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Man Pages


Manual Reference Pages  -  OCRA_TOOL (8)

NAME

ocra_tool - create and view OCRA credential files

CONTENTS

Synopsis
Description
Example
Files
See Also
Author

SYNOPSIS

ocra_tool info -f credential_file ocra_tool init -f credential_file -s suite_string -k key [-c counter] [-p pin |-P pinhash] [-w counter_window] [-t timestamp_offset]

DESCRIPTION

The ocra_tool utility is used to initialize and view OCRA credential files used by the pam_ocra 8 authentication service module for PAM.
info Show content of OCRA credential file.
-f credential_file
  the OCRA credential file.
init Initialize OCRA credential file.
-f credential_file
  the OCRA credential file.
-s suite_string
  OCRA suite string.
-k key specified as hexadecimal string.
-c counter
  If the suite_string requires a counter parameter, counter is the initial counter value. If counter begins with ’0x’ it will be interpreted as hexadecimal number.
-p pin |-P pinhash
  If the suite_string requires a pin-hash parameter, it is either set as hexadecimal string pinhash or calculated from pin using the pin-hash algorithm in suite_string.
-w counter_window
  If the suite_string requires a counter parameter, counter_window specifies the maximum number of verify attempts pam_ocra(8) will make (while incrementing the counter value). This parameter is optional.
-t timestamp_offset
  If the suite_string requires a timestamp parameter, timestamp_offset specifies the number of timestamp steps pam_ocra(8) will make while verifying a response. The verify process will start at (current_timestamp - timestamp_offset) and end at (current_timestamp + timestamp_offset). This parameter is optional.

EXAMPLE

$ ocra_tool init -f ~/.ocra -s OCRA-1:HOTP-SHA1-6:C-QN08-PSHA1 \

-k 00112233445566778899aabbccddeeff00112233 \

-c 10 -p 1234 -w 50

$ ocra_tool info -f ~/.ocra

suite: OCRA-1:HOTP-SHA1-6:C-QN08-PSHA1

key: 0x00112233445566778899aabbccddeeff00112233

counter: 0x000000000000000a

counter_window: 50

pin_hash: 0x7110eda4d09e062aa5e4a390b0a572ac0d2c0220
.Lp

FILES

~/.ocra
  OCRA credential file

SEE ALSO

pam_ocra(8)

AUTHOR

ocra_tool and this manual page were developed by Stefan Grundmann.
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