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161b45f59c
* ext/openssl/ossl_asn1.c: Simplify code. * ext/openssl/ossl_ssl_session.c Fix compiler warnings. Undefine #id if SSL_SESSION_get_id is not supported. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15610 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
593 lines
14 KiB
C
593 lines
14 KiB
C
/*
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* $Id$
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* 'OpenSSL for Ruby' project
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* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
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* All rights reserved.
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*/
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/*
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* This program is licenced under the same licence as Ruby.
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* (See the file 'LICENCE'.)
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*/
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#if !defined(OPENSSL_NO_RSA)
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#include "ossl.h"
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#define GetPKeyRSA(obj, pkey) do { \
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GetPKey(obj, pkey); \
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if (EVP_PKEY_type(pkey->type) != EVP_PKEY_RSA) { /* PARANOIA? */ \
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ossl_raise(rb_eRuntimeError, "THIS IS NOT A RSA!") ; \
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} \
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} while (0)
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#define RSA_HAS_PRIVATE(rsa) ((rsa)->p && (rsa)->q)
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#define RSA_PRIVATE(obj,rsa) (RSA_HAS_PRIVATE(rsa)||OSSL_PKEY_IS_PRIVATE(obj))
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/*
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* Classes
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*/
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VALUE cRSA;
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VALUE eRSAError;
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/*
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* Public
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*/
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static VALUE
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rsa_instance(VALUE klass, RSA *rsa)
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{
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EVP_PKEY *pkey;
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VALUE obj;
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if (!rsa) {
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return Qfalse;
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}
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if (!(pkey = EVP_PKEY_new())) {
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return Qfalse;
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}
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if (!EVP_PKEY_assign_RSA(pkey, rsa)) {
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EVP_PKEY_free(pkey);
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return Qfalse;
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}
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WrapPKey(klass, obj, pkey);
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return obj;
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}
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VALUE
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ossl_rsa_new(EVP_PKEY *pkey)
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{
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VALUE obj;
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if (!pkey) {
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obj = rsa_instance(cRSA, RSA_new());
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}
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else {
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if (EVP_PKEY_type(pkey->type) != EVP_PKEY_RSA) {
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ossl_raise(rb_eTypeError, "Not a RSA key!");
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}
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WrapPKey(cRSA, obj, pkey);
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}
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if (obj == Qfalse) {
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ossl_raise(eRSAError, NULL);
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}
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return obj;
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}
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/*
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* Private
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*/
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static RSA *
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rsa_generate(int size, int exp)
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{
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return RSA_generate_key(size, exp,
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rb_block_given_p() ? ossl_generate_cb : NULL,
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NULL);
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}
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/*
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* call-seq:
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* RSA.generate(size [, exponent]) -> rsa
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*
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* === Parameters
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* * +size+ is an integer representing the desired key size. Keys smaller than 1024 should be considered insecure.
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* * +exponent+ is an odd number normally 3, 17, or 65537.
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*
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*/
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static VALUE
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ossl_rsa_s_generate(int argc, VALUE *argv, VALUE klass)
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{
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/* why does this method exist? why can't initialize take an optional exponent? */
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RSA *rsa;
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VALUE size, exp;
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VALUE obj;
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rb_scan_args(argc, argv, "11", &size, &exp);
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rsa = rsa_generate(NUM2INT(size), NIL_P(exp) ? RSA_F4 : NUM2INT(exp)); /* err handled by rsa_instance */
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obj = rsa_instance(klass, rsa);
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if (obj == Qfalse) {
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RSA_free(rsa);
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ossl_raise(eRSAError, NULL);
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}
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return obj;
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}
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/*
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* call-seq:
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* RSA.new([size | encoded_key] [, pass]) -> rsa
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*
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* === Parameters
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* * +size+ is an integer representing the desired key size.
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* * +encoded_key+ is a string containing PEM or DER encoded key.
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* * +pass+ is an optional string with the password to decrypt the encoded key.
