aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/lib/libavb/avb_sha512.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/lib/libavb/avb_sha512.c')
-rw-r--r--roms/u-boot/lib/libavb/avb_sha512.c361
1 files changed, 361 insertions, 0 deletions
diff --git a/roms/u-boot/lib/libavb/avb_sha512.c b/roms/u-boot/lib/libavb/avb_sha512.c
new file mode 100644
index 000000000..b19054fc7
--- /dev/null
+++ b/roms/u-boot/lib/libavb/avb_sha512.c
@@ -0,0 +1,361 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
+ * All rights reserved.
+ *
+ * FIPS 180-2 SHA-224/256/384/512 implementation
+ * Last update: 02/02/2007
+ * Issue date: 04/30/2005
+ */
+
+#include "avb_sha.h"
+
+#define SHFR(x, n) (x >> n)
+#define ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))
+#define ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n)))
+#define CH(x, y, z) ((x & y) ^ (~x & z))
+#define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
+
+#define SHA512_F1(x) (ROTR(x, 28) ^ ROTR(x, 34) ^ ROTR(x, 39))
+#define SHA512_F2(x) (ROTR(x, 14) ^ ROTR(x, 18) ^ ROTR(x, 41))
+#define SHA512_F3(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHFR(x, 7))
+#define SHA512_F4(x) (ROTR(x, 19) ^ ROTR(x, 61) ^ SHFR(x, 6))
+
+#define UNPACK32(x, str) \
+ { \
+ *((str) + 3) = (uint8_t)((x)); \
+ *((str) + 2) = (uint8_t)((x) >> 8); \
+ *((str) + 1) = (uint8_t)((x) >> 16); \
+ *((str) + 0) = (uint8_t)((x) >> 24); \
+ }
+
+#define UNPACK64(x, str) \
+ { \
+ *((str) + 7) = (uint8_t)x; \
+ *((str) + 6) = (uint8_t)((uint64_t)x >> 8); \
+ *((str) + 5) = (uint8_t)((uint64_t)x >> 16); \
+ *((str) + 4) = (uint8_t)((uint64_t)x >> 24); \
+ *((str) + 3) = (uint8_t)((uint64_t)x >> 32); \
+ *((str) + 2) = (uint8_t)((uint64_t)x >> 40); \
+ *((str) + 1) = (uint8_t)((uint64_t)x >> 48); \
+ *((str) + 0) = (uint8_t)((uint64_t)x >> 56); \
+ }
+
+#define PACK64(str, x) \
+ { \
+ *(x) = \
+ ((uint64_t) * ((str) + 7)) | ((uint64_t) * ((str) + 6) << 8) | \
+ ((uint64_t) * ((str) + 5) << 16) | ((uint64_t) * ((str) + 4) << 24) | \
+ ((uint64_t) * ((str) + 3) << 32) | ((uint64_t) * ((str) + 2) << 40) | \
+ ((uint64_t) * ((str) + 1) << 48) | ((uint64_t) * ((str) + 0) << 56); \
+ }
+
+/* Macros used for loops unrolling */
+
+#define SHA512_SCR(i) \
+ { w[i] = SHA512_F4(w[i - 2]) + w[i - 7] + SHA512_F3(w[i - 15]) + w[i - 16]; }
+
+#define SHA512_EXP(a, b, c, d, e, f, g, h, j) \
+ { \
+ t1 = wv[h] + SHA512_F2(wv[e]) + CH(wv[e], wv[f], wv[g]) + sha512_k[j] + \
+ w[j]; \
+ t2 = SHA512_F1(wv[a]) + MAJ(wv[a], wv[b], wv[c]); \
+ wv[d] += t1; \
+ wv[h] = t1 + t2; \
+ }
+
+static const uint64_t sha512_h0[8] = {0x6a09e667f3bcc908ULL,
+ 0xbb67ae8584caa73bULL,
+ 0x3c6ef372fe94f82bULL,
+ 0xa54ff53a5f1d36f1ULL,
+ 0x510e527fade682d1ULL,
+ 0x9b05688c2b3e6c1fULL,
+ 0x1f83d9abfb41bd6bULL,
+ 0x5be0cd19137e2179ULL};
+
+static const uint64_t sha512_k[80] = {
+ 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
+ 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
+ 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
+ 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
+ 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
+ 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
+ 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
+ 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
