Complete and free implementation of the OpenPGP standard
the Crypto Undertaker
Keybase Go library, client, service, OS X, iOS, Android, Electron
VanitySearch is a Bitcoin address prefix lookup tool.
Solving the Satoshi Puzzle
file/stream encryption/decryption/CRC based on PI compute algorithm
FIDO strong authentication, encryption, digital signature engine
FIDO-enabled, cloud file encryption with centralized key management.
Secure mail + Tor gateway
ImpraStorage provided a private imap access to store large files