Here you can find the source of generateRsaPublicKey(BigInteger modulus, BigInteger publicExponent)
public static RSAPublicKey generateRsaPublicKey(BigInteger modulus, BigInteger publicExponent) throws Exception
//package com.java2s; /*/*ww w . jav a 2 s . c o m*/ * Copyright (c) 2015 SK PLANET. ALL Rights Reserved. * * Syrup Pay Jose Library * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.math.BigInteger; import java.security.*; import java.security.interfaces.RSAPublicKey; import java.security.spec.*; public class Main { public static RSAPublicKey generateRsaPublicKey(BigInteger modulus, BigInteger publicExponent) throws Exception { KeyFactory keyFactory = KeyFactory.getInstance("RSA"); return (RSAPublicKey) keyFactory.generatePublic(new RSAPublicKeySpec(modulus, publicExponent)); } }