henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 11 | #ifndef RTC_BASE_OPENSSLIDENTITY_H_ |
| 12 | #define RTC_BASE_OPENSSLIDENTITY_H_ |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 13 | |
Henrik Kjellander | ec78f1c | 2017-06-29 07:52:50 +0200 | [diff] [blame] | 14 | #include <openssl/evp.h> |
| 15 | #include <openssl/x509.h> |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 16 | |
Henrik Kjellander | ec78f1c | 2017-06-29 07:52:50 +0200 | [diff] [blame] | 17 | #include <memory> |
| 18 | #include <string> |
| 19 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 20 | #include "rtc_base/checks.h" |
| 21 | #include "rtc_base/constructormagic.h" |
| 22 | #include "rtc_base/sslidentity.h" |
Henrik Kjellander | ec78f1c | 2017-06-29 07:52:50 +0200 | [diff] [blame] | 23 | |
| 24 | typedef struct ssl_ctx_st SSL_CTX; |
| 25 | |
| 26 | namespace rtc { |
| 27 | |
| 28 | // OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object, |
| 29 | // which is reference counted inside the OpenSSL library. |
| 30 | class OpenSSLKeyPair { |
| 31 | public: |
| 32 | explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) { |
| 33 | RTC_DCHECK(pkey_ != nullptr); |
| 34 | } |
| 35 | |
| 36 | static OpenSSLKeyPair* Generate(const KeyParams& key_params); |
| 37 | // Constructs a key pair from the private key PEM string. This must not result |
| 38 | // in missing public key parameters. Returns null on error. |
| 39 | static OpenSSLKeyPair* FromPrivateKeyPEMString( |
| 40 | const std::string& pem_string); |
| 41 | |
| 42 | virtual ~OpenSSLKeyPair(); |
| 43 | |
| 44 | virtual OpenSSLKeyPair* GetReference(); |
| 45 | |
| 46 | EVP_PKEY* pkey() const { return pkey_; } |
| 47 | std::string PrivateKeyToPEMString() const; |
| 48 | std::string PublicKeyToPEMString() const; |
| 49 | bool operator==(const OpenSSLKeyPair& other) const; |
| 50 | bool operator!=(const OpenSSLKeyPair& other) const; |
| 51 | |
| 52 | private: |
| 53 | void AddReference(); |
| 54 | |
| 55 | EVP_PKEY* pkey_; |
| 56 | |
| 57 | RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLKeyPair); |
| 58 | }; |
| 59 | |
| 60 | // OpenSSLCertificate encapsulates an OpenSSL X509* certificate object, |
| 61 | // which is also reference counted inside the OpenSSL library. |
| 62 | class OpenSSLCertificate : public SSLCertificate { |
| 63 | public: |
| 64 | // Caller retains ownership of the X509 object. |
| 65 | explicit OpenSSLCertificate(X509* x509) : x509_(x509) { |
| 66 | AddReference(); |
| 67 | } |
| 68 | |
| 69 | static OpenSSLCertificate* Generate(OpenSSLKeyPair* key_pair, |
| 70 | const SSLIdentityParams& params); |
| 71 | static OpenSSLCertificate* FromPEMString(const std::string& pem_string); |
| 72 | |
| 73 | ~OpenSSLCertificate() override; |
| 74 | |
| 75 | OpenSSLCertificate* GetReference() const override; |
| 76 | |
| 77 | X509* x509() const { return x509_; } |
| 78 | |
| 79 | std::string ToPEMString() const override; |
| 80 | void ToDER(Buffer* der_buffer) const override; |
| 81 | bool operator==(const OpenSSLCertificate& other) const; |
| 82 | bool operator!=(const OpenSSLCertificate& other) const; |
| 83 | |
| 84 | // Compute the digest of the certificate given algorithm |
| 85 | bool ComputeDigest(const std::string& algorithm, |
| 86 | unsigned char* digest, |
| 87 | size_t size, |
| 88 | size_t* length) const override; |
| 89 | |
| 90 | // Compute the digest of a certificate as an X509 * |
| 91 | static bool ComputeDigest(const X509* x509, |
| 92 | const std::string& algorithm, |
| 93 | unsigned char* digest, |
| 94 | size_t size, |
| 95 | size_t* length); |
| 96 | |
| 97 | bool GetSignatureDigestAlgorithm(std::string* algorithm) const override; |
| 98 | std::unique_ptr<SSLCertChain> GetChain() const override; |
| 99 | |
| 100 | int64_t CertificateExpirationTime() const override; |
| 101 | |
| 102 | private: |
| 103 | void AddReference() const; |
| 104 | |
| 105 | X509* x509_; |
| 106 | |
| 107 | RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLCertificate); |
| 108 | }; |
| 109 | |
| 110 | // Holds a keypair and certificate together, and a method to generate |
| 111 | // them consistently. |
| 112 | class OpenSSLIdentity : public SSLIdentity { |
| 113 | public: |
| 114 | static OpenSSLIdentity* GenerateWithExpiration(const std::string& common_name, |
| 115 | const KeyParams& key_params, |
| 116 | time_t certificate_lifetime); |
| 117 | static OpenSSLIdentity* GenerateForTest(const SSLIdentityParams& params); |
| 118 | static SSLIdentity* FromPEMStrings(const std::string& private_key, |
| 119 | const std::string& certificate); |
| 120 | ~OpenSSLIdentity() override; |
| 121 | |
| 122 | const OpenSSLCertificate& certificate() const override; |
| 123 | OpenSSLIdentity* GetReference() const override; |
| 124 | |
| 125 | // Configure an SSL context object to use our key and certificate. |
| 126 | bool ConfigureIdentity(SSL_CTX* ctx); |
| 127 | |
| 128 | std::string PrivateKeyToPEMString() const override; |
| 129 | std::string PublicKeyToPEMString() const override; |
| 130 | bool operator==(const OpenSSLIdentity& other) const; |
| 131 | bool operator!=(const OpenSSLIdentity& other) const; |
| 132 | |
| 133 | private: |
| 134 | OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate); |
| 135 | |
| 136 | static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params); |
| 137 | |
| 138 | std::unique_ptr<OpenSSLKeyPair> key_pair_; |
| 139 | std::unique_ptr<OpenSSLCertificate> certificate_; |
| 140 | |
| 141 | RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLIdentity); |
| 142 | }; |
| 143 | |
| 144 | |
| 145 | } // namespace rtc |
henrike@webrtc.org | f048872 | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 146 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 147 | #endif // RTC_BASE_OPENSSLIDENTITY_H_ |