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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "util/crypto/secure_hash.h"
#include <stddef.h>
#include <cstring>
#include "openssl/mem.h"
#include "platform/api/logging.h"
#include "util/crypto/openssl_util.h"
namespace openscreen {
SecureHash::SecureHash(const EVP_MD* type) {
EVP_DigestInit(ctx_.get(), type);
}
SecureHash::SecureHash(const SecureHash& other) {
*this = other;
}
SecureHash& SecureHash::operator=(const SecureHash& other) {
EVP_MD_CTX_copy_ex(this->ctx_.get(), other.ctx_.get());
return *this;
}
SecureHash::SecureHash(SecureHash&& other) = default;
SecureHash& SecureHash::operator=(SecureHash&& other) = default;
SecureHash::~SecureHash() = default;
void SecureHash::Update(const uint8_t* input, size_t len) {
EVP_DigestUpdate(ctx_.get(), input, len);
}
void SecureHash::Finish(uint8_t* output) {
EVP_DigestFinal(ctx_.get(), output, nullptr);
}
void SecureHash::Update(const std::string& input) {
Update(reinterpret_cast<const uint8_t*>(input.data()), input.length());
}
void SecureHash::Finish(char* output) {
Finish(reinterpret_cast<uint8_t*>(output));
}
size_t SecureHash::GetHashLength() const {
return EVP_MD_CTX_size(ctx_.get());
}
} // namespace openscreen
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