/* * $Id: ossl.c 47627 2014-09-18 15:26:17Z usa $ * 'OpenSSL for Ruby' project * Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz> * All rights reserved. */ /* * This program is licenced under the same licence as Ruby. * (See the file 'LICENCE'.) */ #include "ossl.h" #include <stdarg.h> /* for ossl_raise */ /* * String to HEXString conversion */ int string2hex(const unsigned char *buf, int buf_len, char **hexbuf, int *hexbuf_len) { static const char hex[]="0123456789abcdef"; int i, len = 2 * buf_len; if (buf_len < 0 || len < buf_len) { /* PARANOIA? */ return -1; } if (!hexbuf) { /* if no buf, return calculated len */ if (hexbuf_len) { *hexbuf_len = len; } return len; } if (!(*hexbuf = OPENSSL_malloc(len + 1))) { return -1; } for (i = 0; i < buf_len; i++) { (*hexbuf)[2 * i] = hex[((unsigned char)buf[i]) >> 4]; (*hexbuf)[2 * i + 1] = hex[buf[i] & 0x0f]; } (*hexbuf)[2 * i] = '\0'; if (hexbuf_len) { *hexbuf_len = len; } return len; } /* * Data Conversion */ #define OSSL_IMPL_ARY2SK(name, type, expected_class, dup) \ STACK_OF(type) * \ ossl_##name##_ary2sk0(VALUE ary) \ { \ STACK_OF(type) *sk; \ VALUE val; \ type *x; \ int i; \ \ Check_Type(ary, T_ARRAY); \ sk = sk_##type##_new_null(); \ if (!sk) ossl_raise(eOSSLError, NULL); \ \ for (i = 0; i < RARRAY_LEN(ary); i++) { \ val = rb_ary_entry(ary, i); \ if (!rb_obj_is_kind_of(val, expected_class)) { \ sk_##type##_pop_free(sk, type##_free); \ ossl_raise(eOSSLError, "object in array not" \ " of class ##type##"); \ } \ x = dup(val); /* NEED TO DUP */ \ sk_##type##_push(sk, x); \ } \ return sk; \ } \ \ STACK_OF(type) * \ ossl_protect_##name##_ary2sk(VALUE ary, int *status) \ { \ return (STACK_OF(type)*)rb_protect( \ (VALUE(*)_((VALUE)))ossl_##name##_ary2sk0, \ ary, \ status); \ } \ \ STACK_OF(type) * \ ossl_##name##_ary2sk(VALUE ary) \ { \ STACK_OF(type) *sk; \ int status = 0; \ \ sk = ossl_protect_##name##_ary2sk(ary, &status); \ if (status) rb_jump_tag(status); \ \ return sk; \ } OSSL_IMPL_ARY2SK(x509, X509, cX509Cert, DupX509CertPtr) #define OSSL_IMPL_SK2ARY(name, type) \ VALUE \ ossl_##name##_sk2ary(STACK_OF(type) *sk) \ { \ type *t; \ int i, num; \ VALUE ary; \ \ if (!sk) { \ OSSL_Debug("empty sk!"); \ return Qnil; \ } \ num = sk_##type##_num(sk); \ if (num < 0) { \ OSSL_Debug("items in sk < -1???"); \ return rb_ary_new(); \ } \ ary = rb_ary_new2(num); \ \ for (i=0; i<num; i++) { \ t = sk_##type##_value(sk, i); \ rb_ary_push(ary, ossl_##name##_new(t)); \ } \ return ary; \ } OSSL_IMPL_SK2ARY(x509, X509) OSSL_IMPL_SK2ARY(x509crl, X509_CRL) OSSL_IMPL_SK2ARY(x509name, X509_NAME) static VALUE ossl_str_new(int size) { return rb_str_new(0, size); } VALUE ossl_buf2str(char *buf, int len) { VALUE str; int status = 0; str = rb_protect((VALUE(*)_((VALUE)))ossl_str_new, len, &status); if(!NIL_P(str)) memcpy(RSTRING_PTR(str), buf, len); OPENSSL_free(buf); if(status) rb_jump_tag(status); return str; } /* * our default PEM callback */ static VALUE ossl_pem_passwd_cb0(VALUE flag) { VALUE pass; pass = rb_yield(flag); SafeStringValue(pass); return pass; } int ossl_pem_passwd_cb(char *buf, int max_len, int flag, void *pwd) { int len, status = 0; VALUE rflag, pass; if (pwd || !rb_block_given_p()) return PEM_def_callback(buf, max_len, flag, pwd); while (1) { /* * when the flag is nonzero, this passphrase * will be used to perform encryption; otherwise it will * be used to perform decryption. */ rflag = flag ? Qtrue : Qfalse; pass = rb_protect(ossl_pem_passwd_cb0, rflag, &status); if (status) { /* ignore an exception raised. */ rb_set_errinfo(Qnil); return -1; } len = RSTRING_LENINT(pass); if (len < 4) { /* 4 is OpenSSL hardcoded limit */ rb_warning("password must be longer than 4 bytes"); continue; } if (len > max_len) { rb_warning("password must be shorter then %d bytes", max_len-1); continue; } memcpy(buf, RSTRING_PTR(pass), len); break; } return len; } /* * Verify callback */ int ossl_verify_cb_idx; VALUE ossl_call_verify_cb_proc(struct ossl_verify_cb_args *args) { return rb_funcall(args->proc, rb_intern("call"), 2, args->preverify_ok, args->store_ctx); } int ossl_verify_cb(int ok, X509_STORE_CTX *ctx) { VALUE proc, rctx, ret; struct ossl_verify_cb_args args; int state = 0; proc = (VALUE)X509_STORE_CTX_get_ex_data(ctx, ossl_verify_cb_idx); if ((void*)proc == 0) proc = (VALUE)X509_STORE_get_ex_data(ctx->ctx, ossl_verify_cb_idx); if ((void*)proc == 0) return ok; if (!NIL_P(proc)) { ret = Qfalse; rctx = rb_protect((VALUE(*)(VALUE))ossl_x509stctx_new, (VALUE)ctx, &state); if (state) { rb_set_errinfo(Qnil); rb_warn("StoreContext initialization failure"); } else { args.proc = proc; args.preverify_ok = ok ? Qtrue : Qfalse; args.store_ctx = rctx; ret = rb_protect((VALUE(*)(VALUE))ossl_call_verify_cb_proc, (VALUE)&args, &state); if (state) { rb_set_errinfo(Qnil); rb_warn("exception in verify_callback is ignored"); } ossl_x509stctx_clear_ptr(rctx); } if (ret == Qtrue) { X509_STORE_CTX_set_error(ctx, X509_V_OK); ok = 1; } else{ if (X509_STORE_CTX_get_error(ctx) == X509_V_OK) { X509_STORE_CTX_set_error(ctx, X509_V_ERR_CERT_REJECTED); } ok = 0; } } return ok; } /* * main module */ VALUE mOSSL; /* * OpenSSLError < StandardError */ VALUE eOSSLError; /* * Convert to DER string */ ID ossl_s_to_der; VALUE ossl_to_der(VALUE obj) { VALUE tmp; tmp = rb_funcall(obj, ossl_s_to_der, 0); StringValue(tmp); return tmp; } VALUE ossl_to_der_if_possible(VALUE obj) { if(rb_respond_to(obj, ossl_s_to_der)) return ossl_to_der(obj); return obj; } /* * Errors */ static VALUE ossl_make_error(VALUE exc, const char *fmt, va_list args) { VALUE str = Qnil; const char *msg; long e; #ifdef HAVE_ERR_PEEK_LAST_ERROR e = ERR_peek_last_error(); #else e = ERR_peek_error(); #endif if (fmt) { str = rb_vsprintf(fmt, args); } if (e) { if (dOSSL == Qtrue) /* FULL INFO */ msg = ERR_error_string(e, NULL); else msg = ERR_reason_error_string(e); if (NIL_P(str)) { if (msg) str = rb_str_new_cstr(msg); } else { if (RSTRING_LEN(str)) rb_str_cat2(str, ": "); rb_str_cat2(str, msg ? msg : "(null)"); } } if (dOSSL == Qtrue){ /* show all errors on the stack */ while ((e = ERR_get_error()) != 0){ rb_warn("error on stack: %s", ERR_error_string(e, NULL)); } } ERR_clear_error(); if (NIL_P(str)) str = rb_str_new(0, 0); return rb_exc_new3(exc, str); } void ossl_raise(VALUE exc, const char *fmt, ...) { va_list args; VALUE err; va_start(args, fmt); err = ossl_make_error(exc, fmt, args); va_end(args); rb_exc_raise(err); } VALUE ossl_exc_new(VALUE exc, const char *fmt, ...) { va_list args; VALUE err; va_start(args, fmt); err = ossl_make_error(exc, fmt, args); va_end(args); return err; } /* * call-seq: * OpenSSL.errors -> [String...] * * See any remaining errors held in queue. * * Any errors you see here are probably due to a bug in ruby's OpenSSL implementation. */ VALUE ossl_get_errors() { VALUE ary; long e; ary = rb_ary_new(); while ((e = ERR_get_error()) != 0){ rb_ary_push(ary, rb_str_new2(ERR_error_string(e, NULL))); } return ary; } /* * Debug */ VALUE dOSSL; #if !defined(HAVE_VA_ARGS_MACRO) void ossl_debug(const char *fmt, ...) { va_list args; if (dOSSL == Qtrue) { fprintf(stderr, "OSSL_DEBUG: "); va_start(args, fmt); vfprintf(stderr, fmt, args); va_end(args); fprintf(stderr, " [CONTEXT N/A]\n"); } } #endif /* * call-seq: * OpenSSL.debug -> true | false */ static VALUE ossl_debug_get(VALUE self) { return dOSSL; } /* * call-seq: * OpenSSL.debug = boolean -> boolean * * Turns on or off CRYPTO_MEM_CHECK. * Also shows some debugging message on stderr. */ static VALUE ossl_debug_set(VALUE self, VALUE val) { VALUE old = dOSSL; dOSSL = val; if (old != dOSSL) { if (dOSSL == Qtrue) { CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); fprintf(stderr, "OSSL_DEBUG: IS NOW ON!