From e548c4a3c602b87a2b01756c7eb82e125030cfb2 Mon Sep 17 00:00:00 2001
From: CPlusSharp <cgraefe83@gmail.com>
Date: Fri, 12 Nov 2021 21:39:02 +0100
Subject: [PATCH 1/3] fix ecdsa unit test includes

add missing base64x-1.1.js
---
 test/qunit-do-ecdsamod-unsupport.html | 1 +
 test/qunit-do-ecdsamod.html           | 1 +
 test/qunit-do-ecparam.html            | 1 +
 3 files changed, 3 insertions(+)

diff --git a/test/qunit-do-ecdsamod-unsupport.html b/test/qunit-do-ecdsamod-unsupport.html
index 24833682..904c24f7 100755
--- a/test/qunit-do-ecdsamod-unsupport.html
+++ b/test/qunit-do-ecdsamod-unsupport.html
@@ -32,6 +32,7 @@
 <script src="../ext/ec.js"></script>
 <script src="../ext/ec-patch.js"></script>
 
+<script src="../src/base64x-1.1.js"></script>
 <script src="../src/asn1hex-1.1.js"></script>
 <script src="../src/asn1-1.0.js"></script>
 <script src="../src/crypto-1.1.js"></script>
diff --git a/test/qunit-do-ecdsamod.html b/test/qunit-do-ecdsamod.html
index 2ea270ff..f6beac76 100755
--- a/test/qunit-do-ecdsamod.html
+++ b/test/qunit-do-ecdsamod.html
@@ -32,6 +32,7 @@
 <script src="../ext/ec.js"></script>
 <script src="../ext/ec-patch.js"></script>
 
+<script src="../src/base64x-1.1.js"></script>
 <script src="../src/asn1hex-1.1.js"></script>
 <script src="../src/asn1-1.0.js"></script>
 <script src="../src/crypto-1.1.js"></script>
diff --git a/test/qunit-do-ecparam.html b/test/qunit-do-ecparam.html
index 00768e44..c64c5156 100755
--- a/test/qunit-do-ecparam.html
+++ b/test/qunit-do-ecparam.html
@@ -32,6 +32,7 @@
 <script src="../ext/ec.js"></script>
 <script src="../ext/ec-patch.js"></script>
 
+<script src="../src/base64x-1.1.js"></script>
 <script src="../src/asn1hex-1.1.js"></script>
 <script src="../src/asn1-1.0.js"></script>
 <script src="../src/crypto-1.1.js"></script>

From f2037281239546c585f028a710c12391244b3e6b Mon Sep 17 00:00:00 2001
From: CPlusSharp <cgraefe83@gmail.com>
Date: Fri, 12 Nov 2021 18:53:30 +0100
Subject: [PATCH 2/3] Support P-521 curve

---
 sample/sample-ecdsa.html              |  1 +
 src/asn1x509-1.0.js                   |  1 +
 src/crypto-1.1.js                     |  3 +-
 src/ecdsa-modified-1.0.js             | 13 ++++++---
 src/ecparam-1.0.js                    |  3 +-
 src/keyutil-1.0.js                    |  2 +-
 test/qunit-do-ecdsamod-s.html         |  2 +-
 test/qunit-do-ecdsamod-unsupport.html |  2 +-
 test/qunit-do-ecdsamod.html           | 41 ++++++++++++++++++++++++++-
 test/qunit-do-ecparam.html            | 23 ++++++++++++++-
 10 files changed, 80 insertions(+), 11 deletions(-)

