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Diffstat (limited to 'ext/openssl/ossl_pkey_dsa.c')
-rw-r--r--ext/openssl/ossl_pkey_dsa.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/ext/openssl/ossl_pkey_dsa.c b/ext/openssl/ossl_pkey_dsa.c
index 333beae844..1ddc0d48f1 100644
--- a/ext/openssl/ossl_pkey_dsa.c
+++ b/ext/openssl/ossl_pkey_dsa.c
@@ -269,6 +269,26 @@ ossl_dsa_initialize(int argc, VALUE *argv, VALUE self)
return self;
}
+static VALUE
+ossl_dsa_initialize_copy(VALUE self, VALUE other)
+{
+ EVP_PKEY *pkey;
+ DSA *dsa, *dsa_new;
+
+ GetPKey(self, pkey);
+ if (EVP_PKEY_base_id(pkey) != EVP_PKEY_NONE)
+ ossl_raise(eDSAError, "DSA already initialized");
+ GetDSA(other, dsa);
+
+ dsa_new = ASN1_dup((i2d_of_void *)i2d_DSAPrivateKey, (d2i_of_void *)d2i_DSAPrivateKey, (char *)dsa);
+ if (!dsa_new)
+ ossl_raise(eDSAError, "ASN1_dup");
+
+ EVP_PKEY_assign_DSA(pkey, dsa_new);
+
+ return self;
+}
+
/*
* call-seq:
* dsa.public? -> true | false
@@ -610,6 +630,7 @@ Init_ossl_dsa(void)
rb_define_singleton_method(cDSA, "generate", ossl_dsa_s_generate, 1);
rb_define_method(cDSA, "initialize", ossl_dsa_initialize, -1);
+ rb_define_copy_func(cDSA, ossl_dsa_initialize_copy);
rb_define_method(cDSA, "public?", ossl_dsa_is_public, 0);
rb_define_method(cDSA, "private?", ossl_dsa_is_private, 0);