\n"); } else if (old == Qtrue) { CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF); fprintf(stderr, "OSSL_DEBUG: IS NOW OFF!\n"); } } return val; } /* * call-seq: * OpenSSL.fips_mode = boolean -> boolean * * Turns FIPS mode on or off. Turning on FIPS mode will obviously only have an * effect for FIPS-capable installations of the OpenSSL library. Trying to do * so otherwise will result in an error. * * === Examples * * OpenSSL.fips_mode = true # turn FIPS mode on * OpenSSL.fips_mode = false # and off again */ static VALUE ossl_fips_mode_set(VALUE self, VALUE enabled) { #ifdef HAVE_OPENSSL_FIPS if (RTEST(enabled)) { int mode = FIPS_mode(); if(!mode && !FIPS_mode_set(1)) /* turning on twice leads to an error */ ossl_raise(eOSSLError, "Turning on FIPS mode failed"); } else { if(!FIPS_mode_set(0)) /* turning off twice is OK */ ossl_raise(eOSSLError, "Turning off FIPS mode failed"); } return enabled; #else if (RTEST(enabled)) ossl_raise(eOSSLError, "This version of OpenSSL does not support FIPS mode"); return enabled; #endif } /* * OpenSSL provides SSL, TLS and general purpose cryptography. It wraps the * OpenSSL[http://www.openssl.org/] library. * * = Examples * * All examples assume you have loaded OpenSSL with: * * require 'openssl' * * These examples build atop each other. For example the key created in the * next is used in throughout these examples. * * == Keys * * === Creating a Key * * This example creates a 2048 bit RSA keypair and writes it to the current * directory. * * key = OpenSSL::PKey::RSA.new 2048 * * open 'private_key.pem', 'w' do |io| io.write key.to_pem end * open 'public_key.pem', 'w' do |io| io.write key.public_key.to_pem end * * === Exporting a Key * * Keys saved to disk without encryption are not secure as anyone who gets * ahold of the key may use it unless it is encrypted. In order to securely * export a key you may export it with a pass phrase. * * cipher = OpenSSL::Cipher.new 'AES-128-CBC' * pass_phrase = 'my secure pass phrase goes here' * * key_secure = key.export cipher, pass_phrase * * open 'private.secure.pem', 'w' do |io| * io.write key_secure * end * * OpenSSL::Cipher.ciphers returns a list of available ciphers. * * === Loading a Key * * A key can also be loaded from a file. * * key2 = OpenSSL::PKey::RSA.new File.read 'private_key.pem' * key2.public? # => true * * or * * key3 = OpenSSL::PKey::RSA.new File.read 'public_key.pem' * key3.private? # => false * * === Loading an Encrypted Key * * OpenSSL will prompt you for your pass phrase when loading an encrypted key. * If you will not be able to type in the pass phrase you may provide it when * loading the key: * * key4_pem = File.read 'private.secure.pem' * key4 = OpenSSL::PKey::RSA.new key4_pem, pass_phrase * * == RSA Encryption * * RSA provides encryption and decryption using the public and private keys. * You can use a variety of padding methods depending upon the intended use of * encrypted data. * * === Encryption & Decryption * * Asymmetric public/private key encryption is slow and victim to attack in * cases where it is used without padding or directly to encrypt larger chunks * of data. Typical use cases for RSA encryption involve "wrapping" a symmetric * key with the public key of the recipient who would "unwrap" that symmetric * key again using their private key. * The following illustrates a simplified example of such a key transport * scheme. It shouldn't