+ 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
+ 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
+ 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
+ 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
+ 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
+ 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
+ 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
+ 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
+ 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
+ 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
+ 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
+ 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
+ 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
+ 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
+ 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
+ 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
+ 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
+ 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
+ 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL};
+
+/* SHA-512 implementation */
+
+void avb_sha512_init(AvbSHA512Ctx* ctx) {
+#ifdef UNROLL_LOOPS_SHA512
+ ctx->h[0] = sha512_h0[0];
+ ctx->h[1] = sha512_h0[1];
+ ctx->h[2] = sha512_h0[2];
+ ctx->h[3] = sha512_h0[3];
+ ctx->h[4] = sha512_h0[4];
+ ctx->h[5] = sha512_h0[5];
+ ctx->h[6] = sha512_h0[6];
+ ctx->h[7] = sha512_h0[7];
+#else
+ int i;
+
+ for (i = 0; i < 8; i++)
+ ctx->h[i] = sha512_h0[i];
+#endif /* UNROLL_LOOPS_SHA512 */
+
+ ctx->len = 0;
+ ctx->tot_len = 0;
+}
+
+static void SHA512_transform(AvbSHA512Ctx* ctx,
+ const uint8_t* message,
+ size_t block_nb) {
+ uint64_t w[80];
+ uint64_t wv[8];
+ uint64_t t1, t2;
+ const uint8_t* sub_block;
+ size_t i, j;
+
+ for (i = 0; i < block_nb; i++) {
+ sub_block = message + (i << 7);
+
+#ifdef UNROLL_LOOPS_SHA512
+ PACK64(&sub_block[0], &w[0]);
+ PACK64(&sub_block[8], &w[1]);
+ PACK64(&sub_block[16], &w[2]);
+ PACK64(&sub_block[24], &w[3]);
+ PACK64(&sub_block[32], &w[4]);
+ PACK64(&sub_block[40], &w[5]);
+ PACK64(&sub_block[48], &w[6]);
+ PACK64(&sub_block[56], &w[7]);
+ PACK64(&sub_block[64], &w[8]);
+ PACK64(&sub_block[72], &w[9]);
+ PACK64(&sub_block[80], &w[10]);
+ PACK64(&sub_block[88], &w[11]);
+ PACK64(&sub_block[96], &w[12]);
+ PACK64(&sub_block[104], &w[13]);
+ PACK64(&sub_block[112], &w[14]);
+ PACK64(&sub_block[120], &w[15]);
+
+ SHA512_SCR(16);
+ SHA512_SCR(17);
+ SHA512_SCR(18);
+ SHA512_SCR(19);
+ SHA512_SCR(20);
+ SHA512_SCR(21);
+ SHA512_SCR(22);
+ SHA512_SCR(23);
+ SHA512_SCR(24);
+ SHA512_SCR(25);
+ SHA512_SCR(26);
+ SHA512_SCR(27);
+ SHA512_SCR(28);
+ SHA512_SCR(29);
+ SHA512_SCR(30);
+ SHA512_SCR(31);
+ SHA512_SCR(32);
+ SHA512_SCR(33);
+ SHA512_SCR(34);
+ SHA512_SCR(35);
+ SHA512_SCR(36);
+ SHA512_SCR(37);
+ SHA512_SCR(38);
+ SHA512_SCR(39);
+ SHA512_SCR(40);
+ SHA512_SCR(41);
+ SHA512_SCR(42);
+ SHA512_SCR(43);
+ SHA512_SCR(44);
+ SHA512_SCR(45);
+ SHA512_SCR(46);
+ SHA512_SCR(47);
+ SHA512_SCR(48);
+ SHA512_SCR(49);
+ SHA512_SCR(50);
+ SHA512_SCR(51);
+ SHA512_SCR(52);
+ SHA512_SCR(53);
+ SHA512_SCR(54);
+ SHA512_SCR(55);
+ SHA512_SCR(56);
+ SHA512_SCR(57);
+ SHA512_SCR(58);
+ SHA512_SCR(59);
+ SHA512_SCR(60);
+ SHA512_SCR(61);
+ SHA512_SCR(62);
+ SHA512_SCR(63);
+ SHA512_SCR(64);
+ SHA512_SCR(65);
+ SHA512_SCR(66);
+ SHA512_SCR(67);
+ SHA512_SCR(68);
