ykgenerate - Man Page

ykgenerate AESKEY YK_INTERNALNAME YK_COUNTER YK_LOW YK_HIGH YK_USE

Generate OTPs by encrypting given values under the given encryption key.

AESKEY

The 16-character AES-128 key to use in hex.

YK_INTERNALNAME

Hex encoded internal identity (48 bit).

YK_COUNTER

Hex encoded counter (16 bit).

YK_LOW

Hex encoded timestamp low (16 bit).

YK_HIGH

Hex encoded timestamp high (8bit).

YK_USE

Hex encoded use (8 bit).

Typical usage of the tool is as follows.

ykgenerate ecde18dbe76fbd0c33330f1c354871db 8792ebfe26cc 0013 c0a8 00 10

Use ykparse(1) to decode the resulting OTP.

YubiKeys can be obtained from Yubico: http://www.yubico.com/