提示

双向认证
商户、合作方与易生支付交易报文双向认证。

商户、合作方保存自己的私钥证书和易生支付公钥证书。

易生支付保存自己的私钥证书和商户、合作方的公钥证书。

商户、合作方向易生支付发起交易请求时，商户、合作方使用自己的私钥签名。

易生支付接收商户、合作交易请求时，易生支付使用商户、合作方公钥进行验签。

易生支付返回商户、合作方应答时，易生支付使用自己的私钥签名。

商户、合作方接收易生支付交易应答时，商户、合作方使用易生支付的公钥验签

多证书
支持多证书，多证书时交易报文上送证书号certificateId。

公钥私钥

易企通2.0  易生公钥（生产环境）
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCLLVY70e67BcK4V08P+69dfBeMmMYDopf3HF9G6meqPTVxyGYlEb0XwT0UA6g8t2HzG8FaKgTFKgOvhr+EFbBcF+AYdrgFYZSjR4hWBkWiOyKC66wQ7kQhYzC4kwetcDp5TftJfSivbAC1Lm8/Gf2+ZpaDuHDPjLCFS2gQYI5dqwIDAQAB


易企通2.0  易生公钥（测试联调环境）
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArgVerkGaSEQvZIOpLjeUoVpL0lSYLc04+txtPFtfm5r5XFbaNaf5Ahu0lziGEwWzrGONThSsnb3U9pqoY6BpqviN4h+Guw5oEdHr1T/eDkQD5urgQUaZA6lDoU9XC662r+0kpbKidvXIsK2CrShN+BF8HEJmRZuhglxh25OHWIWqQiUDjLZC+QJRZqUu9Uzy9RBBu7qa0f0xbqYl3hnYi+vH++SsyOavO2gUVQyKU5Kkt5ZJVpZFQvD3BXePgwJSpsvrjhj0hiYp2v6PScN9XHP1vXB4wtIYSFYwmVus1KkV/LfDzUm6zHjliHYTVl6lPMhveIVJlRIqInRZRHxg5QIDAQAB


易企通2.0  商户私钥（测试联调环境）
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

加签

注意: 空字符串也参与签名

【商户加签】  商户使用 "商户自己的RSA私钥" 对请求报文进行加签
待签名串 = ASCII排序(reqHeader) + MD5大写(ASCII排序(reqBody))
reqSign = RSA私钥加签(待签名串, 商户私钥)

对报文中的请求头reqHeader和请求体reqBody，按照名称的ASCII码从小到大先分别进行排序，如果名称的首字母相同，则比较第二个字母，以此类推。

将排序后的reqBody计算Md5(hex转大写)，再将排序后的请求头reqHeader和请求体reqBody计算得到的Md5值进行拼接，拼接后的字符串使用RSA2私钥签名（公私钥由商户自己生成，密钥位数为2048（SHA256WITHRSA）位【其他算法使用其他算法的密钥和加密方式】，私钥商户自己保存，公钥提供给易生验签，私钥见5.5），得到签名串reqSign。

请求报文--待加签的内容

{
  "reqHeader": {
    "transTime": "20250530110821",
    "reqId": "D01X66666667068"
  },
  "reqSign": "",
  "reqBody": {
    "reqInfo": {
      "mchtCode": "531000023045074"
    },
    "reqOrderInfo": {
      "orgTrace": "2623719848982326170072",
      "oriOrgTrace": "161800076769295477468",
      "oriTransDate": "20250530",
      "productCode": ""
    },
    "payInfo": {
      "transDate": "20250530"
    }
  }
}

加签过程

测试联调环境 商户RSA 私钥
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

============================私钥加签 开始============================

空字符串也参与签名

ASCII排序(reqHeader)
{"reqId":"D01X66666667068","transTime":"20250530110821"}

ASCII排序(reqBody) 
{"payInfo":{"transDate":"20250530"},"reqInfo":{"mchtCode":"531000023045074"},"reqOrderInfo":{"orgTrace":"2623719848982326170072","oriOrgTrace":"161800076769295477468","oriTransDate":"20250530","productCode":""}}

