ECBackup is a archiver with strong-security, based on open key technology. It's very like to PGP, but uses more reliable and efficient methods of compression and encoding, and works from the command line. As against PGP, ECBackup using elliptic curves for open key and AES with block size 128 bits and key size 256 bits for cipher. This has allow to get the greater security in contrast with RSA-based (PGP) systems under the smaller length of key and more high speed. Key length up to 1900 bits (on stability is equivalent to more than 50,000 bits RSA-key) - it's a "paranoic" level of security ! ECBackup can be used for creation of backup copies of the confidential information instead of accident-sensitive pkzip, arj etc. ECBackup has a good degree of compression of your information - on the average in 1,5-2 times better than widely widespread archivers. The applied technology of open keys allows safely to store a public key on the disk and guarantees impossibility of restoring of your private key from public. The special program ECExchange, included in the package ECBackup, allows easily and reliably to interchange files and correspondence in open and unguarded networks (LAN, Internet).