diff --git a/sample/sample-ecdsa.html b/sample/sample-ecdsa.html
index 0e10ba7f..f8b375d2 100755
--- a/sample/sample-ecdsa.html
+++ b/sample/sample-ecdsa.html
@@ -84,6 +84,7 @@ <h4>(Step1) choose supported EC curve name and generate key pair</h4>
 <option value="secp256r1">secp256r1 (= NIST P-256, P-256, prime256v1)
 <option value="secp256k1">secp256k1
 <option value="secp384r1">secp384r1 (= NIST P-384, P-384)
+<option value="secp521r1">secp521r1 (= NIST P-521, P-521)
 </select><br/>
 <input type="button" value="generate EC key pair" onClick="doGenerate();"/><br/>
 <p>
diff --git a/src/asn1x509-1.0.js b/src/asn1x509-1.0.js
index 837e7a4c..362b4348 100644
--- a/src/asn1x509-1.0.js
+++ b/src/asn1x509-1.0.js
@@ -4162,6 +4162,7 @@ KJUR.asn1.x509.OID = new function(params) {
         'secp256r1':            '1.2.840.10045.3.1.7',
         'secp256k1':            '1.3.132.0.10',
         'secp384r1':            '1.3.132.0.34',
+        'secp521r1':            '1.3.132.0.35',
 
         'pkcs5PBES2':           '1.2.840.113549.1.5.13',
         'pkcs5PBKDF2':          '1.2.840.113549.1.5.12',
diff --git a/src/crypto-1.1.js b/src/crypto-1.1.js
index 18d0d20d..7f251470 100644
--- a/src/crypto-1.1.js
+++ b/src/crypto-1.1.js
@@ -1012,6 +1012,7 @@ KJUR.crypto.Mac = function(params) {
  * <li>secp256k1</li>
  * <li>secp256r1, NIST P-256, P-256, prime256v1</li>
  * <li>secp384r1, NIST P-384, P-384</li>
+ * <li>secp521r1, NIST P-521, P-521</li>
  * </ul>
  * NOTE1: DSA signing algorithm is also supported since crypto 1.1.5.
  * <h4>EXAMPLES</h4>
@@ -1512,8 +1513,8 @@ KJUR.crypto.OID = new function() {
 	'2b8104001f': 'secp192k1',
 	'2b81040021': 'secp224r1',
 	'2b8104000a': 'secp256k1',
-	'2b81040023': 'secp521r1',
 	'2b81040022': 'secp384r1',
+	'2b81040023': 'secp521r1',
 	'2a8648ce380403': 'SHA1withDSA', // 1.2.840.10040.4.3
 	'608648016503040301': 'SHA224withDSA', // 2.16.840.1.101.3.4.3.1
 	'608648016503040302': 'SHA256withDSA', // 2.16.840.1.101.3.4.3.2
diff --git a/src/ecdsa-modified-1.0.js b/src/ecdsa-modified-1.0.js
index 6eeff5e8..8f7a2be3 100644
--- a/src/ecdsa-modified-1.0.js
+++ b/src/ecdsa-modified-1.0.js
@@ -39,6 +39,7 @@ if (typeof KJUR.crypto == "undefined" || !KJUR.crypto) KJUR.crypto = {};
  * <li>secp256r1, NIST P-256, P-256, prime256v1 (*)</li>
  * <li>secp256k1 (*)</li>
  * <li>secp384r1, NIST P-384, P-384 (*)</li>
+ * <li>secp521r1, NIST P-521, P-521 (*)</li>
  * </ul>
  * </p>
  */
@@ -134,7 +135,7 @@ KJUR.crypto.ECDSA = function(params) {
 	if (h.substr(0, 2) !== "04")
 	    throw "this method supports uncompressed format(04) only";
 
-	var charlen = this.ecparams.keylen / 4;
+	var charlen = this.ecparams.keycharlen;
 	if (h.length !== 2 + charlen * 2)
 	    throw "malformed public key hex length";
 
@@ -162,6 +163,8 @@ KJUR.crypto.ECDSA = function(params) {
 	    return "P-256";
 	if (s === "secp384r1" || s === "NIST P-384" || s === "P-384")
 	    return "P-384";
+	if (s === "secp521r1" || s === "NIST P-521" || s === "P-521")
+	    return "P-521";
 	return null;
     };
 
@@ -185,7 +188,7 @@ KJUR.crypto.ECDSA = function(params) {
 	var biX = epPub.getX().toBigInteger();
 	var biY = epPub.getY().toBigInteger();
 
