PreshBlog

Check/change key passphrase with openssl

by on Dec.14, 2010, under Linux, System Administration

Quick post for my future reference, and for anyone Googling.

To check the passphrase for a key is correct:

openssl rsa -check -in keyfilename

To change the passphrase for a key:

openssl rsa -des3 -in keyfilename -out newkeyfilename

Simples.


1 Comment for this entry

  • Horst Schlämmer
    September 22nd, 2011 on 1:43 pm

    openssl rsa -des3 -in keyfilename -out newkeyfilename

    doesn’t work on OSX. Tunnelblick is logging -> Bad encrypten…

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