sha_info);
309 : }
310 70 : memcpy(sha_info->data, buffer, count);
311 70 : sha_info->local = (int)count;
312 : }
313 :
314 : /* finish computing the SHA digest */
315 :
316 : static void
317 72 : sha512_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
318 : {
319 : int count;
320 : SHA_INT32 lo_bit_count, hi_bit_count;
321 :
322 72 : lo_bit_count = sha_info->count_lo;
323 72 : hi_bit_count = sha_info->count_hi;
324 72 : count = (int) ((lo_bit_count >> 3) & 0x7f);
325 72 : ((SHA_BYTE *) sha_info->data)[count++] = 0x80;
326 72 : if (count > SHA_BLOCKSIZE - 16) {
327 24 : memset(((SHA_BYTE *) sha_info->data) + count, 0,
328 24 : SHA_BLOCKSIZE - count);
329 24 : sha512_transform(sha_info);
330 24 : memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 16);
331 : }
332 : else {
333 48 : memset(((SHA_BYTE *) sha_info->data) + count, 0,
334 48 : SHA_BLOCKSIZE - 16 - count);
335 : }
336 :
337 : /* GJS: note that we add the hi/lo in big-endian. sha512_transform will
338 : swap these values into host-order. */
339 72 : sha_info->data[112] = 0;
340 72 : sha_info->data[113] = 0;
341 72 : sha_info->data[114] = 0;
342 72 : sha_info->data[115] = 0;
343 72 : sha_info->data[116] = 0;
344 72 : sha_info->data[117] = 0;
345 72 : sha_info->data[118] = 0;
346 72 : sha_info->data[119] = 0;
347 72 : sha_info->data[120] = (hi_bit_count >> 24) & 0xff;
348 72 : sha_info->data[121] = (hi_bit_count >> 16) & 0xff;
349 72 : sha_info->data[122] = (hi_bit_count >> 8) & 0xff;
350 72 : sha_info->data[123] = (hi_bit_count >> 0) & 0xff;
351 72 : sha_info->data[124] = (lo_bit_count >> 24) & 0xff;
352 72 : sha_info->data[125] = (lo_bit_count >> 16) & 0xff;
353 72 : sha_info->data[126] = (lo_bit_count >> 8) & 0xff;
354 72 : sha_info->data[127] = (lo_bit_count >> 0) & 0xff;
355 72 : sha512_transform(sha_info);
356 72 : digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 56) & 0xff);
357 72 : digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 48) & 0xff);
358 72 : digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 40) & 0xff);
359 72 : digest[ 3] = (unsigned char) ((sha_info->digest[0] >> 32) & 0xff);
360 72 : digest[ 4] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff);
361 72 : digest[ 5] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff);
362 72 : digest[ 6] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff);
363 72 : digest[ 7] = (unsigned char) ((sha_info->digest[0] ) & 0xff);
364 72 : digest[ 8] = (unsigned char) ((sha_info->digest[1] >> 56) & 0xff);
365 72 : digest[ 9] = (unsigned char) ((sha_info->digest[1] >> 48) & 0xff);
366 72 : digest[10] = (unsigned char) ((sha_info->digest[1] >> 40) & 0xff);
367 72 : digest[11] = (unsigned char) ((sha_info->digest[1] >> 32) & 0xff);
368 72 : digest[12] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff);
369 72 : digest[13] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff);
370 72 : digest[14] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff);
371 72 : digest[15] = (unsigned char) ((sha_info->digest[1] ) & 0xff);
372 72 : digest[16] = (unsigned char) ((sha_info->digest[2] >> 56) & 0xff);
373 72 : digest[17] = (unsigned char) ((sha_info->digest[2] >> 48) & 0xff);
374 72 : digest[18] = (unsigned char) ((sha_info->digest[2] >> 40) & 0xff);
375 72 : digest[19] = (unsigned char) ((sha_info->digest[2] >> 32) & 0xff);
