Information Security
MISTY Mystery Tour
Research & Development
Symmetric-key Encryption
 
Symmetric-key encryption is an algorithm using a single key and its merit is high-speed processing. Mitsubishi Electric has introduced three symmetric-key encryption algorithms: MISTY, KASUMI and Camellia.



Background of symmetric-key encryption technology development
Jan. 1994 Invention of linear cryptanalysis
Aug. 1994 Announcement of world’s first experimental DES cryptanalysis
Sep. 1995 Introduction of encryption algorithm MISTY
Nov. 1995 Registration of MISTY 1 for ISO9979 certification
Aug. 1998 Royalty-free licensing of the MISTY 1 basic patent
Jan. 2000 Adoption of KASUMI as the standard algorithm for W-CDMA
Mar. 2000 Introduction of encryption algorithm Camellia (NTT, Mitsubishi Electric)
May 2001 Introduction of IP technology license for MISTY and KASUMI
Jul. 2002 Adoption of KASUMI as GSM standard encryption
Feb. 2003 Approval of MISTY 1 and Camellia as Japan’s e-government procurement encryption
Feb. 2002 Approval by NESSIE of MISTY 1 and Camellia



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MISTY
KASUMI
Camellia