summaryrefslogtreecommitdiff
path: root/ruby_2_2/ext/openssl/ossl_pkey_dsa.c
diff options
context:
space:
mode:
Diffstat (limited to 'ruby_2_2/ext/openssl/ossl_pkey_dsa.c')
-rw-r--r--ruby_2_2/ext/openssl/ossl_pkey_dsa.c624
1 files changed, 0 insertions, 624 deletions
diff --git a/ruby_2_2/ext/openssl/ossl_pkey_dsa.c b/ruby_2_2/ext/openssl/ossl_pkey_dsa.c
deleted file mode 100644
index 20be2a7290..0000000000
--- a/ruby_2_2/ext/openssl/ossl_pkey_dsa.c
+++ /dev/null
@@ -1,624 +0,0 @@
-/*
- * $Id$
- * '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'.)
- */
-#if !defined(OPENSSL_NO_DSA)
-
-#include "ossl.h"
-
-#define GetPKeyDSA(obj, pkey) do { \
- GetPKey((obj), (pkey)); \
- if (EVP_PKEY_type((pkey)->type) != EVP_PKEY_DSA) { /* PARANOIA? */ \
- ossl_raise(rb_eRuntimeError, "THIS IS NOT A DSA!"); \
- } \
-} while (0)
-
-#define DSA_HAS_PRIVATE(dsa) ((dsa)->priv_key)
-#define DSA_PRIVATE(obj,dsa) (DSA_HAS_PRIVATE(dsa)||OSSL_PKEY_IS_PRIVATE(obj))
-
-/*
- * Classes
- */
-VALUE cDSA;
-VALUE eDSAError;
-
-/*
- * Public
- */
-static VALUE
-dsa_instance(VALUE klass, DSA *dsa)
-{
- EVP_PKEY *pkey;
- VALUE obj;
-
- if (!dsa) {
- return Qfalse;
- }
- if (!(pkey = EVP_PKEY_new())) {
- return Qfalse;
- }
- if (!EVP_PKEY_assign_DSA(pkey, dsa)) {
- EVP_PKEY_free(pkey);
- return Qfalse;
- }
- WrapPKey(klass, obj, pkey);
-
- return obj;
-}
-
-VALUE
-ossl_dsa_new(EVP_PKEY *pkey)
-{
- VALUE obj;
-
- if (!pkey) {
- obj = dsa_instance(cDSA, DSA_new());
- } else {
- if (EVP_PKEY_type(pkey->type) != EVP_PKEY_DSA) {
- ossl_raise(rb_eTypeError, "Not a DSA key!");
- }
- WrapPKey(cDSA, obj, pkey);
- }
- if (obj == Qfalse) {
- ossl_raise(eDSAError, NULL);
- }
-
- return obj;
-}
-
-/*
- * Private
- */
-#if defined(HAVE_DSA_GENERATE_PARAMETERS_EX) && HAVE_BN_GENCB
-struct dsa_blocking_gen_arg {
- DSA *dsa;
- int size;
- unsigned char* seed;
- int seed_len;
- int *counter;
- unsigned long *h;
- BN_GENCB *cb;
- int result;
-};
-
-static void *
-dsa_blocking_gen(void *arg)
-{
- struct dsa_blocking_gen_arg *gen = (struct dsa_blocking_gen_arg *)arg;
- gen->result = DSA_generate_parameters_ex(gen->dsa, gen->size, gen->seed, gen->seed_len, gen->counter, gen->h, gen->cb);
- return 0;
-}
-#endif
-
-static DSA *
-dsa_generate(int size)
-{
-#if defined(HAVE_DSA_GENERATE_PARAMETERS_EX) && HAVE_BN_GENCB
- BN_GENCB cb;
- struct ossl_generate_cb_arg cb_arg;
- struct dsa_blocking_gen_arg gen_arg;
- DSA *dsa = DSA_new();
- unsigned char seed[20];
- int seed_len = 20, counter;
- unsigned long h;
-
- if (!dsa) return 0;
- if (!RAND_bytes(seed, seed_len)) {
- DSA_free(dsa);
- return 0;
- }
-
- memset(&cb_arg, 0, sizeof(struct ossl_generate_cb_arg));
- if (rb_block_given_p())
- cb_arg.yield = 1;
- BN_GENCB_set(&cb, ossl_generate_cb_2, &cb_arg);
- gen_arg.dsa = dsa;
- gen_arg.size = size;
- gen_arg.seed = seed;
- gen_arg.seed_len = seed_len;
- gen_arg.counter = &counter;
- gen_arg.h = &h;
- gen_arg.cb = &cb;
- if (cb_arg.yield == 1) {
- /* we cannot release GVL when callback proc is supplied */