be used in practice, though, standardized protocols * should always be preferred. * * wrapped_key = key.public_encrypt key * * A symmetric key encrypted with the public key can only be decrypted with * the corresponding private key of the recipient. * * original_key = key.private_decrypt wrapped_key * * By default PKCS#1 padding will be used, but it is also possible to use * other forms of padding, see PKey::RSA for further details. * * === Signatures * * Using "private_encrypt" to encrypt some data with the private key is * equivalent to applying a digital signature to the data. A verifying * party may validate the signature by comparing the result of decrypting * the signature with "public_decrypt" to the original data. However, * OpenSSL::PKey already has methods "sign" and "verify" that handle * digital signatures in a standardized way - "private_encrypt" and * "public_decrypt" shouldn't be used in practice. * * To sign a document, a cryptographically secure hash of the document is * computed first, which is then signed using the private key. * * digest = OpenSSL::Digest::SHA256.new * signature = key.sign digest, document * * To validate the signature, again a hash of the document is computed and * the signature is decrypted using the public key. The result is then * compared to the hash just computed, if they are equal the signature was * valid. * * digest = OpenSSL::Digest::SHA256.new * if key.verify digest, signature, document * puts 'Valid' * else * puts 'Invalid' * end * * == PBKDF2 Password-based Encryption * * If supported by the underlying OpenSSL version used, Password-based * Encryption should use the features of PKCS5. If not supported or if * required by legacy applications, the older, less secure methods specified * in RFC 2898 are also supported (see below). * * PKCS5 supports PBKDF2 as it was specified in PKCS#5 * v2.0[http://www.rsa.com/rsalabs/node.asp?id=2127]. It still uses a * password, a salt, and additionally a number of iterations that will * slow the key derivation process down. The slower this is, the more work * it requires being able to brute-force the resulting key. * * === Encryption * * The strategy is to first instantiate a Cipher for encryption, and * then to generate a random IV plus a key derived from the password * using PBKDF2. PKCS #5 v2.0 recommends at least 8 bytes for the salt, * the number of iterations largely depends on the hardware being used. * * cipher = OpenSSL::Cipher.new 'AES-128-CBC' * cipher.encrypt * iv = cipher.random_iv * * pwd = 'some hopefully not to easily guessable password' * salt = OpenSSL::Random.random_bytes 16 * iter = 20000 * key_len = cipher.key_len * digest = OpenSSL::Digest::SHA256.new * * key = OpenSSL::PKCS5.pbkdf2_hmac(pwd, salt, iter, key_len, digest) * cipher.key = key * * Now encrypt the data: * * encrypted = cipher.update document * encrypted << cipher.final * * === Decryption * * Use the same steps as before to derive the symmetric AES key, this time * setting the Cipher up for decryption. * * cipher = OpenSSL::Cipher.new 'AES-128-CBC' * cipher.decrypt * cipher.iv = iv # the one generated with #random_iv * * pwd = 'some hopefully not to easily guessable password' * salt = ... # the one generated above * iter = 20000 * key_len = cipher.key_len * digest = OpenSSL::Digest::SHA256.new * * key = OpenSSL::PKCS5.pbkdf2_hmac(pwd, salt, iter, key_len, digest) * cipher.key = key * * Now decrypt the data: * * decrypted = cipher.update encrypted * decrypted << cipher.final * * == PKCS #5 Password-based Encryption * * PKCS #5 is a password-based encryption standard documented at * RFC2898[http://www.ietf.org/rfc/rfc2898.txt]. It allows a short password or * passphrase to be used to create a secure encryption key. If possible, PBKDF2 * as described above should be used if the circumstances allow it. * * PKCS #5 uses a Cipher, a pass phrase and a salt to generate an encryption * key. * * pass_phrase = 'my secure pass phrase goes here' * salt = '8 octets' * * === Encryption * * First set up the cipher for encryption * * encrypter = OpenSSL::Cipher.new 'AES-128-CBC' * encrypter.encrypt * encrypter.pkcs5_keyivgen pass_phrase, salt * * Then pass the data you want to encrypt through * * encrypted = encrypter.update 'top secret document' * encrypted << encrypter.final * * === Decryption * * Use a new Cipher instance set up for decryption * * decrypter = OpenSSL::Cipher.new 'AES-128-CBC' * decrypter.decrypt * decrypter.pkcs5_keyivgen pass_phrase, salt * * Then pass the data you want to decrypt through * * plain = decrypter.update encrypted * plain << decrypter.final * * == X509 Certificates * * === Creating a Certificate * * This example creates a self-signed certificate using an RSA key and a SHA1 * signature. * * name = OpenSSL::X509::Name.parse 'CN=nobody/DC=example' * * cert = OpenSSL::X509::Certificate.new * cert.version = 2 * cert.serial = 0 * cert.not_before = Time.now * cert.not_after = Time.now + 3600 * * cert.public_key = key.public_key * cert.subject = name * * === Certificate Extensions * * You can add extensions to the certificate with * OpenSSL::SSL::ExtensionFactory to indicate the purpose of the certificate. * * extension_factory = OpenSSL::X509::ExtensionFactory.new nil, cert * * cert.add_extension \ * extension_factory.create_extension('basicConstraints', 'CA:FALSE', true) * * cert.add_extension \ * extension_factory.create_extension( * 'keyUsage', 'keyEncipherment,dataEncipherment,digitalSignature') * * cert.add_extension \ * extension_factory.create_extension('subjectKeyIdentifier', 'hash') * * The list of supported extensions (and in some cases their possible values) * can be derived from the "objects.h" file in the OpenSSL source code. * * === Signing a Certificate * * To sign a certificate set the issuer and use OpenSSL::X509::Certificate#sign * with a digest algorithm. This creates a self-signed cert because we're using * the same name and key to sign the certificate as was used to create the * certificate. * * cert.issuer = name * cert.sign key, OpenSSL::Digest::SHA1.new * * open 'certificate.pem', 'w' do |io| io.write cert.to_pem end * * === Loading a Certificate * * Like a key, a cert can also be loaded from a file. * * cert2 = OpenSSL::X509::Certificate.new File.read 'certificate.pem' * * === Verifying a Certificate * * Certificate#verify will return true when a certificate was signed with the * given public key. * * raise 'certificate can not be verified' unless cert2.verify key * * == Certificate Authority * * A certificate authority (CA) is a trusted third party that allows you to * verify the ownership of unknown certificates. The CA issues key signatures * that indicate it trusts the user of that key. A user encountering the key * can verify the signature by using the CA's public key. * * === CA Key * * CA keys are valuable, so we encrypt and save it to disk and make sure it is * not readable by other users. * * ca_key = OpenSSL::PKey::RSA.new 2048 * * cipher = OpenSSL::Cipher::Cipher.new 'AES-128-CBC' * * open 'ca_key.pem', 'w', 0400 do |io| * io.write key.export(cipher, pass_phrase) * end * * === CA Certificate * * A CA certificate is created the same way we created a certificate above, but * with different extensions. * * ca_name = OpenSSL::X509::Name.parse 'CN=ca/DC=example' * * ca_cert = OpenSSL::X509::Certificate.new * ca_cert.serial = 0 * ca_cert.version = 2 * ca_cert.not_before = Time.now * ca_cert.not_after = Time.now + 86400 * * ca_cert.public_key = ca_key.public_key * ca_cert.subject = ca_name * ca_cert.issuer = ca_name * * extension_factory = OpenSSL::X509::ExtensionFactory.new * extension_factory.subject_certificate = ca_cert * extension_factory.issuer_certificate = ca_cert * * ca_cert.add_extension \ * extension_factory.create_extension('subjectKeyIdentifier', 'hash') * * This extension indicates the CA's key may be used as a CA. * * ca_cert.add_extension \ * extension_factory.create_extension('basicConstraints', 'CA:TRUE', true) * * This extension indicates the CA's key may be used to verify signatures on * both certificates and certificate revocations. * * ca_cert.add_extension \ * extension_factory.create_extension( * 'keyUsage', 'cRLSign,keyCertSign', true) * * Root CA certificates are self-signed. * * ca_cert.sign ca_key, OpenSSL::Digest::SHA1.new * * The CA certificate is saved to disk so it may be distributed to all the * users of the keys this CA will sign. * * open 'ca_cert.pem', 'w' do |io| * io.write ca_cert.to_pem * end * * === Certificate Signing Request * * The CA signs keys through a Certificate Signing Request (CSR). The CSR * contains the information necessary to identify the key. * * csr = OpenSSL::X509::Request.new * csr.version = 0 * csr.subject = name * csr.public_key = key.public_key * csr.sign key, OpenSSL::Digest::SHA1.new * * A CSR is saved to disk and sent to the CA for signing. * * open 'csr.pem', 'w' do |io| * io.write csr.to_pem * end * * === Creating a Certificate from a CSR * * Upon receiving a CSR the CA will verify it before signing it. A minimal * verification would be to check the CSR's signature. * * csr = OpenSSL::X509::Request.new File.read 'csr.pem' * * raise 'CSR can not be verified' unless csr.verify csr.public_key * * After verification a certificate is created, marked for various usages, * signed with the CA key and returned to the requester. * * csr_cert = OpenSSL::X509::Certificate.new * csr_cert.serial = 0 * csr_cert.version = 2 * csr_cert.not_before = Time.now * csr_cert.not_after = Time.now + 600 * * csr_cert.subject = csr.subject * csr_cert.public_key = csr.public_key * csr_cert.issuer = ca_cert.subject * * extension_factory = OpenSSL::X509::ExtensionFactory.new * extension_factory.subject_certificate = csr_cert * extension_factory.issuer_certificate = ca_cert * * csr_cert.add_extension \ * extension_factory.create_extension('basicConstraints', 'CA:FALSE') * * csr_cert.add_extension \ * extension_factory.create_extension( * 'keyUsage', 'keyEncipherment,dataEncipherment,digitalSignature') * * csr_cert.add_extension \ * extension_factory.create_extension('subjectKeyIdentifier', 'hash') * * csr_cert.sign ca_key, OpenSSL::Digest::SHA1.new * * open 'csr_cert.pem', 'w' do |io| * io.write csr_cert.to_pem * end * * == SSL and TLS Connections * * Using our created key and certificate we can create an SSL or TLS connection. * An SSLContext is used to set up an SSL session. * * context = OpenSSL::SSL::SSLContext.new * * === SSL Server * * An SSL server requires the certificate and private key to communicate * securely with its clients: * * context.cert = cert * context.key = key * * Then create an SSLServer with a TCP server socket and the context. Use the * SSLServer like an ordinary TCP server. * * require 'socket' * * tcp_server = TCPServer.new 5000 * ssl_server = OpenSSL::SSL::SSLServer.new tcp_server, context * * loop do * ssl_connection = ssl_server.accept * * data = connection.gets * * response = "I got #{data.dump}" * puts response * * connection.puts "I got #{data.dump}" * connection.close * end * * === SSL client * * An