mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-19 22:59:00 +00:00
Loader: Use HW-acceleration for SHA256
This commit is contained in:
Michael Scire
parent
e58927a8ab
commit
dd4993dfda
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@ -36,7 +36,7 @@ Result NroUtils::LoadNro(Registration::Process *target_proc, Handle process_h, u
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unsigned int i;
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Result rc;
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u8 nro_hash[0x20];
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SHA256_CTX sha_ctx;
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struct sha256_state sha_ctx;
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/* Ensure there is an available NRO slot. */
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if (std::all_of(target_proc->nro_infos.begin(), target_proc->nro_infos.end(), std::mem_fn(&Registration::NroInfo::in_use))) {
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return 0x6E09;
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@ -78,7 +78,8 @@ Result NroUtils::LoadNro(Registration::Process *target_proc, Handle process_h, u
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sha256_init(&sha_ctx);
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sha256_update(&sha_ctx, (u8 *)nro, nro->nro_size);
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sha256_final(&sha_ctx, nro_hash);
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sha256_finalize(&sha_ctx);
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sha256_finish(&sha_ctx, nro_hash);
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if (!Registration::IsNroHashPresent(target_proc->index, nro_hash)) {
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rc = 0x6C09;
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@ -199,6 +199,7 @@ Result NsoUtils::CalculateNsoLoadExtents(u32 addspace_type, u32 args_size, NsoLo
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}
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Result NsoUtils::LoadNsoSegment(u64 title_id, unsigned int index, unsigned int segment, FILE *f_nso, u8 *map_base, u8 *map_end) {
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bool is_compressed = ((g_nso_headers[index].flags >> segment) & 1) != 0;
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bool check_hash = ((g_nso_headers[index].flags >> (segment + 3)) & 1) != 0;
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@ -230,10 +231,11 @@ Result NsoUtils::LoadNsoSegment(u64 title_id, unsigned int index, unsigned int s
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if (check_hash) {
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u8 hash[0x20] = {0};
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SHA256_CTX sha_ctx;
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struct sha256_state sha_ctx;
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sha256_init(&sha_ctx);
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sha256_update(&sha_ctx, dst_addr, out_size);
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sha256_final(&sha_ctx, hash);
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sha256_finalize(&sha_ctx);
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sha256_finish(&sha_ctx, hash);
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if (std::memcmp(g_nso_headers[index].section_hashes[segment], hash, sizeof(hash))) {
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return 0xA09;
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@ -1,158 +1,113 @@
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/*********************************************************************
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* Filename: sha256.c
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Implementation of the SHA-256 hashing algorithm.
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SHA-256 is one of the three algorithms in the SHA2
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specification. The others, SHA-384 and SHA-512, are not
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offered in this implementation.
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Algorithm specification can be found here:
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* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf
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This implementation uses little endian byte order.
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*********************************************************************/
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/* Based on linux source code */
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/*
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* sha256_base.h - core logic for SHA-256 implementations
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*
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* Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*************************** HEADER FILES ***************************/
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#include <stdlib.h>
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#include <memory.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <string.h>
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#include "sha256.h"
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/****************************** MACROS ******************************/
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#define ROTLEFT(a,b) (((a) << (b)) | ((a) >> (32-(b))))
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#define ROTRIGHT(a,b) (((a) >> (b)) | ((a) << (32-(b))))
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#define CH(x,y,z) (((x) & (y)) ^ (~(x) & (z)))
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#define MAJ(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
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#define EP0(x) (ROTRIGHT(x,2) ^ ROTRIGHT(x,13) ^ ROTRIGHT(x,22))
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#define EP1(x) (ROTRIGHT(x,6) ^ ROTRIGHT(x,11) ^ ROTRIGHT(x,25))
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#define SIG0(x) (ROTRIGHT(x,7) ^ ROTRIGHT(x,18) ^ ((x) >> 3))
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#define SIG1(x) (ROTRIGHT(x,17) ^ ROTRIGHT(x,19) ^ ((x) >> 10))
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void sha256_block_data_order (uint32_t *ctx, const void *in, size_t num);
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/**************************** VARIABLES *****************************/
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static const WORD k[64] = {
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0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,
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0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,
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0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,
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0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,
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0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,
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0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,0xd192e819,0xd6990624,0xf40e3585,0x106aa070,
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0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,
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0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
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};
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/*********************** FUNCTION DEFINITIONS ***********************/
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void sha256_transform(SHA256_CTX *ctx, const BYTE data[])
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int sha256_init(struct sha256_state *sctx)
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{
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WORD a, b, c, d, e, f, g, h, i, j, t1, t2, m[64];
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sctx->state[0] = SHA256_H0;
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sctx->state[1] = SHA256_H1;
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sctx->state[2] = SHA256_H2;
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sctx->state[3] = SHA256_H3;
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sctx->state[4] = SHA256_H4;
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sctx->state[5] = SHA256_H5;