-	var charlen = this.ecparams['keylen'] / 4;
+	var charlen = this.ecparams.keycharlen;
 	var hPrv = ("0000000000" + biPrv.toString(16)).slice(- charlen);
 	var hX   = ("0000000000" + biX.toString(16)).slice(- charlen);
 	var hY   = ("0000000000" + biY.toString(16)).slice(- charlen);
@@ -218,7 +221,7 @@ KJUR.crypto.ECDSA = function(params) {
 	var n = this.ecparams['n'];
 
 	// message hash is truncated with curve key length (FIPS 186-4 6.4)
-        var e = new _BigInteger(hashHex.substring(0, this.ecparams.keylen / 4), 16);
+        var e = new _BigInteger(hashHex.substring(0, this.ecparams.keycharlen), 16);
 
 	do {
 	    var k = this.getBigRandom(n);
@@ -277,7 +280,7 @@ KJUR.crypto.ECDSA = function(params) {
 	    var Q = _ECPointFp.decodeFromHex(this.ecparams['curve'], pubkeyHex);
 
 	    // message hash is truncated with curve key length (FIPS 186-4 6.4)
-            var e = new _BigInteger(hashHex.substring(0, this.ecparams.keylen / 4), 16);
+            var e = new _BigInteger(hashHex.substring(0, this.ecparams.keycharlen), 16);
 
 	    return this.verifyRaw(e, r, s, Q);
 	} catch (ex) {
@@ -846,10 +849,12 @@ KJUR.crypto.ECDSA.getName = function(s) {
     if (s === "2b8104000a") return "secp256k1"; // 1.3.132.0.10
     if (s === "2b81040021") return "secp224r1"; // 1.3.132.0.33
     if (s === "2b81040022") return "secp384r1"; // 1.3.132.0.34
+	if (s === "2b81040023") return "secp521r1"; // 1.3.132.0.35
     if ("|secp256r1|NIST P-256|P-256|prime256v1|".indexOf(s) !== -1) return "secp256r1";
     if ("|secp256k1|".indexOf(s) !== -1) return "secp256k1";
     if ("|secp224r1|NIST P-224|P-224|".indexOf(s) !== -1) return "secp224r1";
     if ("|secp384r1|NIST P-384|P-384|".indexOf(s) !== -1) return "secp384r1";
+	if ("|secp521r1|NIST P-521|P-521|".indexOf(s) !== -1) return "secp521r1";
     return null;
 };
 
diff --git a/src/ecparam-1.0.js b/src/ecparam-1.0.js
index dc11320c..eca5e57c 100644
--- a/src/ecparam-1.0.js
+++ b/src/ecparam-1.0.js
@@ -107,6 +107,7 @@ KJUR.crypto.ECParameterDB = new function() {
         var G = curve.decodePointHex("04" + gxHex + gyHex);
 	db[name]['name'] = name;
 	db[name]['keylen'] = keylen;
+  db[name]['keycharlen'] = Math.ceil(keylen / 8) * 2; // for P-521
         db[name]['curve'] = curve;
         db[name]['G'] = G;
         db[name]['n'] = n;
@@ -242,7 +243,7 @@ KJUR.crypto.ECParameterDB.regist(
   "051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00", // b
   "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409", // n
   "1", // h
-  "C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66", // gx
+  "00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66", // gx
   "011839296a789a3bc0045c8a5fb42c7d1bd998f54449579b446817afbd17273e662c97ee72995ef42640c550b9013fad0761353c7086a272c24088be94769fd16650", // gy
   ["NIST P-521", "P-521"]); // alias
 
