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Tarik Billa

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x509

X509: What’s the difference between digital signature and non-repudiation

August 21, 2023 by Tarik

I realise this question is a bit old, but I think I can shed some much-needed light on the question. The non-repudiation value in the keyUsage attribute relates to the whole certificate, not any purpose in particular. The presence of the non-repudiation flag indicates that the private key has sufficient protections in place that the … Read more

Categories x509 Tags x509 Leave a comment

How to convert .crt to .pem [duplicate]

September 30, 2022 by Tarik

You can do this conversion with the OpenSSL library. Windows binaries can be found here. Once you have the library installed, the command you need to issue is: openssl x509 -in mycert.crt -out mycert.pem -outform PEM

Categories x509 Tags asn.1, crt, der, pem, x509 Leave a comment

Tarik Billa

Software Engineer
tarikbilla@gmail.com
+8801884414000
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