net.siisise.security.sign.ECDSA Maven / Gradle / Ivy
/*
* Copyright 2024 okome.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.siisise.security.sign;
import java.math.BigInteger;
/**
* ECDSA
*/
public class ECDSA implements SignVerify {
EclipticCurve E;
BigInteger q;
G g;
//秘密鍵 [1, q-1]
BigInteger x;
/**
*
* @param e 楕円曲線E
* @param q 素数 160bit以上
* @param g E上のqの位置
*/
public ECDSA(EclipticCurve e, BigInteger q, G g) {
this.E = e;
this.q = q;
this.g = g;
}
@Override
public int getKeyLength() {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void update(byte[] src, int offset, int length) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public byte[] sign() {
throw new UnsupportedOperationException("Not supported yet.");
}
static class EclipticCurve {
}
static class G {
}
}