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802 lines
27 KiB
C
802 lines
27 KiB
C
/* SHA512 module */
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/* This module provides an interface to NIST's SHA-512 and SHA-384 Algorithms */
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/* See below for information about the original code this module was
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based upon. Additional work performed by:
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Andrew Kuchling (amk@amk.ca)
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Greg Stein (gstein@lyra.org)
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Trevor Perrin (trevp@trevp.net)
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Copyright (C) 2005-2007 Gregory P. Smith (greg@krypto.org)
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Licensed to PSF under a Contributor Agreement.
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*/
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/* SHA objects */
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#include "Python.h"
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#include "pycore_bitutils.h" // _Py_bswap64()
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#include "structmember.h" // PyMemberDef
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#include "hashlib.h"
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#include "pystrhex.h"
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/*[clinic input]
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module _sha512
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class SHA512Type "SHAobject *" "&PyType_Type"
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[clinic start generated code]*/
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/*[clinic end generated code: output=da39a3ee5e6b4b0d input=81a3ccde92bcfe8d]*/
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/* Some useful types */
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typedef unsigned char SHA_BYTE;
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typedef uint32_t SHA_INT32; /* 32-bit integer */
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typedef uint64_t SHA_INT64; /* 64-bit integer */
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/* The SHA block size and message digest sizes, in bytes */
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#define SHA_BLOCKSIZE 128
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#define SHA_DIGESTSIZE 64
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/* The structure for storing SHA info */
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typedef struct {
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PyObject_HEAD
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SHA_INT64 digest[8]; /* Message digest */
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SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
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SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
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int local; /* unprocessed amount in data */
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int digestsize;
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} SHAobject;
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#include "clinic/sha512module.c.h"
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/* When run on a little-endian CPU we need to perform byte reversal on an
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array of longwords. */
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#if PY_LITTLE_ENDIAN
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static void longReverse(SHA_INT64 *buffer, int byteCount)
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{
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byteCount /= sizeof(*buffer);
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for (; byteCount--; buffer++) {
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*buffer = _Py_bswap64(*buffer);
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}
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}
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#endif
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static void SHAcopy(SHAobject *src, SHAobject *dest)
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{
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dest->local = src->local;
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dest->digestsize = src->digestsize;
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dest->count_lo = src->count_lo;
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dest->count_hi = src->count_hi;
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memcpy(dest->digest, src->digest, sizeof(src->digest));
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memcpy(dest->data, src->data, sizeof(src->data));
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}
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/* ------------------------------------------------------------------------
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*
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* This code for the SHA-512 algorithm was noted as public domain. The
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* original headers are pasted below.
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*
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* Several changes have been made to make it more compatible with the
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* Python environment and desired interface.
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*
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*/
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, https://www.libtom.net
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*/
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/* SHA512 by Tom St Denis */
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/* Various logical functions */
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#define ROR64(x, y) \
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( ((((x) & 0xFFFFFFFFFFFFFFFFULL)>>((unsigned long long)(y) & 63)) | \
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((x)<<((unsigned long long)(64-((y) & 63))))) & 0xFFFFFFFFFFFFFFFFULL)
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#define Ch(x,y,z) (z ^ (x & (y ^ z)))
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#define Maj(x,y,z) (((x | y) & z) | (x & y))
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#define S(x, n) ROR64((x),(n))
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#define R(x, n) (((x) & 0xFFFFFFFFFFFFFFFFULL) >> ((unsigned long long)n))
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#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
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#define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
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#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
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#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
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static void
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sha512_transform(SHAobject *sha_info)
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{
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int i;
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SHA_INT64 S[8], W[80], t0, t1;
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memcpy(W, sha_info->data, sizeof(sha_info->data));
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#if PY_LITTLE_ENDIAN
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longReverse(W, (int)sizeof(sha_info->data));
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#endif
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for (i = 16; i < 80; ++i) {
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W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
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}
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for (i = 0; i < 8; ++i) {
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S[i] = sha_info->digest[i];
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}
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/* Compress */
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#define RND(a,b,c,d,e,f,g,h,i,ki) \
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t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
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t1 = Sigma0(a) + Maj(a, b, c); \
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d += t0; \
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h = t0 + t1;
