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