[pagekalisedown]

Just by looking at the PEM's number of lines you can tell it's a 1024 bit key.

[wladimir]

That's the private key itself. I was somewhat unclear in my wording. We (I and the grandparent poster) were wondering if the private key was encrypted with a passphrase.

[pagekalisedown]

Good point. The strength of the private key isn't relevant. Only the encryption used to protect the key.