Hey I just made an offline wallet chain code questions.

[risho]

So, I just made an offline wallet. I had one before that I made but I never actually wound up using it, so I just tossed the old one and made a new one. One thing I've noticed is that the old one had a chain code on the printout and the new one just has the private key. Do I not need the chain code anymore? I saw in another post that the chain code now is just a hash of the private key, so all I need is the private key and the deterministic wallets will still generate correctly in the event of a failure?

If this is true could the fact that the chain codes are just hashes of the private keys rather than randomly generated create collision issues in the future?

[goatpig]

Well you're still looking at a 256bit integer collision, that's the same as hoping for a private key collision.

[risho]

so all i need is the private key and not the chain code?

[goatpig]

As long as your paper backup only carries a root key, that all you need