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*
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* === Examples
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* * RSA.new(2048) -> rsa
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* * RSA.new(File.read("rsa.pem")) -> rsa
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* * RSA.new(File.read("rsa.pem"), "mypassword") -> rsa
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*/
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static VALUE
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ossl_rsa_initialize(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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RSA *rsa;
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BIO *in;
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char *passwd = NULL;
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VALUE arg, pass;
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GetPKey(self, pkey);
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if(rb_scan_args(argc, argv, "02", &arg, &pass) == 0) {
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rsa = RSA_new();
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}
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else if (FIXNUM_P(arg)) {
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rsa = rsa_generate(FIX2INT(arg), NIL_P(pass) ? RSA_F4 : NUM2INT(pass));
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if (!rsa) ossl_raise(eRSAError, NULL);
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}
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else {
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if (!NIL_P(pass)) passwd = StringValuePtr(pass);
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arg = ossl_to_der_if_possible(arg);
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in = ossl_obj2bio(arg);
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rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ossl_pem_passwd_cb, passwd);
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if (!rsa) {
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BIO_reset(in);
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rsa = PEM_read_bio_RSAPublicKey(in, NULL, NULL, NULL);
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}
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if (!rsa) {
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BIO_reset(in);
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rsa = PEM_read_bio_RSA_PUBKEY(in, NULL, NULL, NULL);
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}
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if (!rsa) {
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BIO_reset(in);
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rsa = d2i_RSAPrivateKey_bio(in, NULL);
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}
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if (!rsa) {
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BIO_reset(in);
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rsa = d2i_RSAPublicKey_bio(in, NULL);
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}
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if (!rsa) {
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BIO_reset(in);
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rsa = d2i_RSA_PUBKEY_bio(in, NULL);
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}
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BIO_free(in);
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if (!rsa) ossl_raise(eRSAError, "Neither PUB key nor PRIV key:");
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}
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if (!EVP_PKEY_assign_RSA(pkey, rsa)) {
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RSA_free(rsa);
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ossl_raise(eRSAError, NULL);
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}
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return self;
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}
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/*
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* call-seq:
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* rsa.public? -> true
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*
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* The return value is always true since every private key is also a public key.
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*
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*/
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static VALUE
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ossl_rsa_is_public(VALUE self)
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{
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EVP_PKEY *pkey;
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GetPKeyRSA(self, pkey);
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/*
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* This method should check for n and e. BUG.
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*/
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return Qtrue;
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}
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/*
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* call-seq:
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* rsa.private? -> true | false
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*
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*/
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static VALUE
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ossl_rsa_is_private(VALUE self)
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{
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EVP_PKEY *pkey;
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GetPKeyRSA(self, pkey);
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return (RSA_PRIVATE(self, pkey->pkey.rsa)) ? Qtrue : Qfalse;
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}
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/*
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* call-seq:
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* rsa.to_pem([cipher, pass]) -> aString
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*
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* === Parameters
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* * +cipher+ is a Cipher object.
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* * +pass+ is a string.