diff --git a/src/keyutil-1.0.js b/src/keyutil-1.0.js
index 64a0dad6..3a769936 100644
--- a/src/keyutil-1.0.js
+++ b/src/keyutil-1.0.js
@@ -1238,7 +1238,7 @@ KEYUTIL.getKey = function(param, passcode, hextype) {
  * NOTE1: As for RSA algoirthm, public exponent has fixed
  * value '0x10001'.
  * NOTE2: As for EC algorithm, supported names of curve are
- * secp256r1, secp256k1 and secp384r1.
+ * secp256r1, secp256k1, secp384r1 and secp521r1.
  * NOTE3: DSA is not supported yet.
  * @example
  * var rsaKeypair = KEYUTIL.generateKeypair("RSA", 1024);
diff --git a/test/qunit-do-ecdsamod-s.html b/test/qunit-do-ecdsamod-s.html
index 5c1cf3e4..222ecd9a 100755
--- a/test/qunit-do-ecdsamod-s.html
+++ b/test/qunit-do-ecdsamod-s.html
@@ -61,7 +61,7 @@
 
 <b>NOTE:</b>
 <p>
-Currently this library works for only secp256r1, secp256k1 and secp384r1 EC curves
+Currently this library works for only secp256r1, secp256k1, secp384r1 and secp521 EC curves
 besides some other curves are pre-defined.
 </p>
 
diff --git a/test/qunit-do-ecdsamod-unsupport.html b/test/qunit-do-ecdsamod-unsupport.html
index 904c24f7..513f74fa 100755
--- a/test/qunit-do-ecdsamod-unsupport.html
+++ b/test/qunit-do-ecdsamod-unsupport.html
@@ -82,7 +82,7 @@
 
 <b>NOTE:</b>
 <p>
-Currently this library works for only secp256r1, secp256k1 and secp384r1 EC curves
+Currently this library works for only secp256r1, secp256k1, secp384r1 and secp521 EC curves
 besides some other curves are pre-defined.
 </p>
 
diff --git a/test/qunit-do-ecdsamod.html b/test/qunit-do-ecdsamod.html
index f6beac76..960d743b 100755
--- a/test/qunit-do-ecdsamod.html
+++ b/test/qunit-do-ecdsamod.html
@@ -217,6 +217,15 @@
   equal(keypair['ecpubhex'].length, (384 / 4) * 2 + 2, "public key hexstr length");
 });
 
+test("generate ECC key for secp521r1 curve", function() {
+  var ec = new KJUR.crypto.ECDSA({"curve": "secp521r1"});
+  var keypair = ec.generateKeyPairHex();
+
+  expect(2);
+  equal(keypair['ecprvhex'].length, Math.ceil(521 / 8) * 2, "private key hexstr length");
+  equal(keypair['ecpubhex'].length, (Math.ceil(521 / 8) * 2) * 2 + 2, "public key hexstr length");
+});
+
 test("key generation, signing and verification for secp256r1 curve", function() {
   // key generation
   var ec0 = new KJUR.crypto.ECDSA({'curve': 'secp256r1'});
@@ -232,6 +241,36 @@
   equal(result2, true, "ecdsa sign");
 });
 
+test("key generation, signing and verification for secp384r1 curve", function() {
+  // key generation
+  var ec0 = new KJUR.crypto.ECDSA({'curve': 'secp384r1'});
+  var keypair = ec0.generateKeyPairHex();
+
+  // signing
+  var ec1 = new KJUR.crypto.ECDSA({'curve': 'secp384r1'});
+  var sigHex = ec1.signHex(hashAAA256Hex, keypair.ecprvhex);
+
+  // signature validation
+  var ec2 = new KJUR.crypto.ECDSA({'curve': 'secp384r1'});
+  var result2 = ec2.verifyHex(hashAAA256Hex, sigHex, keypair.ecpubhex);
+  equal(result2, true, "ecdsa sign");
+});
+
+test("key generation, signing and verification for secp521r1 curve", function() {
+  // key generation
+  var ec0 = new KJUR.crypto.ECDSA({'curve': 'secp521r1'});
+  var keypair = ec0.generateKeyPairHex();
+
+  // signing
+  var ec1 = new KJUR.crypto.ECDSA({'curve': 'secp521r1'});
+  var sigHex = ec1.signHex(hashAAA256Hex, keypair.ecprvhex);
+
+  // signature validation
+  var ec2 = new KJUR.crypto.ECDSA({'curve': 'secp521r1'});
+  var result2 = ec2.verifyHex(hashAAA256Hex, sigHex, keypair.ecpubhex);
+  equal(result2, true, "ecdsa sign");
+});
+
 test("getPublicKeyXYHex() method test", function() {
   var ec1 = new KJUR.crypto.ECDSA({'curve': 'secp256r1', 'pub': ECK1PUBHEX});
   var xy = ec1.getPublicKeyXYHex();
@@ -295,7 +334,7 @@
 
