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/*
* 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.
*/
#ifndef WEBRTC_BASE_OPENSSLIDENTITY_H_
#define WEBRTC_BASE_OPENSSLIDENTITY_H_
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <string>
#include "webrtc/base/common.h"
#include "webrtc/base/scoped_ptr.h"
#include "webrtc/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 {
public:
explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
ASSERT(pkey_ != NULL);
}
static OpenSSLKeyPair* Generate(const KeyParams& key_params);
virtual ~OpenSSLKeyPair();
virtual OpenSSLKeyPair* GetReference();
EVP_PKEY* pkey() const { return pkey_; }
private:
void AddReference();
EVP_PKEY* pkey_;
RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLKeyPair);
};
// OpenSSLCertificate encapsulates an OpenSSL X509* certificate object,
// which is also reference counted inside the OpenSSL library.
class OpenSSLCertificate : public SSLCertificate {
public:
// Caller retains ownership of the X509 object.
explicit OpenSSLCertificate(X509* x509) : x509_(x509) {
AddReference();
}
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;
// 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;
bool GetChain(SSLCertChain** chain) const override;
private:
void AddReference() const;
X509* x509_;
RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLCertificate);
};
// Holds a keypair and certificate together, and a method to generate
// them consistently.
class OpenSSLIdentity : public SSLIdentity {
public:
static OpenSSLIdentity* Generate(const std::string& common_name,
const KeyParams& key_params);
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);
private:
OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate);
static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params);
scoped_ptr<OpenSSLKeyPair> key_pair_;
scoped_ptr<OpenSSLCertificate> certificate_;
RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLIdentity);
};
} // namespace rtc
#endif // WEBRTC_BASE_OPENSSLIDENTITY_H_
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