MD5大写(ASCII排序(reqBody))
DF9518E710F200DD0EE29BB0C0DE8D86

待签名串 = ASCII排序(reqHeader) + MD5大写(ASCII排序(reqBody))
{"reqId":"D01X66666667068","transTime":"20250530110821"}DF9518E710F200DD0EE29BB0C0DE8D86

reqSign = RSA私钥加签(待签名串, 商户私钥)
aQGDgwYuo/IjaaE1SFcPMYLBf64JlQ7OpTNwgFG4uUqAbx5OtSvVD+VAOFPr6R8syaNI5T8iRzdcBvOh7WaBIEzeV/8F7qUB0R+NZmW+JQwy6JnErw1n74Vp0uP2YvICB2POnQ/MSJbWpYWl9E6I3zNG8dfBGe5xkusa+y1Lw10GAylM0DlygBLReLd0FOTDTFdJDxLI4bQWtmUaNfVuKLm8E8Qm/VKMf0DQBU5GYinFd3y0UdEOaZfPqv5bjyCISKnwjqOluYE6DlnyFixs7fYyTrkmbOfeZ9an+wIOgyoGOvU4Raor21A84si7KFxldzi06zaaXisqP/SDB56Heg==

============================私钥加签 结束============================

验签

注意: 空字符串也参与签名

【商户验签】  商户使用 "易生的RSA公钥" 对易生的响应报文 进行验签
待签名串 = ASCII排序(rspHeader) + MD5大写(ASCII排序(rspBody))
验签结果 = RSA公钥验签(待签名串, rspSign, 易生公钥)

商户/代理方用以验证返回的报文是否合法。

对返回报文中的返回头rspHeader和返回体rspBody，按照名称的ASCII码从小到大先分别进行排序，如果名称的首字母相同，则比较第二个字母，以此类推。将排序后的rspBody计算Md5(hex转大写)，再将排序后的请求头rspHeader和请求体rspBody计算得到的Md5值进行拼接，拼接后的字符串，返回报文中rspSign签名，使用RSA公钥验签（公钥由易生提供，密钥位数为2048（SHA256WITHRSA）位【其他算法使用其他算法的密钥和加密方式】，计算签名是否正确用以确认易生签发的报文数据。

注意

若rspBody没有返回则算MD5的时候用 {}

响应报文--待验签的内容

{
    "rspBody": {
        "aliRespParamInfo": {
            "buyerId": "2088612409652625",
            "buyerLogonId": "177****1294",
            "fundBillList": [
                {
                    "amount": 1,
                    "fundChannel": "ALIPAYACCOUNT"
                }
            ]
        },
        "respStateInfo": {
            "respDesc": "处理成功",
            "transStatusDesc": "支付成功",
            "appendRetMsg": "Success",
            "appendRetCode": "10000",
            "transState": "0",
            "respCode": "000000"
        },
        "settleRespParamInfo": {
            "delaySettleFlag": "0",
            "settleTime": "20250530103056",
            "splitSettleFlag": "0",
            "settleAmt": 1,
            "settleDate": "20250530",
            "patnerSettleFlag": "0"
        },
        "respOrderInfo": {
            "orgTrace": "161800076769295477468",
            "timeEnd": "103056",
            "cardType": "000U",
            "productTrace": "YQ2025053011082155263",
            "stlmAmountSum": 0,
            "dateEnd": "20250530",
            "pcTrace": "2025053022001452621411391226",
            "userId": "2088612409652625",
            "unTrace": "792025053022001452621411391226",
            "transAmount": 1,
            "payAmount": 1,
            "refundAmountSum": 0,
            "outTrace": "9961683369423587676160",
            "separateAmountSum": 0
        }
    },
    "rspHeader": {
        "easyPayCertificateId": "00000000",
        "rspCode": "000000",
        "rspInfo": "SUCCESS"
    },
    "rspSign": "n+wyM0lzrbovU61wIF4mH6bdaZkPNZsm8BDn6hpcSBSPk4LQfVHLhaTlKuK5ehCyvktethjr9Vhmtk/5Hgq3fSxvyawJIhMs4/PX+lWhLycs2WAkjSIXUONi0SwZXm2sqi2DXNLxaoNzuOM9zwtZvYnggjca3aweBbXznc++OIzstzMOWg6nlPQiFxBGVv7tUXVQVnJUp5qhTDIomw3dhYgi6b6MrMlyeV4YvChsOdFwblc/dZHWX1riVl9KbbjyiFuHUhA4eZOCDEHMz+l3hVk+ibkw7HwfJY8bcfHRBkQpBSbz82HntSG5A6zcH/iLI2CnUHOVhhEORoAzXwRSYA=="
}

