One Time Password (OTP) Parameters

Last Updated
2009-05-21
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Registries included below

Algorithm Identifier

Registration Procedure(s)
IESG Approval
Reference
[RFC2289]
Note
The syntax of the challenge is:
      otp-<algorithm identifier> <sequence integer> <seed>
Available Formats

CSV
Algorithm Identifier Description Reference
md4 MD4 Message Digest [RFC2289]
md5 MD5 Message Digest [RFC2289]
sha1 NIST Secure Hash Algorithm Revision 1 [RFC2289]

Extension set identifiers

Registration Procedure(s)
IESG approval
Reference
[RFC2243]
Available Formats

CSV
Extension Set Id Description Reference
hex hexadecimal number [RFC2243]
init-hex re-initialize using hexadecimal [RFC2243]
init-word re-initialize using six words [RFC2243]
word six dictionary words [RFC2243]