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Diffstat (limited to 'client/wolfssl/wolfcrypt/src/port/arm/armv8-sha256.c')
-rw-r--r--client/wolfssl/wolfcrypt/src/port/arm/armv8-sha256.c1508
1 files changed, 1508 insertions, 0 deletions
diff --git a/client/wolfssl/wolfcrypt/src/port/arm/armv8-sha256.c b/client/wolfssl/wolfcrypt/src/port/arm/armv8-sha256.c
new file mode 100644
index 0000000..7f214d4
--- /dev/null
+++ b/client/wolfssl/wolfcrypt/src/port/arm/armv8-sha256.c
@@ -0,0 +1,1508 @@
+/* armv8-sha256.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
+
+#include <wolfssl/wolfcrypt/settings.h>
+
+#ifdef WOLFSSL_ARMASM
+#if !defined(NO_SHA256) || defined(WOLFSSL_SHA224)
+
+#include <wolfssl/wolfcrypt/sha256.h>
+#include <wolfssl/wolfcrypt/logging.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+
+#ifdef NO_INLINE
+ #include <wolfssl/wolfcrypt/misc.h>
+#else
+ #define WOLFSSL_MISC_INCLUDED
+ #include <wolfcrypt/src/misc.c>
+#endif
+
+
+static const ALIGN32 word32 K[64] = {
+ 0x428A2F98L, 0x71374491L, 0xB5C0FBCFL, 0xE9B5DBA5L, 0x3956C25BL,
+ 0x59F111F1L, 0x923F82A4L, 0xAB1C5ED5L, 0xD807AA98L, 0x12835B01L,
+ 0x243185BEL, 0x550C7DC3L, 0x72BE5D74L, 0x80DEB1FEL, 0x9BDC06A7L,
+ 0xC19BF174L, 0xE49B69C1L, 0xEFBE4786L, 0x0FC19DC6L, 0x240CA1CCL,
+ 0x2DE92C6FL, 0x4A7484AAL, 0x5CB0A9DCL, 0x76F988DAL, 0x983E5152L,
+ 0xA831C66DL, 0xB00327C8L, 0xBF597FC7L, 0xC6E00BF3L, 0xD5A79147L,
+ 0x06CA6351L, 0x14292967L, 0x27B70A85L, 0x2E1B2138L, 0x4D2C6DFCL,
+ 0x53380D13L, 0x650A7354L, 0x766A0ABBL, 0x81C2C92EL, 0x92722C85L,
+ 0xA2BFE8A1L, 0xA81A664BL, 0xC24B8B70L, 0xC76C51A3L, 0xD192E819L,
+ 0xD6990624L, 0xF40E3585L, 0x106AA070L, 0x19A4C116L, 0x1E376C08L,
+ 0x2748774CL, 0x34B0BCB5L, 0x391C0CB3L, 0x4ED8AA4AL, 0x5B9CCA4FL,
+ 0x682E6FF3L, 0x748F82EEL, 0x78A5636FL, 0x84C87814L, 0x8CC70208L,
+ 0x90BEFFFAL, 0xA4506CEBL, 0xBEF9A3F7L, 0xC67178F2L
+};
+
+
+static int InitSha256(wc_Sha256* sha256)
+{
+ int ret = 0;
+
+ if (sha256 == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+ sha256->digest[0] = 0x6A09E667L;
+ sha256->digest[1] = 0xBB67AE85L;
+ sha256->digest[2] = 0x3C6EF372L;
+ sha256->digest[3] = 0xA54FF53AL;
+ sha256->digest[4] = 0x510E527FL;
+ sha256->digest[5] = 0x9B05688CL;
+ sha256->digest[6] = 0x1F83D9ABL;
+ sha256->digest[7] = 0x5BE0CD19L;
+
+ sha256->buffLen = 0;
+ sha256->loLen = 0;
+ sha256->hiLen = 0;
+
+ return ret;
+}
+
+static WC_INLINE void AddLength(wc_Sha256* sha256, word32 len)
+{
+ word32 tmp = sha256->loLen;
+ if ((sha256->loLen += len) < tmp)
+ sha256->hiLen++; /* carry low to high */
+}
+
+
+#ifdef __aarch64__
+
+/* ARMv8 hardware acceleration */
+static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
+{
+ word32 add;
+ word32 numBlocks;
+
+ /* only perform actions if a buffer is passed in */
+ if (len > 0) {
+ /* fill leftover buffer with data */
+ add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
+ XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
+ sha256->buffLen += add;
+ data += add;
+ len -= add;
+
+ /* number of blocks in a row to complete */
+ numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
+
+ if (numBlocks > 0) {
+ word32* k = (word32*)K;
+
+ /* get leftover amount after blocks */
+ add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
+ __asm__ volatile (
+ "#load leftover data\n"
+ "LD1 {v0.2d-v3.2d}, %[buffer] \n"
+
+ "#load current digest\n"
+ "LD1 {v12.2d-v13.2d}, %[digest] \n"
+ "MOV w8, %w[blocks] \n"
+ "REV32 v0.16b, v0.16b \n"
+ "REV32 v1.16b, v1.16b \n"
+ "REV32 v2.16b, v2.16b \n"
+ "REV32 v3.16b, v3.16b \n"
+
+ "#load K values in \n"
+ "LD1 {v16.4s-v19.4s}, [%[k]], #64 \n"
+ "LD1 {v20.4s-v23.4s}, [%[k]], #64 \n"
+ "MOV v14.16b, v12.16b \n" /* store digest for add at the end */
+ "MOV v15.16b, v13.16b \n"
+ "LD1 {v24.4s-v27.4s}, [%[k]], #64 \n"
+ "LD1 {v28.4s-v31.4s}, [%[k]], #64 \n"
+
+ /* beginning of SHA256 block operation */
+ "1:\n"
+ /* Round 1 */
+ "MOV v4.16b, v0.16b \n"
+ "ADD v0.4s, v0.4s, v16.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 2 */