- dsa_blocking_gen(&gen_arg);
- } else {
- /* there's a chance to unblock */
- rb_thread_call_without_gvl(dsa_blocking_gen, &gen_arg, ossl_generate_cb_stop, &cb_arg);
- }
- if (!gen_arg.result) {
- DSA_free(dsa);
- if (cb_arg.state) rb_jump_tag(cb_arg.state);
- return 0;
- }
-#else
- DSA *dsa;
- unsigned char seed[20];
- int seed_len = 20, counter;
- unsigned long h;
-
- if (!RAND_bytes(seed, seed_len)) {
- return 0;
- }
- dsa = DSA_generate_parameters(size, seed, seed_len, &counter, &h,
- rb_block_given_p() ? ossl_generate_cb : NULL, NULL);
- if(!dsa) return 0;
-#endif
-
- if (!DSA_generate_key(dsa)) {
- DSA_free(dsa);
- return 0;
- }
-
- return dsa;
-}
-
-/*
- * call-seq:
- * DSA.generate(size) -> dsa
- *
- * Creates a new DSA instance by generating a private/public key pair
- * from scratch.
- *
- * === Parameters
- * * +size+ is an integer representing the desired key size.
- *
- */
-static VALUE
-ossl_dsa_s_generate(VALUE klass, VALUE size)
-{
- DSA *dsa = dsa_generate(NUM2INT(size)); /* err handled by dsa_instance */
- VALUE obj = dsa_instance(klass, dsa);
-
- if (obj == Qfalse) {
- DSA_free(dsa);
- ossl_raise(eDSAError, NULL);
- }
-
- return obj;
-}
-
-/*
- * call-seq:
- * DSA.new([size | string [, pass]) -> dsa
- *
- * Creates a new DSA instance by reading an existing key from +string+.
- *
- * === Parameters
- * * +size+ is an integer representing the desired key size.
- * * +string+ contains a DER or PEM encoded key.
- * * +pass+ is a string that contains an optional password.
- *
- * === Examples
- * DSA.new -> dsa
- * DSA.new(1024) -> dsa
- * DSA.new(File.read('dsa.pem')) -> dsa
- * DSA.new(File.read('dsa.pem'), 'mypassword') -> dsa
- *
- */
-static VALUE
-ossl_dsa_initialize(int argc, VALUE *argv, VALUE self)
-{
- EVP_PKEY *pkey;
- DSA *dsa;
- BIO *in;
- char *passwd = NULL;
- VALUE arg, pass;
-
- GetPKey(self, pkey);
- if(rb_scan_args(argc, argv, "02", &arg, &pass) == 0) {
- dsa = DSA_new();
- }
- else if (FIXNUM_P(arg)) {
- if (!(dsa = dsa_generate(FIX2INT(arg)))) {
- ossl_raise(eDSAError, NULL);
- }
- }
- else {
- if (!NIL_P(pass)) passwd = StringValuePtr(pass);
- arg = ossl_to_der_if_possible(arg);
- in = ossl_obj2bio(arg);
- dsa = PEM_read_bio_DSAPrivateKey(in, NULL, ossl_pem_passwd_cb, passwd);
- if (!dsa) {
- OSSL_BIO_reset(in);
- dsa = PEM_read_bio_DSA_PUBKEY(in, NULL, NULL, NULL);
- }
- if (!dsa) {
- OSSL_BIO_reset(in);
- dsa = d2i_DSAPrivateKey_bio(in, NULL);
- }
- if (!dsa) {
- OSSL_BIO_reset(in);
- dsa = d2i_DSA_PUBKEY_bio(in, NULL);
- }
- if (!dsa) {
- OSSL_BIO_reset(in);
- dsa = PEM_read_bio_DSAPublicKey(in, NULL, NULL, NULL);
- }
- BIO_free(in);
- if (!dsa) {
- ERR_clear_error();
- ossl_raise(eDSAError, "Neither PUB key nor PRIV key");
- }
- }
- if (!EVP_PKEY_assign_DSA(pkey, dsa)) {
- DSA_free(dsa);
- ossl_raise(eDSAError, NULL);
- }
-
- return self;
-}
-
-/*
- * call-seq:
- * dsa.public? -> true | false
- *
- * Indicates whether this DSA instance has a public key associated with it or
- * not. The public key may be retrieved with DSA#public_key.
