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EncryptionAuthenticationIdentification

G R E TA G

GRETACODER® 517Data Encryption up to 64 kb/sThis flexible data encryption unit is inserted between themodem and the host or terminal on the receive and transmitside. In addition to a fully protocol transparent mode, it alsosupports various bit- and byte oriented protocols where headerinformation is left clear. It can further be used with X.25 packetswitching networks.

Technical Data:Period of cipher program:Recursion length:Data rates:Operating modes:

Interface:Key storage:

10" Bit4.5 x 10'° Bitup to 64 kbit/sFull-duplex/half-duplex,point-to-point or multipointCCITT V24/EIA RS-232-C, V35User programmable keyplug-in module

Applications:Data networks where highest security as well as applicationsflexibility with respect to protocols and interfaces or high speedoperation is required.

GRETACODER0 518/Data EncryptionThis compact low cost encryption system is ideal for protectionof digital data against computer frauds and wire tapping on theline between transmitting and receiving stations.

Technical Data:Period of cipher program: 1086 BitRecu rs i on l eng th : 10 " B i t

Data rates: up to 20 kbit/s synchronousOperating modes: Full-duplex/half-duplex,

point-to-point or multipointInterface: CCITT V24/EIA RS-232-CProtocol: Fully transparent to all

communication protocolsKey storage: User programmable key

plug-in module

Applications:In data networks of banks, insurance companies, oil companies, industries, administrations, hospitals etc. where datasecurity and confidentiality is required.

GRETACODER0 519/Facsimile EncryptionThis cipher unit protects Group 3 facsimile machines againstunauthorized access of their transmissions. Closed and openuser groups are supported.

Technical Data:Period of cipher program:Recursion length:Data rates:Interface:

Key storage:

1086 Bit10" Bitup to 9.6 kbit/sCCITT V24/EIA RS-232-Cand different special interfaces formost Group 3 facsimile units.User programmable keyplug-in module

Applications:Important tool in modern office communication to protect confidential facsimile transmission.

GRETACODER 517

GRETACODER® 524Data Encryption up to 64 kb/sThe GRETACODER 524 represents a new generation of encryption equipment that satisfies the most stringent securityrequirements. In addition, easy installation and configuration aswell as low administration overhead on part of the user were ofprimary concern.

Technical Data:Data rates:Interface:

up to 20 kbit/sCCITT V24/EIA RS-232-C.Different protocols such as SNA*and BSC*.

Technical Data:Cryptological data:

Data rates:Operating modes:

Interface:

Key management:

DES (56 bit key) orGRETAG block cipher (128 bit key),self-synchronization (1-bit-cipher-feedback mode)up to 64 kbit/sFull-duplex/half-duplexpoint-to-point or multipointCCITT V.24/EIA RS-232-C,RS-422 (V.11), V35, X.21Key storage in user programmable security module, public keyexchange

Applications:Banks and Clearing houses.* Trademark by IBM

GRETACODER 603Data Encryption up to 2.048 Mbit/sThe GRETACODER 603 bulk encryption unit is used to protecthigh speed links up to 2.048 Mbit/s.

Applications:Data networks with highest security requirements and minimalongoing costs for security administration. The manpower, timeand travel expenses can be cut drastically by using the publickey system.

GRETACODER® 715/AuthenticationThe GRETACODER 715 is used in electronic fund transfersystems, mainly in the banking world. It provides all requiredidentification, authentication, and message delivery proofs forboth the sender and the receiver.

Technical Data:Period of cipher program:Recursion length:Data rates:Operating modes:

Interface:

Key input:

Key storage:

102'2 Bit10'8 Bitup to 2.048 Mbit/sFull-duplex point-to-pointoperationCCITT G703/G 704RS 422AZ1164 decimal numbers from keyboardBattery buffered RAM

Applications:Encryption of high speed time division multiplexers, digital telephone exchange systems or video conferencing applications.

G R E TA G

Microcomputer Data SecurityEncryptor 300 and 324The Encryptor boards provide solutions that address the microcomputer security requirements of data storage and communication. The Encryptor boards are substantially faster thansoftware based systems. The Encryptor 300 is a low-cost encryption device. The Encryptor 324 provides top secrecy. Itincorporates a battery-backed storage module that automatically destroys the keys in case of tampering.

Technical Data:Cryptological data:Speed:

Compatibility:Operating modes:

Key storage:

DES (56 bit key)The Encryptor permits to encrypt ordecrypt 8 bytes in only 28 microseconds.With IBM PC AT and XT series.Private File Security softwareprovides data protection for selectedfiles.AutoCrypt I software provides usertransparent disk security.On-board key storage

Applications:Solutions for security needs have become increasingly important with the use of hard disks. Unlike floppies, they cannot beremoved and locked into a safe, and the cheap locks that existon some microcomputers are totally insufficient for data protection.

G R E TA GAKTIENGESELLSCHAFT

Althardstrasse 70, CH-8105 Regensdorf/Zurich, Switzerland, Phone (01) 8421111, Telex 825818, Telefax (01) 8422100GRETAG 98.16.37 SP 8906 en Printed in Switzerland