+ "SHA256SU0 v4.4s, v1.4s \n"
+ "ADD v0.4s, v1.4s, v17.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v4.4s, v2.4s, v3.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 3 */
+ "SHA256SU0 v1.4s, v2.4s \n"
+ "ADD v0.4s, v2.4s, v18.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v1.4s, v3.4s, v4.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 4 */
+ "SHA256SU0 v2.4s, v3.4s \n"
+ "ADD v0.4s, v3.4s, v19.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v2.4s, v4.4s, v1.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 5 */
+ "SHA256SU0 v3.4s, v4.4s \n"
+ "ADD v0.4s, v4.4s, v20.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v3.4s, v1.4s, v2.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 6 */
+ "SHA256SU0 v4.4s, v1.4s \n"
+ "ADD v0.4s, v1.4s, v21.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v4.4s, v2.4s, v3.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 7 */
+ "SHA256SU0 v1.4s, v2.4s \n"
+ "ADD v0.4s, v2.4s, v22.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v1.4s, v3.4s, v4.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 8 */
+ "SHA256SU0 v2.4s, v3.4s \n"
+ "ADD v0.4s, v3.4s, v23.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v2.4s, v4.4s, v1.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 9 */
+ "SHA256SU0 v3.4s, v4.4s \n"
+ "ADD v0.4s, v4.4s, v24.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v3.4s, v1.4s, v2.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 10 */
+ "SHA256SU0 v4.4s, v1.4s \n"
+ "ADD v0.4s, v1.4s, v25.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v4.4s, v2.4s, v3.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 11 */
+ "SHA256SU0 v1.4s, v2.4s \n"
+ "ADD v0.4s, v2.4s, v26.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v1.4s, v3.4s, v4.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 12 */
+ "SHA256SU0 v2.4s, v3.4s \n"
+ "ADD v0.4s, v3.4s, v27.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v2.4s, v4.4s, v1.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 13 */
+ "SHA256SU0 v3.4s, v4.4s \n"
+ "ADD v0.4s, v4.4s, v28.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256SU1 v3.4s, v1.4s, v2.4s \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 14 */
+ "ADD v0.4s, v1.4s, v29.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 15 */
+ "ADD v0.4s, v2.4s, v30.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ /* Round 16 */
+ "ADD v0.4s, v3.4s, v31.4s \n"
+ "MOV v11.16b, v12.16b \n"
+ "SHA256H q12, q13, v0.4s \n"
+ "SHA256H2 q13, q11, v0.4s \n"
+
+ "#Add working vars back into digest state \n"
+ "SUB w8, w8, #1 \n"
+ "ADD v12.4s, v12.4s, v14.4s \n"
+ "ADD v13.4s, v13.4s, v15.4s \n"
+
+ "#check if more blocks should be done\n"
+ "CBZ w8, 2f \n"
+
+ "#load in message and schedule updates \n"
+ "LD1 {v0.2d-v3.2d}, [%[dataIn]], #64 \n"
+ "MOV v14.16b, v12.16b \n"
+ "MOV v15.16b, v13.16b \n"
+ "REV32 v0.16b, v0.16b \n"
+ "REV32 v1.16b, v1.16b \n"
+ "REV32 v2.16b, v2.16b \n"
+ "REV32 v3.16b, v3.16b \n"
+ "B 1b \n" /* do another block */
+
+ "2:\n"
+ "STP q12, q13, %[out] \n"
+
+ : [out] "=m" (sha256->digest), "=m" (sha256->buffer), "=r" (numBlocks),
+ "=r" (data), "=r" (k)
+ : [k] "4" (k), [digest] "m" (sha256->digest), [buffer] "m" (sha256->buffer),
+ [blocks] "2" (numBlocks), [dataIn] "3" (data)
+ : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
+ "v8", "v9", "v10", "v11", "v12", "v13", "v14",
+ "v15", "v16", "v17", "v18", "v19", "v20", "v21",
+ "v22", "v23", "v24", "v25", "v26", "v27", "v28",
+ "v29", "v30", "v31", "w8"
+ );
+
+ AddLength(sha256, WC_SHA256_BLOCK_SIZE * numBlocks);
+
+ /* copy over any remaining data leftover */
+ XMEMCPY(sha256->buffer, data, add);
+ sha256->buffLen = add;
+ }
+ }
+
+ /* account for possibility of not used if len = 0 */
+ (void)add;
+ (void)numBlocks;
+
+ return 0;
+}
+
+
+static WC_INLINE int Sha256Final(wc_Sha256* sha256, byte* hash)
+{
+ byte* local;
+
+ local = (byte*)sha256->buffer;