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sctx->state[6] = SHA256_H6;
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sctx->state[7] = SHA256_H7;
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sctx->count = 0;
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for (i = 0, j = 0; i < 16; ++i, j += 4)
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m[i] = (data[j] << 24) | (data[j + 1] << 16) | (data[j + 2] << 8) | (data[j + 3]);
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for ( ; i < 64; ++i)
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m[i] = SIG1(m[i - 2]) + m[i - 7] + SIG0(m[i - 15]) + m[i - 16];
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a = ctx->state[0];
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b = ctx->state[1];
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c = ctx->state[2];
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d = ctx->state[3];
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e = ctx->state[4];
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f = ctx->state[5];
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g = ctx->state[6];
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h = ctx->state[7];
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for (i = 0; i < 64; ++i) {
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t1 = h + EP1(e) + CH(e,f,g) + k[i] + m[i];
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t2 = EP0(a) + MAJ(a,b,c);
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h = g;
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g = f;
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f = e;
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e = d + t1;
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d = c;
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c = b;
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b = a;
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a = t1 + t2;
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}
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ctx->state[0] += a;
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ctx->state[1] += b;
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ctx->state[2] += c;
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ctx->state[3] += d;
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ctx->state[4] += e;
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ctx->state[5] += f;
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ctx->state[6] += g;
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ctx->state[7] += h;
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return 0;
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}
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void sha256_init(SHA256_CTX *ctx)
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int sha256_update(struct sha256_state *sctx,
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const void *data,
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size_t len)
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{
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ctx->datalen = 0;
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ctx->bitlen = 0;
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ctx->state[0] = 0x6a09e667;
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ctx->state[1] = 0xbb67ae85;
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ctx->state[2] = 0x3c6ef372;
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ctx->state[3] = 0xa54ff53a;
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ctx->state[4] = 0x510e527f;
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ctx->state[5] = 0x9b05688c;
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ctx->state[6] = 0x1f83d9ab;
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ctx->state[7] = 0x5be0cd19;
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const u8 *data8 = (const u8 *)data;
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unsigned int len32 = (unsigned int)len;
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unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
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sctx->count += len32;
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if (unlikely((partial + len32) >= SHA256_BLOCK_SIZE)) {
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int blocks;
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if (partial) {
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int p = SHA256_BLOCK_SIZE - partial;
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memcpy(sctx->buf + partial, data8, p);
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data8 += p;
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len32 -= p;
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sha256_block_data_order(sctx->state, sctx->buf, 1);
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}
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blocks = len32 / SHA256_BLOCK_SIZE;
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len32 %= SHA256_BLOCK_SIZE;
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if (blocks) {
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sha256_block_data_order(sctx->state, data8, blocks);
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data8 += blocks * SHA256_BLOCK_SIZE;
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}
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partial = 0;
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}
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if (len32)
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memcpy(sctx->buf + partial, data8, len32);
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return 0;
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}
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void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len)
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int sha256_finalize(struct sha256_state *sctx)
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{
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WORD i;
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const int bit_offset = SHA256_BLOCK_SIZE - sizeof(u64);
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u64 *bits = (u64 *)(sctx->buf + bit_offset);
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unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
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for (i = 0; i < len; ++i) {
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ctx->data[ctx->datalen] = data[i];
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ctx->datalen++;
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if (ctx->datalen == 64) {
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sha256_transform(ctx, ctx->data);
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ctx->bitlen += 512;
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ctx->datalen = 0;
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}
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sctx->buf[partial++] = 0x80;
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if (partial > bit_offset) {
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memset(sctx->buf + partial, 0x0, SHA256_BLOCK_SIZE - partial);
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partial = 0;
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sha256_block_data_order(sctx->state, sctx->buf, 1);
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}
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memset(sctx->buf + partial, 0x0, bit_offset - partial);
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*bits = __builtin_bswap64(sctx->count << 3);
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sha256_block_data_order(sctx->state, sctx->buf, 1);
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return 0;
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}
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void sha256_final(SHA256_CTX *ctx, BYTE hash[])
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int sha256_finish(struct sha256_state *sctx, void *out)
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{
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WORD i;
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unsigned int digest_size = 32;
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u32 *digest = (u32 *)out;
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int i;
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i = ctx->datalen;
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// Switch: misalignment shouldn't be a problem here...