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98d728ae22ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x7137449123ef65cdULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcfec4d3b2fULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba58189dbbcULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25bf348b538ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1b605d019ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4af194f9bULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5da6d8118ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98a3030242ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b0145706fbeULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be4ee4b28cULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3d5ffb4e2ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74f27b896fULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe3b1696b1ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a725c71235ULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174cf692694ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c19ef14ad2ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786384f25e3ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc68b8cd5b5ULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc77ac9c65ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f592b0275ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa6ea6e483ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dcbd41fbd4ULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da831153b5ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152ee66dfabULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d2db43210ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c898fb213fULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7beef0ee4ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf33da88fc2ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147930aa725ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351e003826fULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x142929670a0e6e70ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a8546d22ffcULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b21385c26c926ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc5ac42aedULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d139d95b3dfULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a73548baf63deULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb3c77b2a8ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e47edaee6ULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c851482353bULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a14cf10364ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664bbc423001ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70d0f89791ULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a30654be30ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819d6ef5218ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd69906245565a910ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e35855771202aULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa07032bbd1b8ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116b8d2d0c8ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c085141ab53ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774cdf8eeb99ULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5e19b48a8ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3c5c95a63ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4ae3418acbULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f7763e373ULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3d6b2b8a3ULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee5defb2fcULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f43172f60ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814a1f0ab72ULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc702081a6439ecULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa23631e28ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506cebde82bde9ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7b2c67915ULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2e372532bULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],64,0xca273eceea26619cULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],65,0xd186b8c721c0c207ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],66,0xeada7dd6cde0eb1eULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],67,0xf57d4f7fee6ed178ULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],68,0x06f067aa72176fbaULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],69,0x0a637dc5a2c898a6ULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],70,0x113f9804bef90daeULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],71,0x1b710b35131c471bULL);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],72,0x28db77f523047d84ULL);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],73,0x32caab7b40c72493ULL);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],74,0x3c9ebe0a15c9bebcULL);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],75,0x431d67c49c100d4cULL);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],76,0x4cc5d4becb3e42b6ULL);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],77,0x597f299cfc657e2aULL);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],78,0x5fcb6fab3ad6faecULL);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],79,0x6c44198c4a475817ULL);
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#undef RND
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/* feedback */
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for (i = 0; i < 8; i++) {
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sha_info->digest[i] = sha_info->digest[i] + S[i];
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}
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}
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/* initialize the SHA digest */
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static void
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sha512_init(SHAobject *sha_info)
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{
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sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908);
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sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b);
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sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b);
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sha_info->digest[3] = Py_ULL(0xa54ff53a5f1d36f1);
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sha_info->digest[4] = Py_ULL(0x510e527fade682d1);
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sha_info->digest[5] = Py_ULL(0x9b05688c2b3e6c1f);
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sha_info->digest[6] = Py_ULL(0x1f83d9abfb41bd6b);
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sha_info->digest[7] = Py_ULL(0x5be0cd19137e2179);
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sha_info->count_lo = 0L;
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sha_info->count_hi = 0L;
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sha_info->local = 0;
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sha_info->digestsize = 64;
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}
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static void
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sha384_init(SHAobject *sha_info)
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{
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sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8);
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sha_info->digest[1] = Py_ULL(0x629a292a367cd507);
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sha_info->digest[2] = Py_ULL(0x9159015a3070dd17);
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sha_info->digest[3] = Py_ULL(0x152fecd8f70e5939);
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sha_info->digest[4] = Py_ULL(0x67332667ffc00b31);
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sha_info->digest[5] = Py_ULL(0x8eb44a8768581511);
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sha_info->digest[6] = Py_ULL(0xdb0c2e0d64f98fa7);
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sha_info->digest[7] = Py_ULL(0x47b5481dbefa4fa4);
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sha_info->count_lo = 0L;
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sha_info->count_hi = 0L;
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sha_info->local = 0;
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sha_info->digestsize = 48;
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}
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/* update the SHA digest */
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static void
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sha512_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count)
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{
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Py_ssize_t i;
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SHA_INT32 clo;
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clo = sha_info->count_lo + ((SHA_INT32) count << 3);
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if (clo < sha_info->count_lo) {
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++sha_info->count_hi;
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}
|
|
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 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.
