diff options
Diffstat (limited to 'ext/openssl/ossl_pkey_dh.c')
| -rw-r--r-- | ext/openssl/ossl_pkey_dh.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/ext/openssl/ossl_pkey_dh.c b/ext/openssl/ossl_pkey_dh.c index 654d47973f..139af15230 100644 --- a/ext/openssl/ossl_pkey_dh.c +++ b/ext/openssl/ossl_pkey_dh.c @@ -238,6 +238,39 @@ ossl_dh_initialize(int argc, VALUE *argv, VALUE self) return self; } +static VALUE +ossl_dh_initialize_copy(VALUE self, VALUE other) +{ + EVP_PKEY *pkey; + DH *dh, *dh_other; + const BIGNUM *pub, *priv; + + GetPKey(self, pkey); + if (EVP_PKEY_base_id(pkey) != EVP_PKEY_NONE) + ossl_raise(eDHError, "DH already initialized"); + GetDH(other, dh_other); + + dh = DHparams_dup(dh_other); + if (!dh) + ossl_raise(eDHError, "DHparams_dup"); + EVP_PKEY_assign_DH(pkey, dh); + + DH_get0_key(dh_other, &pub, &priv); + if (pub) { + BIGNUM *pub2 = BN_dup(pub); + BIGNUM *priv2 = BN_dup(priv); + + if (!pub2 || priv && !priv2) { + BN_clear_free(pub2); + BN_clear_free(priv2); + ossl_raise(eDHError, "BN_dup"); + } + DH_set0_key(dh, pub2, priv2); + } + + return self; +} + /* * call-seq: * dh.public? -> true | false @@ -568,6 +601,7 @@ Init_ossl_dh(void) 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_copy_func(cDH, ossl_dh_initialize_copy); 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); |