Add Serializers for EC

[openssl.git] / providers / implementations / serializers / serializer_ec_param.c

diff --git a/providers/implementations/serializers/serializer_ec_param.c b/providers/implementations/serializers/serializer_ec_param.c
new file mode 100644 (file)
index 0000000..fdeedb5
--- /dev/null
+++ b/providers/implementations/serializers/serializer_ec_param.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/core_numbers.h>
+#include <openssl/pem.h>
+#include <openssl/ec.h>
+#include <openssl/types.h>
+#include <openssl/params.h>
+#include "prov/bio.h"
+#include "prov/implementations.h"
+#include "prov/providercommonerr.h"
+#include "serializer_local.h"
+
+static OSSL_OP_serializer_newctx_fn ec_param_newctx;
+static OSSL_OP_serializer_freectx_fn ec_param_freectx;
+static OSSL_OP_serializer_serialize_data_fn ec_param_der_data;
+static OSSL_OP_serializer_serialize_object_fn ec_param_der;
+static OSSL_OP_serializer_serialize_data_fn ec_param_pem_data;
+static OSSL_OP_serializer_serialize_object_fn ec_param_pem;
+
+static OSSL_OP_serializer_serialize_data_fn ec_param_print_data;
+static OSSL_OP_serializer_serialize_object_fn ec_param_print;
+
+
+/* There is no specific implementation context, so use the provider context */
+static void *ec_param_newctx(void *provctx)
+{
+    return provctx;
+}
+
+static void ec_param_freectx(void *vctx)
+{
+}
+
+/* Public key : DER */
+static int ec_param_der_data(void *vctx, const OSSL_PARAM params[], BIO *out,
+                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    OSSL_OP_keymgmt_new_fn *ec_new;
+    OSSL_OP_keymgmt_free_fn *ec_free;
+    OSSL_OP_keymgmt_import_fn *ec_import;
+    int ok = 0;
+
+    ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
+
+    if (ec_import != NULL) {
+        EC_KEY *eckey;
+
+        /* vctx == provctx */
+        if ((eckey = ec_new(vctx)) != NULL
+            && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
+            && ec_param_der(vctx, eckey, out, cb, cbarg))
+            ok = 1;
+        ec_free(eckey);
+    }
+    return ok;
+}
+
+static int ec_param_der(void *vctx, void *eckey, BIO *out,
+                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    return i2d_ECPKParameters_bio(out, EC_KEY_get0_group(eckey));
+}
+
+/* Public key : PEM */
+static int ec_param_pem_data(void *vctx, const OSSL_PARAM params[], BIO *out,
+                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    OSSL_OP_keymgmt_new_fn *ec_new;
+    OSSL_OP_keymgmt_free_fn *ec_free;
+    OSSL_OP_keymgmt_import_fn *ec_import;
+    int ok = 0;
+
+    ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
+
+    if (ec_import != NULL) {
+        EC_KEY *eckey;
+
+        /* vctx == provctx */
+        if ((eckey = ec_new(vctx)) != NULL
+            && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
+            && ec_param_pem(vctx, eckey, out, cb, cbarg))
+            ok = 1;
+        ec_free(eckey);
+    }
+    return ok;
+}
+
+static int ec_param_pem(void *vctx, void *eckey, BIO *out,
+                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    return PEM_write_bio_ECPKParameters(out, EC_KEY_get0_group(eckey));
+}
+
+static int ec_param_print_data(void *vctx, const OSSL_PARAM params[], BIO *out,
+                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    OSSL_OP_keymgmt_new_fn *ec_new;
+    OSSL_OP_keymgmt_free_fn *ec_free;
+    OSSL_OP_keymgmt_import_fn *ec_import;
+    int ok = 0;
+
+    ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
+
+    if (ec_import != NULL) {
+        EC_KEY *eckey;
+
+        /* vctx == provctx */
+        if ((eckey = ec_new(vctx)) != NULL
+            && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
+            && ec_param_print(vctx, eckey, out, cb, cbarg))
+            ok = 1;
+        ec_free(eckey);
+    }
+    return ok;
+}
+
+static int ec_param_print(void *vctx, void *eckey, BIO *out,
+                           OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
+{
+    return ossl_prov_print_eckey(out, eckey, ec_print_params);
+}
+
+const OSSL_DISPATCH ec_param_der_serializer_functions[] = {
+    { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))ec_param_newctx },
+    { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ec_param_freectx },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))ec_param_der_data },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))ec_param_der },
+    { 0, NULL }
+};
+
+const OSSL_DISPATCH ec_param_pem_serializer_functions[] = {
+    { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))ec_param_newctx },
+    { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ec_param_freectx },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))ec_param_pem_data },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))ec_param_pem },
+    { 0, NULL }
+};
+
+const OSSL_DISPATCH ec_param_text_serializer_functions[] = {
+    { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))ec_param_newctx },
+    { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ec_param_freectx },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))ec_param_print },
+    { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
+      (void (*)(void))ec_param_print_data },
+    { 0, NULL }
+};