mirror of
https://github.com/LongSoft/UEFITool.git
synced 2024-11-22 07:58:22 +08:00
934ce1f3f8
As the first step towards automated parsing, this change set replaces outdated BootGuard-related parsers with shiny new KaitaiStruct-based ones. It also does the following: - improves Intel FIT definitions by using the relevant specification - adds sha1, sha384, sha512 and sm3 digest implementations - updates LZMA SDK to v22.01 - moves GUIDs out of include files to prevent multiple instantiations - enforces C++11 - adds Kaitai-based parsers for Intel FIT, BootGuard v1 and BootGuard v2 structures - makes many small refactorings here, there and everywhere
313 lines
10 KiB
C
313 lines
10 KiB
C
/* sha512.c
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Copyright (c) 2022, Nikolaj Schlej. All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*/
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//
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// This implementations are based on LibTomCrypt that was released into
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// public domain by Tom St Denis.
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//
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#include "sha2.h"
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#include <stdint.h>
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#include <string.h>
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/* ulong64: 64-bit data type */
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#ifdef _MSC_VER
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#define CONST64(n) n ## ui64
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typedef unsigned __int64 ulong64;
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typedef __int64 long64;
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#else
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#define CONST64(n) n ## ULL
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typedef unsigned long long ulong64;
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typedef long long long64;
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#endif
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#define ROR64c(x, y) \
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( ((((x)&CONST64(0xFFFFFFFFFFFFFFFF))>>((ulong64)(y)&CONST64(63))) | \
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((x)<<(((ulong64)64-((y)&63))&63))) & CONST64(0xFFFFFFFFFFFFFFFF))
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#define LOAD64H(x, y) \
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do { x = (((ulong64)((y)[0] & 255))<<56)|(((ulong64)((y)[1] & 255))<<48) | \
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(((ulong64)((y)[2] & 255))<<40)|(((ulong64)((y)[3] & 255))<<32) | \
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(((ulong64)((y)[4] & 255))<<24)|(((ulong64)((y)[5] & 255))<<16) | \
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(((ulong64)((y)[6] & 255))<<8)|(((ulong64)((y)[7] & 255))); } while(0)
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#define STORE64H(x, y) \
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do { (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255); \
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(y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255); \
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(y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255); \
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(y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); } while(0)
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#ifndef MIN
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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#endif
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/* the K array */
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static const ulong64 K[80] = {
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CONST64(0x428a2f98d728ae22), CONST64(0x7137449123ef65cd),
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CONST64(0xb5c0fbcfec4d3b2f), CONST64(0xe9b5dba58189dbbc),
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CONST64(0x3956c25bf348b538), CONST64(0x59f111f1b605d019),
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CONST64(0x923f82a4af194f9b), CONST64(0xab1c5ed5da6d8118),
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CONST64(0xd807aa98a3030242), CONST64(0x12835b0145706fbe),
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CONST64(0x243185be4ee4b28c), CONST64(0x550c7dc3d5ffb4e2),
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CONST64(0x72be5d74f27b896f), CONST64(0x80deb1fe3b1696b1),
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CONST64(0x9bdc06a725c71235), CONST64(0xc19bf174cf692694),
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CONST64(0xe49b69c19ef14ad2), CONST64(0xefbe4786384f25e3),
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CONST64(0x0fc19dc68b8cd5b5), CONST64(0x240ca1cc77ac9c65),
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CONST64(0x2de92c6f592b0275), CONST64(0x4a7484aa6ea6e483),
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CONST64(0x5cb0a9dcbd41fbd4), CONST64(0x76f988da831153b5),
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CONST64(0x983e5152ee66dfab), CONST64(0xa831c66d2db43210),
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CONST64(0xb00327c898fb213f), CONST64(0xbf597fc7beef0ee4),
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CONST64(0xc6e00bf33da88fc2), CONST64(0xd5a79147930aa725),
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CONST64(0x06ca6351e003826f), CONST64(0x142929670a0e6e70),
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CONST64(0x27b70a8546d22ffc), CONST64(0x2e1b21385c26c926),
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CONST64(0x4d2c6dfc5ac42aed), CONST64(0x53380d139d95b3df),
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CONST64(0x650a73548baf63de), CONST64(0x766a0abb3c77b2a8),
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CONST64(0x81c2c92e47edaee6), CONST64(0x92722c851482353b),
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CONST64(0xa2bfe8a14cf10364), CONST64(0xa81a664bbc423001),
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CONST64(0xc24b8b70d0f89791), CONST64(0xc76c51a30654be30),
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CONST64(0xd192e819d6ef5218), CONST64(0xd69906245565a910),
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CONST64(0xf40e35855771202a), CONST64(0x106aa07032bbd1b8),
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CONST64(0x19a4c116b8d2d0c8), CONST64(0x1e376c085141ab53),
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CONST64(0x2748774cdf8eeb99), CONST64(0x34b0bcb5e19b48a8),
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CONST64(0x391c0cb3c5c95a63), CONST64(0x4ed8aa4ae3418acb),
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CONST64(0x5b9cca4f7763e373), CONST64(0x682e6ff3d6b2b8a3),
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CONST64(0x748f82ee5defb2fc), CONST64(0x78a5636f43172f60),
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CONST64(0x84c87814a1f0ab72), CONST64(0x8cc702081a6439ec),
