net.siisise.ietf.pkcs1.RSA Maven / Gradle / Ivy
/*
* Copyright 2023 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.ietf.pkcs1;
import java.math.BigInteger;
import net.siisise.security.key.RSAMiniPrivateKey;
import net.siisise.security.key.RSAPublicKey;
/**
* RSAっぽいものをまとめるだけ.
*/
public class RSA {
/**
* 暗号化 (公開鍵)
* Section 5.1.1. RSAEP
*
* @param key (n, e) 公開鍵
* @param m message メッセージ 0 から n-1の間の整数
* @return c ciohertext 暗号 0 から n-1 の間の整数
*/
public static BigInteger rsaep(RSAPublicKey key, BigInteger m) {
return key.rsaep(m);
}
/**
* 暗号の復号 (数値渡し) (秘密鍵)
* Section 5.1.2. RSADP
* @param key 秘密鍵
* @param c ciphertext 暗号文 0 ～ n - 1 の整数
* @return m message メッセージ 0 - n-1 の整数
*/
public static BigInteger rsadp(RSAMiniPrivateKey key, BigInteger c) {
return key.rsadp(c);
}
/**
* 暗号の復号 (バイト列渡し)
* @param key 秘密鍵
* @param v 暗号
* @return プレーン
*/
public static BigInteger rsadp(RSAMiniPrivateKey key, byte[] v) {
return key.rsadp(v);
}
/**
* 秘密鍵で署名
* Section 5.2.1. RSASP1
* @param key 秘密鍵
* @param m
* @return
*/
public static BigInteger rsasp1(RSAMiniPrivateKey key, BigInteger m) {
return key.rsasp1(m);
}
/**
* 署名検証的なもの
* @param key 公開鍵
* @param s
* @return
*/
public static BigInteger rsavp1(RSAPublicKey key, BigInteger s) {
return key.rsavp1(s);
}
}