wp8_receipt_verify

wp8_receipt_verify

Windonws phone 8 in-app-purchase receipt verification with Golang

There are 2 problems to verify winodws phone 8 receipt with Golang:

• The serial number of IapReceiptProduction.cer is negative, which will lead to certificate parsing failure with Golang x509 package
• XML Digital Signature is used for receipt verification, which is really complicated, while Golang DO NOT have the related libraries to handle this

For the 1st problem, there are 2 solutions:

• wrap the x509 package to ignore the "negative serial number" error
• extract public key from the certification using openssl or key chain

For the 2nd problem

• I have searched many golang and xml digital signature related repos in github and finally find amdonov/xmlsig, which helps a lot.

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