Java Key Public getPublicKeySpec(KeyPair kp)

Description

get Public Key Spec

License

Open Source License

Declaration

public static RSAPublicKeySpec getPublicKeySpec(KeyPair kp)
            throws NoSuchAlgorithmException, InvalidKeySpecException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.security.KeyFactory;
import java.security.KeyPair;

import java.security.NoSuchAlgorithmException;

import java.security.PublicKey;

import java.security.spec.InvalidKeySpecException;

import java.security.spec.RSAPublicKeySpec;

public class Main {
    public static RSAPublicKeySpec getPublicKeySpec(KeyPair kp)
            throws NoSuchAlgorithmException, InvalidKeySpecException {
        KeyFactory fact = KeyFactory.getInstance("RSA");
        RSAPublicKeySpec pub = fact.getKeySpec(kp.getPublic(), RSAPublicKeySpec.class);
        return pub;
    }/*  w  w  w.  j  a  va  2  s. c o m*/

    public static RSAPublicKeySpec getPublicKeySpec(PublicKey pubkey)
            throws NoSuchAlgorithmException, InvalidKeySpecException {
        KeyFactory fact = KeyFactory.getInstance("RSA");
        RSAPublicKeySpec pub = fact.getKeySpec(pubkey, RSAPublicKeySpec.class);
        return pub;
    }
}

Related

1. getPublicKeyFromBytes(final String algorithm, final byte[] publicKeyBytes)
2. getPublicKeyFromFile(File cert, String alias, String password)
3. getPublicKeyFromPEMFile(String fileName, String jceProvider)
4. getPublicKeyFromString(String certificateString)
5. getPublicKeyModulus(RSAPublicKey publicKey)
6. getPublicPutMethodForResultClass(final Class resultClass)