diff options
Diffstat (limited to 'ruby_1_8_6/ext/openssl/ossl_pkey_dh.c')
| -rw-r--r-- | ruby_1_8_6/ext/openssl/ossl_pkey_dh.c | 463 |
1 files changed, 463 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/openssl/ossl_pkey_dh.c b/ruby_1_8_6/ext/openssl/ossl_pkey_dh.c new file mode 100644 index 0000000000..e16ede8bba --- /dev/null +++ b/ruby_1_8_6/ext/openssl/ossl_pkey_dh.c @@ -0,0 +1,463 @@ +/* + * $Id$ + * '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_DH) + +#include "ossl.h" + +#define GetPKeyDH(obj, pkey) do { \ + GetPKey(obj, pkey); \ + if (EVP_PKEY_type(pkey->type) != EVP_PKEY_DH) { /* PARANOIA? */ \ + ossl_raise(rb_eRuntimeError, "THIS IS NOT A DH!") ; \ + } \ +} while (0) + +#define DH_HAS_PRIVATE(dh) ((dh)->priv_key) + +#ifdef OSSL_ENGINE_ENABLED +# define DH_PRIVATE(dh) (DH_HAS_PRIVATE(dh) || (dh)->engine) +#else +# define DH_PRIVATE(dh) DH_HAS_PRIVATE(dh) +#endif + + +/* + * Classes + */ +VALUE cDH; +VALUE eDHError; + +/* + * Public + */ +static VALUE +dh_instance(VALUE klass, DH *dh) +{ + EVP_PKEY *pkey; + VALUE obj; + + if (!dh) { + return Qfalse; + } + if (!(pkey = EVP_PKEY_new())) { + return Qfalse; + } + if (!EVP_PKEY_assign_DH(pkey, dh)) { + EVP_PKEY_free(pkey); + return Qfalse; + } + WrapPKey(klass, obj, pkey); + + return obj; +} + +VALUE +ossl_dh_new(EVP_PKEY *pkey) +{ + VALUE obj; + + if (!pkey) { + obj = dh_instance(cDH, DH_new()); + } else { + if (EVP_PKEY_type(pkey->type) != EVP_PKEY_DH) { + ossl_raise(rb_eTypeError, "Not a DH key!"); + } + WrapPKey(cDH, obj, pkey); + } + if (obj == Qfalse) { + ossl_raise(eDHError, NULL); + } + + return obj; +} + +/* + * Private + */ +static DH * +dh_generate(int size, int gen) +{ + DH *dh; + + dh = DH_generate_parameters(size, gen, + rb_block_given_p() ? ossl_generate_cb : NULL, + NULL); + if (!dh) return 0; + + if (!DH_generate_key(dh)) { + DH_free(dh); + return 0; + } + + return dh; +} + +static VALUE +ossl_dh_s_generate(int argc, VALUE *argv, VALUE klass) +{ + DH *dh ; + int g = 2; + VALUE size, gen, obj; + + if (rb_scan_args(argc, argv, "11", &size, &gen) == 2) { + g = FIX2INT(gen); + } + dh = dh_generate(FIX2INT(size), g); + obj = dh_instance(klass, dh); + if (obj == Qfalse) { + DH_free(dh); + ossl_raise(eDHError, NULL); + } + + return obj; +} + +static VALUE +ossl_dh_initialize(int argc, VALUE *argv, VALUE self) +{ + EVP_PKEY *pkey; + DH *dh; + int g = 2; + BIO *in; + VALUE arg, gen; + + GetPKey(self, pkey); + if(rb_scan_args(argc, argv, "02", &arg, &gen) == 0) { + dh = DH_new(); + } + else if (FIXNUM_P(arg)) { + if (!NIL_P(gen)) { + g = FIX2INT(gen); + } + if (!