- */
-static VALUE
-ossl_dsa_is_public(VALUE self)
-{
- EVP_PKEY *pkey;
-
- GetPKeyDSA(self, pkey);
-
- return (pkey->pkey.dsa->pub_key) ? Qtrue : Qfalse;
-}
-
-/*
- * call-seq:
- * dsa.private? -> true | false
- *
- * Indicates whether this DSA instance has a private key associated with it or
- * not. The private key may be retrieved with DSA#private_key.
- */
-static VALUE
-ossl_dsa_is_private(VALUE self)
-{
- EVP_PKEY *pkey;
-
- GetPKeyDSA(self, pkey);
-
- return (DSA_PRIVATE(self, pkey->pkey.dsa)) ? Qtrue : Qfalse;
-}
-
-/*
- * call-seq:
- * dsa.export([cipher, password]) -> aString
- * dsa.to_pem([cipher, password]) -> aString
- * dsa.to_s([cipher, password]) -> aString
- *
- * Encodes this DSA to its PEM encoding.
- *
- * === Parameters
- * * +cipher+ is an OpenSSL::Cipher.
- * * +password+ is a string containing your password.
- *
- * === Examples
- * DSA.to_pem -> aString
- * DSA.to_pem(cipher, 'mypassword') -> aString
- *
- */
-static VALUE
-ossl_dsa_export(int argc, VALUE *argv, VALUE self)
-{
- EVP_PKEY *pkey;
- BIO *out;
- const EVP_CIPHER *ciph = NULL;
- char *passwd = NULL;
- VALUE cipher, pass, str;
-
- GetPKeyDSA(self, pkey);
- rb_scan_args(argc, argv, "02", &cipher, &pass);
- if (!NIL_P(cipher)) {
- ciph = GetCipherPtr(cipher);
- if (!NIL_P(pass)) {
- StringValue(pass);
- if (RSTRING_LENINT(pass) < OSSL_MIN_PWD_LEN)
- ossl_raise(eOSSLError, "OpenSSL requires passwords to be at least four characters long");
- passwd = RSTRING_PTR(pass);
- }
- }
- if (!(out = BIO_new(BIO_s_mem()))) {
- ossl_raise(eDSAError, NULL);
- }
- if (DSA_HAS_PRIVATE(pkey->pkey.dsa)) {
- if (!PEM_write_bio_DSAPrivateKey(out, pkey->pkey.dsa, ciph,
- NULL, 0, ossl_pem_passwd_cb, passwd)){
- BIO_free(out);
- ossl_raise(eDSAError, NULL);
- }
- } else {
- if (!PEM_write_bio_DSA_PUBKEY(out, pkey->pkey.dsa)) {
- BIO_free(out);
- ossl_raise(eDSAError, NULL);
- }
- }
- str = ossl_membio2str(out);
-
- return str;
-}
-
-/*
- * call-seq:
- * dsa.to_der -> aString
- *
- * Encodes this DSA to its DER encoding.
- *
- */
-static VALUE
-ossl_dsa_to_der(VALUE self)
-{
- EVP_PKEY *pkey;
- int (*i2d_func)_((DSA*, unsigned char**));
- unsigned char *p;
- long len;
- VALUE str;
-
- GetPKeyDSA(self, pkey);
- if(DSA_HAS_PRIVATE(pkey->pkey.dsa))
- i2d_func = (int(*)_((DSA*,unsigned char**)))i2d_DSAPrivateKey;
- else
- i2d_func = i2d_DSA_PUBKEY;
- if((len = i2d_func(pkey->pkey.dsa, NULL)) <= 0)
- ossl_raise(eDSAError, NULL);
- str = rb_str_new(0, len);
- p = (unsigned char *)RSTRING_PTR(str);
- if(i2d_func(pkey->pkey.dsa, &p) < 0)
- ossl_raise(eDSAError, NULL);
- ossl_str_adjust(str, p);
-
- return str;
-}
-
-/*
- * call-seq:
- * dsa.params -> hash
- *
- * Stores all parameters of key to the hash
- * INSECURE: PRIVATE INFORMATIONS CAN LEAK OUT!!!
