1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2014, Linaro Limited 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef TEE_CRYP_UTL_H 30 #define TEE_CRYP_UTL_H 31 32 #include <tee_api_types.h> 33 34 #if !defined(CFG_WITH_SOFTWARE_PRNG) 35 TEE_Result get_rng_array(void *buffer, int len); 36 #endif 37 38 TEE_Result tee_hash_get_digest_size(uint32_t algo, size_t *size); 39 TEE_Result tee_hash_createdigest(uint32_t algo, const uint8_t *data, 40 size_t datalen, uint8_t *digest, 41 size_t digestlen); 42 TEE_Result tee_mac_get_digest_size(uint32_t algo, size_t *size); 43 TEE_Result tee_cipher_get_block_size(uint32_t algo, size_t *size); 44 TEE_Result tee_do_cipher_update(void *ctx, uint32_t algo, 45 TEE_OperationMode mode, bool last_block, 46 const uint8_t *data, size_t len, uint8_t *dst); 47 TEE_Result tee_aes_cbc_cts_update(void *cbc_ctx, void *ecb_ctx, 48 TEE_OperationMode mode, bool last_block, 49 const uint8_t *data, size_t len, 50 uint8_t *dst); 51 52 TEE_Result tee_prng_add_entropy(const uint8_t *in, size_t len); 53 void plat_prng_add_jitter_entropy(void); 54 /* 55 * The _norpc version must not invoke Normal World, or infinite recursion 56 * may occur. As an exception however, using mutexes is allowed. 57 */ 58 void plat_prng_add_jitter_entropy_norpc(void); 59 60 #endif 61