 <b>NOTE:</b>
 <p>
-Currently this library works for only secp256r1, secp256k1 and secp384r1 EC curves
+Currently this library works for only secp256r1, secp256k1, secp384r1 and secp521 EC curves
 besides some other curves are pre-defined.
 </p>
 
diff --git a/test/qunit-do-ecparam.html b/test/qunit-do-ecparam.html
index c64c5156..f6906640 100755
--- a/test/qunit-do-ecparam.html
+++ b/test/qunit-do-ecparam.html
@@ -44,13 +44,34 @@
 
 test("ECParameterDB NIST P-256", function() {
   var db = KJUR.crypto.ECParameterDB;
-  expect(5);
+  expect(6);
   equal(typeof db.getByName("secp256r1"), "object", "secp256r1 defined");
   equal(typeof db.getByName("NIST P-256"), "object", "alias NIST P-256 defined");
   equal(typeof db.getByName("P-256"), "object", "alias P-256 defined");
   equal(typeof db.getByName("prime256v1"), "object", "alias prime256v1 defined");
   var ecparam = db.getByName("prime256v1");
   equal(ecparam['n'].toString(16), "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551", "prime256v1:n = ");
+  equal(ecparam.keycharlen, 64, "prime256v1:keycharlen = ");
+});
+
+test("ECParameterDB NIST P-384", function() {
+  var db = KJUR.crypto.ECParameterDB;
+  expect(4);
+  equal(typeof db.getByName("secp384r1"), "object", "secp384r1 defined");
+  equal(typeof db.getByName("NIST P-384"), "object", "alias NIST P-384 defined");
+  equal(typeof db.getByName("P-384"), "object", "alias P-384 defined");
+  var ecparam = db.getByName("secp384r1");
+  equal(ecparam.keycharlen, 96, "secp384r1:keycharlen = ");
+});
+
+test("ECParameterDB NIST P-521", function() {
+  var db = KJUR.crypto.ECParameterDB;
+  expect(4);
+  equal(typeof db.getByName("secp521r1"), "object", "secp521r1 defined");
+  equal(typeof db.getByName("NIST P-521"), "object", "alias NIST P-521 defined");
+  equal(typeof db.getByName("P-521"), "object", "alias P-521 defined");
+  var ecparam = db.getByName("secp521r1");
+  equal(ecparam.keycharlen, 132, "secp521r1:keycharlen = ");
 });
 
 });

From fae1b819b1171d5e30a2c0d58e8f48edbb2e4cbf Mon Sep 17 00:00:00 2001
From: CPlusSharp <cgraefe83@gmail.com>
Date: Sun, 14 Nov 2021 16:33:06 +0100
Subject: [PATCH 3/3] Test ECDSA public key generation against testvectors

- make ECDSA public key generation an own method so we can test it
- test against the testvectors
---
 src/ecdsa-modified-1.0.js   |  34 +-
 test/ecc-testvectors.js     | 635 ++++++++++++++++++++++++++++++++++++
 test/qunit-do-ecdsamod.html |  36 ++
 3 files changed, 696 insertions(+), 9 deletions(-)
 create mode 100644 test/ecc-testvectors.js

