how can I check my rsa passphrase?

I think I've forgotten my RSA passphrase again.

Is there a way to have my local command line prompt me for it so I can check if I at least what I remember it as is correct, so I don't needlessly change it?

Next time I'm writing it on a post-it ;)

2

2 Answers

Use:

ssh-keygen -y
-y This option will read a private OpenSSH format file and print an OpenSSH public key to stdout.

Example:

$ ssh-keygen -y -f ~/.ssh/id_rsa_file

This will prompt to enter the passphrase. Given a wrong passphrase it will say "load failed" otherwise it will print the OpenSSH public key to stdout.

Try ssh-keygen -p:

-p Requests changing the passphrase of a private key file instead of creating a new private key. The program will prompt for the file containing the private key, for the old passphrase, and twice for the new passphrase.

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