Software for facilitating the blind signature of documents, namely, software allowing the obtaining of a signature on a document without the signer seeing the actual content of such document; software for facilitating anonymous crypto currency transactions; software for facilitating secure crypto currency transactions; software for processing crypto currency transactions; software allowing for the creation of digital signatures for crypto currency transactions; cryptography signing device, cryptography capable smart card, application authorizing smart card; software login smart card; digital information storing smart card; electronic machines for processing and recording crypto currency transactions; crypto currency storing devices; digital key storing devices; digital key signing devices; digital key generating device; cryptographic secret generating device; near field communication (NFC) readers, writers, encoders, receivers and transmitters; phone unlocking device; computer unlocking device; computer security device; software signature device; smart digital signature device; JavaCard device; QR display device; downloadable cryptographic keys for receiving and spending crypto assets; encoded bank cards; encoded integrated circuit cards; encoded key cards, namely, encoded identity cards, identification cards with embedded chips, identification smart cards; encoded payment cards; encoded prepaid payment cards; identification cards with embedded chips; identification smart cards; security software; security tokens