Digital Signature with Encryption Based on Combined Symmetric Key
Ying Li · Dianzi Ke-ji Daxue xuebao · 2009
A combined symmetric key scheme is presented to transmit secret data and implement digital signature in intranet. This method stores key seed matrix, symmetric key algorithm and combined symmetric key algorithm in hardware equipment. Compared with traditional symmetric cryptography, the key is one-time pad and the key updateing and maintenance is automatic, so the key is maintenance free. This method has the features of fast deciphering and simple key management.