- * Don't use :-)) (I's up to you)
- */
-static VALUE
-ossl_dsa_get_params(VALUE self)
-{
- EVP_PKEY *pkey;
- VALUE hash;
-
- GetPKeyDSA(self, pkey);
-
- hash = rb_hash_new();
-
- rb_hash_aset(hash, rb_str_new2("p"), ossl_bn_new(pkey->pkey.dsa->p));
- rb_hash_aset(hash, rb_str_new2("q"), ossl_bn_new(pkey->pkey.dsa->q));
- rb_hash_aset(hash, rb_str_new2("g"), ossl_bn_new(pkey->pkey.dsa->g));
- rb_hash_aset(hash, rb_str_new2("pub_key"), ossl_bn_new(pkey->pkey.dsa->pub_key));
- rb_hash_aset(hash, rb_str_new2("priv_key"), ossl_bn_new(pkey->pkey.dsa->priv_key));
-
- return hash;
-}
-
-/*
- * call-seq:
- * dsa.to_text -> aString
- *
- * Prints all parameters of key to buffer
- * INSECURE: PRIVATE INFORMATIONS CAN LEAK OUT!!!
- * Don't use :-)) (I's up to you)
- */
-static VALUE
-ossl_dsa_to_text(VALUE self)
-{
- EVP_PKEY *pkey;
- BIO *out;
- VALUE str;
-
- GetPKeyDSA(self, pkey);
- if (!(out = BIO_new(BIO_s_mem()))) {
- ossl_raise(eDSAError, NULL);
- }
- if (!DSA_print(out, pkey->pkey.dsa, 0)) { /* offset = 0 */
- BIO_free(out);
- ossl_raise(eDSAError, NULL);
- }
- str = ossl_membio2str(out);
-
- return str;
-}
-
-/*
- * call-seq:
- * dsa.public_key -> aDSA
- *
- * Returns a new DSA instance that carries just the public key information.
- * If the current instance has also private key information, this will no
- * longer be present in the new instance. This feature is helpful for
- * publishing the public key information without leaking any of the private
- * information.
- *
- * === Example
- * dsa = OpenSSL::PKey::DSA.new(2048) # has public and private information
- * pub_key = dsa.public_key # has only the public part available
- * pub_key_der = pub_key.to_der # it's safe to publish this
- *
- *
- */
-static VALUE
-ossl_dsa_to_public_key(VALUE self)
-{
- EVP_PKEY *pkey;
- DSA *dsa;
- VALUE obj;
-
- GetPKeyDSA(self, pkey);
- /* err check performed by dsa_instance */
- dsa = DSAPublicKey_dup(pkey->pkey.dsa);
- obj = dsa_instance(CLASS_OF(self), dsa);
- if (obj == Qfalse) {
- DSA_free(dsa);
- ossl_raise(eDSAError, NULL);
- }
- return obj;
-}
-
-#define ossl_dsa_buf_size(pkey) (DSA_size((pkey)->pkey.dsa)+16)
-
-/*
- * call-seq:
- * dsa.syssign(string) -> aString
- *
- * Computes and returns the DSA signature of +string+, where +string+ is
- * expected to be an already-computed message digest of the original input
- * data. The signature is issued using the private key of this DSA instance.
- *
- * === Parameters
- * * +string+ is a message digest of the original input data to be signed
- *
- * === Example
- * dsa = OpenSSL::PKey::DSA.new(2048)
- * doc = "Sign me"
- * digest = OpenSSL::Digest::SHA1.digest(doc)
- * sig = dsa.syssign(digest)
- *
- *
- */
-static VALUE
-ossl_dsa_sign(VALUE self, VALUE data)
-{
- EVP_PKEY *pkey;
- unsigned int buf_len;
- VALUE str;
-
- GetPKeyDSA(self, pkey);
- if (!pkey->pkey.dsa->q)
- ossl_raise(eDSAError, "incomplete DSA");
- if (!DSA_PRIVATE(self, pkey->pkey.dsa))
- ossl_raise(eDSAError, "Private DSA key needed!");
- StringValue(data);
- str = rb_str_new(0, ossl_dsa_buf_size(pkey));
- if (!DSA_sign(0, (unsigned char *)RSTRING_PTR(data), RSTRING_LENINT(data),
- (unsigned char *)RSTRING_PTR(str),
- &buf_len, pkey->pkey.dsa)) { /* type is ignored (0) */
- ossl_raise(eDSAError, NULL);
- }
- rb_str_set_len(str, buf_len);
-
- return str;
-}
-
-/*
- * call-seq:
- * dsa.sysverify(digest, sig) -> true | false
- *
- * Verifies whether the signature is valid given the message digest input. It
- * does so by validating +sig+ using the public key of this DSA instance.
