/**
|
* Alipay.com Inc.
|
* Copyright (c) 2004-2012 All Rights Reserved.
|
*/
|
package org.springblade.common.utils.sms;
|
|
|
import org.apache.commons.codec.binary.Base64;
|
|
import javax.crypto.Cipher;
|
import java.io.*;
|
import java.security.KeyFactory;
|
import java.security.PrivateKey;
|
import java.security.PublicKey;
|
import java.security.spec.InvalidKeySpecException;
|
import java.security.spec.PKCS8EncodedKeySpec;
|
import java.security.spec.X509EncodedKeySpec;
|
import java.util.ArrayList;
|
import java.util.Collections;
|
import java.util.List;
|
import java.util.Map;
|
|
/**
|
*
|
* @author runzhi
|
*/
|
public class AlipaySignature {
|
|
/** RSA最大加密明文大小 */
|
private static final int MAX_ENCRYPT_BLOCK = 117;
|
|
/** RSA最大解密密文大小 */
|
private static final int MAX_DECRYPT_BLOCK = 128;
|
|
|
|
/**
|
*
|
* @param sortedParams
|
* @return
|
*/
|
public static String getSignContent(Map<String, String> sortedParams) {
|
StringBuffer content = new StringBuffer();
|
List<String> keys = new ArrayList<String>(sortedParams.keySet());
|
Collections.sort(keys);
|
int index = 0;
|
for (int i = 0; i < keys.size(); i++) {
|
String key = keys.get(i);
|
String value = sortedParams.get(key);
|
if (StringUtils.areNotEmpty(key, value)) {
|
content.append((index == 0 ? "" : "&") + key + "=" + value);
|
index++;
|
}
|
}
|
return content.toString();
|
}
|
|
/**
|
* rsa内容签名
|
*
|
* @param content
|
* @param privateKey
|
* @param charset
|
* @return
|
* @throws AlipayApiException
|
*/
|
public static String rsaSign(String content, String privateKey, String charset,
|
String signType) throws AlipayApiException {
|
|
if (AlipayConstants.SIGN_TYPE_RSA.equals(signType)) {
|
|
return rsaSign(content, privateKey, charset);
|
} else if (AlipayConstants.SIGN_TYPE_RSA2.equals(signType)) {
|
|
return rsa256Sign(content, privateKey, charset);
|
} else {
|
|
throw new AlipayApiException("Sign Type is Not Support : signType=" + signType);
|
}
|
|
}
|
|
/**
|
* sha256WithRsa 加签
|
*
|
* @param content
|
* @param privateKey
|
* @param charset
|
* @return
|
* @throws AlipayApiException
|
*/
|
public static String rsa256Sign(String content, String privateKey,
|
String charset) throws AlipayApiException {
|
|
try {
|
PrivateKey priKey = getPrivateKeyFromPKCS8(AlipayConstants.SIGN_TYPE_RSA,
|
new ByteArrayInputStream(privateKey.getBytes()));
|
|
java.security.Signature signature = java.security.Signature
|
.getInstance(AlipayConstants.SIGN_SHA256RSA_ALGORITHMS);
|
|
signature.initSign(priKey);
|
|
if (StringUtils.isEmpty(charset)) {
|
signature.update(content.getBytes());
|
} else {
|
signature.update(content.getBytes(charset));
|
}
|
|
byte[] signed = signature.sign();
|
|
return new String(Base64.encodeBase64(signed));
|
} catch (Exception e) {
|
throw new AlipayApiException("RSAcontent = " + content + "; charset = " + charset, e);
|
}
|
|
}
|
|
/**
|
* sha1WithRsa 加签
|
*
|
* @param content
|
* @param privateKey
|
* @param charset
|
* @return
|
* @throws AlipayApiException
|
*/
|
public static String rsaSign(String content, String privateKey,
