Base64 encode a SHA256 string

[jondecker76 Participant]

I’m working on a module to interface the Amazon MWS API.  Part of the signing is to first sign with SHA256, and then encode that signature in base64.  I can’t seem to quite get it:

 

Monkey

Local signature:=SHA256(stringToSign)</p> <p>Local db:=New DataBuffer(signature.CStringLength) 'string length in Bytes! signature.ToCString( db.Data,db.Length )</p> <p>Local signature64:=EncodeBase64(db) Print signature64

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Local signature:=SHA256(stringToSign)   Local db:=New DataBuffer(signature.CStringLength) 'string length in Bytes! signature.ToCString( db.Data,db.Length ) Local signature64:=EncodeBase64(db) Print signature64

The problem is that the base64 encoded signature doesn’t look anything like it should, and fails verification.  Any ideas what I’m doing wrong?

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