华为云APP认证

CanonicalQueryString

SingedHeaders

HashedCanonicalRequest

CanonicalURI

华为云APP认证

App Secret

body为空则为空字符串。先SHA-256哈希，然后转十六进制，如e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

HTTP请求方法，如POST

规范请求头，必须包含X-Sdk-Date，没有则以当前时间赋值，Host没有也加上，如host:apigw.exampleRegion.comx-sdk-date:20221111T093443Z

RequestDateTime

      HTTPRequestMethod + '\' +      CanonicalURI + '\' +      CanonicalQueryString + '\' +      CanonicalHeaders + '\' +      SignedHeaders + '\' +      HexEncode(Hash(RequestPayload))如GET/app1/a=1&b=2host:c967a237-cd6c-470e-906f-a8655461897e.apigw.exampleRegion.comx-sdk-date:20191111T093443Zhost;x-sdk-datee3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

App Key

HexEncode(Hash(RequestPayload))

HTTPRequestMethod

App Secret 来自API应用管理

CanonicalHeaders

Algorithm + \ +    RequestDateTime + \ +    HashedCanonicalRequest，如SDK-HMAC-SHA25620191111T093443Zaf71c5a7ef45310b8dc05ab15f7da50189ffa81a95cc284379ebaa5eb61155c0

StringToSign

规范查询字符串，及查询参数，没有则为空字符串，如parm1=value1&parm2=

App Key 来自API应用管理

CanonicalRequest

请求时间戳，与请求头X-Sdk-Date值相同，格式YYYYMMDDTHHMMSSZ，如20191111T093443Z

签名算法 SDK-HMAC-SHA256

Algorithm

规范URI，请求资源路径，以\"/\"结尾，如/app/

Signature

用于签名的消息头声明，X-Sdk-Date是必选项，都要转成小写形式，且按按自然序排序，如host;x-sdk-date

先哈希再转成小写十六进制字符串Lowercase(HexEncode(Hash.SHA256(CanonicalRequest)))

Authorzation