376 72 : digest[20] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff);
377 72 : digest[21] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff);
378 72 : digest[22] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff);
379 72 : digest[23] = (unsigned char) ((sha_info->digest[2] ) & 0xff);
380 72 : digest[24] = (unsigned char) ((sha_info->digest[3] >> 56) & 0xff);
381 72 : digest[25] = (unsigned char) ((sha_info->digest[3] >> 48) & 0xff);
382 72 : digest[26] = (unsigned char) ((sha_info->digest[3] >> 40) & 0xff);
383 72 : digest[27] = (unsigned char) ((sha_info->digest[3] >> 32) & 0xff);
384 72 : digest[28] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff);
385 72 : digest[29] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff);
386 72 : digest[30] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff);
387 72 : digest[31] = (unsigned char) ((sha_info->digest[3] ) & 0xff);
388 72 : digest[32] = (unsigned char) ((sha_info->digest[4] >> 56) & 0xff);
389 72 : digest[33] = (unsigned char) ((sha_info->digest[4] >> 48) & 0xff);
390 72 : digest[34] = (unsigned char) ((sha_info->digest[4] >> 40) & 0xff);
391 72 : digest[35] = (unsigned char) ((sha_info->digest[4] >> 32) & 0xff);
392 72 : digest[36] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff);
393 72 : digest[37] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff);
394 72 : digest[38] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff);
395 72 : digest[39] = (unsigned char) ((sha_info->digest[4] ) & 0xff);
396 72 : digest[40] = (unsigned char) ((sha_info->digest[5] >> 56) & 0xff);
397 72 : digest[41] = (unsigned char) ((sha_info->digest[5] >> 48) & 0xff);
398 72 : digest[42] = (unsigned char) ((sha_info->digest[5] >> 40) & 0xff);
399 72 : digest[43] = (unsigned char) ((sha_info->digest[5] >> 32) & 0xff);
400 72 : digest[44] = (unsigned char) ((sha_info->digest[5] >> 24) & 0xff);
401 72 : digest[45] = (unsigned char) ((sha_info->digest[5] >> 16) & 0xff);
402 72 : digest[46] = (unsigned char) ((sha_info->digest[5] >> 8) & 0xff);
403 72 : digest[47] = (unsigned char) ((sha_info->digest[5] ) & 0xff);
404 72 : digest[48] = (unsigned char) ((sha_info->digest[6] >> 56) & 0xff);
405 72 : digest[49] = (unsigned char) ((sha_info->digest[6] >> 48) & 0xff);
406 72 : digest[50] = (unsigned char) ((sha_info->digest[6] >> 40) & 0xff);
407 72 : digest[51] = (unsigned char) ((sha_info->digest[6] >> 32) & 0xff);
408 72 : digest[52] = (unsigned char) ((sha_info->digest[6] >> 24) & 0xff);
409 72 : digest[53] = (unsigned char) ((sha_info->digest[6] >> 16) & 0xff);
410 72 : digest[54] = (unsigned char) ((sha_info->digest[6] >> 8) & 0xff);
411 72 : digest[55] = (unsigned char) ((sha_info->digest[6] ) & 0xff);
412 72 : digest[56] = (unsigned char) ((sha_info->digest[7] >> 56) & 0xff);
413 72 : digest[57] = (unsigned char) ((sha_info->digest[7] >> 48) & 0xff);
414 72 : digest[58] = (unsigned char) ((sha_info->digest[7] >> 40) & 0xff);
415 72 : digest[59] = (unsigned char) ((sha_info->digest[7] >> 32) & 0xff);
416 72 : digest[60] = (unsigned char) ((sha_info->digest[7] >> 24) & 0xff);
417 72 : digest[61] = (unsigned char) ((sha_info->digest[7] >> 16) & 0xff);
418 72 : digest[62] = (unsigned char) ((sha_info->digest[7] >> 8) & 0xff);
419 72 : digest[63] = (unsigned char) ((sha_info->digest[7] ) & 0xff);
420 72 : }
421 :
422 : /*
423 : * End of copied SHA code.
