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/*
* Copyright 2020 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_OPENSSL_KEY_PAIR_H_
#define RTC_BASE_OPENSSL_KEY_PAIR_H_
#include <openssl/ossl_typ.h>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "rtc_base/checks.h"
#include "rtc_base/ssl_identity.h"
namespace rtc {
// OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object,
// which is reference counted inside the OpenSSL library.
class OpenSSLKeyPair final {
public:
// Takes ownership of the key.
explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
RTC_DCHECK(pkey_ != nullptr);
}
static std::unique_ptr<OpenSSLKeyPair> Generate(const KeyParams& key_params);
// Constructs a key pair from the private key PEM string. This must not result
// in missing public key parameters. Returns null on error.
static std::unique_ptr<OpenSSLKeyPair> FromPrivateKeyPEMString(
absl::string_view pem_string);
~OpenSSLKeyPair();
OpenSSLKeyPair(const OpenSSLKeyPair&) = delete;
OpenSSLKeyPair& operator=(const OpenSSLKeyPair&) = delete;
std::unique_ptr<OpenSSLKeyPair> Clone();
EVP_PKEY* pkey() const { return pkey_; }
std::string PrivateKeyToPEMString() const;
std::string PublicKeyToPEMString() const;
bool operator==(const OpenSSLKeyPair& other) const;
bool operator!=(const OpenSSLKeyPair& other) const;
private:
void AddReference();
EVP_PKEY* pkey_;
};
} // namespace rtc
#endif // RTC_BASE_OPENSSL_KEY_PAIR_H_
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