Electronic signature method and apparatus
Electronic ticket presentation and transfer method
Electronic ticket vending system and method thereof
Electronic-monetary system
Electronic-monetary system
Electronic-monetary system
Electronic-monetary system
Electronic-monetary system
Encipher method and decipher method
Enciphering key distribution system for subscription TV broadcas
Enciphering/deciphering device and method, and encryption/decryp
Encoder and decoder
Encoder apparatus and decoder apparatus for a television signal
Encrypted broadcast television system
Encrypted trunked control channel system
Encrypting transponder
Encryption and authentication method and circuit for synchronous
Encryption and decryption method and apparatus
Encryption and decryption of chained messages
Encryption apparatus using data encryption standard algorithm