+ AddLength(sha256, sha256->buffLen); /* before adding pads */
+
+ local[sha256->buffLen++] = 0x80; /* add 1 */
+
+ /* pad with zeros */
+ if (sha256->buffLen > WC_SHA256_PAD_SIZE) {
+
+ XMEMSET(&local[sha256->buffLen], 0, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
+ sha256->buffLen += WC_SHA256_BLOCK_SIZE - sha256->buffLen;
+ __asm__ volatile (
+ "LD1 {v4.2d-v7.2d}, %[buffer] \n"
+ "MOV v0.16b, v4.16b \n"
+ "MOV v1.16b, v5.16b \n"
+ "REV32 v0.16b, v0.16b \n"
+ "REV32 v1.16b, v1.16b \n"
+ "MOV v2.16b, v6.16b \n"
+ "MOV v3.16b, v7.16b \n"
+ "REV32 v2.16b, v2.16b \n"
+ "REV32 v3.16b, v3.16b \n"
+ "MOV v4.16b, v0.16b \n"
+ "MOV v5.16b, v1.16b \n"
+ "LD1 {v20.2d-v21.2d}, %[digest] \n"
+
+ "#SHA256 operation on updated message \n"
+ "MOV v16.16b, v20.16b \n"
+ "MOV v17.16b, v21.16b \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v4.4s, v1.4s \n"
+ "ADD v0.4s, v0.4s, v22.4s \n"
+ "MOV v6.16b, v2.16b \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v4.4s, v2.4s, v3.4s \n"
+ "SHA256H q16, q17, v0.4s \n"
+ "SHA256H2 q17, q18, v0.4s \n"
+
+ "SHA256SU0 v5.4s, v2.4s \n"
+ "ADD v1.4s, v1.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v7.16b, v3.16b \n"
+ "SHA256SU1 v5.4s, v3.4s, v4.4s \n"
+ "SHA256H q16, q17, v1.4s \n"
+ "SHA256H2 q17, q18, v1.4s \n"
+
+ "SHA256SU0 v6.4s, v3.4s \n"
+ "ADD v2.4s, v2.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v8.16b, v4.16b \n"
+ "SHA256SU1 v6.4s, v4.4s, v5.4s \n"
+ "SHA256H q16, q17, v2.4s \n"
+ "SHA256H2 q17, q18, v2.4s \n"
+
+ "SHA256SU0 v7.4s, v4.4s \n"
+ "ADD v3.4s, v3.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v9.16b, v5.16b \n"
+ "SHA256SU1 v7.4s, v5.4s, v6.4s \n"
+ "SHA256H q16, q17, v3.4s \n"
+ "SHA256H2 q17, q18, v3.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v8.4s, v5.4s \n"
+ "ADD v4.4s, v4.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v10.16b, v6.16b \n"
+ "SHA256SU1 v8.4s, v6.4s, v7.4s \n"
+ "SHA256H q16, q17, v4.4s \n"
+ "SHA256H2 q17, q18, v4.4s \n"
+
+ "SHA256SU0 v9.4s, v6.4s \n"
+ "ADD v5.4s, v5.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v11.16b, v7.16b \n"
+ "SHA256SU1 v9.4s, v7.4s, v8.4s \n"
+ "SHA256H q16, q17, v5.4s \n"
+ "SHA256H2 q17, q18, v5.4s \n"
+
+ "SHA256SU0 v10.4s, v7.4s \n"
+ "ADD v6.4s, v6.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v12.16b, v8.16b \n"
+ "SHA256SU1 v10.4s, v8.4s, v9.4s \n"
+ "SHA256H q16, q17, v6.4s \n"
+ "SHA256H2 q17, q18, v6.4s \n"
+
+ "SHA256SU0 v11.4s, v8.4s \n"
+ "ADD v7.4s, v7.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v13.16b, v9.16b \n"
+ "SHA256SU1 v11.4s, v9.4s, v10.4s \n"
+ "SHA256H q16, q17, v7.4s \n"
+ "SHA256H2 q17, q18, v7.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v12.4s, v9.4s \n"
+ "ADD v8.4s, v8.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v14.16b, v10.16b \n"
+ "SHA256SU1 v12.4s, v10.4s, v11.4s \n"
+ "SHA256H q16, q17, v8.4s \n"
+ "SHA256H2 q17, q18, v8.4s \n"
+
+ "SHA256SU0 v13.4s, v10.4s \n"
+ "ADD v9.4s, v9.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v15.16b, v11.16b \n"
+ "SHA256SU1 v13.4s, v11.4s, v12.4s \n"
+ "SHA256H q16, q17, v9.4s \n"
+ "SHA256H2 q17, q18, v9.4s \n"
+
+ "SHA256SU0 v14.4s, v11.4s \n"
+ "ADD v10.4s, v10.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v14.4s, v12.4s, v13.4s \n"
+ "SHA256H q16, q17, v10.4s \n"
+ "SHA256H2 q17, q18, v10.4s \n"
+
+ "SHA256SU0 v15.4s, v12.4s \n"
+ "ADD v11.4s, v11.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v15.4s, v13.4s, v14.4s \n"
+ "SHA256H q16, q17, v11.4s \n"
+ "SHA256H2 q17, q18, v11.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]] \n"
+ "ADD v12.4s, v12.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v12.4s \n"
+ "SHA256H2 q17, q18, v12.4s \n"
+
+ "ADD v13.4s, v13.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v13.4s \n"
+ "SHA256H2 q17, q18, v13.4s \n"
+
+ "ADD v14.4s, v14.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v14.4s \n"
+ "SHA256H2 q17, q18, v14.4s \n"
+
+ "ADD v15.4s, v15.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v15.4s \n"