(dh = dh_generate(FIX2INT(arg), g))) { + ossl_raise(eDHError, NULL); + } + } + else { + arg = ossl_to_der_if_possible(arg); + in = ossl_obj2bio(arg); + dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL); + if (!dh){ + BIO_reset(in); + dh = d2i_DHparams_bio(in, NULL); + } + BIO_free(in); + if (!dh) ossl_raise(eDHError, NULL); + } + if (!EVP_PKEY_assign_DH(pkey, dh)) { + DH_free(dh); + ossl_raise(eDHError, NULL); + } + return self; +} + +static VALUE +ossl_dh_is_public(VALUE self) +{ + EVP_PKEY *pkey; + + GetPKeyDH(self, pkey); + /* + * Do we need to check dhp->dh->public_pkey? + * return Qtrue; + */ + return (pkey->pkey.dh->pub_key) ? Qtrue : Qfalse; +} + +static VALUE +ossl_dh_is_private(VALUE self) +{ + EVP_PKEY *pkey; + + GetPKeyDH(self, pkey); + + return (DH_PRIVATE(pkey->pkey.dh)) ? Qtrue : Qfalse; +} + +static VALUE +ossl_dh_export(VALUE self) +{ + EVP_PKEY *pkey; + BIO *out; + VALUE str; + + GetPKeyDH(self, pkey); + if (!(out = BIO_new(BIO_s_mem()))) { + ossl_raise(eDHError, NULL); + } + if (!PEM_write_bio_DHparams(out, pkey->pkey.dh)) { + BIO_free(out); + ossl_raise(eDHError, NULL); + } + str = ossl_membio2str(out); + + return str; +} + +static VALUE +ossl_dh_to_der(VALUE self) +{ + EVP_PKEY *pkey; + unsigned char *p; + long len; + VALUE str; + + GetPKeyDH(self, pkey); + if((len = i2d_DHparams(pkey->pkey.dh, NULL)) <= 0) + ossl_raise(eDHError, NULL); + str = rb_str_new(0, len); + p = RSTRING(str)->ptr; + if(i2d_DHparams(pkey->pkey.dh, &p) < 0) + ossl_raise(eDHError, NULL); + ossl_str_adjust(str, p); + + return str; +} + +/* + * 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_dh_get_params(VALUE self) +{ + EVP_PKEY *pkey; + VALUE hash; + + GetPKeyDH(self, pkey); + + hash = rb_hash_new(); + + rb_hash_aset(hash, rb_str_new2("p"), ossl_bn_new(pkey->pkey.dh->p)); + rb_hash_aset(hash, rb_str_new2("g"), ossl_bn_new(pkey->pkey.dh->g)); + rb_hash_aset(hash, rb_str_new2("pub_key"), ossl_bn_new(pkey->pkey.dh->pub_key)); + rb_hash_aset(hash, rb_str_new2("priv_key"), ossl_bn_new(pkey->pkey.dh->priv_key)); + + return hash; +} + +/* + * Prints all parameters of key to buffer + * INSECURE: PRIVATE INFORMATIONS CAN LEAK OUT!!! + * Don't use :-)) (I's up to you) + */ +static VALUE +ossl_dh_to_text(VALUE self) +{ + EVP_PKEY *pkey; + BIO *out; + VALUE str; + + GetPKeyDH(self, pkey); + if (!