|
String charset) throws AlipayApiException {
|
try {
|
PrivateKey priKey = getPrivateKeyFromPKCS8(AlipayConstants.SIGN_TYPE_RSA,
|
new ByteArrayInputStream(privateKey.getBytes()));
|
|
java.security.Signature signature = java.security.Signature
|
.getInstance(AlipayConstants.SIGN_ALGORITHMS);
|
|
signature.initSign(priKey);
|
|
if (StringUtils.isEmpty(charset)) {
|
signature.update(content.getBytes());
|
} else {
|
signature.update(content.getBytes(charset));
|
}
|
|
byte[] signed = signature.sign();
|
|
return new String(Base64.encodeBase64(signed));
|
} catch (InvalidKeySpecException ie) {
|
throw new AlipayApiException("RSA私钥格式不正确，请检查是否正确配置了PKCS8格式的私钥", ie);
|
} catch (Exception e) {
|
throw new AlipayApiException("RSAcontent = " + content + "; charset = " + charset, e);
|
}
|
}
|
|
public static String rsaSign(Map<String, String> params, String privateKey,
|
String charset) throws AlipayApiException {
|
String signContent = getSignContent(params);
|
|
return rsaSign(signContent, privateKey, charset);
|
|
}
|
|
public static PrivateKey getPrivateKeyFromPKCS8(String algorithm,
|
InputStream ins) throws Exception {
|
if (ins == null || StringUtils.isEmpty(algorithm)) {
|
return null;
|
}
|
|
KeyFactory keyFactory = KeyFactory.getInstance(algorithm);
|
|
byte[] encodedKey = StreamUtil.readText(ins).getBytes();
|
|
encodedKey = Base64.decodeBase64(encodedKey);
|
|
return keyFactory.generatePrivate(new PKCS8EncodedKeySpec(encodedKey));
|
}
|
|
public static String getSignCheckContentV1(Map<String, String> params) {
|
if (params == null) {
|
return null;
|
}
|
|
params.remove("sign");
|
params.remove("sign_type");
|
|
StringBuffer content = new StringBuffer();
|
List<String> keys = new ArrayList<String>(params.keySet());
|
Collections.sort(keys);
|
|
for (int i = 0; i < keys.size(); i++) {
|
String key = keys.get(i);
|
String value = params.get(key);
|
content.append((i == 0 ? "" : "&") + key + "=" + value);
|
}
|
|
return content.toString();
|
}
|
|
public static String getSignCheckContentV2(Map<String, String> params) {
|
if (params == null) {
|
return null;
|
}
|
|
params.remove("sign");
|
|
StringBuffer content = new StringBuffer();
|
List<String> keys = new ArrayList<String>(params.keySet());
|
Collections.sort(keys);
|
|
for (int i = 0; i < keys.size(); i++) {
|
String key = keys.get(i);
|
String value = params.get(key);
|
content.append((i == 0 ? "" : "&") + key + "=" + value);
|
}
|
|
return content.toString();
|
}
|
|
public static boolean rsaCheckV1(Map<String, String> params, String publicKey,
|
String charset) throws AlipayApiException {
|
String sign = params.get("sign");
|
String content = getSignCheckContentV1(params);
|
|
return rsaCheckContent(content, sign, publicKey, charset);
|
}
|
|
public static boolean rsaCheckV1(Map<String, String> params, String publicKey,
|
String charset,String signType) throws AlipayApiException {
|
String sign = params.get("sign");
|
String content = getSignCheckContentV1(params);
|
|
return rsaCheck(content, sign, publicKey, charset,signType);
|
}
|
|