- *
- * === Parameters
- * * +digest+ is a message digest of the original input data to be signed
- * * +sig+ is a DSA signature value
- *
- * === Example
- * dsa = OpenSSL::PKey::DSA.new(2048)
- * doc = "Sign me"
- * digest = OpenSSL::Digest::SHA1.digest(doc)
- * sig = dsa.syssign(digest)
- * puts dsa.sysverify(digest, sig) # => true
- *
- */
-static VALUE
-ossl_dsa_verify(VALUE self, VALUE digest, VALUE sig)
-{
- EVP_PKEY *pkey;
- int ret;
-
- GetPKeyDSA(self, pkey);
- StringValue(digest);
- StringValue(sig);
- /* type is ignored (0) */
- ret = DSA_verify(0, (unsigned char *)RSTRING_PTR(digest), RSTRING_LENINT(digest),
- (unsigned char *)RSTRING_PTR(sig), RSTRING_LENINT(sig), pkey->pkey.dsa);
- if (ret < 0) {
- ossl_raise(eDSAError, NULL);
- }
- else if (ret == 1) {
- return Qtrue;
- }
-
- return Qfalse;
-}
-
-OSSL_PKEY_BN(dsa, p)
-OSSL_PKEY_BN(dsa, q)
-OSSL_PKEY_BN(dsa, g)
-OSSL_PKEY_BN(dsa, pub_key)
-OSSL_PKEY_BN(dsa, priv_key)
-
-/*
- * INIT
- */
-void
-Init_ossl_dsa(void)
-{
-#if 0
- mOSSL = rb_define_module("OpenSSL"); /* let rdoc know about mOSSL and mPKey */
- mPKey = rb_define_module_under(mOSSL, "PKey");
-#endif
-
- /* Document-class: OpenSSL::PKey::DSAError
- *
- * Generic exception that is raised if an operation on a DSA PKey
- * fails unexpectedly or in case an instantiation of an instance of DSA
- * fails due to non-conformant input data.
- */
- eDSAError = rb_define_class_under(mPKey, "DSAError", ePKeyError);
-
- /* Document-class: OpenSSL::PKey::DSA
- *
- * DSA, the Digital Signature Algorithm, is specified in NIST's
- * FIPS 186-3. It is an asymmetric public key algorithm that may be used
- * similar to e.g. RSA.
- * Please note that for OpenSSL versions prior to 1.0.0 the digest
- * algorithms OpenSSL::Digest::DSS (equivalent to SHA) or
- * OpenSSL::Digest::DSS1 (equivalent to SHA-1) must be used for issuing
- * signatures with a DSA key using OpenSSL::PKey#sign.
- * Starting with OpenSSL 1.0.0, digest algorithms are no longer restricted,
- * any Digest may be used for signing.
- */
- cDSA = rb_define_class_under(mPKey, "DSA", cPKey);
-
- rb_define_singleton_method(cDSA, "generate", ossl_dsa_s_generate, 1);
- rb_define_method(cDSA, "initialize", ossl_dsa_initialize, -1);
-
- rb_define_method(cDSA, "public?", ossl_dsa_is_public, 0);
- rb_define_method(cDSA, "private?", ossl_dsa_is_private, 0);
- rb_define_method(cDSA, "to_text", ossl_dsa_to_text, 0);
- rb_define_method(cDSA, "export", ossl_dsa_export, -1);
- rb_define_alias(cDSA, "to_pem", "export");
- rb_define_alias(cDSA, "to_s", "export");
- rb_define_method(cDSA, "to_der", ossl_dsa_to_der, 0);
- rb_define_method(cDSA, "public_key", ossl_dsa_to_public_key, 0);
- rb_define_method(cDSA, "syssign", ossl_dsa_sign, 1);
- rb_define_method(cDSA, "sysverify", ossl_dsa_verify, 2);
-
- DEF_OSSL_PKEY_BN(cDSA, dsa, p);
- DEF_OSSL_PKEY_BN(cDSA, dsa, q);
- DEF_OSSL_PKEY_BN(cDSA, dsa, g);
- DEF_OSSL_PKEY_BN(cDSA, dsa, pub_key);
- DEF_OSSL_PKEY_BN(cDSA, dsa, priv_key);
-
- rb_define_method(cDSA, "params", ossl_dsa_get_params, 0);
-}
-
-#else /* defined NO_DSA */
-void
-Init_ossl_dsa(void)
-{
-}
-#endif /* NO_DSA */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 14:22:21 +0000