+ "SHA256H2 q17, q18, v15.4s \n"
+
+ "#Add working vars back into digest state \n"
+ "ADD v16.4s, v16.4s, v20.4s \n"
+ "ADD v17.4s, v17.4s, v21.4s \n"
+ "STP q16, q17, %[out] \n"
+
+ : [out] "=m" (sha256->digest)
+ : [k] "r" (K), [digest] "m" (sha256->digest),
+ [buffer] "m" (sha256->buffer)
+ : "cc", "memory", "v0", "v1", "v2", "v3", "v8", "v9", "v10", "v11"
+ , "v12", "v13", "v14", "v15", "v16", "v17", "v18"
+ , "v19", "v20", "v21", "v22", "v23", "v24", "v25"
+ );
+
+ sha256->buffLen = 0;
+ }
+ XMEMSET(&local[sha256->buffLen], 0, WC_SHA256_PAD_SIZE - sha256->buffLen);
+
+ /* put lengths in bits */
+ sha256->hiLen = (sha256->loLen >> (8*sizeof(sha256->loLen) - 3)) +
+ (sha256->hiLen << 3);
+ sha256->loLen = sha256->loLen << 3;
+
+ /* store lengths */
+ #if defined(LITTLE_ENDIAN_ORDER)
+ __asm__ volatile (
+ "LD1 {v0.2d-v3.2d}, %[in] \n"
+ "REV32 v0.16b, v0.16b \n"
+ "REV32 v1.16b, v1.16b \n"
+ "REV32 v2.16b, v2.16b \n"
+ "REV32 v3.16b, v3.16b \n"
+ "ST1 {v0.2d-v3.2d}, %[out] \n"
+ : [out] "=m" (sha256->buffer)
+ : [in] "m" (sha256->buffer)
+ : "cc", "memory", "v0", "v1", "v2", "v3"
+ );
+ #endif
+ /* ! length ordering dependent on digest endian type ! */
+ XMEMCPY(&local[WC_SHA256_PAD_SIZE], &sha256->hiLen, sizeof(word32));
+ XMEMCPY(&local[WC_SHA256_PAD_SIZE + sizeof(word32)], &sha256->loLen,
+ sizeof(word32));
+
+ __asm__ volatile (
+ "#load in message and schedule updates \n"
+ "LD1 {v4.2d-v7.2d}, %[buffer] \n"
+ "MOV v0.16b, v4.16b \n"
+ "MOV v1.16b, v5.16b \n"
+ "MOV v2.16b, v6.16b \n"
+ "MOV v3.16b, v7.16b \n"
+ "LD1 {v20.2d-v21.2d}, %[digest] \n"
+
+ "MOV v16.16b, v20.16b \n"
+ "MOV v17.16b, v21.16b \n"
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v4.4s, v1.4s \n"
+ "ADD v0.4s, v0.4s, v22.4s \n"
+ "MOV v6.16b, v2.16b \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v4.4s, v2.4s, v3.4s \n"
+ "SHA256H q16, q17, v0.4s \n"
+ "SHA256H2 q17, q18, v0.4s \n"
+
+ "SHA256SU0 v5.4s, v2.4s \n"
+ "ADD v1.4s, v1.4s, v23.4s \n"
+ "MOV v7.16b, v3.16b \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v5.4s, v3.4s, v4.4s \n"
+ "SHA256H q16, q17, v1.4s \n"
+ "SHA256H2 q17, q18, v1.4s \n"
+
+ "SHA256SU0 v6.4s, v3.4s \n"
+ "ADD v2.4s, v2.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v8.16b, v4.16b \n"
+ "SHA256SU1 v6.4s, v4.4s, v5.4s \n"
+ "SHA256H q16, q17, v2.4s \n"
+ "SHA256H2 q17, q18, v2.4s \n"
+
+ "SHA256SU0 v7.4s, v4.4s \n"
+ "ADD v3.4s, v3.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v9.16b, v5.16b \n"
+ "SHA256SU1 v7.4s, v5.4s, v6.4s \n"
+ "SHA256H q16, q17, v3.4s \n"
+ "SHA256H2 q17, q18, v3.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v8.4s, v5.4s \n"
+ "ADD v4.4s, v4.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v10.16b, v6.16b \n"
+ "SHA256SU1 v8.4s, v6.4s, v7.4s \n"
+ "SHA256H q16, q17, v4.4s \n"
+ "SHA256H2 q17, q18, v4.4s \n"
+
+ "SHA256SU0 v9.4s, v6.4s \n"
+ "ADD v5.4s, v5.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v11.16b, v7.16b \n"
+ "SHA256SU1 v9.4s, v7.4s, v8.4s \n"
+ "SHA256H q16, q17, v5.4s \n"
+ "SHA256H2 q17, q18, v5.4s \n"
+
+ "SHA256SU0 v10.4s, v7.4s \n"
+ "ADD v6.4s, v6.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v12.16b, v8.16b \n"
+ "SHA256SU1 v10.4s, v8.4s, v9.4s \n"
+ "SHA256H q16, q17, v6.4s \n"
+ "SHA256H2 q17, q18, v6.4s \n"
+
+ "SHA256SU0 v11.4s, v8.4s \n"
+ "ADD v7.4s, v7.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v13.16b, v9.16b \n"
+ "SHA256SU1 v11.4s, v9.4s, v10.4s \n"
+ "SHA256H q16, q17, v7.4s \n"
+ "SHA256H2 q17, q18, v7.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]], #64 \n"
+ "SHA256SU0 v12.4s, v9.4s \n"
+ "ADD v8.4s, v8.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v14.16b, v10.16b \n"
+ "SHA256SU1 v12.4s, v10.4s, v11.4s \n"
+ "SHA256H q16, q17, v8.4s \n"
+ "SHA256H2 q17, q18, v8.4s \n"
+
+ "SHA256SU0 v13.4s, v10.4s \n"
+ "ADD v9.4s, v9.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "MOV v15.16b, v11.16b \n"
+ "SHA256SU1 v13.4s, v11.4s, v12.4s \n"
+ "SHA256H q16, q17, v9.4s \n"