public static boolean rsaCheckV2(Map<String, String> params, String publicKey,
|
String charset) throws AlipayApiException {
|
String sign = params.get("sign");
|
String content = getSignCheckContentV2(params);
|
|
return rsaCheckContent(content, sign, publicKey, charset);
|
}
|
|
public static boolean rsaCheckV2(Map<String, String> params, String publicKey,
|
String charset,String signType) throws AlipayApiException {
|
String sign = params.get("sign");
|
String content = getSignCheckContentV2(params);
|
|
return rsaCheck(content, sign, publicKey, charset,signType);
|
}
|
|
public static boolean rsaCheck(String content, String sign, String publicKey, String charset,
|
String signType) throws AlipayApiException {
|
|
if (AlipayConstants.SIGN_TYPE_RSA.equals(signType)) {
|
|
return rsaCheckContent(content, sign, publicKey, charset);
|
|
} else if (AlipayConstants.SIGN_TYPE_RSA2.equals(signType)) {
|
|
return rsa256CheckContent(content, sign, publicKey, charset);
|
|
} else {
|
|
throw new AlipayApiException("Sign Type is Not Support : signType=" + signType);
|
}
|
|
}
|
|
public static boolean rsa256CheckContent(String content, String sign, String publicKey,
|
String charset) throws AlipayApiException {
|
try {
|
PublicKey pubKey = getPublicKeyFromX509("RSA",
|
new ByteArrayInputStream(publicKey.getBytes()));
|
|
java.security.Signature signature = java.security.Signature
|
.getInstance(AlipayConstants.SIGN_SHA256RSA_ALGORITHMS);
|
|
signature.initVerify(pubKey);
|
|
if (StringUtils.isEmpty(charset)) {
|
signature.update(content.getBytes());
|
} else {
|
signature.update(content.getBytes(charset));
|
}
|
|
return signature.verify(Base64.decodeBase64(sign.getBytes()));
|
} catch (Exception e) {
|
throw new AlipayApiException(
|
"RSAcontent = " + content + ",sign=" + sign + ",charset = " + charset, e);
|
}
|
}
|
|
public static boolean rsaCheckContent(String content, String sign, String publicKey,
|
String charset) throws AlipayApiException {
|
try {
|
PublicKey pubKey = getPublicKeyFromX509("RSA",
|
new ByteArrayInputStream(publicKey.getBytes()));
|
|
java.security.Signature signature = java.security.Signature
|
.getInstance(AlipayConstants.SIGN_ALGORITHMS);
|
|
signature.initVerify(pubKey);
|
|
if (StringUtils.isEmpty(charset)) {
|
signature.update(content.getBytes());
|
} else {
|
signature.update(content.getBytes(charset));
|
}
|
|
return signature.verify(Base64.decodeBase64(sign.getBytes()));
|
} catch (Exception e) {
|
throw new AlipayApiException(
|
"RSAcontent = " + content + ",sign=" + sign + ",charset = " + charset, e);
|
}
|
}
|
|
public static PublicKey getPublicKeyFromX509(String algorithm,
|
InputStream ins) throws Exception {
|
KeyFactory keyFactory = KeyFactory.getInstance(algorithm);
|
|
StringWriter writer = new StringWriter();
|
StreamUtil.io(new InputStreamReader(ins), writer);
|
|
byte[] encodedKey = writer.toString().getBytes();
|
|
encodedKey = Base64.decodeBase64(encodedKey);
|
|
return keyFactory.generatePublic(new X509EncodedKeySpec(encodedKey));
|
}
|
|
/**
|
* 验签并解密
|
* <p>
|
* <b>目前适用于公众号</b><br>
