1pskc_get_key_data_timedrift(3)      libpskc     pskc_get_key_data_timedrift(3)
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NAME

6       pskc_get_key_data_timedrift - API function
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SYNOPSIS

9       #include <pskc.h>
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11       uint32_t pskc_get_key_data_timedrift(pskc_key_t * key, int * present);
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ARGUMENTS

14       pskc_key_t * key
15                   a pskc_key_t handle, from pskc_get_keypackage().
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17       int * present
18                   output  variable  indicating  whether  data was provided or
19                   not.
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DESCRIPTION

22       Get the PSKC KeyPackage Key Data TimeDrift value.   This  element  con‐
23       tains  the device clock drift value for time-based OTP algorithms.  The
24       integer value (positive or negative drift) that indicates the number of
25       time  intervals  that  a  validation  server has established the device
26       clock drifted after the last successful authentication.  So, for  exam‐
27       ple,  if  the  last successful authentication established a device time
28       value of 8 intervals from a specific  start  date  but  the  validation
29       server  determines  the  time  value  at 9 intervals, the server SHOULD
30       record the drift as -1.
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32       If present is non-NULL, it will be 0 if the field is not present  or  1
33       if it was present.
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RETURNS

36       an integer holding the content.
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REPORTING BUGS

39       Report  bugs  to  <oath-toolkit-help@nongnu.org>.   libpskc  home page:
40       http://www.gnu.org/software/libpskc/ General help using  GNU  software:
41       http://www.gnu.org/gethelp/
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44       Copyright © 2012-2020 Simon Josefsson.
45       Copying  and  distribution  of this file, with or without modification,
46       are permitted in any medium  without  royalty  provided  the  copyright
47       notice and this notice are preserved.
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51libpskc                              2.6.6      pskc_get_key_data_timedrift(3)
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