HTTP Body签名

定义

云商店每次调用商家的接口时会根据一定规则对请求生成signature，并且将signature通过URL PARAMS的方式添加到URL上，商家在接收到请求后需要同样的规则对请求体进行重新计算signature，并且与云商店传递的signature相比较，完全相同即为校验通过，通过URL PARAMS传递的参数有：

生成规则

• 对请求参数排序，根据参数名自然排序，例如，以字母a开头的参数名会排在以b开头的参数后面，如果首字母相同，将会对第二个字母进行排序，以此类推，直到字符串结束
• 获取规范请求字符串，规则：

canonicalRequest = accessKey + nonce + timestamp + Lowercase(HexEncode(HMAC_SHA256 (RequestPayload)))

• 根据规则对规范请求字符串，密钥取signature值，规则：

signature = HexEncode(HMAC_SHA256(canonicalRequest))

注意：accessKey即为访问密钥

举例

商家收到的调用请求数据示例如下：

curl -X POST -H 'Content-Type: application/json' 'https://www.isvwebsite.com/saasproduce?signature=af71c5a7ef45310b8dc05ab15f********379ebaa5eb61155c0&timestamp=1666677988730&nonce=RLLUammMSInlrNWb' --data '{"activity":"newInstance","buyerInfo":{"customerId":"688055*******f1aa90f1858","customerName":"CBC_marketplace_mw*******1","userId":"1e8**********7df834e4fe","userName":"CBC_marketplace_********1","mobilePhone":"1865********","email":"********@huawei.com"},"orderInfo":[{"businessId":"8a2************88-f41090522646","orderId":"CS**********","trialFlag":"0","orderAmount":12.78,"chargingMode":"PERIOD","periodType":"month","periodNumber":5,"provisionType":1,"productInfo":[{"skuCode":"a63ee5c9-4f86-11ed-9f95-fa163e8cb3b2","productId":"OFFI7889636**********8","linearValue":20}],"createTime":"20221024194509","expireTime":"20221224194509","extendParams":[{"name":"emailDomainName","value":"test.xxxx.com"},{"name":"extendParamName","value":"extendParamValue"}]}],"testFlag":"1"}'