+ "SHA256H2 q17, q18, v9.4s \n"
+
+ "SHA256SU0 v14.4s, v11.4s \n"
+ "ADD v10.4s, v10.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v14.4s, v12.4s, v13.4s \n"
+ "SHA256H q16, q17, v10.4s \n"
+ "SHA256H2 q17, q18, v10.4s \n"
+
+ "SHA256SU0 v15.4s, v12.4s \n"
+ "ADD v11.4s, v11.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256SU1 v15.4s, v13.4s, v14.4s \n"
+ "SHA256H q16, q17, v11.4s \n"
+ "SHA256H2 q17, q18, v11.4s \n"
+
+ "LD1 {v22.16b-v25.16b}, [%[k]] \n"
+ "ADD v12.4s, v12.4s, v22.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v12.4s \n"
+ "SHA256H2 q17, q18, v12.4s \n"
+
+ "ADD v13.4s, v13.4s, v23.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v13.4s \n"
+ "SHA256H2 q17, q18, v13.4s \n"
+
+ "ADD v14.4s, v14.4s, v24.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v14.4s \n"
+ "SHA256H2 q17, q18, v14.4s \n"
+
+ "ADD v15.4s, v15.4s, v25.4s \n"
+ "MOV v18.16b, v16.16b \n"
+ "SHA256H q16, q17, v15.4s \n"
+ "SHA256H2 q17, q18, v15.4s \n"
+
+ "#Add working vars back into digest state \n"
+ "ADD v16.4s, v16.4s, v20.4s \n"
+ "ADD v17.4s, v17.4s, v21.4s \n"
+
+ "#Store value as hash output \n"
+ #if defined(LITTLE_ENDIAN_ORDER)
+ "REV32 v16.16b, v16.16b \n"
+ #endif
+ "ST1 {v16.16b}, [%[hashOut]], #16 \n"
+ #if defined(LITTLE_ENDIAN_ORDER)
+ "REV32 v17.16b, v17.16b \n"
+ #endif
+ "ST1 {v17.16b}, [%[hashOut]] \n"
+ : [hashOut] "=r" (hash)
+ : [k] "r" (K), [digest] "m" (sha256->digest),
+ [buffer] "m" (sha256->buffer),
+ "0" (hash)
+ : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
+ "v8", "v9", "v10", "v11", "v12", "v13", "v14",
+ "v15", "v16", "v17", "v18", "v19", "v20", "v21",
+ "v22", "v23", "v24", "v25"
+ );
+
+ return 0;
+}
+
+#else /* not using 64 bit */
+
+/* ARMv8 hardware acceleration Aarch32 */
+static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
+{
+ word32 add;
+ word32 numBlocks;
+
+ /* only perform actions if a buffer is passed in */
+ if (len > 0) {
+ /* fill leftover buffer with data */
+ add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
+ XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
+ sha256->buffLen += add;
+ data += add;
+ len -= add;
+
+ /* number of blocks in a row to complete */
+ numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
+
+ if (numBlocks > 0) {
+ word32* bufPt = sha256->buffer;
+ word32* digPt = sha256->digest;
+ /* get leftover amount after blocks */
+ add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
+ __asm__ volatile (
+ "#load leftover data\n"
+ "VLDM %[buffer]!, {q0-q3} \n"
+
+ "#load current digest\n"
+ "VLDM %[digest], {q12-q13} \n"
+ "MOV r8, %[blocks] \n"
+ "VREV32.8 q0, q0 \n"
+ "VREV32.8 q1, q1 \n"
+ "VREV32.8 q2, q2 \n"
+ "VREV32.8 q3, q3 \n"
+ "VLDM %[k]! ,{q5-q8} \n"
+ "VLDM %[k]! ,{q9}\n"
+
+ "VMOV.32 q14, q12 \n" /* store digest for add at the end */
+ "VMOV.32 q15, q13 \n"
+
+ /* beginning of SHA256 block operation */
+ "1:\n"
+
+ /* Round 1 */
+ "VMOV.32 q4, q0 \n"
+ "VADD.i32 q0, q0, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 2 */
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q6 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 3 */
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q7 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 4 */
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q8 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 5 */
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q9 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 6 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 7 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 8 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 9 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 10 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 11 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 12 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 13 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 14 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "VADD.i32 q0, q1, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 15 */