+ SHA512_SCR(69);
+ SHA512_SCR(70);
+ SHA512_SCR(71);
+ SHA512_SCR(72);
+ SHA512_SCR(73);
+ SHA512_SCR(74);
+ SHA512_SCR(75);
+ SHA512_SCR(76);
+ SHA512_SCR(77);
+ SHA512_SCR(78);
+ SHA512_SCR(79);
+
+ wv[0] = ctx->h[0];
+ wv[1] = ctx->h[1];
+ wv[2] = ctx->h[2];
+ wv[3] = ctx->h[3];
+ wv[4] = ctx->h[4];
+ wv[5] = ctx->h[5];
+ wv[6] = ctx->h[6];
+ wv[7] = ctx->h[7];
+
+ j = 0;
+
+ do {
+ SHA512_EXP(0, 1, 2, 3, 4, 5, 6, 7, j);
+ j++;
+ SHA512_EXP(7, 0, 1, 2, 3, 4, 5, 6, j);
+ j++;
+ SHA512_EXP(6, 7, 0, 1, 2, 3, 4, 5, j);
+ j++;
+ SHA512_EXP(5, 6, 7, 0, 1, 2, 3, 4, j);
+ j++;
+ SHA512_EXP(4, 5, 6, 7, 0, 1, 2, 3, j);
+ j++;
+ SHA512_EXP(3, 4, 5, 6, 7, 0, 1, 2, j);
+ j++;
+ SHA512_EXP(2, 3, 4, 5, 6, 7, 0, 1, j);
+ j++;
+ SHA512_EXP(1, 2, 3, 4, 5, 6, 7, 0, j);
+ j++;
+ } while (j < 80);
+
+ ctx->h[0] += wv[0];
+ ctx->h[1] += wv[1];
+ ctx->h[2] += wv[2];
+ ctx->h[3] += wv[3];
+ ctx->h[4] += wv[4];
+ ctx->h[5] += wv[5];
+ ctx->h[6] += wv[6];
+ ctx->h[7] += wv[7];
+#else
+ for (j = 0; j < 16; j++) {
+ PACK64(&sub_block[j << 3], &w[j]);
+ }
+
+ for (j = 16; j < 80; j++) {
+ SHA512_SCR(j);
+ }
+
+ for (j = 0; j < 8; j++) {
+ wv[j] = ctx->h[j];
+ }
+
+ for (j = 0; j < 80; j++) {
+ t1 = wv[7] + SHA512_F2(wv[4]) + CH(wv[4], wv[5], wv[6]) + sha512_k[j] +
+ w[j];
+ t2 = SHA512_F1(wv[0]) + MAJ(wv[0], wv[1], wv[2]);
+ wv[7] = wv[6];
+ wv[6] = wv[5];
+ wv[5] = wv[4];
+ wv[4] = wv[3] + t1;
+ wv[3] = wv[2];
+ wv[2] = wv[1];
+ wv[1] = wv[0];
+ wv[0] = t1 + t2;
+ }
+
+ for (j = 0; j < 8; j++)
+ ctx->h[j] += wv[j];
+#endif /* UNROLL_LOOPS_SHA512 */
+ }
+}
+
+void avb_sha512_update(AvbSHA512Ctx* ctx, const uint8_t* data, size_t len) {
+ size_t block_nb;
+ size_t new_len, rem_len, tmp_len;
+ const uint8_t* shifted_data;
+
+ tmp_len = AVB_SHA512_BLOCK_SIZE - ctx->len;
+ rem_len = len < tmp_len ? len : tmp_len;
+
+ avb_memcpy(&ctx->block[ctx->len], data, rem_len);
+
+ if (ctx->len + len < AVB_SHA512_BLOCK_SIZE) {
+ ctx->len += len;
+ return;
+ }
+
+ new_len = len - rem_len;
+ block_nb = new_len / AVB_SHA512_BLOCK_SIZE;
+
+ shifted_data = data + rem_len;
+
+ SHA512_transform(ctx, ctx->block, 1);
+ SHA512_transform(ctx, shifted_data, block_nb);
+
+ rem_len = new_len % AVB_SHA512_BLOCK_SIZE;
+
+ avb_memcpy(ctx->block, &shifted_data[block_nb << 7], rem_len);
+
+ ctx->len = rem_len;
+ ctx->tot_len += (block_nb + 1) << 7;
+}
+
+uint8_t* avb_sha512_final(AvbSHA512Ctx* ctx) {
+ size_t block_nb;
+ size_t pm_len;
+ uint64_t len_b;
+
+#ifndef UNROLL_LOOPS_SHA512
+ size_t i;
+#endif
+
+ block_nb =
+ 1 + ((AVB_SHA512_BLOCK_SIZE - 17) < (ctx->len % AVB_SHA512_BLOCK_SIZE));
+
+ len_b = (ctx->tot_len + ctx->len) << 3;
+ pm_len = block_nb << 7;
+
+ avb_memset(ctx->block + ctx->len, 0, pm_len - ctx->len);
+ ctx->block[ctx->len] = 0x80;
+ UNPACK64(len_b, ctx->block + pm_len - 8);
+
+ SHA512_transform(ctx, ctx->block, block_nb);
+
+#ifdef UNROLL_LOOPS_SHA512
+ UNPACK64(ctx->h[0], &ctx->buf[0]);
+ UNPACK64(ctx->h[1], &ctx->buf[8]);
+ UNPACK64(ctx->h[2], &ctx->buf[16]);
+ UNPACK64(ctx->h[3], &ctx->buf[24]);
+ UNPACK64(ctx->h[4], &ctx->buf[32]);
+ UNPACK64(ctx->h[5], &ctx->buf[40]);
+ UNPACK64(ctx->h[6], &ctx->buf[48]);
+ UNPACK64(ctx->h[7], &ctx->buf[56]);
+#else
+ for (i = 0; i < 8; i++)
+ UNPACK64(ctx->h[i], &ctx->buf[i << 3]);
+#endif /* UNROLL_LOOPS_SHA512 */
+
+ return ctx->buf;
+}