NAME

       ykgenerate - construct and encrypt an OTP from given data

SYNOPSIS

       ykgenerate AESKEY YK_INTERNALNAME YK_COUNTER YK_LOW YK_HIGH YK_USE

DESCRIPTION

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

OPTIONS

       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).

EXAMPLES

       Typical usage of the tool is as follows.

           ykgenerate ecde18dbe76fbd0c33330f1c354871db 8792ebfe26cc 0013 c0a8 00 10

       Use ykparse(1) to decode the resulting OTP.

SEE ALSO

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