AX4 XML - Canonicalize and signing

[Hugon]

Hi All

Are here developers from the UK?

How to create IRMark during sending xml file to HMRC?

I've generated an XML document and need to do the following:
- Canonicalize (14N) the XML Document
- Generate a 160-bit binary secure has from the canonicalized xml using SHA-1 algorithm
- Encode the binary data using base-64 to produce a 28 characters string
- Encode the binary data using base-32 to produce an easily humanreadable 32 characters string

IRMark generation step by step is here http://www.hmrc.gov.uk/ebu/irmark-te...ep_by_step.pdf

Thanks,

Hugon