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- January 26, 2012
- 2012 News Release. Sony's ‘CLEFIA’ Encryption Technology Adopted as an International Standard.
- June 15, 2011
- Compact hardware implementation results are updated.
- March 23, 2011
- CLEFIA website is renovated. Contents are enriched, and the layout of the webpage is re-designed.
- March 16, 2011
- The specification of CLEFIA is published as RFC 6114 by the IETF.
- March 2, 2011
- The first evaluation result of CLEFIA is reported in the CRYPTREC symposium 2011.
- January 25, 2011
- Sony presents two technical reports on CLEFIA at the 2011 symposium on cryptography and information security (SCIS 2011).
"Update of the Security Evaluation of CLEFIA against Differential Attack and Linear Attack"
"Compact Hardware Implementation of the 128-bit Blockcipher CLEFIA"
- February 4, 2010
- CLEFIA is applied for the security evaluation project CRYPTREC for the recommendation of cryptographic techniques for Japanese government.
- October 19, 2009
- CLEFIA is proposed as a internet-draft for the standardization.
- July 20, 2007
- Sony presents a technical reports on CLEFIA at ISEC.
Title "Hardware Implementations of the 128-bit Blockcipher CLEFIA"
- June 11, 2007
- CLEFIA Web site is opened.
- May 18, 2007
- Sony presents a technical reports on CLEFIA at ISEC.
Title "The 128-bit Blockcipher CLEFIA"
- March 26, 2007
- Sony presents a CLEFIA at Fast Software Encryption 2007.
Title "The 128-bit Blockcipher CLEFIA"
- March 22, 2007
- News Release. Sony Develops "CLEFIA" - New Block Cipher Algorithm Based on State-of-the-art Design Technologies.

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