"Spin-Vector ciphering" (SVC) methods

The speed and crypto-resistance characteristics of Cryprite products are based on the proprietary crypto-algorithms used, which are called "Spin-Vector ciphering" methods (SVC).

SVC is a group of symmetric crypto-methods with secret keys based on "unstable" ("spinning", or "twisting") enciphering vectorial equations using the general "Index-Twist" principle (patent-pending).

The crypto-resistance of SVC has been thoroughly checked both mathematically and statistically, via a special "Proving ground" analyzing software, using special Dimensional crypto-analysis (patent-pending), which tested the algorithms for an uninterrupted six month period.

The length of the ciphering gamma (keystream) period is 32 Mbytes in the small models (almost always enough for file encryption) and 2048 Gbytes (enough for any disk encryption) in the Long and Huge models of the SVC methods.

SVC is neither a block cipher nor a stream cipher; though it combines the strongest characteristics of both of these. We call it a Positional (stream-block) cipher. SVC can operate in one cycle with blocks of any size from 1 bit up to 512 bytes. Its natural and fastest mode is blocks of 512 bytes operated by sub-blocks ("words") of 4 bytes.

The working key length is 512 bytes (4096 bits) in the Small and Long models and 1024 bytes (8192 bits) in the Huge versions of SVC. The complexity of brute-force 512 bytes key matching (the resistance to cracking) is 10¹²³³ steps (i.e. operations necessary for key matching), which is many orders of magnitude higher than for other known algorithms (for example, DES' resistance is 10¹⁷, 3DES - 10⁵⁰).

The length of the passwords is arbitrary (from 0 bytes up to 512 bytes) in any SVC model, and can therefore be varied in line with prevailing security policies: if the password is shorter than the working key, the brute- force crypto- resistance of the system is determined by the length of the password. This principle is realized in Dcr and Fcr, where the SuperUser can restrict the maximum password length.

The speed of the SVC algorithms is in range 8-25 Mbytes/sec on a P/155MHz, or 22-65 Mbytes/sec on a P2-MMX/266MHz, etc. Depending on the method, model, processor used, SVC is between 3 and 10 times faster than the leading AES candidates (and 4-18 times faster than DES, or 12-50 times faster than 3DES). The default SVC model used in Fcr has a speed of about 12 "DESs" (measured in DES speeds).