Technical specifications

Feautures

Used cyphers

• AES (Rijndael): an official advanced encryption standard proposed by Joan Daemen a Vincent Rijmen, it is a winner of the contest for a new AES encryption standard. Members of a final committee gave most votes to this cipher. The National Security Agency (NSA) classified this cipher with key lengths of 192 and 256 bits for the application on materials with the level of secrecy TOP SECRET. The key length for the Rijndael-AES cipher in Safetica®s is 256 bits.

• Blowfish - One of the most secure ciphers proposed by a specialist in cryptology Bruce Schneider. Although it has been designed already in 1993, it is still one of the best and most often used ciphers. Blowfish is used as a standard cipher in the OpenBSD operating system that is still considered by specialists as one of the most secure operating systems in the world. We offer this cipher with a key length of 448bits.

• CAST5 -  Created in 1996 and used by the Canadian government and its spy services Communications Security Establishment for a long time. Authors are Carlisle Adams a Stafford Tavares. It enables encryption by a 40-128 bits long key. Safetica® supports a key length of 128 bits.

• CAST6 derived from CAST5, created by the same authors in 1998 and often used until now. This cipher has also been proposed as an AES standard. Its main advantage over CAST5 is a longer key - 256 bits for a double size of an encrypted block compared to the predecessor.

• MARS - Another cipher from the AES top-five, designed in cooperation with the IBM corporation. Its author, Don Coppersmith, worked as a co-author on the creation of the DES encryption standard in 1975. MARS has a quality design that works with a 448 bits long key and is intended for inhospitable environments.

• RC5 - RC is an abbreviation for Rivest Cipher according to the name of its author Ronald Rivest. This cipher was designed in 1994, it is fast and has a variable key lengths. We have implemented RC5 with a key length of 512 bits. It is recommended to use this cipher on disks where big amount of data are often processed.

• RC6 - a successor of RC5, that was also a runner-up in the AES final group. Overtakes a quality design, which is manifested not only in the security, but also in the speed of an algorithm. Complements the RC5 cipher with an increased security and a key length of 512 bits. Because of its speed we recommend you to use this cipher in case a big amount of data is often saved.

• Serpent - considered by cryptologists as one of the most secure block ciphers. Its excellent security parameters classify it among the leading ciphers in a secure storage of confidential materials. In case of using the new 64-bits computer architecture its implementation in Safetica® is not only very secure but also very efficient. The key length is 256 bits.

• Twofish - Another high quality encryption method. As a Blowfish-successor it fully meets the requirements on a high security and speed of encryption. It is also an AES runner-up and has very good security results. The implemented Twofish cipher is 256 bits.