-Caveat Lector- from: http://csrc.nist.gov/encryption/aes/ Click Here: <A HREF="http://csrc.nist.gov/encryption/aes/">Advanced Encryption Standard (AES) Development …</A> ----- Advanced Encryption Standard (AES) Development Effort GENERAL AES Home Page Modes of Operation Workshop Recent News ROUND 2 (8/1999-5/2000) AES Finalists: NIST's Round 1 Report Finalist Algorithm Information Round 2 Analysis Round 2 Comments Discussion Forum 3rd AES Conference ROUND 1 (8/1998-4/1999) R1 Algorithms R1 Announcement R1 Comments 2nd AES Conference 1st AES Conference Pre-ROUND 1 (1/1997-7/1998) Call for Candidates AES Beginnings *** RIJNDAEL *** Selected by NIST for the Proposed AES October 2, 2000 [Note: Apparently, one of our NIST servers was down for a while today, making the webcast inaccessible. It also has led to a delay in these AES pages being updated. We will try to make the "archived" webcast available as soon as possible.] * Press Release * AES Fact Sheet (please review before contacting NIST with questions!) * NIST's Report on the Development of the Advanced Encryption Standard (AES), which summarizes NIST's selection and the public comments, is now available. * Rijndael information (specifications, code, test values, etc.) Recent Announcements October 2, 2000 - NIST announces that Rijndael has been selected as the proposed AES. September 29, 2000 - Information on the October 20, 2000 Modes of Operation Workshop is still available, and comments are invited. August 7, 2000 - VHDL models developed by NSA to evaluate the hardware performance of the five finalists is available. Additional AES "News" from Round 2. ------------------------------------------------------------------------ ------------------------------------------------------------------------ SPECIAL NOTE - Intellectual Property NIST reminds all interested parties that the adoption of AES is being conducted as an open standards-setting activity. Specifically, NIST has requested that all interested parties identify to NIST any patents or inventions that may be required for the use of AES. NIST hereby gives public notice that it may seek redress under the antitrust laws of the United States against any party in the future who might seek to exercise patent rights against any user of AES that have not been disclosed to NIST in response to this request for information. ------------------------------------------------------------------------ Overview of the AES Development Effort August, 1999 The National Institute of Standards and Technology (NIST) has been working with industry and the cryptographic community to develop an Advanced Encryption Standard (AES). The overall goal is to develop a Federal Information Processing Standard (FIPS) that specifies an encryption algorithm(s) capable of protecting sensitive government information well into the next century. The algorithm(s) is expected to be used by the U.S. Government and, on a voluntary basis, by the private sector. On January 2, 1997, NIST announced the initiation of the AES development effort and made a formal call for algorithms on September 12, 1997. The call stipulated that the AES would specify an unclassified, publicly disclosed encryption algorithm(s), available royalty-free, worldwide. In addition, the algorithm(s) must implement symmetric key cryptography as a block cipher and (at a minimum) support block sizes of 128-bits and key sizes of 128-, 192-, and 256-bits. On August 20, 1998, NIST announced a group of fifteen AES candidate algorithms at the First AES Candidate Conference (AES1). These algorithms had been submitted by members of the cryptographic community from around the world. At that conference and in a simultaneously published Federal Register notice, NIST solicited public comments on the candidates. A Second AES Candidate Conference (AES2) was held in March 1999 to discuss the results of the analysis conducted by the global cryptographic community on the candidate algorithms. The public comment period on the initial review of the algorithms closed on April 15, 1999. Using the analyses and comments received, NIST selected five algorithms from the fifteen. The AES finalist candidate algorithms are MARS, RC6, Rijndael, Serpent, and Twofish. NIST has developed a Round 1 Report describing the selection of the finalists. These finalist algorithms received further analysis during a second, more in-depth review period prior to the selection of the final algorithm(s) for the AES FIPS. Until May 15, 2000, NIST solicited public comments on the remaining algorithms. Comments and analysis were actively sought by NIST on any aspect of the candidate algorithms, including, - but not limited to, - the following topics: cryptanalysis, intellectual property, crosscutting analyses of all of the AES finalists, overall recommendations and implementation issues. An informal AES discussion forum is also provided by NIST for interested parties to discuss the AES finalists and relevant AES issues. Near the end of Round 2, NIST sponsored the Third AES Candidate Conference (AES3) - an open, public forum for discussion of the analyses of the AES finalists. AES3 was held April 13-14, 2000 in New York, NY, USA. Submitters of the AES finalists were invited to attend and engage in discussions regarding comments on their algorithms. NIST is providing a final agenda which includes links to the papers that were accepted for AES3, their presentations (if available), the submitter statements, and the submitter presentations. All papers proposed for this conference are considered as official Round 2 public comments. Since the close of the Round 2 public analysis period on May 15, 2000, NIST has been studying all available information in order to make a selection for the AES. Currently, NIST anticipates that it will announce the AES selection by late summer or early fall of 2000. No firm date has been set for this announcement, which will be made using a press release and information on this AES home page, at a minimum. Concurrent with the announcement, NIST will publish a "Round 2 Report" that will summarize information from Round 2 and explain NIST's selection. Shortly after the announcement, a draft Federal Information Processing Standard (FIPS) for the AES will be published for public review and comment. Following the comment period (of at least three months), the standard will be revised by NIST, as appropriate, in response to those comments. A review, approval, and promulgation process will then follow. If all steps of the AES development process proceed as planned, it is anticipated that the standard will be completed by the summer of 2001. At the time that NIST publishes the AES standard, it is intended that validation testing (i.e., conformance testing) for AES implementations will be available through NIST's Cryptographic Module Validation Program. ------------------------------------------------------------------------ Last Modified: October 2, 2000 Questions? Press Contacts Computer Security Division National Institute of Standards and Technology NIST is an agency of the U.S. Commerce Department's Technology Administration NIST Disclaimer and Privacy Notice ----- Aloha, He'Ping, Om, Shalom, Salaam. Em Hotep, Peace Be, All My Relations. Omnia Bona Bonis, Adieu, Adios, Aloha. Amen. 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