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Type: Posts; User: laz42

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  1. Replies
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    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    OK. Have resolved it now.

    I don't understand why, but on Windows XP vba the encode method is returning the 2 extra characters CRLF at the end of the string. This is not the case for the exact...
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    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    To verify things I stuck your vb RFC 4231 test routines into vba and ran on both XP with Access 2007 and on windows server 2008 64 bit with the access runtime environment. The results were identical...
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    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    Thanks, I will do that.

    Before I start doing this please could you verify that the following routine (which I use to call your class) is calling it in the right way. In particular the last line....
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    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    I'm having a (reasonably obscure?) problem with this class. I have it integrated into Access to support integration into Amazon MWS and it is providing the signatures correctly on my development...
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    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    I worked it out myself.

    It should read:
    hs256.InitHmac bytekey

    If anyone does have a working MWS integration example Access it would still be very much appreciated!

    Phill
  6. Replies
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    159,846

    Re: [VB6] HMAC-SHA-256, HMAC-SHA-1 Using Crypto API

    I am trying to integrate your HS256 class into Access vba for integration into Amazon MWS and coming up with some problems.

    I have successfully created a class HS256 using the HS256.cls in v2.1...
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