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CAdES. Storing validation data.



Hello all and personally Nick,

 

I want to draw your attention to the following problem.

 

There is only limited possible transformation between CAdES-X Type 1 signature and CAdES-X Long Type 1 signature. Notably, one must store certificate and revocation values for signature-timestamp validation in the timestamp itself, hence, after receiving CAdES-C-timestamp one cannot add or remove these values from signature-timestamp.

 

An obvious solution is to allow to include timestamp validation data in certificate-values and revocation-values attributes of the signature itself. What do you think?

 

Pavel Smirnov

Crypto-Pro
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