/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://opensource.org/licenses/CDDL-1.0. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Based on Edon-R implementation for SUPERCOP, based on NIST API. * Copyright (c) 2009, 2010, Jørn Amundsen * Copyright (c) 2013 Saso Kiselkov, All rights reserved * Copyright (c) 2023 Tino Reichardt */ #include #include #include /* * We need 1196 byte stack for Q512() on i386 * - we define this pragma to make gcc happy */ #if defined(__GNUC__) && defined(_ILP32) #pragma GCC diagnostic ignored "-Wframe-larger-than=" #endif /* * Insert compiler memory barriers to reduce stack frame size. */ #define MEMORY_BARRIER asm volatile("" ::: "memory"); #if defined(_ZFS_BIG_ENDIAN) #define ld_swap64(s, d) (d = __builtin_bswap64(*(s))) #define st_swap64(s, d) (*(d) = __builtin_bswap64(s)) #else #define ld_swap64(s, d) (d = *(s)) #define st_swap64(s, d) (*(d) = s) #endif #define hashState512(x) ((x)->pipe->p512) /* rotate shortcuts */ #define rotl64(x, n) (((x) << (n)) | ((x) >> (64 - (n)))) /* EdonR512 initial double chaining pipe */ static const uint64_t i512p2[16] = { 0x8081828384858687ull, 0x88898a8b8c8d8e8full, 0x9091929394959697ull, 0x98999a9b9c9d9e9full, 0xa0a1a2a3a4a5a6a7ull, 0xa8a9aaabacadaeafull, 0xb0b1b2b3b4b5b6b7ull, 0xb8b9babbbcbdbebfull, 0xc0c1c2c3c4c5c6c7ull, 0xc8c9cacbcccdcecfull, 0xd0d1d2d3d4d5d6d7ull, 0xd8d9dadbdcdddedfull, 0xe0e1e2e3e4e5e6e7ull, 0xe8e9eaebecedeeefull, 0xf0f1f2f3f4f5f6f7ull, 0xf8f9fafbfcfdfeffull }; #define LS1_512(x0, x1, x2, x3, x4, x5, x6, x7) \ { \ MEMORY_BARRIER \ z1 = x0 + x4, z2 = x1 + x7; z5 = z1 + z2; \ s0 = 0xaaaaaaaaaaaaaaaaull + z5 + x2; \ s1 = rotl64(z5 + x3, 5); \ s2 = rotl64(z5 + x6, 15); z3 = x2 + x3; \ s5 = rotl64(z1 + z3 + x5, 40); z4 = x5 + x6; \ s6 = rotl64(z2 + z4 + x0, 50); z6 = z3 + z4; \ s3 = rotl64(z6 + x7, 22); \ s4 = rotl64(z6 + x1, 31); \ s7 = rotl64(z6 + x4, 59); \ } #define LS2_512(y0, y1, y2, y3, y4, y5, y6, y7) \ { \ z1 = y0 + y1, z2 = y2 + y5; z6 = z1 + z2; \ t0 = ~0xaaaaaaaaaaaaaaaaull + z6 + y7; \ t2 = rotl64(z6 + y3, 19); \ z3 = y3 + y4, z5 = z1 + z3; \ t1 = rotl64(z5 + y6, 10); \ t4 = rotl64(z5 + y5, 36); \ z4 = y6 + y7, z8 = z3 + z4; \ t3 = rotl64(z8 + y2, 29); \ t7 = rotl64(z8 + y0, 55); z7 = z2 + z4; \ t5 = rotl64(z7 + y4, 44); \ t6 = rotl64(z7 + y1, 48); \ } #define QEF_512(r0, r1, r2, r3, r4, r5, r6, r7) \ { \ z1 = s0 ^ s4, z5 = t0 ^ t1; \ r0 = (z1 ^ s1) + (z5 ^ t5); z8 = t6 ^ t7; \ r1 = (z1 ^ s7) + (t2 ^ z8); z3 = s2 ^ s3; \ r7 = (z3 ^ s5) + (t4 ^ z8); z7 = t3 ^ t4; \ r3 = (z3 ^ s4) + (t0 ^ z7); z4 = s5 ^ s6; \ r5 = (s3 ^ z4) + (z7 ^ t6); z6 = t2 ^ t5; \ r6 = (s2 ^ z4) + (z6 ^ t7); z2 = s1 ^ s7; \ r4 = (s0 ^ z2) + (t1 ^ z6); \ r2 = (z2 ^ s6) + (z5 ^ t3); \ } static