|
* params参数示例：
|
* <br>{
|
* <br>biz_content=M0qGiGz+8kIpxe8aF4geWJdBn0aBTuJRQItLHo9R7o5JGhpic/MIUjvXo2BLB++BbkSq2OsJCEQFDZ0zK5AJYwvBgeRX30gvEj6eXqXRt16/IkB9HzAccEqKmRHrZJ7PjQWE0KfvDAHsJqFIeMvEYk1Zei2QkwSQPlso7K0oheo/iT+HYE8aTATnkqD/ByD9iNDtGg38pCa2xnnns63abKsKoV8h0DfHWgPH62urGY7Pye3r9FCOXA2Ykm8X4/Bl1bWFN/PFCEJHWe/HXj8KJKjWMO6ttsoV0xRGfeyUO8agu6t587Dl5ux5zD/s8Lbg5QXygaOwo3Fz1G8EqmGhi4+soEIQb8DBYanQOS3X+m46tVqBGMw8Oe+hsyIMpsjwF4HaPKMr37zpW3fe7xOMuimbZ0wq53YP/jhQv6XWodjT3mL0H5ACqcsSn727B5ztquzCPiwrqyjUHjJQQefFTzOse8snaWNQTUsQS7aLsHq0FveGpSBYORyA90qPdiTjXIkVP7mAiYiAIWW9pCEC7F3XtViKTZ8FRMM9ySicfuAlf3jtap6v2KPMtQv70X+hlmzO/IXB6W0Ep8DovkF5rB4r/BJYJLw/6AS0LZM9w5JfnAZhfGM2rKzpfNsgpOgEZS1WleG4I2hoQC0nxg9IcP0Hs+nWIPkEUcYNaiXqeBc=,
|
* <br>sign=rlqgA8O+RzHBVYLyHmrbODVSANWPXf3pSrr82OCO/bm3upZiXSYrX5fZr6UBmG6BZRAydEyTIguEW6VRuAKjnaO/sOiR9BsSrOdXbD5Rhos/Xt7/mGUWbTOt/F+3W0/XLuDNmuYg1yIC/6hzkg44kgtdSTsQbOC9gWM7ayB4J4c=,
|
* sign_type=RSA,
|
* <br>charset=UTF-8
|
* <br>}
|
* </p>
|
* @param params
|
* @param alipayPublicKey 支付宝公钥
|
* @param cusPrivateKey 商户私钥
|
* @param isCheckSign 是否验签
|
* @param isDecrypt 是否解密
|
* @return 解密后明文，验签失败则异常抛出
|
* @throws AlipayApiException
|
*/
|
public static String checkSignAndDecrypt(Map<String, String> params, String alipayPublicKey,
|
String cusPrivateKey, boolean isCheckSign,
|
boolean isDecrypt) throws AlipayApiException {
|
String charset = params.get("charset");
|
String bizContent = params.get("biz_content");
|
if (isCheckSign) {
|
if (!rsaCheckV2(params, alipayPublicKey, charset)) {
|
throw new AlipayApiException("rsaCheck failure:rsaParams=" + params);
|
}
|
}
|
|
if (isDecrypt) {
|
return rsaDecrypt(bizContent, cusPrivateKey, charset);
|
}
|
|
return bizContent;
|
}
|
|
/**
|
* 验签并解密
|
* <p>
|
* <b>目前适用于公众号</b><br>
|
* params参数示例：
|
* <br>{
|
* <br>biz_content=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,
|
* <br>sign=rlqgA8O+RzHBVYLyHmrbODVSANWPXf3pSrr82OCO/bm3upZiXSYrX5fZr6UBmG6BZRAydEyTIguEW6VRuAKjnaO/sOiR9BsSrOdXbD5Rhos/Xt7/mGUWbTOt/F+3W0/XLuDNmuYg1yIC/6hzkg44kgtdSTsQbOC9gWM7ayB4J4c=,
|
* sign_type=RSA,
|
* <br>charset=UTF-8
|
* <br>}
|
* </p>
|
* @param params
|
* @param alipayPublicKey 支付宝公钥
|
* @param cusPrivateKey 商户私钥
|
* @param isCheckSign 是否验签
|
* @param isDecrypt 是否解密
|
* @return 解密后明文，验签失败则异常抛出
|
* @throws AlipayApiException
|
*/
|
public static String checkSignAndDecrypt(Map<String, String> params, String alipayPublicKey,
|
String cusPrivateKey, boolean isCheckSign,
|
boolean isDecrypt, String signType) throws AlipayApiException {
|
String charset = params.get("charset");
|
String bizContent = params.get("biz_content");
|
if (isCheckSign) {
|
if (!rsaCheckV2(params, alipayPublicKey, charset,signType)) {
|
throw new AlipayApiException("rsaCheck failure:rsaParams=" + params);
|
}
|
}
|
|
if (isDecrypt) {
|
return rsaDecrypt(bizContent, cusPrivateKey, charset);
|
}
|
|
return bizContent;
|
}
|
|
/**
|
* 加密并签名<br>
|
* <b>目前适用于公众号</b>
|
* @param bizContent 待加密、签名内容
|
* @param alipayPublicKey 支付宝公钥
|
* @param cusPrivateKey 商户私钥
|
* @param charset 字符集，如UTF-8, GBK, GB2312