424 : *
425 : * ------------------------------------------------------------------------
426 : */
427 :
428 : typedef struct {
429 : PyTypeObject* sha384_type;
430 : PyTypeObject* sha512_type;
431 : } SHA512State;
432 :
433 : static inline SHA512State*
434 46177 : sha512_get_state(PyObject *module)
435 : {
436 46177 : void *state = PyModule_GetState(module);
437 46177 : assert(state != NULL);
438 46177 : return (SHA512State *)state;
439 : }
440 :
441 : static SHAobject *
442 30 : newSHA384object(SHA512State *st)
443 : {
444 30 : SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject, st->sha384_type);
445 30 : PyObject_GC_Track(sha);
446 30 : return sha;
447 : }
448 :
449 : static SHAobject *
450 42 : newSHA512object(SHA512State *st)
451 : {
452 42 : SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject, st->sha512_type);
453 42 : PyObject_GC_Track(sha);
454 42 : return sha;
455 : }
456 :
457 : /* Internal methods for a hash object */
458 : static int
459 72 : SHA_traverse(PyObject *ptr, visitproc visit, void *arg)
460 : {
461 72 : Py_VISIT(Py_TYPE(ptr));
462 72 : return 0;
463 : }
464 :
465 : static void
466 72 : SHA512_dealloc(PyObject *ptr)
467 : {
468 72 : PyTypeObject *tp = Py_TYPE(ptr);
469 72 : PyObject_GC_UnTrack(ptr);
470 72 : PyObject_GC_Del(ptr);
471 72 : Py_DECREF(tp);
472 72 : }
473 :
474 :
475 : /* External methods for a hash object */
476 :
477 : /*[clinic input]
478 : SHA512Type.copy
479 :
480 : cls: defining_class
481 :
482 : Return a copy of the hash object.
483 : [clinic start generated code]*/
484 :
485 : static PyObject *
486 2 : SHA512Type_copy_impl(SHAobject *self, PyTypeObject *cls)
487 : /*[clinic end generated code: output=85ea5b47837a08e6 input=f673a18f66527c90]*/
488 : {
489 : SHAobject *newobj;
490 2 : SHA512State *st = PyType_GetModuleState(cls);
491 :
492 2 : if (Py_IS_TYPE((PyObject*)self, st->sha512_type)) {
493 1 : if ( (newobj = newSHA512object(st))==NULL) {
494 0 : return NULL;
495 : }
496 : }
497 : else {
498 1 : if ( (newobj = newSHA384object(st))==NULL) {
499 0 : return NULL;
500 : }
501 : }
502 :
503 2 : SHAcopy(self, newobj);
504 2 : return (PyObject *)newobj;
505 : }
506 :
507 : /*[clinic input]
508 : SHA512Type.digest
509 :
510 : Return the digest value as a bytes object.
511 : [clinic start generated code]*/
512 :
513 : static PyObject *
514 42 : SHA512Type_digest_impl(SHAobject *self)
515 : /*[clinic end generated code: output=1080bbeeef7dde1b input=f6470dd359071f4b]*/
516 : {
517 : unsigned char digest[SHA_DIGESTSIZE];
518 : SHAobject temp;
519 :
520 42 : SHAcopy(self, &temp);
521 42 : sha512_final(digest, &temp);
522 42 : return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);
523 : }
524 :
525 : /*[clinic input]
526 : SHA512Type.hexdigest
527 :
528 : Return the digest value as a string of hexadecimal digits.
529 : [clinic start generated code]*/
530 :
531 : static PyObject *
532 30 : SHA512Type_hexdigest_impl(SHAobject *self)
533 : /*[clinic end generated code: output=7373305b8601e18b input=498b877b25cbe0a2]*/
534 : {
535 : unsigned char digest[SHA_DIGESTSIZE];
536 : SHAobject temp;
537 :
538 : /* Get the raw (binary) digest value */
539 30 : SHAcopy(self, &temp);
540 30 : sha512_final(digest, &temp);
541 :
542 30 : return _Py_strhex((const char *)digest, self->digestsize);
543 : }
544 :
545 : /*[clinic input]
546 : SHA512Type.update
547 :
548 : obj: object
549 : /
550 :
551 : Update this hash object's state with the provided string.