(out = BIO_new(BIO_s_mem()))) { + ossl_raise(eDHError, NULL); + } + if (!DHparams_print(out, pkey->pkey.dh)) { + BIO_free(out); + ossl_raise(eDHError, NULL); + } + str = ossl_membio2str(out); + + return str; +} + +/* + * Makes new instance DH PUBLIC_KEY from PRIVATE_KEY + */ +static VALUE +ossl_dh_to_public_key(VALUE self) +{ + EVP_PKEY *pkey; + DH *dh; + VALUE obj; + + GetPKeyDH(self, pkey); + dh = DHparams_dup(pkey->pkey.dh); /* err check perfomed by dh_instance */ + obj = dh_instance(CLASS_OF(self), dh); + if (obj == Qfalse) { + DH_free(dh); + ossl_raise(eDHError, NULL); + } + + return obj; +} + +static VALUE +ossl_dh_check_params(VALUE self) +{ + DH *dh; + EVP_PKEY *pkey; + int codes; + + GetPKeyDH(self, pkey); + dh = pkey->pkey.dh; + + if (!DH_check(dh, &codes)) { + return Qfalse; + } + + return codes == 0 ? Qtrue : Qfalse; +} + +static VALUE +ossl_dh_generate_key(VALUE self) +{ + DH *dh; + EVP_PKEY *pkey; + + GetPKeyDH(self, pkey); + dh = pkey->pkey.dh; + + if (!DH_generate_key(dh)) + ossl_raise(eDHError, "Failed to generate key"); + return self; +} + +static VALUE +ossl_dh_compute_key(VALUE self, VALUE pub) +{ + DH *dh; + EVP_PKEY *pkey; + BIGNUM *pub_key; + VALUE str; + int len; + + GetPKeyDH(self, pkey); + dh = pkey->pkey.dh; + pub_key = GetBNPtr(pub); + len = DH_size(dh); + str = rb_str_new(0, len); + if ((len = DH_compute_key(RSTRING(str)->ptr, pub_key, dh)) < 0) { + ossl_raise(eDHError, NULL); + } + RSTRING(str)->len = len; + RSTRING(str)->ptr[len] = 0; + + return str; +} + +OSSL_PKEY_BN(dh, p); +OSSL_PKEY_BN(dh, g); +OSSL_PKEY_BN(dh, pub_key); +OSSL_PKEY_BN(dh, priv_key); + +/* + * -----BEGIN DH PARAMETERS----- + * MEYCQQD0zXHljRg/mJ9PYLACLv58Cd8VxBxxY7oEuCeURMiTqEhMym16rhhKgZG2 + * zk2O9uUIBIxSj+NKMURHGaFKyIvLAgEC + * -----END DH PARAMETERS----- + */ +static unsigned char DEFAULT_DH_512_PRIM[] = { + 0xf4, 0xcd, 0x71, 0xe5, 0x8d, 0x18, 0x3f, 0x98, + 0x9f, 0x4f, 0x60, 0xb0, 0x02, 0x2e, 0xfe, 0x7c, + 0x09, 0xdf, 0x15, 0xc4, 0x1c, 0x71, 0x63, 0xba, + 0x04, 0xb8, 0x27, 0x94, 0x44, 0xc8, 0x93, 0xa8, + 0x48, 0x4c, 0xca, 0x6d, 0x7a, 0xae, 0x18, 0x4a, + 0x81, 0x91, 0xb6, 0xce, 0x4d, 0x8e, 0xf6, 0xe5, + 0x08, 0x04, 0x8c, 0x52, 0x8f, 0xe3, 0x4a, 0x31, + 0x44, 0x47, 0x19, 0xa1, 0x4a, 0xc8, 0x8b, 0xcb, +}; +static unsigned char DEFAULT_DH_512_GEN[] = { 0x02 }; +DH *OSSL_DEFAULT_DH_512 = NULL; + +/* + * -----BEGIN DH PARAMETERS----- + * MIGHAoGBAJ0lOVy0VIr/JebWn0zDwY2h+rqITFOpdNr6ugsgvkDXuucdcChhYExJ + * AV/ZD2AWPbrTqV76mGRgJg4EddgT1zG0jq3rnFdMj2XzkBYx3BVvfR0Arnby0RHR + * T4h7KZ/2zmjvV+eF8kBUHBJAojUlzxKj4QeO2x20FP9X5xmNUXeDAgEC + * -----END DH PARAMETERS----- + */ +static unsigned char DEFAULT_DH_1024_PRIM[] = { + 0x9d, 0x25, 0x39, 0x5c, 0xb4, 0x54, 0x8a, 0xff, + 0x25, 0xe6, 0xd6, 0x9f, 0x4c, 0xc3, 0xc1, 0x8d, + 0xa1, 0xfa, 0xba, 0x88, 0x4c, 0x53, 0xa9, 0x74, + 0xda, 0xfa, 0xba, 0x0b, 0x20, 0xbe, 0x40, 0xd7, + 0xba, 0xe7, 0x1d, 0x70, 0x28, 0x61, 0x60, 0x4c, + 0x49, 0x01, 0x5f, 0xd9, 0x0f, 0x60, 0x16, 0x3d, + 0xba, 0xd3, 0xa9, 0x5e, 0xfa, 0x98, 0x64, 0x60, + 