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*
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* === Examples
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* * rsa.to_pem -> aString
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* * rsa.to_pem(cipher, pass) -> aString
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*/
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static VALUE
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ossl_rsa_export(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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BIO *out;
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const EVP_CIPHER *ciph = NULL;
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char *passwd = NULL;
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VALUE cipher, pass, str;
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GetPKeyRSA(self, pkey);
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rb_scan_args(argc, argv, "02", &cipher, &pass);
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if (!NIL_P(cipher)) {
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ciph = GetCipherPtr(cipher);
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if (!NIL_P(pass)) {
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passwd = StringValuePtr(pass);
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}
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}
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if (!(out = BIO_new(BIO_s_mem()))) {
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ossl_raise(eRSAError, NULL);
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}
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if (RSA_HAS_PRIVATE(pkey->pkey.rsa)) {
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if (!PEM_write_bio_RSAPrivateKey(out, pkey->pkey.rsa, ciph,
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NULL, 0, ossl_pem_passwd_cb, passwd)) {
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BIO_free(out);
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ossl_raise(eRSAError, NULL);
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}
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} else {
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if (!PEM_write_bio_RSAPublicKey(out, pkey->pkey.rsa)) {
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BIO_free(out);
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ossl_raise(eRSAError, NULL);
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}
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}
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str = ossl_membio2str(out);
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return str;
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}
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/*
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* call-seq:
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* rsa.to_der -> aString
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*
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*/
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static VALUE
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ossl_rsa_to_der(VALUE self)
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{
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EVP_PKEY *pkey;
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int (*i2d_func)_((const RSA*, unsigned char**));
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unsigned char *p;
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long len;
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VALUE str;
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GetPKeyRSA(self, pkey);
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if(RSA_HAS_PRIVATE(pkey->pkey.rsa))
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i2d_func = i2d_RSAPrivateKey;
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else
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i2d_func = i2d_RSAPublicKey;
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if((len = i2d_func(pkey->pkey.rsa, NULL)) <= 0)
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ossl_raise(eRSAError, NULL);
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str = rb_str_new(0, len);
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p = RSTRING_PTR(str);
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if(i2d_func(pkey->pkey.rsa, &p) < 0)
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ossl_raise(eRSAError, NULL);
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ossl_str_adjust(str, p);
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return str;
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}
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#define ossl_rsa_buf_size(pkey) (RSA_size((pkey)->pkey.rsa)+16)
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/*
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* call-seq:
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* rsa.public_encrypt(string [, padding]) -> aString
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*
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*/
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static VALUE
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ossl_rsa_public_encrypt(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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int buf_len, pad;
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VALUE str, buffer, padding;
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GetPKeyRSA(self, pkey);
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rb_scan_args(argc, argv, "11", &buffer, &padding);
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pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
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StringValue(buffer);
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str = rb_str_new(0, ossl_rsa_buf_size(pkey));
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buf_len = RSA_public_encrypt(RSTRING_LEN(buffer), RSTRING_PTR(buffer),
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RSTRING_PTR(str), pkey->pkey.rsa,
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pad);
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if (buf_len < 0) ossl_raise(eRSAError, NULL);
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rb_str_set_len(str, buf_len);
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return str;
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}
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/*
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* call-seq:
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* rsa.public_decrypt(string [, padding]) -> aString
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*
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*/
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static VALUE
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ossl_rsa_public_decrypt(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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int buf_len, pad;
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VALUE str, buffer, padding;
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GetPKeyRSA(self, pkey);
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rb_scan_args(argc, argv, "11", &buffer, &padding);
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pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
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StringValue(buffer);
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str = rb_str_new(0, ossl_rsa_buf_size(pkey));
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buf_len = RSA_public_decrypt(RSTRING_LEN(buffer), RSTRING_PTR(buffer),
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RSTRING_PTR(str), pkey->pkey.rsa,
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pad);
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if (buf_len < 0) ossl_raise(eRSAError, NULL);
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rb_str_set_len(str, buf_len);
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return str;
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}
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/*
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* call-seq:
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* rsa.private_encrypt(string [, padding]) -> aString
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*
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*/
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static VALUE
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ossl_rsa_private_encrypt(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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int buf_len, pad;
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VALUE str, buffer, padding;
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GetPKeyRSA(self, pkey);
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if (!RSA_PRIVATE(self, pkey->pkey.rsa)) {
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ossl_raise(eRSAError, "private key needed.");
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}
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rb_scan_args(argc, argv, "11", &buffer, &padding);
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pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
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StringValue(buffer);
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str = rb_str_new(0, ossl_rsa_buf_size(pkey));
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buf_len = RSA_private_encrypt(RSTRING_LEN(buffer), RSTRING_PTR(buffer),
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RSTRING_PTR(str), pkey->pkey.rsa,
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pad);
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if (buf_len < 0) ossl_raise(eRSAError, NULL);
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rb_str_set_len(str, buf_len);
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return str;
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}
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/*
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* call-seq:
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* rsa.private_decrypt(string [, padding]) -> aString
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*
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*/
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static VALUE
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ossl_rsa_private_decrypt(int argc, VALUE *argv, VALUE self)
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{
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EVP_PKEY *pkey;
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int buf_len, pad;
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VALUE str, buffer, padding;
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GetPKeyRSA(self, pkey);
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if (!RSA_PRIVATE(self, pkey->pkey.rsa)) {
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ossl_raise(eRSAError, "private key needed.");
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}
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rb_scan_args(argc, argv, "11", &buffer, &padding);
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pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
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StringValue(buffer);
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str = rb_str_new(0, ossl_rsa_buf_size(pkey));
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buf_len = RSA_private_decrypt(RSTRING_LEN(buffer), RSTRING_PTR(buffer),
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RSTRING_PTR(str), pkey->pkey.rsa,
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pad);
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if (buf_len < 0) ossl_raise(eRSAError, NULL);
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rb_str_set_len(str, buf_len);
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return str;
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}
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/*
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* call-seq:
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* rsa.params -> hash
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*
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* Stores all parameters of key to the hash
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* INSECURE: PRIVATE INFORMATIONS CAN LEAK OUT!!!
