Questions tagged [pkcs7]

The tag has no usage guidance.

5 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
752 views

CMS signed data OpenSSL verification error

I have a CMS signed data that is successfully verified through Java BouncyCastle library. When trying to verify through OpenSSL, I am getting the following error: >openssl smime -verify -inform ...
1
vote
0answers
535 views

What is the difference between PKCS#7 and CADES, PADES and XADES?

I am newbie in PKI. For signing a pdf documents we are free to consider each pkcs#7 format or PADES format. If I have some misunderstandings, please turn it on for me.
1
vote
0answers
700 views

Verify PKCS#7 (CMS) detached signature with timestamp with OpenSSL

I have a PKCS#7 (i.e., CMS) detached signature of a file that is signed by my signing certificate and then timestamp signed by a TSA that is all generated by an application we wrote. I would like to ...
0
votes
0answers
45 views

Email signature with PKCS11?

While S/MIME has been a PKCS7 standard, what happens while I sign/encrypt an email using a smart card implementing PKCS11? Is PKCS7 supported as kind of backward compatibility?
0
votes
0answers
1k views

How to extract and verify PDF signature (PKCS7) with openssl?

I would like to detect signed PDFs in PHP and verify if the signature is valid. From this document I have written this PHP code below. What it does is: Extract the PKCS7 code (it works because I ...