// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #pragma once #include <stdint.h> #include <stdbool.h> #include <stddef.h> #ifdef __cplusplus extern "C" { #endif #define ETS_SIG_LEN 384 /* Bytes */ #define ETS_DIGEST_LEN 32 /* SHA-256, bytes */ typedef struct { uint8_t n[384]; /* Public key modulus */ uint32_t e; /* Public key exponent */ uint8_t rinv[384]; uint32_t mdash; } ets_rsa_pubkey_t; bool ets_rsa_pss_verify(const ets_rsa_pubkey_t *key, const uint8_t *sig, const uint8_t *digest, uint8_t *verified_digest); void ets_mgf1_sha256(const uint8_t *mgfSeed, size_t seedLen, size_t maskLen, uint8_t *mask); bool ets_emsa_pss_verify(const uint8_t *encoded_message, const uint8_t *mhash); #ifdef __cplusplus } #endif