|
|
*
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
typedef struct {
|
|
PyTypeObject* sha384_type;
|
|
PyTypeObject* sha512_type;
|
|
} SHA512State;
|
|
|
|
static inline SHA512State*
|
|
sha512_get_state(PyObject *module)
|
|
{
|
|
void *state = PyModule_GetState(module);
|
|
assert(state != NULL);
|
|
return (SHA512State *)state;
|
|
}
|
|
|
|
static SHAobject *
|
|
newSHA384object(SHA512State *st)
|
|
{
|
|
return (SHAobject *)PyObject_New(SHAobject, st->sha384_type);
|
|
}
|
|
|
|
static SHAobject *
|
|
newSHA512object(SHA512State *st)
|
|
{
|
|
return (SHAobject *)PyObject_New(SHAobject, st->sha512_type);
|
|
}
|
|
|
|
/* Internal methods for a hash object */
|
|
|
|
static void
|
|
SHA512_dealloc(PyObject *ptr)
|
|
{
|
|
PyTypeObject *tp = Py_TYPE(ptr);
|
|
PyObject_Free(ptr);
|
|
Py_DECREF(tp);
|
|
}
|
|
|
|
|
|
/* External methods for a hash object */
|
|
|
|
/*[clinic input]
|
|
SHA512Type.copy
|
|
|
|
cls: defining_class
|
|
|
|
Return a copy of the hash object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
SHA512Type_copy_impl(SHAobject *self, PyTypeObject *cls)
|
|
/*[clinic end generated code: output=85ea5b47837a08e6 input=f673a18f66527c90]*/
|
|
{
|
|
SHAobject *newobj;
|
|
SHA512State *st = PyType_GetModuleState(cls);
|
|
|
|
if (Py_IS_TYPE((PyObject*)self, st->sha512_type)) {
|
|
if ( (newobj = newSHA512object(st))==NULL) {
|
|
return NULL;
|
|
}
|
|
}
|
|
else {
|
|
if ( (newobj = newSHA384object(st))==NULL) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
SHAcopy(self, newobj);
|
|
return (PyObject *)newobj;
|
|
}
|
|
|
|
/*[clinic input]
|
|
SHA512Type.digest
|
|
|
|
Return 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.hexdigest
|
|
|
|
Return 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.update
|
|
|
|
obj: 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_METHODDEF
|
|
SHA512TYPE_DIGEST_METHODDEF
|
|
SHA512TYPE_HEXDIGEST_METHODDEF
|
|
SHA512TYPE_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);
|
|
else
|
|
return 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 PyType_Slot sha512_sha384_type_slots[] = {
|
|
{Py_tp_dealloc, SHA512_dealloc},
|
|
{Py_tp_methods, SHA_methods},
|
|
{Py_tp_members, SHA_members},
|
|
{Py_tp_getset, SHA_getseters},
|
|
{0,0}
|
|
};
|
|
|
|
static PyType_Spec sha512_sha384_type_spec = {
|
|
.name = "_sha512.sha384",
|
|
.basicsize = sizeof(SHAobject),
|
|
.flags = Py_TPFLAGS_DEFAULT,
|
|
.slots = sha512_sha384_type_slots
|
|
};
|
|
|
|
static PyType_Slot sha512_sha512_type_slots[] = {
|
|
{Py_tp_dealloc, SHA512_dealloc},
|
|
{Py_tp_methods, SHA_methods},
|
|
{Py_tp_members, SHA_members},
|
|
{Py_tp_getset, SHA_getseters},
|
|
{0,0}
|
|
};
|
|
|
|
// Using PyType_GetModuleState() on this type is safe since
|
|
// it cannot be subclassed: it does not have the Py_TPFLAGS_BASETYPE flag.