验签 RSAUtils.verify（待验签字段，rspSign，易生公钥）

============================公钥验签 开始============================


待签名串 = ASCII排序(rspHeader) + MD5大写(ASCII排序(rspBody))
{"easyPayCertificateId":"00000000","rspCode":"000000","rspInfo":"SUCCESS"}305434491BCF68934DF1F610B1041C08

rspSign
n+wyM0lzrbovU61wIF4mH6bdaZkPNZsm8BDn6hpcSBSPk4LQfVHLhaTlKuK5ehCyvktethjr9Vhmtk/5Hgq3fSxvyawJIhMs4/PX+lWhLycs2WAkjSIXUONi0SwZXm2sqi2DXNLxaoNzuOM9zwtZvYnggjca3aweBbXznc++OIzstzMOWg6nlPQiFxBGVv7tUXVQVnJUp5qhTDIomw3dhYgi6b6MrMlyeV4YvChsOdFwblc/dZHWX1riVl9KbbjyiFuHUhA4eZOCDEHMz+l3hVk+ibkw7HwfJY8bcfHRBkQpBSbz82HntSG5A6zcH/iLI2CnUHOVhhEORoAzXwRSYA==

测试联调环境 易生RSA 公钥
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArgVerkGaSEQvZIOpLjeUoVpL0lSYLc04+txtPFtfm5r5XFbaNaf5Ahu0lziGEwWzrGONThSsnb3U9pqoY6BpqviN4h+Guw5oEdHr1T/eDkQD5urgQUaZA6lDoU9XC662r+0kpbKidvXIsK2CrShN+BF8HEJmRZuhglxh25OHWIWqQiUDjLZC+QJRZqUu9Uzy9RBBu7qa0f0xbqYl3hnYi+vH++SsyOavO2gUVQyKU5Kkt5ZJVpZFQvD3BXePgwJSpsvrjhj0hiYp2v6PScN9XHP1vXB4wtIYSFYwmVus1KkV/LfDzUm6zHjliHYTVl6lPMhveIVJlRIqInRZRHxg5QIDAQAB


验签结果 = RSA公钥验签(待签名串, rspSign, 易生公钥)
true


============================公钥验签 结束============================


============ 公钥验签  获取待签名串 的详细步骤 ===========
ASCII排序(rspHeader)
{"easyPayCertificateId":"00000000","rspCode":"000000","rspInfo":"SUCCESS"}

ASCII排序(rspBody) 
{"aliRespParamInfo":{"buyerId":"2088612409652625","buyerLogonId":"177****1294","fundBillList":[{"amount":1,"fundChannel":"ALIPAYACCOUNT"}]},"respOrderInfo":{"cardType":"000U","dateEnd":"20250530","orgTrace":"161800076769295477468","outTrace":"9961683369423587676160","payAmount":1,"pcTrace":"2025053022001452621411391226","productTrace":"YQ2025053011082155263","refundAmountSum":0,"separateAmountSum":0,"stlmAmountSum":0,"timeEnd":"103056","transAmount":1,"unTrace":"792025053022001452621411391226","userId":"2088612409652625"},"respStateInfo":{"appendRetCode":"10000","appendRetMsg":"Success","respCode":"000000","respDesc":"处理成功","transState":"0","transStatusDesc":"支付成功"},"settleRespParamInfo":{"delaySettleFlag":"0","patnerSettleFlag":"0","settleAmt":1,"settleDate":"20250530","settleTime":"20250530103056","splitSettleFlag":"0"}}

MD5大写(ASCII排序(rspBody))
305434491BCF68934DF1F610B1041C08

待签名串 = ASCII排序(rspHeader) + MD5大写(ASCII排序(rspBody))
{"easyPayCertificateId":"00000000","rspCode":"000000","rspInfo":"SUCCESS"}305434491BCF68934DF1F610B1041C08

============ 公钥验签  获取待签名串 的详细步骤 ===========

2.2 加签验签说明

提示#

公钥私钥#

加签#

验签#

提示

公钥私钥

加签

验签