dacdam Posted December 13, 2014 Share Posted December 13, 2014 Hello everyone,I'm trying to extrapolate the original file from a digitally signed.I know that I have to use the function openssl_pkcs7_verify, but I can't manage to make it works, and I have already made several researches on the reason.What I discovered is that the problem is because the digital signature that I'm trying to manage is in DER format, while PHP handles only PEM signatures.Does anybody know if there is a way to convert a DER signature in a PEM signature? Keep in mind that the signature is attached to the file, then the encoding base64 I think is not possible as it would codify also the content of the file, making it unusable.Alternatively, someone knows if there is a way to manage signatures DER in PHP?Thanks for your help! Quote Link to comment Share on other sites More sharing options...
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