SSL client is created with a TCP socket and the context. * SSLSocket#connect must be called to initiate the SSL handshake and start * encryption. A key and certificate are not required for the client socket. * * require 'socket' * * tcp_client = TCPSocket.new 'localhost', 5000 * ssl_client = OpenSSL::SSL::SSLSocket.new client_socket, context * ssl_client.connect * * ssl_client.puts "hello server!" * puts ssl_client.gets * * === Peer Verification * * An unverified SSL connection does not provide much security. For enhanced * security the client or server can verify the certificate of its peer. * * The client can be modified to verify the server's certificate against the * certificate authority's certificate: * * context.ca_file = 'ca_cert.pem' * context.verify_mode = OpenSSL::SSL::VERIFY_PEER * * require 'socket' * * tcp_client = TCPSocket.new 'localhost', 5000 * ssl_client = OpenSSL::SSL::SSLSocket.new client_socket, context * ssl_client.connect * * ssl_client.puts "hello server!" * puts ssl_client.gets * * If the server certificate is invalid or <tt>context.ca_file</tt> is not set * when verifying peers an OpenSSL::SSL::SSLError will be raised. * */ void Init_openssl() { /* * Init timezone info */ #if 0 tzset(); #endif /* * Init all digests, ciphers */ /* CRYPTO_malloc_init(); */ /* ENGINE_load_builtin_engines(); */ OpenSSL_add_ssl_algorithms(); OpenSSL_add_all_algorithms(); ERR_load_crypto_strings(); SSL_load_error_strings(); /* * FIXME: * On unload do: */ #if 0 CONF_modules_unload(1); destroy_ui_method(); EVP_cleanup(); ENGINE_cleanup(); CRYPTO_cleanup_all_ex_data(); ERR_remove_state(0); ERR_free_strings(); #endif /* * Init main module */ mOSSL = rb_define_module("OpenSSL"); /* * OpenSSL ruby extension version */ rb_define_const(mOSSL, "VERSION", rb_str_new2(OSSL_VERSION)); /* * Version of OpenSSL the ruby OpenSSL extension was built with */ rb_define_const(mOSSL, "OPENSSL_VERSION", rb_str_new2(OPENSSL_VERSION_TEXT)); /* * Version of OpenSSL the ruby OpenSSL extension is running with */ rb_define_const(mOSSL, "OPENSSL_LIBRARY_VERSION", rb_str_new2(SSLeay_version(SSLEAY_VERSION))); /* * Version number of OpenSSL the ruby OpenSSL extension was built with * (base 16) */ rb_define_const(mOSSL, "OPENSSL_VERSION_NUMBER", INT2NUM(OPENSSL_VERSION_NUMBER)); /* * Boolean indicating whether OpenSSL is FIPS-enabled or not */ #ifdef HAVE_OPENSSL_FIPS rb_define_const(mOSSL, "OPENSSL_FIPS", Qtrue); #else rb_define_const(mOSSL, "OPENSSL_FIPS", Qfalse); #endif rb_define_module_function(mOSSL, "fips_mode=", ossl_fips_mode_set, 1); /* * Generic error, * common for all classes under OpenSSL module */ eOSSLError = rb_define_class_under(mOSSL,"OpenSSLError",rb_eStandardError); /* * Verify callback Proc index for ext-data */ if ((ossl_verify_cb_idx = X509_STORE_CTX_get_ex_new_index(0, (void *)"ossl_verify_cb_idx", 0, 0, 0)) < 0) ossl_raise(eOSSLError, "X509_STORE_CTX_get_ex_new_index"); /* * Init debug core */ dOSSL = Qfalse; rb_define_module_function(mOSSL, "debug", ossl_debug_get, 0); rb_define_module_function(mOSSL, "debug=", ossl_debug_set, 1); rb_define_module_function(mOSSL, "errors", ossl_get_errors, 0); /* * Get ID of to_der */ ossl_s_to_der = rb_intern("to_der"); /* * Init components */ Init_ossl_bn(); Init_ossl_cipher(); Init_ossl_config(); Init_ossl_digest(); Init_ossl_hmac(); Init_ossl_ns_spki(); Init_ossl_pkcs12(); Init_ossl_pkcs7(); Init_ossl_pkcs5(); Init_ossl_pkey(); Init_ossl_rand(); Init_ossl_ssl(); Init_ossl_x509(); Init_ossl_ocsp(); Init_ossl_engine(); Init_ossl_asn1(); } #if defined(OSSL_DEBUG) /* * Check if all symbols are OK with 'make LDSHARED=gcc all' */ int main(int argc, char *argv[]) { return 0; } #endif /* OSSL_DEBUG */