@Test
public void testSign() throws Exception {

	System.err.println("私钥加密——公钥解密");
	String inputStr = "sign";
	byte[] data = inputStr.getBytes();
	byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
			keyStorePath, alias, password);
	byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
			certificatePath);
	String outputStr = new String(decodedData);
	System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
	assertEquals(inputStr, outputStr);
	System.err.println("私钥签名——公钥验证签名");
	// 产生签名
	String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
			password);
	System.err.println("签名:\r" + sign);
	// 验证签名
	boolean status = CertificateCoder.verify(encodedData, sign,
			certificatePath);
	System.err.println("状态:\r" + status);
	assertTrue(status);
}