diff --git a/src/ecdsa-modified-1.0.js b/src/ecdsa-modified-1.0.js
index 8f7a2be3..25f5d26f 100644
--- a/src/ecdsa-modified-1.0.js
+++ b/src/ecdsa-modified-1.0.js
@@ -184,21 +184,37 @@ KJUR.crypto.ECDSA = function(params) {
     this.generateKeyPairHex = function() {
 	var biN = this.ecparams['n'];
 	var biPrv = this.getBigRandom(biN);
-	var epPub = this.ecparams['G'].multiply(biPrv);
-	var biX = epPub.getX().toBigInteger();
-	var biY = epPub.getY().toBigInteger();
-
 	var charlen = this.ecparams.keycharlen;
 	var hPrv = ("0000000000" + biPrv.toString(16)).slice(- charlen);
-	var hX   = ("0000000000" + biX.toString(16)).slice(- charlen);
-	var hY   = ("0000000000" + biY.toString(16)).slice(- charlen);
-	var hPub = "04" + hX + hY;
-
 	this.setPrivateKeyHex(hPrv);
-	this.setPublicKeyHex(hPub);
+	hPub = this.generatePublicKeyHex();
 	return {'ecprvhex': hPrv, 'ecpubhex': hPub};
     };
 
+	/**
+     * generate public key for EC private key
+     * @name generatePublicKeyHex
+     * @memberOf KJUR.crypto.ECDSA#
+     * @function
+     * @return {String} associative array of hexadecimal string of private and public key
+     * @example
+     * var ec = new KJUR.crypto.ECDSA({'curve': 'secp256r1', 'prv': prvHex});
+     * var pubhex = ec.generatePublicKeyHex(); // hexadecimal string of EC public key
+     * var pub ec.getPublicKeyXYHex() &rarr; { x: '01bacf...', y: 'c3bc22...' }
+     */
+	this.generatePublicKeyHex = function() {
+		var biPrv = new _BigInteger(this.prvKeyHex, 16);
+		var epPub = this.ecparams['G'].multiply(biPrv);
+		var biX = epPub.getX().toBigInteger();
+		var biY = epPub.getY().toBigInteger();
+		var charlen = this.ecparams.keycharlen;;
+		var hX   = ("0000000000" + biX.toString(16)).slice(- charlen);
+		var hY   = ("0000000000" + biY.toString(16)).slice(- charlen);
+		var hPub = "04" + hX + hY;
+		this.setPublicKeyHex(hPub);
+		return hPub;
+	}
+
     this.signWithMessageHash = function(hashHex) {
 	return this.signHex(hashHex, this.prvKeyHex);
     };
diff --git a/test/ecc-testvectors.js b/test/ecc-testvectors.js
new file mode 100644
index 00000000..9cd39381
--- /dev/null
+++ b/test/ecc-testvectors.js
@@ -0,0 +1,635 @@
+// testvectors from http://point-at-infinity.org/ecc/nisttv
+const ECC_TESTVECTORS = {
+    "secp256r1": [
+        {   "k": "1",
+            "x": "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296",
+            "y": "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5",
+        },
+        {   "k": "2",
+            "x": "7CF27B188D034F7E8A52380304B51AC3C08969E277F21B35A60B48FC47669978",
+            "y": "07775510DB8ED040293D9AC69F7430DBBA7DADE63CE982299E04B79D227873D1",
+        },
+        {   "k": "3",
+            "x": "5ECBE4D1A6330A44C8F7EF951D4BF165E6C6B721EFADA985FB41661BC6E7FD6C",
+            "y": "8734640C4998FF7E374B06CE1A64A2ECD82AB036384FB83D9A79B127A27D5032",
+        },
+        {   "k": "4",
+            "x": "E2534A3532D08FBBA02DDE659EE62BD0031FE2DB785596EF509302446B030852",
+            "y": "E0F1575A4C633CC719DFEE5FDA862D764EFC96C3F30EE0055C42C23F184ED8C6",
+        },
+        {   "k": "5",
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+            "y":"00BFB74A6B95B6D83F01C31E2EFC597D35B89C019A548EB6B25BA1BFB54095E83F68292E77BC2790324933EF5906AE4649CF77B458DDDB0A519386184E5CD7E4E80F",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005438",
+            "x":"008A75841259FDEDFF546F1A39573B4315CFED5DC7ED7C17849543EF2C54F2991652F3DBC5332663DA1BD19B1AEBE3191085015C024FA4C9A902ECC0E02DDA0CDB9A",
+            "y":"016904CFC03445DED67B62F35788FAB04DD6C522A99DEF42FB6C12D16A2B1F4647D4E43756F174BD5B54C76DCCE6EB56ACC923537F1C0B7E64A2A778B06D31B737F7",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005439",
