A device and a method for performing a crytographic function

Apparatus and method for controlling a communications terminal

Apparatus and method for cryptographic system users to...

Arrangement for transforming plaintext into ciphertext for...

Authentication of items using transient optical state change...

Authenticity mark, document carrying such mark, and process...

Block cipher apparatus using auxiliary transformation

Block-cipher cryptographic device based upon a pseudorandom...

Check digit verification/generation appratus

Cipher processing apparatus, ic card and cipher processing...

Collision-resistant elliptic curve hash functions

Constructing symmetric ciphers using the cast design procedure

Cryptographic device

Cryptographic device

Cryptographic file security for multiple domain networks

Cryptographic system configured for extending a repetition...

Cryptographic verification of operational keys used in...

Cryptographically coded cards employing synthetic light...

Data authentication system

Data conversion apparatus and data conversion method