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/* 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 wasbased upon. Additional work performed by:Andrew Kuchling (amk@amk.ca)Greg Stein (gstein@lyra.org)Trevor Perrin (trevp@trevp.net)Copyright (C) 2005-2007 Gregory P. Smith (greg@krypto.org)Licensed to PSF under a Contributor Agreement.*//* SHA objects */#include "Python.h"#include "structmember.h"#include "hashlib.h"#include "pystrhex.h"/*[clinic input]module _sha512class SHA512Type "SHAobject *" "&PyType_Type"[clinic start generated code]*//*[clinic end generated code: output=da39a3ee5e6b4b0d input=81a3ccde92bcfe8d]*//* Some useful types */typedef unsigned char SHA_BYTE;#if SIZEOF_INT == 4typedef unsigned int SHA_INT32; /* 32-bit integer */typedef unsigned 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_HEADSHA_INT64 digest[8]; /* Message digest */SHA_INT32 count_lo, count_hi; /* 64-bit bit count */SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */int local; /* unprocessed amount in data */int digestsize;} SHAobject;#include "clinic/sha512module.c.h"/* When run on a little-endian CPU we need to perform byte reversal on anarray of longwords. */#if PY_LITTLE_ENDIANstatic void longReverse(SHA_INT64 *buffer, int byteCount){SHA_INT64 value;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++;}}#endifstatic void SHAcopy(SHAobject *src, SHAobject *dest){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* guarantee it works.** Tom St Denis, tomstdenis@iahu.ca, https://www.libtom.net*//* SHA512 by Tom St Denis *//* Various logical functions */#define ROR64(x, y) \( ((((x) & 0xFFFFFFFFFFFFFFFFULL)>>((unsigned long long)(y) & 63)) | \((x)<<((unsigned long long)(64-((y) & 63))))) & 0xFFFFFFFFFFFFFFFFULL)#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) & 0xFFFFFFFFFFFFFFFFULL) >> ((unsigned 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 voidsha512_transform(SHAobject *sha_info){int i;SHA_INT64 S[8], W[80], t0, t1;memcpy(W, sha_info->data, sizeof(sha_info->data));#if PY_LITTLE_ENDIANlongReverse(W, (int)sizeof(sha_info->data));#endiffor (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],0,0x428a2f98d728ae22ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x7137449123ef65cdULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcfec4d3b2fULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba58189dbbcULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25bf348b538ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1b605d019ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4af194f9bULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5da6d8118ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98a3030242ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b0145706fbeULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be4ee4b28cULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3d5ffb4e2ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74f27b896fULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe3b1696b1ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a725c71235ULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174cf692694ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c19ef14ad2ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786384f25e3ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc68b8cd5b5ULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc77ac9c65ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f592b0275ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa6ea6e483ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dcbd41fbd4ULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da831153b5ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152ee66dfabULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d2db43210ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c898fb213fULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7beef0ee4ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf33da88fc2ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147930aa725ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351e003826fULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x142929670a0e6e70ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a8546d22ffcULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b21385c26c926ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc5ac42aedULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d139d95b3dfULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a73548baf63deULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb3c77b2a8ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e47edaee6ULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c851482353bULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a14cf10364ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664bbc423001ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70d0f89791ULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a30654be30ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819d6ef5218ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd69906245565a910ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e35855771202aULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa07032bbd1b8ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116b8d2d0c8ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c085141ab53ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774cdf8eeb99ULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5e19b48a8ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3c5c95a63ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4ae3418acbULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f7763e373ULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3d6b2b8a3ULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee5defb2fcULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f43172f60ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814a1f0ab72ULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc702081a6439ecULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa23631e28ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506cebde82bde9ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7b2c67915ULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2e372532bULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,0xca273eceea26619cULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,0xd186b8c721c0c207ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,0xeada7dd6cde0eb1eULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,0xf57d4f7fee6ed178ULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,0x06f067aa72176fbaULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,0x0a637dc5a2c898a6ULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,0x113f9804bef90daeULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,0x1b710b35131c471bULL);RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,0x28db77f523047d84ULL);RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,0x32caab7b40c72493ULL);RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,0x3c9ebe0a15c9bebcULL);RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,0x431d67c49c100d4cULL);RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,0x4cc5d4becb3e42b6ULL);RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,0x597f299cfc657e2aULL);RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,0x5fcb6fab3ad6faecULL);RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,0x6c44198c4a475817ULL);#undef