1 /* 2 Copyright (c) 2021 Fraunhofer AISEC. See the COPYRIGHT 3 file at the top-level directory of this distribution. 4 5 Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or 6 http://www.apache.org/licenses/LICENSE-2.0> or the MIT license 7 <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your 8 option. This file may not be copied, modified, or distributed 9 except according to those terms. 10 */ 11 12 #ifndef COSE_H 13 #define COSE_H 14 15 #include "common/oscore_edhoc_error.h" 16 17 enum cose_context { 18 Encrypt0, 19 Signature1, 20 }; 21 22 /** 23 * @brief Encodes a cose encrypt structure 24 * @param context field in the cose encrypt structure 25 * @param contex_len length of context 26 * @param protected field in the cose encrypt structure 27 * @param protected_len length of protected 28 * @param external_aad field in the cose encrypt structure 29 * @param external_aad_len length of external_aad 30 * @param out the encoded structure 31 * @param out_len length of the encoded structure 32 * @retval err error code 33 */ 34 enum err cose_enc_structure_encode(const uint8_t *context, uint32_t context_len, 35 const uint8_t *protected, 36 uint32_t protected_len, 37 const uint8_t *external_aad, 38 uint32_t external_aad_len, uint8_t *out, 39 uint32_t *out_len); 40 41 /** 42 * @brief Encodes a cose signature structure 43 * @param context field in the cose signature structure 44 * @param contex_len length of context 45 * @param protected field in the cose signature structure 46 * @param protected_len length of protected 47 * @param external_aad field in the cose signature structure 48 * @param external_aad_len length of external_aad 49 * @param payload field in the cose signature structure 50 * @param payload_len length of payload 51 * @param out the encoded structure 52 * @param out_len length of the encoded structure 53 * @retval err error code 54 */ 55 enum err cose_sig_structure_encode(const uint8_t *context, uint32_t context_len, 56 const uint8_t *protected, 57 uint32_t protected_len, 58 const uint8_t *external_aad, 59 uint32_t external_aad_len, 60 const uint8_t *payload, uint32_t payload_len, 61 uint8_t *out, uint32_t *out_len); 62 63 #endif 64