|
|
static PyType_Spec sha512_sha512_type_spec = {
|
|
.name = "_sha512.sha512",
|
|
.basicsize = sizeof(SHAobject),
|
|
.flags = Py_TPFLAGS_DEFAULT,
|
|
.slots = sha512_sha512_type_slots
|
|
};
|
|
|
|
/* The single module-level function: new() */
|
|
|
|
/*[clinic input]
|
|
_sha512.sha512
|
|
|
|
string: object(c_default="NULL") = b''
|
|
*
|
|
usedforsecurity: bool = True
|
|
|
|
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, int usedforsecurity)
|
|
/*[clinic end generated code: output=a8d9e5f9e6a0831c input=23b4daebc2ebb9c9]*/
|
|
{
|
|
SHAobject *new;
|
|
Py_buffer buf;
|
|
|
|
SHA512State *st = sha512_get_state(module);
|
|
|
|
if (string)
|
|
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
|
|
|
|
if ((new = newSHA512object(st)) == 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.sha384
|
|
|
|
string: object(c_default="NULL") = b''
|
|
*
|
|
usedforsecurity: bool = True
|
|
|
|
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, int usedforsecurity)
|
|
/*[clinic end generated code: output=da7d594a08027ac3 input=59ef72f039a6b431]*/
|
|
{
|
|
SHAobject *new;
|
|
Py_buffer buf;
|
|
|
|
SHA512State *st = sha512_get_state(module);
|
|
|
|
if (string)
|
|
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
|
|
|
|
if ((new = newSHA384object(st)) == 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 */
|
|
};
|
|
|
|
static int
|
|
_sha512_traverse(PyObject *module, visitproc visit, void *arg)
|
|
{
|
|
SHA512State *state = sha512_get_state(module);
|
|
Py_VISIT(state->sha384_type);
|
|
Py_VISIT(state->sha512_type);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
_sha512_clear(PyObject *module)
|
|
{
|
|
SHA512State *state = sha512_get_state(module);
|
|
Py_CLEAR(state->sha384_type);
|
|
Py_CLEAR(state->sha512_type);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_sha512_free(void *module)
|
|
{
|
|
_sha512_clear((PyObject *)module);
|
|
}
|
|
|
|
|
|
/* Initialize this module. */
|
|
static int
|
|
_sha512_exec(PyObject *m)
|
|
{
|
|
SHA512State* st = sha512_get_state(m);
|
|
|
|
st->sha384_type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &sha512_sha384_type_spec, NULL);
|
|
|
|
st->sha512_type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &sha512_sha512_type_spec, NULL);
|
|
|
|
if (st->sha384_type == NULL || st->sha512_type == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
Py_INCREF(st->sha384_type);
|
|
if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha384_type) < 0) {
|
|
Py_DECREF(st->sha384_type);
|
|
return -1;
|
|
}
|
|
|
|
Py_INCREF(st->sha512_type);
|
|
if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha512_type) < 0) {
|
|
Py_DECREF(st->sha512_type);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static PyModuleDef_Slot _sha512_slots[] = {
|
|
{Py_mod_exec, _sha512_exec},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct PyModuleDef _sha512module = {
|
|
PyModuleDef_HEAD_INIT,
|
|
.m_name = "_sha512",
|
|
.m_size = sizeof(SHA512State),
|
|
.m_methods = SHA_functions,
|
|
.m_slots = _sha512_slots,
|
|
.m_traverse = _sha512_traverse,
|
|
.m_clear = _sha512_clear,
|
|
.m_free = _sha512_free
|
|
};
|
|
|
|
PyMODINIT_FUNC
|
|
PyInit__sha512(void)
|
|
{
|
|
return PyModuleDef_Init(&_sha512module);
|
|
}
|