Welcome to Alibaba Cloud and find out more detail about hmac

SignatureMethod=HMAC-SHA1 SignatureNonce=15215528852396 SignatureVersion=1.0 AccessKeyId=key-test Timestamp=2012-06-01T12:00 ...

, you must use your AccessKey Secret to calculate the HMAC value based on the encoded and sorted request ...

%3DSignatureMethod=HMAC-SHA1SignatureNonce=15215528852396SignatureVersion=1.0AccessKeyId=key-testTimestamp=2012-06-01T12:00:00Z ...

Version=2014-05-15 Signature=xxxx%xxxx%3D SignatureMethod=HMAC-SHA1 SignatureNonce=15215528852396 SignatureVersion=1.0 ...

’s HMAC value based on RFC2104 definitions. Note: The Key used for signature calculation is the Access Key Secret held by the ...

://cbn.aliyuncs.com/?Action=CreateCen Format=xml Version=2017-09-12 Signature=xxxx%xxxx%3D SignatureMethod=HMAC-SHA1 ...

SignatureMethod=HMAC-SHA1 SignatureNonce=15215528852396 SignatureVersion=1.0 AccessKeyId=key-test TimeStamp=2012-06-01T12:00:00Z ...

=ddospro-cn-XXXX1 Format=xml Version=2017-07-25 Signature=xxxx%xxxx%3D SignatureMethod=HMAC-SHA1 SignatureNonce=15215528852396 ...

=DescribePhysicalConnections Format=xml Version=2016-04-28 Signature=xxxx%xxxx%3D SignatureMethod=HMAC-SHA1 SignatureNonce=15215528852396 ...

signature’s HMAC value based on RFC2104 definitions ...