依赖于java.security.MessageDigest,支持MD5,SHA-1,SHA-256
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException; /**
* CiphertextUtil
*
* @author ysj
*/
public class CiphertextUtil {
public static final String MD5 = "MD5";
public static final String SHA_1 = "SHA-1";
public static final String SHA_256 = "SHA-256";
private static final char[] CH_HEX = {'0', '1', '2', '3', '4', '5', '6', '7', '8',
'9', 'A', 'B', 'C', 'D', 'E', 'F'}; /**
* 加密字符串
*
* @param sourceStr 需要加密目标字符串
* @param algorithmsName 算法名称(如:MD5,SHA-1,SHA-256)
* @return
*/
public static String passAlgorithmsCiphering(String sourceStr,String algorithmsName){
String password = "";
MessageDigest md;
try {
md = MessageDigest.getInstance(algorithmsName);
// 使用指定byte[]更新摘要
md.update(sourceStr.getBytes());
// 完成计算，返回结果数组
byte[] b = md.digest();
password = byteArrayToHex(b);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return password;
} /**
* 将字节数组转为十六进制字符串
*
* @param bytes
* @return 返回16进制字符串
*/
private static String byteArrayToHex(byte[] bytes) {
// 一个字节占8位，一个十六进制字符占4位；十六进制字符数组的长度为字节数组长度的两倍
char[] chars = new char[bytes.length * 2];
int index = 0;
for (byte b : bytes) {
// 取字节的高4位
chars[index++] = CH_HEX[b >>> 4 & 0xf];
// 取字节的低4位
chars[index++] = CH_HEX[b & 0xf];
}
return new String(chars);
}
}
依赖于org.apache.commons.codec.digest.DigestUtils,支持MD2,MD5,SHA-1,SHA-256,SHA-384,SHA-512
Apache下载地址:http://commons.apache.org/proper/commons-codec/download_codec.cgi
import org.apache.commons.codec.digest.DigestUtils; /**
* CiphertextUtil
*
* @author ysj
*/
public class CiphertextUtil {
public static final String MD2 = "MD2";
public static final String MD5 = "MD5";
public static final String SHA_1 = "SHA1";
public static final String SHA_256 = "SHA256";
public static final String SHA_384 = "SHA384";
public static final String SHA_512 = "SHA512"; /**
* 加密字符串
*
* @param sourceStr 需要加密目标字符串
* @param algorithmsName 算法名称(如:MD2,MD5,SHA1,SHA256,SHA384,SHA512)
* @return
*/
public static String passAlgorithmsCiphering(String sourceStr,String algorithmsName){
String password = "";
switch(algorithmsName){
case "MD2":
password = DigestUtils.md2Hex(sourceStr);
break;
case "MD5":
password = DigestUtils.md5Hex(sourceStr);
break;
case "SHA1":
password = DigestUtils.sha1Hex(sourceStr);
break;
case "SHA256":
password = DigestUtils.sha256Hex(sourceStr);
break;
case "SHA384":
password = DigestUtils.sha384Hex(sourceStr);
break;
case "SHA512":
password = DigestUtils.sha512Hex(sourceStr);
break;
}
return password;
}
}