AT90SC6404RT datasheet(55/65 Pages) ATMEL

55 / 65 page

TOE Summary Specification

TPG0053A (24 Nov 04)

General Business Use

55 of 64

6.1.10

Cryptography (SF10)

159

The TSF shall provide:

A cryptographic algorithm to be able to transmit and receive objects in a manner

protected from data retrieval or modification.

Hardware DES, TDES data encryption/decryption capability.

160

Those may be used by the smartcard embedded software to support data encryption

and decryption for maintaining data integrity, and protect against sensitive data

unauthorized disclosure.

161

The TSF shall provide a Random Number Generator (RNG) to support security

operations performed by cryptographic applications. This RNG shall not be predictable,

have sufficient entropy, and not leaking information related to the value of the

generated random numbers as this leakage could be used to retrieve cryptographic

keys for instance.

162

The Strength of Function claimed for the cryptography security function is high.

163

An assessment of the strength of the following algorithms does not form part of the

evaluation:

DES algorithm

TDES algorithm

6.1.11

Security Functions Based on Permutations/combinations

164

The description of security functions using permutation and/or combination properties

is not disclosed in this document.

165

Further details on these mechanisms and on the Strength of Function Analysis

performed by ATMEL can be found in [SOF].

AT90SC6404RT Datasheet(PDF) 55 Page - ATMEL Corporation