modhex - convert data to/from modhex encoding

       Encode/decode modhex data DATA to binary and hex.

       ModHex encode ASCII-string "test":

           modhex test

       Decode ModHex data "ifhgieif" into ASCII string:

           modhex -d ifhgieif

       ModHex encode hex-encoded data "b565716f":

           modhex -h b565716f

       Decode ModHex data "nghgibhv" and print hex-encode data:

           modhex -d -h nghgibhv

       modhex - convert data to/from modhex encoding

       The string DATA is the data to convert.

       -d
           Decode data (the default is to encode data).

       -h
           Use hex encoding for all non-modhex data.

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

yubico-c                                          Version 1.13                                         MODHEX(1)

modhex [-d] [-h] DATA