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for (i = 0; digest_size > 0; i++, digest_size -= sizeof(u32))
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*digest++ = __builtin_bswap32(sctx->state[i]);
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// Pad whatever data is left in the buffer.
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if (ctx->datalen < 56) {
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ctx->data[i++] = 0x80;
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while (i < 56)
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ctx->data[i++] = 0x00;
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}
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else {
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ctx->data[i++] = 0x80;
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while (i < 64)
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ctx->data[i++] = 0x00;
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sha256_transform(ctx, ctx->data);
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memset(ctx->data, 0, 56);
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}
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// Append to the padding the total message's length in bits and transform.
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ctx->bitlen += ctx->datalen * 8;
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ctx->data[63] = ctx->bitlen;
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ctx->data[62] = ctx->bitlen >> 8;
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ctx->data[61] = ctx->bitlen >> 16;
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ctx->data[60] = ctx->bitlen >> 24;
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ctx->data[59] = ctx->bitlen >> 32;
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ctx->data[58] = ctx->bitlen >> 40;
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ctx->data[57] = ctx->bitlen >> 48;
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ctx->data[56] = ctx->bitlen >> 56;
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sha256_transform(ctx, ctx->data);
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// Since this implementation uses little endian byte ordering and SHA uses big endian,
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// reverse all the bytes when copying the final state to the output hash.
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for (i = 0; i < 4; ++i) {
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hash[i] = (ctx->state[0] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 4] = (ctx->state[1] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 8] = (ctx->state[2] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 12] = (ctx->state[3] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 16] = (ctx->state[4] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 20] = (ctx->state[5] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 24] = (ctx->state[6] >> (24 - i * 8)) & 0x000000ff;
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hash[i + 28] = (ctx->state[7] >> (24 - i * 8)) & 0x000000ff;
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}
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*sctx = (struct sha256_state){};
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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@ -1,41 +1,36 @@
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/*********************************************************************
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* Filename: sha256.h
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Defines the API for the corresponding SHA1 implementation.
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*********************************************************************/
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#pragma once
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#if defined (__cplusplus)
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/* Based on linux source code */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef SHA256_H
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#define SHA256_H
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/*************************** HEADER FILES ***************************/
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#include <stddef.h>
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#include <switch/types.h>
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/****************************** MACROS ******************************/
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#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
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#define SHA256_DIGEST_SIZE 32
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#define SHA256_BLOCK_SIZE 64
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/**************************** DATA TYPES ****************************/
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typedef unsigned char BYTE; // 8-bit byte
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typedef unsigned int WORD; // 32-bit word, change to "long" for 16-bit machines
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#define SHA256_H0 0x6a09e667UL
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#define SHA256_H1 0xbb67ae85UL
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#define SHA256_H2 0x3c6ef372UL
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#define SHA256_H3 0xa54ff53aUL
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#define SHA256_H4 0x510e527fUL
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#define SHA256_H5 0x9b05688cUL
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#define SHA256_H6 0x1f83d9abUL
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#define SHA256_H7 0x5be0cd19UL
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typedef struct {
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BYTE data[64];
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WORD datalen;
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unsigned long long bitlen;
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WORD state[8];
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} SHA256_CTX;
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struct sha256_state {
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u32 state[SHA256_DIGEST_SIZE / 4];
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u64 count;
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u8 buf[SHA256_BLOCK_SIZE];
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};
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/*********************** FUNCTION DECLARATIONS **********************/
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void sha256_init(SHA256_CTX *ctx);
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void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len);
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void sha256_final(SHA256_CTX *ctx, BYTE hash[]);
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int sha256_init(struct sha256_state *sctx);
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int sha256_update(struct sha256_state *sctx, const void *data, size_t len);
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int sha256_finalize(struct sha256_state *sctx);
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int sha256_finish(struct sha256_state *sctx, void *out);
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#endif // SHA256_H
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#if defined (__cplusplus)
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#ifdef __cplusplus
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}
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#endif
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163
stratosphere/loader/source/sha256_armv8.s
Normal file
163
stratosphere/loader/source/sha256_armv8.s
Normal file
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@ -0,0 +1,163 @@
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.section .text.sha256_armv8, "ax", %progbits
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.align 5
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.arch armv8-a+crypto
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# SHA256 assembly implementation for ARMv8 AArch64 (based on linux source code)
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.global sha256_block_data_order
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.type sha256_block_data_order,%function
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sha256_block_data_order:
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.Lsha256prolog:
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stp x29, x30, [sp,#-64]!