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* Don't use :-)) (I's up to you)
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*/
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static VALUE
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ossl_rsa_get_params(VALUE self)
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{
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EVP_PKEY *pkey;
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VALUE hash;
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GetPKeyRSA(self, pkey);
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hash = rb_hash_new();
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rb_hash_aset(hash, rb_str_new2("n"), ossl_bn_new(pkey->pkey.rsa->n));
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rb_hash_aset(hash, rb_str_new2("e"), ossl_bn_new(pkey->pkey.rsa->e));
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rb_hash_aset(hash, rb_str_new2("d"), ossl_bn_new(pkey->pkey.rsa->d));
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rb_hash_aset(hash, rb_str_new2("p"), ossl_bn_new(pkey->pkey.rsa->p));
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rb_hash_aset(hash, rb_str_new2("q"), ossl_bn_new(pkey->pkey.rsa->q));
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rb_hash_aset(hash, rb_str_new2("dmp1"), ossl_bn_new(pkey->pkey.rsa->dmp1));
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rb_hash_aset(hash, rb_str_new2("dmq1"), ossl_bn_new(pkey->pkey.rsa->dmq1));
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rb_hash_aset(hash, rb_str_new2("iqmp"), ossl_bn_new(pkey->pkey.rsa->iqmp));
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return hash;
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}
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/*
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* call-seq:
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* rsa.to_text -> aString
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*
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* Prints all parameters of key to buffer
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* INSECURE: PRIVATE INFORMATIONS CAN LEAK OUT!!!
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* Don't use :-)) (It's up to you)
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*/
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static VALUE
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ossl_rsa_to_text(VALUE self)
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{
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EVP_PKEY *pkey;
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BIO *out;
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VALUE str;
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GetPKeyRSA(self, pkey);
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if (!(out = BIO_new(BIO_s_mem()))) {
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ossl_raise(eRSAError, NULL);
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}
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if (!RSA_print(out, pkey->pkey.rsa, 0)) { /* offset = 0 */
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BIO_free(out);
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ossl_raise(eRSAError, NULL);
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}
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str = ossl_membio2str(out);
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return str;
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}
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/*
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* call-seq:
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* rsa.public_key -> aRSA
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*
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* Makes new instance RSA PUBLIC_KEY from PRIVATE_KEY
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*/
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static VALUE
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ossl_rsa_to_public_key(VALUE self)
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{
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EVP_PKEY *pkey;
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RSA *rsa;
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VALUE obj;
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GetPKeyRSA(self, pkey);
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/* err check performed by rsa_instance */