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CONST64(0x90befffa23631e28), CONST64(0xa4506cebde82bde9),
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CONST64(0xbef9a3f7b2c67915), CONST64(0xc67178f2e372532b),
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CONST64(0xca273eceea26619c), CONST64(0xd186b8c721c0c207),
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CONST64(0xeada7dd6cde0eb1e), CONST64(0xf57d4f7fee6ed178),
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CONST64(0x06f067aa72176fba), CONST64(0x0a637dc5a2c898a6),
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CONST64(0x113f9804bef90dae), CONST64(0x1b710b35131c471b),
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CONST64(0x28db77f523047d84), CONST64(0x32caab7b40c72493),
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CONST64(0x3c9ebe0a15c9bebc), CONST64(0x431d67c49c100d4c),
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CONST64(0x4cc5d4becb3e42b6), CONST64(0x597f299cfc657e2a),
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CONST64(0x5fcb6fab3ad6faec), CONST64(0x6c44198c4a475817)
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};
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/* Various logical functions */
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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) ROR64c(x, n)
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#define R(x, n) (((x)&CONST64(0xFFFFFFFFFFFFFFFF))>>((ulong64)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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struct sha512_state {
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ulong64 length, state[8];
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unsigned long curlen;
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unsigned char buf[128];
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};
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/* compress 1024-bits */
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static int s_sha512_compress(struct sha512_state * md, const unsigned char *buf)
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{
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ulong64 S[8], W[80], t0, t1;
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int i;
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/* copy state into S */
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for (i = 0; i < 8; i++) {
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S[i] = md->state[i];
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}
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/* copy the state into 1024-bits into W[0..15] */
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for (i = 0; i < 16; i++) {
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LOAD64H(W[i], buf + (8*i));
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}
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/* fill W[16..79] */
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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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/* Compress */
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#define RND(a,b,c,d,e,f,g,h,i) \
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t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + 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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for (i = 0; i < 80; i += 8) {
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
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}
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/* feedback */
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for (i = 0; i < 8; i++) {
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md->state[i] = md->state[i] + S[i];
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}
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return 0;
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}
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static int sha512_init(struct sha512_state * md)
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{
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if (md == NULL) return -1;
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md->curlen = 0;
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md->length = 0;
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md->state[0] = CONST64(0x6a09e667f3bcc908);
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md->state[1] = CONST64(0xbb67ae8584caa73b);
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md->state[2] = CONST64(0x3c6ef372fe94f82b);
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md->state[3] = CONST64(0xa54ff53a5f1d36f1);
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md->state[4] = CONST64(0x510e527fade682d1);
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md->state[5] = CONST64(0x9b05688c2b3e6c1f);
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md->state[6] = CONST64(0x1f83d9abfb41bd6b);
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md->state[7] = CONST64(0x5be0cd19137e2179);
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return 0;
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}
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static int sha512_process(struct sha512_state * md, const unsigned char *in, unsigned long inlen)
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{
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unsigned long n;
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int err;
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if (md == NULL) return -1;
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if (in == NULL) return -1;
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if (md->curlen > sizeof(md->buf)) {
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return -1;
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}
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if (((md->length + inlen * 8) < md->length)
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|| ((inlen * 8) < inlen)) {
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return -1;
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}
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while (inlen > 0) {
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if (md->curlen == 0 && inlen >= 128) {
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if ((err = s_sha512_compress(md, in)) != 0) {
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return err;
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}
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md->length += 128 * 8;
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in += 128;
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inlen -= 128;
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} else {
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n = MIN(inlen, (128 - md->curlen));
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memcpy(md->buf + md->curlen, in, (size_t)n);
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md->curlen += n;
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in += n;
