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9939049085
Now that all sm3_base users have been converted to use the API partial block handling, remove the partial block helpers as well as the lib/crypto functions. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
185 lines
6.5 KiB
C
185 lines
6.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SM3 secure hash, as specified by OSCCA GM/T 0004-2012 SM3 and described
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* at https://datatracker.ietf.org/doc/html/draft-sca-cfrg-sm3-02
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*
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* Copyright (C) 2017 ARM Limited or its affiliates.
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* Copyright (C) 2017 Gilad Ben-Yossef <gilad@benyossef.com>
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* Copyright (C) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
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*/
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#include <crypto/sm3.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/unaligned.h>
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static const u32 ____cacheline_aligned K[64] = {
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0x79cc4519, 0xf3988a32, 0xe7311465, 0xce6228cb,
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0x9cc45197, 0x3988a32f, 0x7311465e, 0xe6228cbc,
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0xcc451979, 0x988a32f3, 0x311465e7, 0x6228cbce,
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0xc451979c, 0x88a32f39, 0x11465e73, 0x228cbce6,
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0x9d8a7a87, 0x3b14f50f, 0x7629ea1e, 0xec53d43c,
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0xd8a7a879, 0xb14f50f3, 0x629ea1e7, 0xc53d43ce,
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0x8a7a879d, 0x14f50f3b, 0x29ea1e76, 0x53d43cec,
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0xa7a879d8, 0x4f50f3b1, 0x9ea1e762, 0x3d43cec5,
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0x7a879d8a, 0xf50f3b14, 0xea1e7629, 0xd43cec53,
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0xa879d8a7, 0x50f3b14f, 0xa1e7629e, 0x43cec53d,
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0x879d8a7a, 0x0f3b14f5, 0x1e7629ea, 0x3cec53d4,
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0x79d8a7a8, 0xf3b14f50, 0xe7629ea1, 0xcec53d43,
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0x9d8a7a87, 0x3b14f50f, 0x7629ea1e, 0xec53d43c,
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0xd8a7a879, 0xb14f50f3, 0x629ea1e7, 0xc53d43ce,
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0x8a7a879d, 0x14f50f3b, 0x29ea1e76, 0x53d43cec,
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0xa7a879d8, 0x4f50f3b1, 0x9ea1e762, 0x3d43cec5
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};
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/*
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* Transform the message X which consists of 16 32-bit-words. See
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* GM/T 004-2012 for details.
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*/
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#define R(i, a, b, c, d, e, f, g, h, t, w1, w2) \
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do { \
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ss1 = rol32((rol32((a), 12) + (e) + (t)), 7); \
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ss2 = ss1 ^ rol32((a), 12); \
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d += FF ## i(a, b, c) + ss2 + ((w1) ^ (w2)); \
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h += GG ## i(e, f, g) + ss1 + (w1); \
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b = rol32((b), 9); \
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f = rol32((f), 19); \
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h = P0((h)); \
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} while (0)
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#define R1(a, b, c, d, e, f, g, h, t, w1, w2) \
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R(1, a, b, c, d, e, f, g, h, t, w1, w2)
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#define R2(a, b, c, d, e, f, g, h, t, w1, w2) \
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R(2, a, b, c, d, e, f, g, h, t, w1, w2)
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#define FF1(x, y, z) (x ^ y ^ z)
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#define FF2(x, y, z) ((x & y) | (x & z) | (y & z))
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#define GG1(x, y, z) FF1(x, y, z)
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#define GG2(x, y, z) ((x & y) | (~x & z))
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/* Message expansion */
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#define P0(x) ((x) ^ rol32((x), 9) ^ rol32((x), 17))
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#define P1(x) ((x) ^ rol32((x), 15) ^ rol32((x), 23))
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#define I(i) (W[i] = get_unaligned_be32(data + i * 4))
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#define W1(i) (W[i & 0x0f])
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#define W2(i) (W[i & 0x0f] = \
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P1(W[i & 0x0f] \
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^ W[(i-9) & 0x0f] \
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^ rol32(W[(i-3) & 0x0f], 15)) \
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^ rol32(W[(i-13) & 0x0f], 7) \
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^ W[(i-6) & 0x0f])
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static void sm3_transform(struct sm3_state *sctx, u8 const *data, u32 W[16])
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{
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u32 a, b, c, d, e, f, g, h, ss1, ss2;
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a = sctx->state[0];
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b = sctx->state[1];
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c = sctx->state[2];
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d = sctx->state[3];
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e = sctx->state[4];
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f = sctx->state[5];
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g = sctx->state[6];
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h = sctx->state[7];
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R1(a, b, c, d, e, f, g, h, K[0], I(0), I(4));
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R1(d, a, b, c, h, e, f, g, K[1], I(1), I(5));
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R1(c, d, a, b, g, h, e, f, K[2], I(2), I(6));
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R1(b, c, d, a, f, g, h, e, K[3], I(3), I(7));
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R1(a, b, c, d, e, f, g, h, K[4], W1(4), I(8));
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R1(d, a, b, c, h, e, f, g, K[5], W1(5), I(9));
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R1(c, d, a, b, g, h, e, f, K[6], W1(6), I(10));
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R1(b, c, d, a, f, g, h, e, K[7], W1(7), I(11));
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R1(a, b, c, d, e, f, g, h, K[8], W1(8), I(12));
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R1(d, a, b, c, h, e, f, g, K[9], W1(9), I(13));