+ "VLD1.32 {q10}, [%[k]]! \n"
+ "VADD.i32 q0, q2, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 16 */
+ "VLD1.32 {q10}, [%[k]] \n"
+ "SUB r8, r8, #1 \n"
+ "VADD.i32 q0, q3, q10 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ "#Add working vars back into digest state \n"
+ "VADD.i32 q12, q12, q14 \n"
+ "VADD.i32 q13, q13, q15 \n"
+
+ "#check if more blocks should be done\n"
+ "CMP r8, #0 \n"
+ "BEQ 2f \n"
+
+ "#load in message and schedule updates \n"
+ "VLD1.32 {q0}, [%[dataIn]]! \n"
+ "VLD1.32 {q1}, [%[dataIn]]! \n"
+ "VLD1.32 {q2}, [%[dataIn]]! \n"
+ "VLD1.32 {q3}, [%[dataIn]]! \n"
+
+ /* reset K pointer */
+ "SUB %[k], %[k], #160 \n"
+ "VREV32.8 q0, q0 \n"
+ "VREV32.8 q1, q1 \n"
+ "VREV32.8 q2, q2 \n"
+ "VREV32.8 q3, q3 \n"
+ "VMOV.32 q14, q12 \n"
+ "VMOV.32 q15, q13 \n"
+ "B 1b \n" /* do another block */
+
+ "2:\n"
+ "VST1.32 {q12, q13}, [%[out]] \n"
+
+ : [out] "=r" (digPt), "=r" (bufPt), "=r" (numBlocks),
+ "=r" (data)
+ : [k] "r" (K), [digest] "0" (digPt), [buffer] "1" (bufPt),
+ [blocks] "2" (numBlocks), [dataIn] "3" (data)
+ : "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
+ "q8", "q9", "q10", "q11", "q12", "q13", "q14",
+ "q15", "r8"
+ );
+
+ AddLength(sha256, WC_SHA256_BLOCK_SIZE * numBlocks);
+
+ /* copy over any remaining data leftover */
+ XMEMCPY(sha256->buffer, data, add);
+ sha256->buffLen = add;
+ }
+ }
+
+ /* account for possibility of not used if len = 0 */
+ (void)add;
+ (void)numBlocks;
+
+ return 0;
+}
+
+
+static WC_INLINE int Sha256Final(wc_Sha256* sha256, byte* hash)
+{
+ byte* local;
+
+ if (sha256 == NULL || hash == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+ local = (byte*)sha256->buffer;
+ AddLength(sha256, sha256->buffLen); /* before adding pads */
+
+ local[sha256->buffLen++] = 0x80; /* add 1 */
+
+ /* pad with zeros */
+ if (sha256->buffLen > WC_SHA256_PAD_SIZE) {
+ word32* bufPt = sha256->buffer;
+ word32* digPt = sha256->digest;
+ XMEMSET(&local[sha256->buffLen], 0, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
+ sha256->buffLen += WC_SHA256_BLOCK_SIZE - sha256->buffLen;
+ __asm__ volatile (
+ "#load leftover data\n"
+ "VLDM %[buffer]!, {q0-q3} \n"
+
+ "#load current digest\n"
+ "VLDM %[digest], {q12-q13} \n"
+ "VREV32.8 q0, q0 \n"
+ "VREV32.8 q1, q1 \n"
+ "VREV32.8 q2, q2 \n"
+ "VREV32.8 q3, q3 \n"
+
+ "#load K values in \n"
+ "VMOV.32 q14, q12 \n" /* store digest for add at the end */
+ "VMOV.32 q15, q13 \n"
+
+ /* beginning of SHA256 block operation */
+ /* Round 1 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VMOV.32 q4, q0 \n"
+ "VADD.i32 q0, q0, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 2 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 3 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 4 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 5 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 6 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 7 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 8 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 9 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 10 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 11 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 12 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 13 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 14 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 15 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 16 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ "#Add working vars back into digest state \n"
+ "VADD.i32 q12, q12, q14 \n"
+ "VADD.i32 q13, q13, q15 \n"
+
+ /* reset K pointer */
+ "SUB %[k], %[k], #256 \n"
+ "VST1.32 {q12, q13}, [%[out]] \n"
+
+ : [out] "=r" (digPt), "=r" (bufPt)
+ : [k] "r" (K), [digest] "0" (digPt), [buffer] "1" (bufPt)
+ : "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
+ "q8", "q9", "q10", "q11", "q12", "q13", "q14",
+ "q15"
+ );
+
