类似md5

就是值不一样

public class TestSha1 {
	public static final String HASH_ALGORITHM = "SHA-1";
	public static final int HASH_INTERATIONS = 1024;
	public static final int SALT_SIZE = 8;

	/**
	 * 生成安全的密码，生成随机的16位salt并经过1024次 sha-1 hash
	 */

	public static String entryptPassword(String plainPassword) {
		String plain = Encodes.unescapeHtml(plainPassword);
		byte[] salt = Digests.generateSalt(SALT_SIZE);
		byte[] hashPassword = Digests.sha1(plain.getBytes(), salt, HASH_INTERATIONS);
		return Encodes.encodeHex(salt) + Encodes.encodeHex(hashPassword);
	}

	/**
	 * 验证密码
	 *
	 * @param plainPassword
	 *            明文密码
	 * @param password
	 *            密文密码
	 * @return 验证成功返回true
	 */

	public static boolean validatePassword(String plainPassword, String password) {
		String plain = Encodes.unescapeHtml(plainPassword);
		byte[] salt = Encodes.decodeHex(password.substring(0, 16));
		byte[] hashPassword = Digests.sha1(plain.getBytes(), salt, HASH_INTERATIONS);
		return password.equals(Encodes.encodeHex(salt) + Encodes.encodeHex(hashPassword));
	}



	public static void main(String[] args) {
		String password ="javaweb.top";
		System.out.println(TestSha1.entryptPassword(password));
		String  code="07f60ff00254f4f83189a589008edfa381a8dbefcecb81726bc9d0ad";
		System.out.println("值是否相同"+TestSha1.validatePassword(password,code));

	}

}