0x26, 0x0e, 0x04, 0x75, 0xd8, 0x13, 0xd7, 0x31, + 0xb4, 0x8e, 0xad, 0xeb, 0x9c, 0x57, 0x4c, 0x8f, + 0x65, 0xf3, 0x90, 0x16, 0x31, 0xdc, 0x15, 0x6f, + 0x7d, 0x1d, 0x00, 0xae, 0x76, 0xf2, 0xd1, 0x11, + 0xd1, 0x4f, 0x88, 0x7b, 0x29, 0x9f, 0xf6, 0xce, + 0x68, 0xef, 0x57, 0xe7, 0x85, 0xf2, 0x40, 0x54, + 0x1c, 0x12, 0x40, 0xa2, 0x35, 0x25, 0xcf, 0x12, + 0xa3, 0xe1, 0x07, 0x8e, 0xdb, 0x1d, 0xb4, 0x14, + 0xff, 0x57, 0xe7, 0x19, 0x8d, 0x51, 0x77, 0x83 +}; +static unsigned char DEFAULT_DH_1024_GEN[] = { 0x02 }; +DH *OSSL_DEFAULT_DH_1024 = NULL; + +static DH* +ossl_create_dh(unsigned char *p, size_t plen, unsigned char *g, size_t glen) +{ + DH *dh; + + if ((dh = DH_new()) == NULL) ossl_raise(eDHError, NULL); + dh->p = BN_bin2bn(p, plen, NULL); + dh->g = BN_bin2bn(g, glen, NULL); + if (dh->p == NULL || dh->g == NULL){ + DH_free(dh); + ossl_raise(eDHError, NULL); + } + + return dh; +} + +/* + * INIT + */ +void +Init_ossl_dh() +{ +#if 0 /* let rdoc know about mOSSL and mPKey */ + mOSSL = rb_define_module("OpenSSL"); + mPKey = rb_define_module_under(mOSSL, "PKey"); +#endif + + eDHError = rb_define_class_under(mPKey, "DHError", ePKeyError); + cDH = rb_define_class_under(mPKey, "DH", cPKey); + rb_define_singleton_method(cDH, "generate", ossl_dh_s_generate, -1); + rb_define_method(cDH, "initialize", ossl_dh_initialize, -1); + rb_define_method(cDH, "public?", ossl_dh_is_public, 0); + rb_define_method(cDH, "private?", ossl_dh_is_private, 0); + rb_define_method(cDH, "to_text", ossl_dh_to_text, 0); + rb_define_method(cDH, "export", ossl_dh_export, 0); + rb_define_alias(cDH, "to_pem", "export"); + rb_define_alias(cDH, "to_s", "export"); + rb_define_method(cDH, "to_der", ossl_dh_to_der, 0); + rb_define_method(cDH, "public_key", ossl_dh_to_public_key, 0); + rb_define_method(cDH, "params_ok?", ossl_dh_check_params, 0); + rb_define_method(cDH, "generate_key!", ossl_dh_generate_key, 0); + rb_define_method(cDH, "compute_key", ossl_dh_compute_key, 1); + DEF_OSSL_PKEY_BN(cDH, dh, p); + DEF_OSSL_PKEY_BN(cDH, dh, g); + DEF_OSSL_PKEY_BN(cDH, dh, pub_key); + DEF_OSSL_PKEY_BN(cDH, dh, priv_key); + rb_define_method(cDH, "params", ossl_dh_get_params, 0); + + OSSL_DEFAULT_DH_512 = ossl_create_dh( + DEFAULT_DH_512_PRIM, sizeof(DEFAULT_DH_512_PRIM), + DEFAULT_DH_512_GEN, sizeof(DEFAULT_DH_512_GEN)); + OSSL_DEFAULT_DH_1024 = ossl_create_dh( + DEFAULT_DH_1024_PRIM, sizeof(DEFAULT_DH_1024_PRIM), + DEFAULT_DH_1024_GEN, sizeof(DEFAULT_DH_1024_GEN)); +} + +#else /* defined NO_DH */ +# warning >>> OpenSSL is compiled without DH support <<< +void +Init_ossl_dh() +{ + rb_warning("OpenSSL is compiled without DH support"); +} +#endif /* NO_DH */ + |