Title: Private key compression Post by: cryptolaxy on September 17, 2014, 01:37:13 PM Wanted to know if it's possible to convert a compressed private key to an uncompressed private key.
Thanks! Title: Re: Private key compression Post by: DannyHamilton on September 17, 2014, 01:54:37 PM Wanted to know if it's possible to convert a compressed private key to an uncompressed private key. Thanks! Possible? Yes. But why would you want to? Title: Re: Private key compression Post by: cryptolaxy on September 17, 2014, 01:58:00 PM Wanted to know if it's possible to convert a compressed private key to an uncompressed private key. Thanks! Possible? Yes. But why would you want to? Title: Re: Private key compression Post by: DannyHamilton on September 17, 2014, 02:18:23 PM Wanted to know if it's possible to convert a compressed private key to an uncompressed private key. Possible? Yes.Thanks! But why would you want to? The private key isn't actually compressed. It's the public key that is compressed (which results in a completely different bitcoin address). The private key has a byte added to it to indicate that it was used to generate a compressed public key. If you convert it to the uncompressed format, then any wallet that you import it into will generate the wrong address (it will generate the address from the uncompressed public key), and will therefore not see or access the bitcoins that you sent to the address that was generated from the compressed public key. The only thinkg I can think of that would make a private key "invalid" would be if the checksum was calculated incorrectly. Otherwise, you should end up with a completely valid and importable private key no matter what the private key is. If it was my paper wallet, I'd start by demanding support from Coinbase. If they were slow to respond, then while I was waiting I'd:
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