552 : [clinic start generated code]*/
553 :
554 : static PyObject *
555 40 : SHA512Type_update(SHAobject *self, PyObject *obj)
556 : /*[clinic end generated code: output=1cf333e73995a79e input=ded2b46656566283]*/
557 : {
558 : Py_buffer buf;
559 :
560 40 : GET_BUFFER_VIEW_OR_ERROUT(obj, &buf);
561 :
562 40 : sha512_update(self, buf.buf, buf.len);
563 :
564 40 : PyBuffer_Release(&buf);
565 40 : Py_RETURN_NONE;
566 : }
567 :
568 : static PyMethodDef SHA_methods[] = {
569 : SHA512TYPE_COPY_METHODDEF
570 : SHA512TYPE_DIGEST_METHODDEF
571 : SHA512TYPE_HEXDIGEST_METHODDEF
572 : SHA512TYPE_UPDATE_METHODDEF
573 : {NULL, NULL} /* sentinel */
574 : };
575 :
576 : static PyObject *
577 2 : SHA512_get_block_size(PyObject *self, void *closure)
578 : {
579 2 : return PyLong_FromLong(SHA_BLOCKSIZE);
580 : }
581 :
582 : static PyObject *
583 20 : SHA512_get_name(PyObject *self, void *closure)
584 : {
585 20 : if (((SHAobject *)self)->digestsize == 64)
586 10 : return PyUnicode_FromStringAndSize("sha512", 6);
587 : else
588 10 : return PyUnicode_FromStringAndSize("sha384", 6);
589 : }
590 :
591 : static PyGetSetDef SHA_getseters[] = {
592 : {"block_size",
593 : (getter)SHA512_get_block_size, NULL,
594 : NULL,
595 : NULL},
596 : {"name",
597 : (getter)SHA512_get_name, NULL,
598 : NULL,
599 : NULL},
600 : {NULL} /* Sentinel */
601 : };
602 :
603 : static PyMemberDef SHA_members[] = {
604 : {"digest_size", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL},
605 : {NULL} /* Sentinel */
606 : };
607 :
608 : static PyType_Slot sha512_sha384_type_slots[] = {
609 : {Py_tp_dealloc, SHA512_dealloc},
610 : {Py_tp_methods, SHA_methods},
611 : {Py_tp_members, SHA_members},
612 : {Py_tp_getset, SHA_getseters},
613 : {Py_tp_traverse, SHA_traverse},
614 : {0,0}
615 : };
616 :
617 : static PyType_Spec sha512_sha384_type_spec = {
618 : .name = "_sha512.sha384",
619 : .basicsize = sizeof(SHAobject),
620 : .flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION |
621 : Py_TPFLAGS_IMMUTABLETYPE | Py_TPFLAGS_HAVE_GC),
622 : .slots = sha512_sha384_type_slots
623 : };
624 :
625 : static PyType_Slot sha512_sha512_type_slots[] = {
626 : {Py_tp_dealloc, SHA512_dealloc},
627 : {Py_tp_methods, SHA_methods},
628 : {Py_tp_members, SHA_members},
629 : {Py_tp_getset, SHA_getseters},
630 : {Py_tp_traverse, SHA_traverse},
631 : {0,0}
632 : };
633 :
634 : // Using PyType_GetModuleState() on this type is safe since
635 : // it cannot be subclassed: it does not have the Py_TPFLAGS_BASETYPE flag.
636 : static PyType_Spec sha512_sha512_type_spec = {
637 : .name = "_sha512.sha512",
638 : .basicsize = sizeof(SHAobject),
639 : .flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION |
640 : Py_TPFLAGS_IMMUTABLETYPE | Py_TPFLAGS_HAVE_GC),
641 : .slots = sha512_sha512_type_slots
642 : };
643 :
644 : /* The single module-level function: new() */
645 :
646 : /*[clinic input]
647 : _sha512.sha512
648 :
649 : string: object(c_default="NULL") = b''
650 : *
651 : usedforsecurity: bool = True
652 :
653 : Return a new SHA-512 hash object; optionally initialized with a string.
654 : [clinic start generated code]*/
655 :
656 : static PyObject *
657 42 : _sha512_sha512_impl(PyObject *module, PyObject *string, int usedforsecurity)
658 : /*[clinic end generated code: output=a8d9e5f9e6a0831c input=23b4daebc2ebb9c9]*/
659 : {
660 : SHAobject *new;
661 : Py_buffer buf;
662 :
663 42 : SHA512State *st = sha512_get_state(module);
664 :
665 42 : if (string)
666 23 : GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
667 :
668 41 : if ((new = newSHA512object(st)) == NULL) {
669 0 : if (string)
670 0 : PyBuffer_Release(&buf);
671 0 : return NULL;
672 : }
673 :
674 41 : sha512_init(new);
675 :
676 41 : if (PyErr_Occurred()) {
677 0 : Py_DECREF(new);
678 0 : if (string)
679 0 : PyBuffer_Release(&buf);
680 0 : return NULL;
681 : }
682 41 : if (string) {
683 22 : sha512_update(new, buf.buf, buf.len);
684 22 : PyBuffer_Release(&buf);
685 : }
686 :
687 41 : return (PyObject *)new;
688 : }
689 :
690 : /*[clinic input]
691 : _sha512.sha384
692 :
693 : string: object(c_default="NULL") = b''
694 : *
695 : usedforsecurity: bool = True
696 :
697 : Return a new SHA-384 hash object; optionally initialized with a string.