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rsa = RSAPublicKey_dup(pkey->pkey.rsa);
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obj = rsa_instance(CLASS_OF(self), rsa);
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if (obj == Qfalse) {
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RSA_free(rsa);
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ossl_raise(eRSAError, NULL);
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}
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return obj;
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}
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/*
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* TODO: Test me
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static VALUE
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ossl_rsa_blinding_on(VALUE self)
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{
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EVP_PKEY *pkey;
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GetPKeyRSA(self, pkey);
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if (RSA_blinding_on(pkey->pkey.rsa, ossl_bn_ctx) != 1) {
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ossl_raise(eRSAError, NULL);
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}
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return self;
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}
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static VALUE
|
|
ossl_rsa_blinding_off(VALUE self)
|
|
{
|
|
EVP_PKEY *pkey;
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|
|
|
GetPKeyRSA(self, pkey);
|
|
RSA_blinding_off(pkey->pkey.rsa);
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|
|
|
return self;
|
|
}
|
|
*/
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|
|
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OSSL_PKEY_BN(rsa, n);
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OSSL_PKEY_BN(rsa, e);
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OSSL_PKEY_BN(rsa, d);
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OSSL_PKEY_BN(rsa, p);
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|
OSSL_PKEY_BN(rsa, q);
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|
OSSL_PKEY_BN(rsa, dmp1);
|
|
OSSL_PKEY_BN(rsa, dmq1);
|
|
OSSL_PKEY_BN(rsa, iqmp);
|
|
|
|
/*
|
|
* INIT
|
|
*/
|
|
#define DefRSAConst(x) rb_define_const(cRSA, #x,INT2FIX(RSA_##x))
|
|
|
|
void
|
|
Init_ossl_rsa()
|
|
{
|
|
#if 0 /* let rdoc know about mOSSL and mPKey */
|
|
mOSSL = rb_define_module("OpenSSL");
|
|
mPKey = rb_define_module_under(mOSSL, "PKey");
|
|
#endif
|
|
|
|
eRSAError = rb_define_class_under(mPKey, "RSAError", ePKeyError);
|
|
|
|
cRSA = rb_define_class_under(mPKey, "RSA", cPKey);
|
|
|
|
rb_define_singleton_method(cRSA, "generate", ossl_rsa_s_generate, -1);
|
|
rb_define_method(cRSA, "initialize", ossl_rsa_initialize, -1);
|
|
|
|
rb_define_method(cRSA, "public?", ossl_rsa_is_public, 0);
|
|
rb_define_method(cRSA, "private?", ossl_rsa_is_private, 0);
|
|
rb_define_method(cRSA, "to_text", ossl_rsa_to_text, 0);
|
|
rb_define_method(cRSA, "export", ossl_rsa_export, -1);
|
|
rb_define_alias(cRSA, "to_pem", "export");
|
|
rb_define_alias(cRSA, "to_s", "export");
|
|
rb_define_method(cRSA, "to_der", ossl_rsa_to_der, 0);
|
|
rb_define_method(cRSA, "public_key", ossl_rsa_to_public_key, 0);
|
|
rb_define_method(cRSA, "public_encrypt", ossl_rsa_public_encrypt, -1);
|
|
rb_define_method(cRSA, "public_decrypt", ossl_rsa_public_decrypt, -1);
|
|
rb_define_method(cRSA, "private_encrypt", ossl_rsa_private_encrypt, -1);
|
|
rb_define_method(cRSA, "private_decrypt", ossl_rsa_private_decrypt, -1);
|
|
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, n);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, e);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, d);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, p);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, q);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, dmp1);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, dmq1);
|
|
DEF_OSSL_PKEY_BN(cRSA, rsa, iqmp);
|
|
|
|
rb_define_method(cRSA, "params", ossl_rsa_get_params, 0);
|
|
|
|
DefRSAConst(PKCS1_PADDING);
|
|
DefRSAConst(SSLV23_PADDING);
|
|
DefRSAConst(NO_PADDING);
|
|
DefRSAConst(PKCS1_OAEP_PADDING);
|
|
|
|
/*
|
|
* TODO: Test it
|
|
rb_define_method(cRSA, "blinding_on!", ossl_rsa_blinding_on, 0);
|
|
rb_define_method(cRSA, "blinding_off!", ossl_rsa_blinding_off, 0);
|
|
*/
|
|
}
|
|
|
|
#else /* defined NO_RSA */
|
|
void
|
|
Init_ossl_rsa()
|
|
{
|
|
}
|
|
#endif /* NO_RSA */
|
|
|