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inlen -= n;
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if (md->curlen == 128) {
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if ((err = s_sha512_compress(md, md->buf)) != 0) {
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return err;
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}
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md->length += 8 * 128;
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md->curlen = 0;
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}
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}
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}
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return 0;
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}
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static int sha512_done(struct sha512_state * md, unsigned char *out)
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{
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int i;
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if (md == NULL) return -1;
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if (out == NULL) return -1;
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if (md->curlen >= sizeof(md->buf)) {
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return -1;
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}
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/* increase the length of the message */
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md->length += md->curlen * CONST64(8);
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/* append the '1' bit */
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md->buf[md->curlen++] = (unsigned char)0x80;
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/* if the length is currently above 112 bytes we append zeros
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* then compress. Then we can fall back to padding zeros and length
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* encoding like normal.
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*/
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if (md->curlen > 112) {
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while (md->curlen < 128) {
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md->buf[md->curlen++] = (unsigned char)0;
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}
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s_sha512_compress(md, md->buf);
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md->curlen = 0;
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}
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/* pad upto 120 bytes of zeroes
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* note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash
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* > 2^64 bits of data... :-)
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*/
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while (md->curlen < 120) {
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md->buf[md->curlen++] = (unsigned char)0;
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}
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/* store length */
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STORE64H(md->length, md->buf+120);
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s_sha512_compress(md, md->buf);
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/* copy output */
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for (i = 0; i < 8; i++) {
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STORE64H(md->state[i], out+(8*i));
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}
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return 0;
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}
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static int sha384_init(struct sha512_state * md)
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{
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if (md == NULL) return -1;
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md->curlen = 0;
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md->length = 0;
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md->state[0] = CONST64(0xcbbb9d5dc1059ed8);
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md->state[1] = CONST64(0x629a292a367cd507);
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md->state[2] = CONST64(0x9159015a3070dd17);
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md->state[3] = CONST64(0x152fecd8f70e5939);
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md->state[4] = CONST64(0x67332667ffc00b31);
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md->state[5] = CONST64(0x8eb44a8768581511);
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md->state[6] = CONST64(0xdb0c2e0d64f98fa7);
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md->state[7] = CONST64(0x47b5481dbefa4fa4);
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return 0;
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}
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static int sha384_done(struct sha512_state * md, unsigned char *out)
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{
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unsigned char buf[64];
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if (md == NULL) return -1;
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if (out == NULL) return -1;;
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if (md->curlen >= sizeof(md->buf)) {
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return -1;
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}
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sha512_done(md, buf);
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memcpy(out, buf, 48);
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return 0;
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}
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void sha384(const void *in, unsigned long inlen, void* out)
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{
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struct sha512_state ctx;
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sha384_init(&ctx);
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sha512_process(&ctx, (const unsigned char*)in, inlen);
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sha384_done(&ctx, (unsigned char *)out);
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}
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void sha512(const void *in, unsigned long inlen, void* out)
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{
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struct sha512_state ctx;
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sha512_init(&ctx);
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sha512_process(&ctx, (const unsigned char*)in, inlen);
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sha512_done(&ctx, (unsigned char *)out);
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}
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