Bitcoin-ruby. A Bitcoin utilities library in Ruby by Julian Langschaedel. Utility based on bitcoinjs to craft transactions by hand, convert private keys to addresses and work with a brain wallet. The name “Casascius” is formed from a phrase “call a spade a spade”, as a response to a name of Bitcoin itself.
18 Jul 2013 Import private keys using SIPA and mini private key format (Casascius private keys) from QR-codes or clipboard - Export private keys as QR-codes, on clipboard, and directly to external SD card. - Share your bitcoin address using Twitter, Facebook, email and more. - Integrated QR-code scanner - Client
18 Feb 2012 This conversion can be done with a utility such as Casascius Bitcoin Utility or Electrum. Bitcoins are sent to the address. In order to recover the Bitcoins, one must recompute the private key with the same phrase. The private key is imported into a wallet. Example brainwallet. First, a phrase is chosen.