RND/* feedback */for (i = 0; i < 8; i++) {sha_info->digest[i] = sha_info->digest[i] + S[i];}}/* initialize the SHA digest */static voidsha512_init(SHAobject *sha_info){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 voidsha384_init(SHAobject *sha_info){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 voidsha512_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count){Py_ssize_t 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 += (int)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 = (int)count;}/* finish computing the SHA digest */static voidsha512_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 willswap 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 voidSHA512_dealloc(PyObject *ptr){PyObject_Del(ptr);}/* External methods for a hash object *//*[clinic input]SHA512Type.copyReturn a copy of the hash object.[clinic start generated code]*/static PyObject *SHA512Type_copy_impl(SHAobject *self)/*[clinic end generated code: output=adea896ed3164821 input=9f5f31e6c457776a]*/{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;}/*[clinic input]SHA512Type.digestReturn the digest value as a bytes object.[clinic start generated code]*/static PyObject *SHA512Type_digest_impl(SHAobject *self)/*[clinic end generated code: output=1080bbeeef7dde1b input=f6470dd359071f4b]*/{unsigned char digest[SHA_DIGESTSIZE];SHAobject temp;SHAcopy(self, &temp);sha512_final(digest, &temp);return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);}/*[clinic input]SHA512Type.hexdigestReturn the digest value as a string of hexadecimal digits.[clinic start generated code]*/static PyObject *SHA512Type_hexdigest_impl(SHAobject *self)/*[clinic end generated code: output=7373305b8601e18b input=498b877b25cbe0a2]*/{unsigned char digest[SHA_DIGESTSIZE];SHAobject temp;/* Get the raw (binary) digest value */SHAcopy(self, &temp);sha512_final(digest, &temp);return _Py_strhex((const char *)digest, self->digestsize);}/*[clinic input]SHA512Type.updateobj: object/Update this hash object's state with the provided string.[clinic start generated code]*/static PyObject *SHA512Type_update(SHAobject *self, PyObject *obj)/*[clinic end generated code: output=1cf333e73995a79e input=ded2b46656566283]*/{Py_buffer buf;GET_BUFFER_VIEW_OR_ERROUT(obj, &buf);sha512_update(self, buf.buf, buf.len);PyBuffer_Release(&buf);Py_RETURN_NONE;}static PyMethodDef SHA_methods[] = {SHA512TYPE_COPY_METHODDEFSHA512TYPE_DIGEST_METHODDEFSHA512TYPE_HEXDIGEST_METHODDEFSHA512TYPE_UPDATE_METHODDEF{NULL, NULL} /* sentinel */};static PyObject *SHA512_get_block_size(PyObject *self, void *closure){return PyLong_FromLong(SHA_BLOCKSIZE);}static PyObject *SHA512_get_name(PyObject *self, void *closure){if (((SHAobject *)self)->digestsize == 64)return PyUnicode_FromStringAndSize("sha512", 6);elsereturn PyUnicode_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},{NULL} /* Sentinel */};static PyTypeObject SHA384type = {PyVarObject_HEAD_INIT(NULL, 0)"_sha512.sha384", /*tp_name*/sizeof(SHAobject), /*tp_basicsize*/0, /*tp_itemsize*//* methods */SHA512_dealloc, /*tp_dealloc*/0, /*tp_vectorcall_offset*/0, /*tp_getattr*/0, /*tp_setattr*/0, /*tp_as_async*/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_basicsize*/0, /*tp_itemsize*//* methods */SHA512_dealloc, /*tp_dealloc*/0, /*tp_vectorcall_offset*/0, /*tp_getattr*/0, /*tp_setattr*/0, /*tp_as_async*/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() *//*[clinic input]_sha512.sha512string: object(c_default="NULL") = b''Return a new SHA-512 hash object; optionally initialized with a string.[clinic start generated code]*/static PyObject *_sha512_sha512_impl(PyObject *module, PyObject *string)/*[clinic end generated code: output=8b865a2df73bd387 input=e69bad9ae9b6a308]*/{SHAobject *new;Py_buffer buf;if (string)GET_BUFFER_VIEW_OR_ERROUT(string, &buf);if ((new = newSHA512object()) == NULL) {if (string)PyBuffer_Release(&buf);return NULL;}sha512_init(new);if (PyErr_Occurred()) {Py_DECREF(new);if (string)PyBuffer_Release(&buf);return NULL;}if (string) {sha512_update(new, buf.buf, buf.len);PyBuffer_Release(&buf);}return (PyObject *)new;}/*[clinic input]_sha512.sha384string: object(c_default="NULL") = b''Return a new SHA-384 hash object; optionally initialized with a string.[clinic start generated code]*/static PyObject *_sha512_sha384_impl(PyObject *module, PyObject *string)/*[clinic end generated code: output=ae4b2e26decf81e8 input=c9327788d4ea4545]*/{SHAobject *new;Py_buffer buf;if (string)GET_BUFFER_VIEW_OR_ERROUT(string, &buf);if ((new = newSHA384object()) == NULL) {if (string)PyBuffer_Release(&buf);return NULL;}sha384_init(new);if (PyErr_Occurred()) {Py_DECREF(new);if (string)PyBuffer_Release(&buf);return NULL;}if (string) {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_SHA512_METHODDEF_SHA512_SHA384_METHODDEF{NULL, NULL} /* Sentinel */};/* Initialize this module. */#define insint(n,v) { PyModule_AddIntConstant(m,n,v); }static struct PyModuleDef _sha512module = {PyModuleDef_HEAD_INIT,"_sha512",NULL,-1,SHA_functions,NULL,NULL,NULL,NULL};PyMODINIT_FUNCPyInit__sha512(void){PyObject *m;Py_TYPE(&SHA384type) = &PyType_Type;if (PyType_Ready(&SHA384type) < 0)return NULL;Py_TYPE(&SHA512type) = &PyType_Type;if (PyType_Ready(&SHA512type) < 0)return NULL;m = PyModule_Create(&_sha512module);if (m == NULL)return NULL;Py_INCREF((PyObject *)&SHA384type);PyModule_AddObject(m, "SHA384Type", (PyObject *)&SHA384type);Py_INCREF((PyObject *)&SHA512type);PyModule_AddObject(m, "SHA512Type", (PyObject *)&SHA512type);return m;}
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