|
* @param isEncrypt 是否加密，true-加密 false-不加密
|
* @param isSign 是否签名，true-签名 false-不签名
|
* @return 加密、签名后xml内容字符串
|
* <p>
|
* 返回示例：
|
* <alipay>
|
* <response>密文</response>
|
* <encryption_type>RSA</encryption_type>
|
* <sign>sign</sign>
|
* <sign_type>RSA</sign_type>
|
* </alipay>
|
* </p>
|
* @throws AlipayApiException
|
*/
|
public static String encryptAndSign(String bizContent, String alipayPublicKey,
|
String cusPrivateKey, String charset, boolean isEncrypt,
|
boolean isSign) throws AlipayApiException {
|
StringBuilder sb = new StringBuilder();
|
if (StringUtils.isEmpty(charset)) {
|
charset = AlipayConstants.CHARSET_GBK;
|
}
|
sb.append("<?xml version=\"1.0\" encoding=\"" + charset + "\"?>");
|
if (isEncrypt) {// 加密
|
sb.append("<alipay>");
|
String encrypted = rsaEncrypt(bizContent, alipayPublicKey, charset);
|
sb.append("<response>" + encrypted + "</response>");
|
sb.append("<encryption_type>RSA</encryption_type>");
|
if (isSign) {
|
String sign = rsaSign(encrypted, cusPrivateKey, charset);
|
sb.append("<sign>" + sign + "</sign>");
|
sb.append("<sign_type>RSA</sign_type>");
|
}
|
sb.append("</alipay>");
|
} else if (isSign) {// 不加密，但需要签名
|
sb.append("<alipay>");
|
sb.append("<response>" + bizContent + "</response>");
|
String sign = rsaSign(bizContent, cusPrivateKey, charset);
|
sb.append("<sign>" + sign + "</sign>");
|
sb.append("<sign_type>RSA</sign_type>");
|
sb.append("</alipay>");
|
} else {// 不加密，不加签
|
sb.append(bizContent);
|
}
|
return sb.toString();
|
}
|
|
/**
|
* 加密并签名<br>
|
* <b>目前适用于公众号</b>
|
* @param bizContent 待加密、签名内容
|
* @param alipayPublicKey 支付宝公钥
|
* @param cusPrivateKey 商户私钥
|
* @param charset 字符集，如UTF-8, GBK, GB2312
|
* @param isEncrypt 是否加密，true-加密 false-不加密
|
* @param isSign 是否签名，true-签名 false-不签名
|
* @return 加密、签名后xml内容字符串
|
* <p>
|
* 返回示例：
|
* <alipay>
|
* <response>密文</response>
|
* <encryption_type>RSA</encryption_type>
|
* <sign>sign</sign>
|
* <sign_type>RSA</sign_type>
|
* </alipay>
|
* </p>
|
* @throws AlipayApiException
|
*/
|
public static String encryptAndSign(String bizContent, String alipayPublicKey,
|
String cusPrivateKey, String charset, boolean isEncrypt,
|
boolean isSign,String signType) throws AlipayApiException {
|
StringBuilder sb = new StringBuilder();
|
if (StringUtils.isEmpty(charset)) {
|
charset = AlipayConstants.CHARSET_GBK;
|
}
|
sb.append("<?xml version=\"1.0\" encoding=\"" + charset + "\"?>");
|
if (isEncrypt) {// 加密
|
sb.append("<alipay>");
|
String encrypted = rsaEncrypt(bizContent, alipayPublicKey, charset);
|
sb.append("<response>" + encrypted + "</response>");
|
sb.append("<encryption_type>RSA</encryption_type>");
|
if (isSign) {
|
String sign = rsaSign(encrypted, cusPrivateKey, charset, signType);
|
sb.append("<sign>" + sign + "</sign>");
|
sb.append("<sign_type>");
|
sb.append(signType);
|
sb.append("</sign_type>");
|
}
|
sb.append("</alipay>");
|
} else if (isSign) {// 不加密，但需要签名
|
sb.append("<alipay>");
|
sb.append("<response>" + bizContent + "</response>");
|
String sign = rsaSign(bizContent, cusPrivateKey, charset, signType);