+ sha256->buffLen = 0;
+ }
+ XMEMSET(&local[sha256->buffLen], 0, WC_SHA256_PAD_SIZE - sha256->buffLen);
+
+ /* put lengths in bits */
+ sha256->hiLen = (sha256->loLen >> (8*sizeof(sha256->loLen) - 3)) +
+ (sha256->hiLen << 3);
+ sha256->loLen = sha256->loLen << 3;
+
+ /* store lengths */
+ #if defined(LITTLE_ENDIAN_ORDER)
+ {
+ word32* bufPt = sha256->buffer;
+ __asm__ volatile (
+ "VLD1.32 {q0}, [%[in]] \n"
+ "VREV32.8 q0, q0 \n"
+ "VST1.32 {q0}, [%[out]]!\n"
+ "VLD1.32 {q1}, [%[in]] \n"
+ "VREV32.8 q1, q1 \n"
+ "VST1.32 {q1}, [%[out]]!\n"
+ "VLD1.32 {q2}, [%[in]] \n"
+ "VREV32.8 q2, q2 \n"
+ "VST1.32 {q2}, [%[out]]!\n"
+ "VLD1.32 {q3}, [%[in]] \n"
+ "VREV32.8 q3, q3 \n"
+ "VST1.32 {q3}, [%[out]] \n"
+ : [out] "=r" (bufPt)
+ : [in] "0" (bufPt)
+ : "cc", "memory", "q0", "q1", "q2", "q3"
+ );
+ }
+ #endif
+ /* ! length ordering dependent on digest endian type ! */
+ XMEMCPY(&local[WC_SHA256_PAD_SIZE], &sha256->hiLen, sizeof(word32));
+ XMEMCPY(&local[WC_SHA256_PAD_SIZE + sizeof(word32)], &sha256->loLen,
+ sizeof(word32));
+
+ bufPt = sha256->buffer;
+ word32* digPt = sha256->digest;
+ __asm__ volatile (
+ "#load leftover data\n"
+ "VLDM %[buffer]!, {q0-q3} \n"
+
+ "#load current digest\n"
+ "VLDM %[digest], {q12-q13} \n"
+
+ "VMOV.32 q14, q12 \n" /* store digest for add at the end */
+ "VMOV.32 q15, q13 \n"
+
+ /* beginning of SHA256 block operation */
+ /* Round 1 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VMOV.32 q4, q0 \n"
+ "VADD.i32 q0, q0, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 2 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 3 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 4 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 5 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 6 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 7 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 8 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 9 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 10 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q4, q1 \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q4, q2, q3 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 11 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q1, q2 \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q1, q3, q4 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 12 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q2, q3 \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q2, q4, q1 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 13 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "SHA256SU0.32 q3, q4 \n"
+ "VADD.i32 q0, q4, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256SU1.32 q3, q1, q2 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 14 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q1, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 15 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q2, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ /* Round 16 */
+ "VLD1.32 {q5}, [%[k]]! \n"
+ "VADD.i32 q0, q3, q5 \n"
+ "VMOV.32 q11, q12 \n"
+ "SHA256H.32 q12, q13, q0 \n"
+ "SHA256H2.32 q13, q11, q0 \n"
+
+ "#Add working vars back into digest state \n"
+ "VADD.i32 q12, q12, q14 \n"
+ "VADD.i32 q13, q13, q15 \n"
+
+ "#Store value as hash output \n"
+ #if defined(LITTLE_ENDIAN_ORDER)
+ "VREV32.8 q12, q12 \n"
+ #endif
+ "VST1.32 {q12}, [%[hashOut]]! \n"
+ #if defined(LITTLE_ENDIAN_ORDER)
+ "VREV32.8 q13, q13 \n"
+ #endif
+ "VST1.32 {q13}, [%[hashOut]] \n"
+
+ : [out] "=r" (digPt), "=r" (bufPt),
+ [hashOut] "=r" (hash)
+ : [k] "r" (K), [digest] "0" (digPt), [buffer] "1" (bufPt),
+ "2" (hash)
+ : "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
+ "q8", "q9", "q10", "q11", "q12", "q13", "q14",
+ "q15"
+ );
+
+ return 0;
+}
+
+#endif /* __aarch64__ */
+
+
+#ifndef NO_SHA256
+
+int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
+{
+ if (sha256 == NULL)
+ return BAD_FUNC_ARG;
+
+ sha256->heap = heap;
+ (void)devId;
+
