protection algorithm 254 is not supported

[Toxik - Fabian Rodriguez]

Hello,

I have  a key ring consisting of:
- Public key exported from gpg 1.0.7
- Public/private keypair exported from gpg 1.0.7

I have imported these two in a gpg 1.0.6 environment, and when I try to sign
the first public key with the only private key in the keyring, I get this:

gpg: protection algorithm 254 is not supported
gpg: signing failed: unknown cipher algorithm

What does this mean ?

Fabián Rodríguez - Toxik Technologies, Inc.
www.toxik.com ˇ (514) 528-6945 @221
OpenPGP: 0x5AF2A4D5