inline size_t Q512(size_t bitlen, const uint64_t *data, uint64_t *p) { size_t bl; for (bl = bitlen; bl >= EdonR512_BLOCK_BITSIZE; bl -= EdonR512_BLOCK_BITSIZE, data += 16) { uint64_t q0, q1, q2, q3, q4, q5, q6, q7; uint64_t p0, p1, p2, p3, p4, p5, p6, p7; uint64_t s0, s1, s2, s3, s4, s5, s6, s7; uint64_t t0, t1, t2, t3, t4, t5, t6, t7; uint64_t z1, z2, z3, z4, z5, z6, z7, z8; #if defined(_ZFS_BIG_ENDIAN) uint64_t swp0, swp1, swp2, swp3, swp4, swp5, swp6, swp7, swp8, swp9, swp10, swp11, swp12, swp13, swp14, swp15; #define d(j) swp##j #define s64(j) ld_swap64((uint64_t *)data+j, swp##j) s64(0); s64(1); s64(2); s64(3); s64(4); s64(5); s64(6); s64(7); s64(8); s64(9); s64(10); s64(11); s64(12); s64(13); s64(14); s64(15); #else #define d(j) data[j] #endif /* First row of quasigroup e-transformations */ LS1_512(d(15), d(14), d(13), d(12), d(11), d(10), d(9), d(8)); LS2_512(d(0), d(1), d(2), d(3), d(4), d(5), d(6), d(7)); QEF_512(p0, p1, p2, p3, p4, p5, p6, p7); LS1_512(p0, p1, p2, p3, p4, p5, p6, p7); LS2_512(d(8), d(9), d(10), d(11), d(12), d(13), d(14), d(15)); QEF_512(q0, q1, q2, q3, q4, q5, q6, q7); /* Second row of quasigroup e-transformations */ LS1_512(p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]); LS2_512(p0, p1, p2, p3, p4, p5, p6, p7); QEF_512(p0, p1, p2, p3, p4, p5, p6, p7); LS1_512(p0, p1, p2, p3, p4, p5, p6, p7); LS2_512(q0, q1, q2, q3, q4, q5, q6, q7); QEF_512(q0, q1, q2, q3, q4, q5, q6, q7); /* Third row of quasigroup e-transformations */ LS1_512(p0, p1, p2, p3, p4, p5, p6, p7); LS2_512(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); QEF_512(p0, p1, p2, p3, p4, p5, p6, p7); LS1_512(q0, q1, q2, q3, q4, q5, q6, q7); LS2_512(p0, p1, p2, p3, p4, p5, p6, p7); QEF_512(q0, q1, q2, q3, q4, q5, q6, q7); /* Fourth row of quasigroup e-transformations */ LS1_512(d(7), d(6), d(5), d(4), d(3), d(2), d(1), d(0)); LS2_512(p0, p1, p2, p3, p4, p5, p6, p7); QEF_512(p0, p1, p2, p3, p4, p5, p6, p7); LS1_512(p0, p1, p2, p3, p4, p5, p6, p7); LS2_512(q0, q1, q2, q3, q4, q5, q6, q7); QEF_512(q0, q1, q2, q3, q4, q5, q6, q7); /* Edon-R tweak on the original SHA-3 Edon-R submission. */ p[0] ^= d(8) ^ p0; p[1] ^= d(9) ^ p1; p[2] ^= d(10) ^ p2; p[3] ^= d(11) ^ p3; p[4] ^= d(12) ^ p4; p[5] ^= d(13) ^ p5; p[6] ^= d(14) ^ p6; p[7] ^= d(15) ^ p7; p[8] ^= d(0) ^ q0; p[9] ^= d(1) ^ q1; p[10] ^= d(2) ^ q2; p[11] ^= d(3) ^ q3; p[12] ^= d(4) ^ q4; p[13] ^= d(5) ^ q5; p[14] ^= d(6) ^ q6; p[15] ^= d(7) ^ q7; } #undef s64 #undef d return (bitlen - bl); } void EdonRInit(EdonRState *state) { state->bits_processed = 0; state->unprocessed_bits = 0; memcpy(hashState512(state)->DoublePipe, i512p2, sizeof (i512p2)); } void EdonRUpdate(EdonRState *state, const uint8_t *data, size_t databitlen) { uint64_t *data64; size_t bits_processed; if (state->unprocessed_bits > 0) { /* LastBytes = databitlen / 8 */ int LastBytes = (int)databitlen >> 3; ASSERT(state->unprocessed_bits + databitlen <= EdonR512_BLOCK_SIZE * 8); memcpy(hashState512(state)->LastPart + (state->unprocessed_bits >> 3), data, LastBytes); state->unprocessed_bits += (int)databitlen; databitlen = state->unprocessed_bits; /* LINTED E_BAD_PTR_CAST_ALIGN */ data64 = (uint64_t *)hashState512(state)->LastPart; } else /* LINTED E_BAD_PTR_CAST_ALIGN */ data64 = (uint64_t *)data; bits_processed = Q512(databitlen, data64, hashState512(state)->DoublePipe); state->bits_processed += bits_processed; databitlen -= bits_processed; state->unprocessed_bits = (int)databitlen; if (databitlen > 0) { /* LastBytes = Ceil(databitlen / 8) */ int LastBytes = ((~(((-(int)databitlen) >> 3) & 0x03ff)) + 1) \ & 0x03ff; data64 += bits_processed >> 6; /* byte size update */ memmove(hashState512(state)->LastPart, data64, LastBytes); } } void EdonRFinal(EdonRState *state, uint8_t *hashval) { uint64_t *data64, num_bits; size_t databitlen; int LastByte, PadOnePosition; num_bits = state->bits_processed + state->unprocessed_bits; LastByte = (int)state->unprocessed_bits >> 3; PadOnePosition = 7 - (state->unprocessed_bits & 0x07); hashState512(state)->LastPart[LastByte] = (hashState512(state)->LastPart[LastByte] \ & (0xff << (PadOnePosition + 1))) ^ (0x01 << PadOnePosition); /* LINTED E_BAD_PTR_CAST_ALIGN */ data64 = (uint64_t *)hashState512(state)->LastPart; if (state->unprocessed_bits < 960) { memset((hashState512(state)->LastPart) + LastByte + 1, 0x00, EdonR512_BLOCK_SIZE - LastByte - 9); databitlen = EdonR512_BLOCK_SIZE * 8; #if defined(_ZFS_BIG_ENDIAN) st_swap64(num_bits, data64 + 15); #else data64[15] = num_bits; #endif } else { memset((hashState512(state)->LastPart) + LastByte + 1, 0x00, EdonR512_BLOCK_SIZE * 2 - LastByte - 9); databitlen = EdonR512_BLOCK_SIZE * 16; #if defined(_ZFS_BIG_ENDIAN) st_swap64(num_bits, data64 + 31); #else data64[31] = num_bits; #endif } state->bits_processed += Q512(databitlen, data64, hashState512(state)->DoublePipe); #if defined(_ZFS_BIG_ENDIAN) data64 = (uint64_t *)hashval; uint64_t *s64 = hashState512(state)->DoublePipe + 8; int j; for (j = 0; j < EdonR512_DIGEST_SIZE >> 3; j++) st_swap64(s64[j], data64 + j); #else memcpy(hashval, hashState512(state)->DoublePipe + 8, EdonR512_DIGEST_SIZE); #endif } void EdonRHash(const uint8_t *data, size_t databitlen, uint8_t *hashval) { EdonRState state; EdonRInit(&state); EdonRUpdate(&state, data, databitlen); EdonRFinal(&state, hashval); } #ifdef _KERNEL EXPORT_SYMBOL(EdonRInit); EXPORT_SYMBOL(EdonRUpdate); EXPORT_SYMBOL(EdonRHash); EXPORT_SYMBOL(EdonRFinal); #endif