blob: ed7c07299a40fef713c6bff8e0bb0fed1e082a4c [file] [log] [blame]
* Copyright 2004 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.
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <memory>
#include <string>
#include "webrtc/rtc_base/checks.h"
#include "webrtc/rtc_base/constructormagic.h"
#include "webrtc/rtc_base/sslidentity.h"
typedef struct ssl_ctx_st SSL_CTX;
namespace rtc {
// OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object,
// which is reference counted inside the OpenSSL library.
class OpenSSLKeyPair {
explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
RTC_DCHECK(pkey_ != nullptr);
static 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 OpenSSLKeyPair* FromPrivateKeyPEMString(
const std::string& pem_string);
virtual ~OpenSSLKeyPair();
virtual OpenSSLKeyPair* GetReference();
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;
void AddReference();
EVP_PKEY* pkey_;
// OpenSSLCertificate encapsulates an OpenSSL X509* certificate object,
// which is also reference counted inside the OpenSSL library.
class OpenSSLCertificate : public SSLCertificate {
// Caller retains ownership of the X509 object.
explicit OpenSSLCertificate(X509* x509) : x509_(x509) {
static OpenSSLCertificate* Generate(OpenSSLKeyPair* key_pair,
const SSLIdentityParams& params);
static OpenSSLCertificate* FromPEMString(const std::string& pem_string);
~OpenSSLCertificate() override;
OpenSSLCertificate* GetReference() const override;
X509* x509() const { return x509_; }
std::string ToPEMString() const override;
void ToDER(Buffer* der_buffer) const override;
bool operator==(const OpenSSLCertificate& other) const;
bool operator!=(const OpenSSLCertificate& other) const;
// Compute the digest of the certificate given algorithm
bool ComputeDigest(const std::string& algorithm,
unsigned char* digest,
size_t size,
size_t* length) const override;
// Compute the digest of a certificate as an X509 *
static bool ComputeDigest(const X509* x509,
const std::string& algorithm,
unsigned char* digest,
size_t size,
size_t* length);
bool GetSignatureDigestAlgorithm(std::string* algorithm) const override;
std::unique_ptr<SSLCertChain> GetChain() const override;
int64_t CertificateExpirationTime() const override;
void AddReference() const;
X509* x509_;
// Holds a keypair and certificate together, and a method to generate
// them consistently.
class OpenSSLIdentity : public SSLIdentity {
static OpenSSLIdentity* GenerateWithExpiration(const std::string& common_name,
const KeyParams& key_params,
time_t certificate_lifetime);
static OpenSSLIdentity* GenerateForTest(const SSLIdentityParams& params);
static SSLIdentity* FromPEMStrings(const std::string& private_key,
const std::string& certificate);
~OpenSSLIdentity() override;
const OpenSSLCertificate& certificate() const override;
OpenSSLIdentity* GetReference() const override;
// Configure an SSL context object to use our key and certificate.
bool ConfigureIdentity(SSL_CTX* ctx);
std::string PrivateKeyToPEMString() const override;
std::string PublicKeyToPEMString() const override;
bool operator==(const OpenSSLIdentity& other) const;
bool operator!=(const OpenSSLIdentity& other) const;
OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate);
static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params);
std::unique_ptr<OpenSSLKeyPair> key_pair_;
std::unique_ptr<OpenSSLCertificate> certificate_;
} // namespace rtc