More tests

src/ec.c

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+/*
+ * Copyright (c) 2014 - 2020 The GmSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the GmSSL Project.
+ *    (http://gmssl.org/)"
+ *
+ * 4. The name "GmSSL Project" must not be used to endorse or promote
+ *    products derived from this software without prior written
+ *    permission. For written permission, please contact
+ *    guanzhi1980@gmail.com.
+ *
+ * 5. Products derived from this software may not be called "GmSSL"
+ *    nor may "GmSSL" appear in their names without prior written
+ *    permission of the GmSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the GmSSL Project
+ *    (http://gmssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE GmSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <gmssl/ec.h>
+#include <gmssl/error.h>
+
+
+#define oid_sm_scheme 1,2,156,10197,1
+static uint32_t oid_sm2[] = { oid_sm_scheme,301 };
+
+#define oid_x9_62_curves oid_x9_62,3
+#define oid_x9_62_prime_curves oid_x9_62_curves,1
+static uint32_t oid_prime192v1[] = { oid_x9_62_prime_curves,1 };
+static uint32_t oid_prime256v1[] = { oid_x9_62_prime_curves,7 }; // NIST P-256
+
+#define oid_secg_curve 1,3,132,0
+static uint32_t oid_secp256k1[] = { oid_secg_curve,10 };
+static uint32_t oid_secp384r1[] = { oid_secg_curve,34 }; // NIST P-384
+static uint32_t oid_secp521r1[] = { oid_secg_curve,35 }; // NIST P-521
+
+
+static const ASN1_OID_INFO ec_named_curves[] = {
+	{ OID_sm2, "sm2p256v1", oid_sm2, sizeof(oid_sm2)/sizeof(int), 0, "SM2" },
+	{ OID_prime192v1, "prime192v1", oid_prime192v1, sizeof(oid_prime192v1)/sizeof(int), 0, },
+	{ OID_prime256v1, "prime256v1", oid_prime256v1, sizeof(oid_prime256v1)/sizeof(int), 0, "NIST P-256" },
+	{ OID_secp256k1, "secp256k1", oid_secp256k1, sizeof(oid_secp256k1)/sizeof(int) },
+	{ OID_secp384r1, "secp384r1", oid_secp384r1, sizeof(oid_secp384r1)/sizeof(int), 0, "NIST P-384" },
+	{ OID_secp521r1, "secp521r1", oid_secp521r1, sizeof(oid_secp521r1)/sizeof(int), 0, "NIST P-521" }
+};
+
+static const int ec_named_curves_count =
+	sizeof(ec_named_curves)/sizeof(ec_named_curves[0]);
+
+const char *ec_named_curve_name(int oid)
+{
+	const ASN1_OID_INFO *info;
+	if (!(info = asn1_oid_info_from_oid(ec_named_curves, ec_named_curves_count, oid))) {
+		error_print();
+		return NULL;
+	}
+	return info->name;
+}
+
+int ec_named_curve_from_name(const char *name)
+{
+	const ASN1_OID_INFO *info;
+	if (!(info = asn1_oid_info_from_name(ec_named_curves, ec_named_curves_count, name))) {
+		error_print();
+		return OID_undef;
+	}
+	return info->oid;
+}
+
+int ec_named_curve_to_der(int oid, uint8_t **out, size_t *outlen)
+{
+	const ASN1_OID_INFO *info;
+	if (!(info = asn1_oid_info_from_oid(ec_named_curves, ec_named_curves_count, oid))) {
+		error_print();
+		return -1;
+	}
+	if (asn1_object_identifier_to_der(info->nodes, info->nodes_cnt, out, outlen) != 1) {
+		error_print();
+		return -1;
+	}
+	return 1;
+}
+
+int ec_named_curve_from_der(int *oid, const uint8_t **in, size_t *inlen)
+{
+	int ret;
+	const ASN1_OID_INFO *info;
+	if ((ret = asn1_oid_info_from_der(&info, ec_named_curves, ec_named_curves_count, in, inlen)) != 1) {
+		if (ret < 0) error_print();
+		else *oid = -1;
+		return ret;
+	}
+	*oid = info->oid;
+	return 1;
+}
+
+int ec_point_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *d, size_t dlen)
+{
+	const uint8_t *p;
+	size_t len;
+
+	if (asn1_octet_string_from_der(&p, &len, &d, &dlen) != 1) goto err;
+	format_bytes(fp, fmt, ind, label, p, len);
+	if (asn1_length_is_zero(dlen) != 1) goto err;
+	return 1;
+err:
+	error_print();
+	return -1;
+}
+
+int ec_private_key_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *d, size_t dlen)
+{
+	int ret;
+	const uint8_t *a;
+	size_t alen;
+	const uint8_t *p;
+	size_t len;
+	int val;
+
+	format_print(fp, fmt, ind, "%s\n", label);
+	ind += 4;
+
+	if (asn1_int_from_der(&val, &d, &dlen) != 1) goto err;
+	format_print(fp, fmt, ind, "version: %d\n", val);
+	if (asn1_octet_string_from_der(&p, &len, &d, &dlen) != 1) goto err;
+	format_bytes(fp, fmt, ind, "privateKey", p, len);
+	if ((ret = asn1_explicit_from_der(0, &a, &alen, &d, &dlen)) < 0) goto err;
+	else if (ret) {
+		if (ec_named_curve_from_der(&val, &a, &alen) != 1) goto err;
+		format_print(fp, fmt, ind, "parameters: %s\n", ec_named_curve_name(val));
+		if (asn1_length_is_zero(alen) != 1) goto err;
+	}
+	format_print(fp, fmt, ind, "publicKey\n");
+	ind += 4;
+	if ((ret = asn1_explicit_from_der(1, &a, &alen, &d, &dlen)) < 0) goto err;
+	else if (ret) {
+		if (asn1_bit_octets_from_der(&p, &len, &a, &alen) != 1) goto err;
+		format_bytes(fp, fmt, ind, "ECPoint", p, len);
+		if (asn1_length_is_zero(alen) != 1) goto err;
+	}
+	if (asn1_length_is_zero(dlen) != 1) goto err;
+	return 1;
+err:
+	error_print();
+	return -1;
+}