package com.imooc.security.sha;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.codec.digest.DigestUtils;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.SHA1Digest;
import org.bouncycastle.crypto.digests.SHA224Digest;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
public class ImoocSHA {
private static String src = "cakin24 security sha";
public static void main(String[] args) {
jdkSHA1();
bcSHA1();
bcSHA224();
ccSHA1();
}
public static void jdkSHA1() {
try {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(src.getBytes());
System.out.println("jdk sha-1 : " + Hex.encodeHexString(md.digest()));
}
catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
}
public static void bcSHA1() {
Digest digest = new SHA1Digest();
digest.update(src.getBytes(), 0, src.getBytes().length);
byte[] sha1Bytes = new byte[digest.getDigestSize()];
digest.doFinal(sha1Bytes, 0);
System.out.println("bc sha-1 : " + org.bouncycastle.util.encoders.Hex.toHexString(sha1Bytes));
}
public static void bcSHA224() {
Digest digest = new SHA224Digest();
digest.update(src.getBytes(), 0, src.getBytes().length);
byte[] sha224Bytes = new byte[digest.getDigestSize()];
digest.doFinal(sha224Bytes, 0);
System.out.println("bc sha-224 : " + org.bouncycastle.util.encoders.Hex.toHexString(sha224Bytes));
}
public static void ccSHA1() {
System.out.println("cc sha1 - 1 :" + DigestUtils.sha1Hex(src.getBytes()));
System.out.println("cc sha1 - 2 :" + DigestUtils.sha1Hex(src));
}
//384、256、512。。。。。。}