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R1(c, d, a, b, g, h, e, f, K[10], W1(10), I(14));
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R1(b, c, d, a, f, g, h, e, K[11], W1(11), I(15));
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R1(a, b, c, d, e, f, g, h, K[12], W1(12), W2(16));
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R1(d, a, b, c, h, e, f, g, K[13], W1(13), W2(17));
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R1(c, d, a, b, g, h, e, f, K[14], W1(14), W2(18));
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R1(b, c, d, a, f, g, h, e, K[15], W1(15), W2(19));
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R2(a, b, c, d, e, f, g, h, K[16], W1(16), W2(20));
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R2(d, a, b, c, h, e, f, g, K[17], W1(17), W2(21));
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R2(c, d, a, b, g, h, e, f, K[18], W1(18), W2(22));
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R2(b, c, d, a, f, g, h, e, K[19], W1(19), W2(23));
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R2(a, b, c, d, e, f, g, h, K[20], W1(20), W2(24));
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R2(d, a, b, c, h, e, f, g, K[21], W1(21), W2(25));
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R2(c, d, a, b, g, h, e, f, K[22], W1(22), W2(26));
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R2(b, c, d, a, f, g, h, e, K[23], W1(23), W2(27));
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R2(a, b, c, d, e, f, g, h, K[24], W1(24), W2(28));
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R2(d, a, b, c, h, e, f, g, K[25], W1(25), W2(29));
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R2(c, d, a, b, g, h, e, f, K[26], W1(26), W2(30));
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R2(b, c, d, a, f, g, h, e, K[27], W1(27), W2(31));
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R2(a, b, c, d, e, f, g, h, K[28], W1(28), W2(32));
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R2(d, a, b, c, h, e, f, g, K[29], W1(29), W2(33));
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R2(c, d, a, b, g, h, e, f, K[30], W1(30), W2(34));
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R2(b, c, d, a, f, g, h, e, K[31], W1(31), W2(35));
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R2(a, b, c, d, e, f, g, h, K[32], W1(32), W2(36));
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R2(d, a, b, c, h, e, f, g, K[33], W1(33), W2(37));
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R2(c, d, a, b, g, h, e, f, K[34], W1(34), W2(38));
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R2(b, c, d, a, f, g, h, e, K[35], W1(35), W2(39));
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R2(a, b, c, d, e, f, g, h, K[36], W1(36), W2(40));
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R2(d, a, b, c, h, e, f, g, K[37], W1(37), W2(41));
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R2(c, d, a, b, g, h, e, f, K[38], W1(38), W2(42));
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R2(b, c, d, a, f, g, h, e, K[39], W1(39), W2(43));
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R2(a, b, c, d, e, f, g, h, K[40], W1(40), W2(44));
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R2(d, a, b, c, h, e, f, g, K[41], W1(41), W2(45));
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R2(c, d, a, b, g, h, e, f, K[42], W1(42), W2(46));
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R2(b, c, d, a, f, g, h, e, K[43], W1(43), W2(47));
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R2(a, b, c, d, e, f, g, h, K[44], W1(44), W2(48));
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R2(d, a, b, c, h, e, f, g, K[45], W1(45), W2(49));
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R2(c, d, a, b, g, h, e, f, K[46], W1(46), W2(50));
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R2(b, c, d, a, f, g, h, e, K[47], W1(47), W2(51));
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R2(a, b, c, d, e, f, g, h, K[48], W1(48), W2(52));
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R2(d, a, b, c, h, e, f, g, K[49], W1(49), W2(53));
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R2(c, d, a, b, g, h, e, f, K[50], W1(50), W2(54));
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R2(b, c, d, a, f, g, h, e, K[51], W1(51), W2(55));
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R2(a, b, c, d, e, f, g, h, K[52], W1(52), W2(56));
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R2(d, a, b, c, h, e, f, g, K[53], W1(53), W2(57));
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R2(c, d, a, b, g, h, e, f, K[54], W1(54), W2(58));
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R2(b, c, d, a, f, g, h, e, K[55], W1(55), W2(59));
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R2(a, b, c, d, e, f, g, h, K[56], W1(56), W2(60));
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R2(d, a, b, c, h, e, f, g, K[57], W1(57), W2(61));
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R2(c, d, a, b, g, h, e, f, K[58], W1(58), W2(62));
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R2(b, c, d, a, f, g, h, e, K[59], W1(59), W2(63));
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R2(a, b, c, d, e, f, g, h, K[60], W1(60), W2(64));
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R2(d, a, b, c, h, e, f, g, K[61], W1(61), W2(65));
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R2(c, d, a, b, g, h, e, f, K[62], W1(62), W2(66));
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R2(b, c, d, a, f, g, h, e, K[63], W1(63), W2(67));
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sctx->state[0] ^= a;
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sctx->state[1] ^= b;
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sctx->state[2] ^= c;
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sctx->state[3] ^= d;
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sctx->state[4] ^= e;
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sctx->state[5] ^= f;
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sctx->state[6] ^= g;
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sctx->state[7] ^= h;
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}
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#undef R
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#undef R1
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#undef R2
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#undef I
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#undef W1
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#undef W2
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void sm3_block_generic(struct sm3_state *sctx, u8 const *data, int blocks)
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{
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u32 W[16];
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do {
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sm3_transform(sctx, data, W);
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data += SM3_BLOCK_SIZE;
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} while (--blocks);
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memzero_explicit(W, sizeof(W));
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}
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EXPORT_SYMBOL_GPL(sm3_block_generic);
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MODULE_DESCRIPTION("Generic SM3 library");
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MODULE_LICENSE("GPL v2");
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