698 : [clinic start generated code]*/
699 :
700 : static PyObject *
701 30 : _sha512_sha384_impl(PyObject *module, PyObject *string, int usedforsecurity)
702 : /*[clinic end generated code: output=da7d594a08027ac3 input=59ef72f039a6b431]*/
703 : {
704 : SHAobject *new;
705 : Py_buffer buf;
706 :
707 30 : SHA512State *st = sha512_get_state(module);
708 :
709 30 : if (string)
710 11 : GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
711 :
712 29 : if ((new = newSHA384object(st)) == NULL) {
713 0 : if (string)
714 0 : PyBuffer_Release(&buf);
715 0 : return NULL;
716 : }
717 :
718 29 : sha384_init(new);
719 :
720 29 : if (PyErr_Occurred()) {
721 0 : Py_DECREF(new);
722 0 : if (string)
723 0 : PyBuffer_Release(&buf);
724 0 : return NULL;
725 : }
726 29 : if (string) {
727 10 : sha512_update(new, buf.buf, buf.len);
728 10 : PyBuffer_Release(&buf);
729 : }
730 :
731 29 : return (PyObject *)new;
732 : }
733 :
734 :
735 : /* List of functions exported by this module */
736 :
737 : static struct PyMethodDef SHA_functions[] = {
738 : _SHA512_SHA512_METHODDEF
739 : _SHA512_SHA384_METHODDEF
740 : {NULL, NULL} /* Sentinel */
741 : };
742 :
743 : static int
744 42784 : _sha512_traverse(PyObject *module, visitproc visit, void *arg)
745 : {
746 42784 : SHA512State *state = sha512_get_state(module);
747 42784 : Py_VISIT(state->sha384_type);
748 42784 : Py_VISIT(state->sha512_type);
749 42784 : return 0;
750 : }
751 :
752 : static int
753 2214 : _sha512_clear(PyObject *module)
754 : {
755 2214 : SHA512State *state = sha512_get_state(module);
756 2214 : Py_CLEAR(state->sha384_type);
757 2214 : Py_CLEAR(state->sha512_type);
758 2214 : return 0;
759 : }
760 :
761 : static void
762 1107 : _sha512_free(void *module)
763 : {
764 1107 : _sha512_clear((PyObject *)module);
765 1107 : }
766 :
767 :
768 : /* Initialize this module. */
769 : static int
770 1107 : _sha512_exec(PyObject *m)
771 : {
772 1107 : SHA512State* st = sha512_get_state(m);
773 :
774 1107 : st->sha384_type = (PyTypeObject *)PyType_FromModuleAndSpec(
775 : m, &sha512_sha384_type_spec, NULL);
776 :
777 1107 : st->sha512_type = (PyTypeObject *)PyType_FromModuleAndSpec(
778 : m, &sha512_sha512_type_spec, NULL);
779 :
780 1107 : if (st->sha384_type == NULL || st->sha512_type == NULL) {
781 0 : return -1;
782 : }
783 :
784 1107 : Py_INCREF(st->sha384_type);
785 1107 : if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha384_type) < 0) {
786 0 : Py_DECREF(st->sha384_type);
787 0 : return -1;
788 : }
789 :
790 1107 : Py_INCREF(st->sha512_type);
791 1107 : if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha512_type) < 0) {
792 0 : Py_DECREF(st->sha512_type);
793 0 : return -1;
794 : }
795 :
796 1107 : return 0;
797 : }
798 :
799 : static PyModuleDef_Slot _sha512_slots[] = {
800 : {Py_mod_exec, _sha512_exec},
801 : {0, NULL}
802 : };
803 :
804 : static struct PyModuleDef _sha512module = {
805 : PyModuleDef_HEAD_INIT,
806 : .m_name = "_sha512",
807 : .m_size = sizeof(SHA512State),
808 : .m_methods = SHA_functions,
809 : .m_slots = _sha512_slots,
810 : .m_traverse = _sha512_traverse,
811 : .m_clear = _sha512_clear,
812 : .m_free = _sha512_free
813 : };
814 :
815 : PyMODINIT_FUNC
816 1107 : PyInit__sha512(void)
817 : {
818 1107 : return PyModuleDef_Init(&_sha512module);
819 : }
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