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Diffstat (limited to 'ext/openssl/ossl_pkey_rsa.c')
-rw-r--r--ext/openssl/ossl_pkey_rsa.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/ext/openssl/ossl_pkey_rsa.c b/ext/openssl/ossl_pkey_rsa.c
index 669e84efca2..8a213549671 100644
--- a/ext/openssl/ossl_pkey_rsa.c
+++ b/ext/openssl/ossl_pkey_rsa.c
@@ -222,6 +222,31 @@ ossl_rsa_export(int argc, VALUE *argv, VALUE self)
return str;
}
+static VALUE
+ossl_rsa_to_der(VALUE self)
+{
+ EVP_PKEY *pkey;
+ int (*i2d_func)_((const RSA*, unsigned char**));
+ unsigned char *p;
+ long len;
+ VALUE str;
+
+ GetPKeyRSA(self, pkey);
+ if(RSA_HAS_PRIVATE(pkey->pkey.rsa))
+ i2d_func = i2d_RSAPrivateKey;
+ else
+ i2d_func = i2d_RSAPublicKey;
+ if((len = i2d_func(pkey->pkey.rsa, NULL)) <= 0)
+ ossl_raise(eRSAError, NULL);
+ str = rb_str_new(0, len);
+ p = RSTRING(str)->ptr;
+ if(i2d_func(pkey->pkey.rsa, &p) < 0)
+ ossl_raise(eRSAError, NULL);
+ ossl_str_adjust(str, p);
+
+ return str;
+}
+
#define ossl_rsa_buf_size(pkey) (RSA_size((pkey)->pkey.rsa)+16)
static VALUE
@@ -440,6 +465,7 @@ Init_ossl_rsa()
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);