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Issue importing client TLS certificate

fadam | Last updated: Jul 01, 2024 02:00PM UTC

Hello I am having issue importing a .p12 in the "Client TLS certificates". Error is "Failed to load certificate: Tag number over 30 is not supported" Passphrase is composed of 44 alphanumerical characters. I am using the latest version of Burp as of 01/07/2024 : v2024.5.4

Michelle, PortSwigger Agent | Last updated: Jul 02, 2024 10:45AM UTC

Hi Thanks for getting in touch. One possible cause of this error could be an issue with the passphrase. You could try converting the certificate to X509 so that you can look at the certificate in more detail and also confirm that the passphrase you have been given is correct. If you need help with this, do you have a p12 certificate/passphrase that displays this behavior that you would be happy to share with us? If so can you please send an email to support@portswigger.net?

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