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Draft med referensbeskrivning för ECC » Kryptoblog

Draft med referensbeskrivning för ECC

May 11th, 2010 by Joachim Strömbergson Leave a reply »

Det finns en intressant Internet Draft (I-D) av (David) McGrew från Cisco och Igoe från USAs National Security Agency.

David McGrew
David McGrew.

Draften Fundamental Elliptic Curve Cryptography Algorithms (draft-mcgrew-fundamental-ecc-02.txt) ger en referensbeskrivning av Elliptic Curve-krypto (ECC).

Varför är nu detta intressant? Jo – som författarna själva skriver:

The adoption of ECC has been slower than had been anticipated, perhaps due to the lack of freely available normative documents and uncertainty over intellectual property rights.
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This note contains a description of the fundamental algorithms of ECC over fields with characteristic greater than three, based directly on original references. Its intent is to provide the Internet community with a summary of the basic algorithms that predate any specialized or optimized algorithms, which can be used as a normative specification. The original descriptions and notations were followed as closely as possible.
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These descriptions may be useful for implementing the fundamental algorithms without using any of the specialized methods that were developed in following years. Only elliptic curves defined over fields of characteristic greater than three are in scope; these curves are those used in Suite B.
(Notera att jag flyttat om ordningen på styckena.)

Jag håller med om att det länge behövts en bra beskrivning av ECC. Men att det Just är patenträttigheter på ECC som hållit tillbaka utvecklingen verkar de flesta vara överens om. Som någon på Cryptography-listan konstaterade ger draften inte bara en normativ beskrivning av ECC, den sammanställer även en referens som är mer än 15 år gammal och föregår därmed de patent som idag finns på ECC.

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