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mov x29, sp
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adr x3, .LKConstant256
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str q8, [sp, #16]
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ld1 {v16.4s-v19.4s}, [x3], #64
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ld1 {v0.4s}, [x0], #16
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ld1 {v20.4s-v23.4s}, [x3], #64
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add x2, x1, x2, lsl #6
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ld1 {v1.4s}, [x0]
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ld1 {v24.4s-v27.4s}, [x3], #64
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sub x0, x0, #16
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str q9, [sp, #32]
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str q10, [sp, #48]
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ld1 {v28.4s-v31.4s}, [x3], #64
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.Lsha256loop:
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ld1 {v5.16b-v8.16b}, [x1], #64
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mov v2.16b, v0.16b
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mov v3.16b, v1.16b
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|
||||
rev32 v5.16b, v5.16b
|
||||
rev32 v6.16b, v6.16b
|
||||
add v9.4s, v5.4s, v16.4s
|
||||
rev32 v7.16b, v7.16b
|
||||
add v10.4s, v6.4s, v17.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v5.4s, v6.4s
|
||||
rev32 v8.16b, v8.16b
|
||||
add v9.4s, v7.4s, v18.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v6.4s, v7.4s
|
||||
sha256su1 v5.4s, v7.4s, v8.4s
|
||||
add v10.4s, v8.4s, v19.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v7.4s, v8.4s
|
||||
sha256su1 v6.4s, v8.4s, v5.4s
|
||||
add v9.4s, v5.4s, v20.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v8.4s, v5.4s
|
||||
sha256su1 v7.4s, v5.4s, v6.4s
|
||||
add v10.4s, v6.4s, v21.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v5.4s, v6.4s
|
||||
sha256su1 v8.4s, v6.4s, v7.4s
|
||||
add v9.4s, v7.4s, v22.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v6.4s, v7.4s
|
||||
sha256su1 v5.4s, v7.4s, v8.4s
|
||||
add v10.4s, v8.4s, v23.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v7.4s, v8.4s
|
||||
sha256su1 v6.4s, v8.4s, v5.4s
|
||||
add v9.4s, v5.4s, v24.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v8.4s, v5.4s
|
||||
sha256su1 v7.4s, v5.4s, v6.4s
|
||||
add v10.4s, v6.4s, v25.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v5.4s, v6.4s
|
||||
sha256su1 v8.4s, v6.4s, v7.4s
|
||||
add v9.4s, v7.4s, v26.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v6.4s, v7.4s
|
||||
sha256su1 v5.4s, v7.4s, v8.4s
|
||||
add v10.4s, v8.4s, v27.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su0 v7.4s, v8.4s
|
||||
sha256su1 v6.4s, v8.4s, v5.4s
|
||||
add v9.4s, v5.4s, v28.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
sha256su0 v8.4s, v5.4s
|
||||
sha256su1 v7.4s, v5.4s, v6.4s
|
||||
add v10.4s, v6.4s, v29.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
sha256su1 v8.4s, v6.4s, v7.4s
|
||||
add v9.4s, v7.4s, v30.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
add v10.4s, v8.4s, v31.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v9.4s
|
||||
sha256h2 q3, q4, v9.4s
|
||||
mov v4.16b, v2.16b
|
||||
sha256h q2, q3, v10.4s
|
||||
sha256h2 q3, q4, v10.4s
|
||||
cmp x1, x2
|
||||
add v1.4s, v1.4s, v3.4s
|
||||
add v0.4s, v0.4s, v2.4s
|
||||
b.ne .Lsha256loop
|
||||
|
||||
.Lsha256epilog:
|
||||
|
||||
st1 {v0.4s,v1.4s}, [x0]
|
||||
ldr q10, [sp, #48]
|
||||
ldr q9, [sp, #32]
|
||||
ldr q8, [sp, #16]
|
||||
ldr x29, [sp], #64
|
||||
ret
|
||||
|
||||
.align 5
|
||||
.LKConstant256:
|
||||
.word 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
|
||||
.word 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
|
||||
.word 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
|
||||
.word 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
|
||||
.word 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
|
||||
.word 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
|
||||
.word 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
|
||||
.word 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
|
||||
.word 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
|
||||
.word 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
|
||||
.word 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
|
||||
.word 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
|
||||
.word 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
|
||||
.word 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
|
||||
.word 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
|
||||
.word 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
||||
|
||||
.size sha256_block_data_order,.-sha256_block_data_order
|
||||
.align 2
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in a new issue