+            "x":"0190EB8F22BDA61F281DFCFE7BB6721EC4CD901D879AC09AC7C34A9246B11ADA8910A2C7C178FCC263299DAA4DA9842093F37C2E411F1A8E819A87FF09A04F2F3320",
+            "y":"0014A26947B6E9EB456245154C4F35D4589F3D114DEBBDAE4DF4568028759D109D2D40ACB62BB2679B44AC909E9C23A814100C9769C68C6055E8D6AB4367ECA138A6",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005440",
+            "x":"01585389E359E1E21826A2F5BF157156D488ED34541B988746992C4AB145B8C6B6657429E1396134DA35F3C556DF725A318F4F50BABD85CD28661F45627967CBE207",
+            "y":"01D5D19E736575120C60F4AAAA85D8516C71CF7759AB11E3144937DA45D9C224BB91F2961A8A9FA8537BF00A9130B54027828C93D516D777F0CBC55F15794652D5B1",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005441",
+            "x":"000822C40FB6301F7262A8348396B010E25BD4E29D8A9B003E0A8B8A3B05F826298F5BFEA5B8579F49F08B598C1BC8D79E1AB56289B5A6F4040586F9EA54AA78CE68",
+            "y":"009CCE6EE2AABD03B7DFB7025491877AC465BB0712161D3F8EA4AF7C219EF988570E76163F55A6EE4B400F45F20F9A3A879660C456BFF6B8ECAC7529BD0EE0E87FE3",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005442",
+            "x":"0056D5D1D99D5B7F6346EEB65FDA0B073A0C5F22E0E8F5483228F018D2C2F7114C5D8C308D0ABFC698D8C9A6DF30DCE3BBC46F953F50FDC2619A01CEAD882816ECD4",
+            "y":"01C2D2E48264555D5EEF2E27CE85C6297B874A3A7D2FD7DB0F228E242675D93421AA942F0D6C321361D46ADC5CBA6E31E5A061898ED5A2210384A3947436FADADAE4",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005443",
+            "x":"01EE4569D6CDB59219532EFF34F94480D195623D30977FD71CF3981506ADE4AB01525FBCCA16153F7394E0727A239531BE8C2F66E95657F380AE23731BEDF79206B9",
+            "y":"0021FDAA52F339B0A7951D22D8FAB91C4EEED554448C25A57F718DBF56D9DFE575693548D2F1A99B7362069367B21D8B0DDFC238474AA35F2521E1533287A72BB0E8",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005444",
+            "x":"00652BF3C52927A432C73DBC3391C04EB0BF7A596EFDB53F0D24CF03DAB8F177ACE4383C0C6D5E3014237112FEAF137E79A329D7E1E6D8931738D5AB5096EC8F3078",
+            "y":"00A41910E42299FE291375D48CEEB57EED6EE327017178D1FFAE1227E8365FCB8F7844976836F8D30C8BCEEABFDEE30A00862E0FF8DA8CAB0807E8C33C17214F6F34",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005445",
+            "x":"0035B5DF64AE2AC204C354B483487C9070CDC61C891C5FF39AFC06C5D55541D3CEAC8659E24AFE3D0750E8B88E9F078AF066A1D5025B08E5A5E2FBC87412871902F3",
+            "y":"017DF6907BD9ED862D498C1FE8714F4B5449AADE5109191CD1E4A519C01D0E66F80D860D7C1AB45C7ABFADDB08AF56A47A114480510FB9662E261DE0B803CB91B2F2",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005446",
+            "x":"01A73D352443DE29195DD91D6A64B5959479B52A6E5B123D9AB9E5AD7A112D7A8DD1AD3F164A3A4832051DA6BD16B59FE21BAEB490862C32EA05A5919D2EDE37AD7D",
+            "y":"00C164FC4682059D2226686079393547EB0D0EAA8057D562FCE82D0754E05CAA3113D1D22B30723A8A4FD2A5312E213C38F30EFA36436C5A6FBDA0A7735E11793F1A",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005447",
+            "x":"00433C219024277E7E682FCB288148C282747403279B1CCC06352C6E5505D769BE97B3B204DA6EF55507AA104A3A35C5AF41CF2FA364D60FD967F43E3933BA6D783D",
+            "y":"010B44733807924D98FF580C1311112C0F4A394AEF83B25688BF54DE5D66F93BD2444C1C882160DAE0946C6C805665CDB70B1503416A123F0B08E41CA9299E0BE4FD",
+        },
+        {   "k":"6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005448",
+            "x":"00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66",
+            "y":"00E7C6D6958765C43FFBA375A04BD382E426670ABBB6A864BB97E85042E8D8C199D368118D66A10BD9BF3AAF46FEC052F89ECAC38F795D8D3DBF77416B89602E99AF",
+        }
+    ]
+};
diff --git a/test/qunit-do-ecdsamod.html b/test/qunit-do-ecdsamod.html
index 960d743b..08567cf5 100755
--- a/test/qunit-do-ecdsamod.html
+++ b/test/qunit-do-ecdsamod.html
@@ -39,6 +39,8 @@
 <script src="../src/ecdsa-modified-1.0.js"></script>
 <script src="../src/ecparam-1.0.js"></script>
 
