54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// Copyright 2021 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#define PW_LOG_MODULE_NAME "SHA256-MTLS"
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#define PW_LOG_LEVEL PW_LOG_LEVEL_WARN
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#include "pw_crypto/sha256.h"
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#include "pw_status/status.h"
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namespace pw::crypto::sha256::backend {
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Status DoInit(NativeSha256Context& ctx) {
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// mbedtsl_sha256_init() never fails (returns void).
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mbedtls_sha256_init(&ctx);
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if (mbedtls_sha256_starts_ret(&ctx, /* is224 = */ 0)) {
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return Status::Internal();
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}
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return OkStatus();
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}
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Status DoUpdate(NativeSha256Context& ctx, ConstByteSpan data) {
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if (mbedtls_sha256_update_ret(
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&ctx,
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reinterpret_cast<const unsigned char*>(data.data()),
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data.size())) {
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return Status::Internal();
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}
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return OkStatus();
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}
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Status DoFinal(NativeSha256Context& ctx, ByteSpan out_digest) {
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if (mbedtls_sha256_finish_ret(
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&ctx, reinterpret_cast<unsigned char*>(out_digest.data()))) {
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return Status::Internal();
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}
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return OkStatus();
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}
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} // namespace pw::crypto::sha256::backend
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