|
sb.append("<sign>" + sign + "</sign>");
|
sb.append("<sign_type>");
|
sb.append(signType);
|
sb.append("</sign_type>");
|
sb.append("</alipay>");
|
} else {// 不加密，不加签
|
sb.append(bizContent);
|
}
|
return sb.toString();
|
}
|
|
/**
|
* 公钥加密
|
*
|
* @param content 待加密内容
|
* @param publicKey 公钥
|
* @param charset 字符集，如UTF-8, GBK, GB2312
|
* @return 密文内容
|
* @throws AlipayApiException
|
*/
|
public static String rsaEncrypt(String content, String publicKey,
|
String charset) throws AlipayApiException {
|
try {
|
PublicKey pubKey = getPublicKeyFromX509(AlipayConstants.SIGN_TYPE_RSA,
|
new ByteArrayInputStream(publicKey.getBytes()));
|
Cipher cipher = Cipher.getInstance(AlipayConstants.SIGN_TYPE_RSA);
|
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
|
byte[] data = StringUtils.isEmpty(charset) ? content.getBytes()
|
: content.getBytes(charset);
|
int inputLen = data.length;
|
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
int offSet = 0;
|
byte[] cache;
|
int i = 0;
|
// 对数据分段加密
|
while (inputLen - offSet > 0) {
|
if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
|
cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
|
} else {
|
cache = cipher.doFinal(data, offSet, inputLen - offSet);
|
}
|
out.write(cache, 0, cache.length);
|
i++;
|
offSet = i * MAX_ENCRYPT_BLOCK;
|
}
|
byte[] encryptedData = Base64.encodeBase64(out.toByteArray());
|
out.close();
|
|
return StringUtils.isEmpty(charset) ? new String(encryptedData)
|
: new String(encryptedData, charset);
|
} catch (Exception e) {
|
throw new AlipayApiException("EncryptContent = " + content + ",charset = " + charset,
|
e);
|
}
|
}
|
|
/**
|
* 私钥解密
|
*
|
* @param content 待解密内容
|
* @param privateKey 私钥
|
* @param charset 字符集，如UTF-8, GBK, GB2312
|
* @return 明文内容
|
* @throws AlipayApiException
|
*/
|
public static String rsaDecrypt(String content, String privateKey,
|
String charset) throws AlipayApiException {
|
try {
|
PrivateKey priKey = getPrivateKeyFromPKCS8(AlipayConstants.SIGN_TYPE_RSA,
|
new ByteArrayInputStream(privateKey.getBytes()));
|
Cipher cipher = Cipher.getInstance(AlipayConstants.SIGN_TYPE_RSA);
|
cipher.init(Cipher.DECRYPT_MODE, priKey);
|
byte[] encryptedData = StringUtils.isEmpty(charset)
|
? Base64.decodeBase64(content.getBytes())
|
: Base64.decodeBase64(content.getBytes(charset));
|
int inputLen = encryptedData.length;
|
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
int offSet = 0;
|
byte[] cache;
|
int i = 0;
|
// 对数据分段解密
|
while (inputLen - offSet > 0) {
|
if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
|
cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
|
} else {
|
cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
|
}
|
out.write(cache, 0, cache.length);
|
i++;
|
offSet = i * MAX_DECRYPT_BLOCK;
|
}
|
byte[] decryptedData = out.toByteArray();
|
out.close();
|
|
return StringUtils.isEmpty(charset) ? new String(decryptedData)
|
: new String(decryptedData, charset);
|
} catch (Exception e) {
|
throw new AlipayApiException("EncodeContent = " + content + ",charset = " + charset, e);
|
}
|
}
|
|
}
|
