Hello everyone,

    I am working on a project about how to use openssl libs to implement a 
PAdES(whitch is based on CAdES) signature because I saw that the master branch 
of openssl has supported CAdES-BES signature. But now there is a problem I 
don't know how to solve it. So I am asking for some help.
    According to the PAdES reference, signing-time attribute in CMS signature 
shall not be present in a PAdES signature. In openssl libs, signing-time 
attribute is set in the function CMS_SignerInfo_sign. But I can't find a way to 
control it not to set  signing-time attribute. So I want to know if there is a 
way to not to set signing-time attribute or delete this attribute without 
changing the openssl source code.

Regards,
Shiyao Liu 



shiyao_...@foxitsoftware.cn

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