+ return InitSha256(sha256);
+}
+
+int wc_InitSha256(wc_Sha256* sha256)
+{
+ return wc_InitSha256_ex(sha256, NULL, INVALID_DEVID);
+}
+
+void wc_Sha256Free(wc_Sha256* sha256)
+{
+ (void)sha256;
+}
+
+int wc_Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
+{
+ if (sha256 == NULL || (data == NULL && len != 0)) {
+ return BAD_FUNC_ARG;
+ }
+
+ return Sha256Update(sha256, data, len);
+}
+
+int wc_Sha256Final(wc_Sha256* sha256, byte* hash)
+{
+ int ret;
+
+ if (sha256 == NULL || hash == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+ ret = Sha256Final(sha256, hash);
+ if (ret != 0)
+ return ret;
+
+ return InitSha256(sha256); /* reset state */
+}
+
+int wc_Sha256GetHash(wc_Sha256* sha256, byte* hash)
+{
+ int ret;
+ wc_Sha256 tmpSha256;
+
+ if (sha256 == NULL || hash == NULL)
+ return BAD_FUNC_ARG;
+
+ ret = wc_Sha256Copy(sha256, &tmpSha256);
+ if (ret == 0) {
+ ret = wc_Sha256Final(&tmpSha256, hash);
+ }
+ return ret;
+}
+
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+int wc_Sha256SetFlags(wc_Sha256* sha256, word32 flags)
+{
+ if (sha256) {
+ sha256->flags = flags;
+ }
+ return 0;
+}
+int wc_Sha256GetFlags(wc_Sha256* sha256, word32* flags)
+{
+ if (sha256 && flags) {
+ *flags = sha256->flags;
+ }
+ return 0;
+}
+#endif
+
+int wc_Sha256Copy(wc_Sha256* src, wc_Sha256* dst)
+{
+ int ret = 0;
+
+ if (src == NULL || dst == NULL)
+ return BAD_FUNC_ARG;
+
+ XMEMCPY(dst, src, sizeof(wc_Sha256));
+
+ return ret;
+}
+
+#endif /* !NO_SHA256 */
+
+
+#ifdef WOLFSSL_SHA224
+ static int InitSha224(wc_Sha224* sha224)
+ {
+
+ int ret = 0;
+
+ if (sha224 == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+ sha224->digest[0] = 0xc1059ed8;
+ sha224->digest[1] = 0x367cd507;
+ sha224->digest[2] = 0x3070dd17;
+ sha224->digest[3] = 0xf70e5939;
+ sha224->digest[4] = 0xffc00b31;
+ sha224->digest[5] = 0x68581511;
+ sha224->digest[6] = 0x64f98fa7;
+ sha224->digest[7] = 0xbefa4fa4;
+
+ sha224->buffLen = 0;
+ sha224->loLen = 0;
+ sha224->hiLen = 0;
+
+ return ret;
+ }
+
+ int wc_InitSha224_ex(wc_Sha224* sha224, void* heap, int devId)
+ {
+ if (sha224 == NULL)
+ return BAD_FUNC_ARG;
+
+ sha224->heap = heap;
+ (void)devId;
+
+ return InitSha224(sha224);
+ }
+
+ int wc_InitSha224(wc_Sha224* sha224)
+ {
+ return wc_InitSha224_ex(sha224, NULL, INVALID_DEVID);
+ }
+
+ int wc_Sha224Update(wc_Sha224* sha224, const byte* data, word32 len)
+ {
+ int ret;
+
+ if (sha224 == NULL || (data == NULL && len > 0)) {
+ return BAD_FUNC_ARG;
+ }
+
+ ret = Sha256Update((wc_Sha256 *)sha224, data, len);
+
+ return ret;
+ }
+
+ int wc_Sha224Final(wc_Sha224* sha224, byte* hash)
+ {
+ int ret;
+ word32 hashTmp[WC_SHA256_DIGEST_SIZE/sizeof(word32)];
+
+ if (sha224 == NULL || hash == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+ ret = Sha256Final((wc_Sha256*)sha224, (byte*)hashTmp);
+ if (ret != 0)
+ return ret;
+
+ XMEMCPY(hash, hashTmp, WC_SHA224_DIGEST_SIZE);
+
+ return InitSha224(sha224); /* reset state */
+ }
+
+ void wc_Sha224Free(wc_Sha224* sha224)
+ {
+ if (sha224 == NULL)
+ return;
+ }
+
+ int wc_Sha224GetHash(wc_Sha224* sha224, byte* hash)
+ {
+ int ret;
+ wc_Sha224 tmpSha224;
+
+ if (sha224 == NULL || hash == NULL)
+ return BAD_FUNC_ARG;
+
+ ret = wc_Sha224Copy(sha224, &tmpSha224);
+ if (ret == 0) {
+ ret = wc_Sha224Final(&tmpSha224, hash);
+ }
+ return ret;
+ }
+
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+ int wc_Sha224SetFlags(wc_Sha224* sha224, word32 flags)
+ {
+ if (sha224) {
+ sha224->flags = flags;
+ }
+ return 0;
+ }
+ int wc_Sha224GetFlags(wc_Sha224* sha224, word32* flags)
+ {
+ if (sha224 && flags) {
+ *flags = sha224->flags;
+ }
+ return 0;
+ }
+#endif
+
+ int wc_Sha224Copy(wc_Sha224* src, wc_Sha224* dst)
+ {
+ int ret = 0;
+
+ if (src == NULL || dst == NULL)
+ return BAD_FUNC_ARG;
+
+ XMEMCPY(dst, src, sizeof(wc_Sha224));
+
+ return ret;
+ }
+
+#endif /* WOLFSSL_SHA224 */
+
+#endif /* !NO_SHA256 || WOLFSSL_SHA224 */
+#endif /* WOLFSSL_ARMASM */
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-25 04:11:03 +0000