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Re: ECC curve ID

2008-02-27 12:29:37

At 09:51 AM 2/27/2008, Werner Koch wrote:
    1.2.840.10045.3.1.7  NIST P-256   (Not sure about this OID)

Werner: We think that this is correct -- at least it's what we've been using
for quite some time and have received no complaints to date (and have witnessed
no conflicts between our code and everything we've been able to access for
compatibility testing).

Microsoft agrees (and our P-256 ECC certs are accepted by Vista IE):
  "XCN_OID_ECC_CURVE_P256 (1.2.840.10045.3.1.7) "

Also, if you need an official NIST reference, SP 800-78-1 lists this OID on
page 9 (table 3-6):

In hex, it's "0x2A8648CE3D030107."


Michael J. Markowitz, Ph.D.        Email: markowitz(_at_)infoseccorp(_dot_)com
Vice President R&D                 Voice: 708-445-1704 (Oak Park)
Information Security Corporation          847-405-0500 (Deerfield)
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