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diff --git a/core/lib/libtomcrypt/src/hashes/sha2/sha256_armv8a_ce.c b/core/lib/libtomcrypt/src/hashes/sha2/sha256_armv8a_ce.c
deleted file mode 100644
index 1ecd7b4a..00000000
--- a/core/lib/libtomcrypt/src/hashes/sha2/sha256_armv8a_ce.c
+++ /dev/null
@@ -1,218 +0,0 @@
-// SPDX-License-Identifier: BSD-2-Clause
-/*
- * Copyright (c) 2015, Linaro Limited
- * All rights reserved.
- * Copyright (c) 2001-2007, Tom St Denis
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* LibTomCrypt, modular cryptographic library -- Tom St Denis
- *
- * LibTomCrypt is a library that provides various cryptographic
- * algorithms in a highly modular and flexible manner.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
- */
-#include <tomcrypt_private.h>
-#include "tomcrypt_arm_neon.h"
-
-/**
- @file sha256_arm32_ce.c
- LTC_SHA256_ARM32_CE
-*/
-
-#if defined(LTC_SHA256_ARM32_CE) || defined(LTC_SHA256_ARM64_CE)
-
-const struct ltc_hash_descriptor sha256_desc =
-{
- "sha256",
- 0,
- 32,
- 64,
-
- /* OID */
- { 2, 16, 840, 1, 101, 3, 4, 2, 1, },
- 9,
-
- &sha256_init,
- &sha256_process,
- &sha256_done,
- &sha256_test,
- NULL
-};
-
-
-/* Implemented in assembly */
-int sha256_ce_transform(ulong32 *state, const unsigned char *buf, int blocks);
-
-static int sha256_compress_nblocks(hash_state *md, const unsigned char *buf,
- int blocks)
-{
- struct tomcrypt_arm_neon_state state;
-
- tomcrypt_arm_neon_enable(&state);
- sha256_ce_transform(md->sha256.state, buf, blocks);
- tomcrypt_arm_neon_disable(&state);
- return CRYPT_OK;
-}
-
-static int sha256_compress(hash_state *md, const unsigned char *buf)
-{
- return sha256_compress_nblocks(md, buf, 1);
-}
-
-/**
- Initialize the hash state
- @param md The hash state you wish to initialize
- @return CRYPT_OK if successful
-*/
-int sha256_init(hash_state * md)
-{
- LTC_ARGCHK(md != NULL);
-
- md->sha256.curlen = 0;
- md->sha256.length = 0;
- md->sha256.state[0] = 0x6A09E667UL;
- md->sha256.state[1] = 0xBB67AE85UL;
- md->sha256.state[2] = 0x3C6EF372UL;
- md->sha256.state[3] = 0xA54FF53AUL;
- md->sha256.state[4] = 0x510E527FUL;
- md->sha256.state[5] = 0x9B05688CUL;
- md->sha256.state[6] = 0x1F83D9ABUL;
- md->sha256.state[7] = 0x5BE0CD19UL;
- return CRYPT_OK;
-}
-
-/**
- Process a block of memory though the hash
- @param md The hash state
- @param in The data to hash
- @param inlen The length of the data (octets)
- @return CRYPT_OK if successful
-*/
-HASH_PROCESS_NBLOCKS(sha256_process, sha256_compress_nblocks, sha256, 64)
-
-/**
- Terminate the hash to get the digest
- @param md The hash state
- @param out [out] The destination of the hash (32 bytes)
- @return CRYPT_OK if successful
-*/
-int sha256_done(hash_state * md, unsigned char *out)
-{
- int i;
-
- LTC_ARGCHK(md != NULL);
- LTC_ARGCHK(out != NULL);
-
- if (md->sha256.curlen >= sizeof(md->sha256.buf)) {
- return CRYPT_INVALID_ARG;
- }
-
-
- /* increase the length of the message */
- md->sha256.length += md->sha256.curlen * 8;
-
- /* append the '1' bit */
- md->sha256.buf[md->sha256.curlen++] = (unsigned char)0x80;
-
- /* if the length is currently above 56 bytes we append zeros
- * then compress. Then we can fall back to padding zeros and length
- * encoding like normal.
- */
- if (md->sha256.curlen > 56) {
- while (md->sha256.curlen < 64) {
- md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
- }
- sha256_compress(md, md->sha256.buf);
- md->sha256.curlen = 0;
- }
-
- /* pad upto 56 bytes of zeroes */
- while (md->sha256.curlen < 56) {
- md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
- }
-
- /* store length */
- STORE64H(md->sha256.length, md->sha256.buf+56);
- sha256_compress(md, md->sha256.buf);
-
- /* copy output */
- for (i = 0; i < 8; i++) {
- STORE32H(md->sha256.state[i], out+(4*i));
- }
-#ifdef LTC_CLEAN_STACK
- zeromem(md, sizeof(hash_state));
-#endif
- return CRYPT_OK;
-}
-
-/**
- Self-test the hash
- @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
-*/
-int sha256_test(void)
-{
- #ifndef LTC_TEST
- return CRYPT_NOP;
- #else
- static const struct {
- const char *msg;
- unsigned char hash[32];
- } tests[] = {
- { "abc",
- { 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
- 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
- 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
- 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad }
- },
- { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
- { 0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
- 0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
- 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
- 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1 }
- },
- };
-
- int i;
- unsigned char tmp[32];
- hash_state md;
-
- for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
- sha256_init(&md);
- sha256_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
- sha256_done(&md, tmp);
- if (XMEMCMP(tmp, tests[i].hash, 32) != 0) {
- return CRYPT_FAIL_TESTVECTOR;
- }
- }
- return CRYPT_OK;
- #endif
-}
-
-#endif