+<script src="ecc-testvectors.js"></script>
+
 <script type="text/javascript">
 $(document).ready(function(){
 
@@ -128,6 +130,40 @@
 var ECK1PUBP8HEX = "3059301306072a8648ce3d020106082a8648ce3d03010703420004a01532a3c0900053de60fbefefcca58793301598d308b41e6f4e364e388c2711bef432c599148c94143d4ff46c2cb73e3e6a41d7eef23c047ea11e60667de425"; // k1.pub.der
 var ECK1CERTHEX = "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"; // k1.self.cer.der
 
+function checkTestVector(curve, tv) {
+    var biPrv = new BigInteger(tv.k, 10);
+    equal(tv.k, biPrv.toString(10), "k=" + tv.k);
+
+    var biX = new BigInteger(tv.x, 16);
+    var biY = new BigInteger(tv.y, 16);
+
+    var ec = new KJUR.crypto.ECDSA({curve: curve, prv: biPrv.toString(16) });
+    ec.generatePublicKeyHex();
+    var pub = ec.getPublicKeyXYHex();
+    var biPubX = new BigInteger(pub.x, 16);
+    var biPubY = new BigInteger(pub.y, 16);
+    equal(biX.toString(16), biPubX.toString(16), "X with k=" + tv.k);
+    equal(biY.toString(16), biPubY.toString(16), "Y with k=" + tv.k);
+}
+
+test("generatePublicKey (secp256r1)", function() {
+  for (var i=0; i<ECC_TESTVECTORS.secp256r1.length; i++) {
+    checkTestVector("secp256r1", ECC_TESTVECTORS.secp256r1[i]);
+  }
+});
+
+test("generatePublicKey (secp384r1)", function() {
+  for (var i=0; i<ECC_TESTVECTORS.secp384r1.length; i++) {
+    checkTestVector("secp384r1", ECC_TESTVECTORS.secp384r1[i]);
+  }
+});
+
+test("generatePublicKey (secp521r1)", function() {
+  for (var i=0; i<ECC_TESTVECTORS.secp521r1.length; i++) {
+    checkTestVector("secp521r1", ECC_TESTVECTORS.secp521r1[i]);
+  }
+});
+
 test("default(secp256r1) sign and verify aaa", function() {
   // signing a message
   var prv = "11b5737cf9d93f17c0cb1a84655d3995a02824097effa5edd8ee26381eb5d6c3";