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oath_hotp_validate(3)		    liboath		 oath_hotp_validate(3)

NAME
       oath_hotp_validate - API	function

SYNOPSIS
       #include	<oath.h>

       int  oath_hotp_validate(const  char  *  secret,	size_t	secret_length,
       uint64_t	start_moving_factor, size_t window, const char * otp);

ARGUMENTS
       const char * secret
		   the shared secret string

       size_t secret_length
		   length of secret

       uint64_t	start_moving_factor
		   start counter in OTP	stream

       size_t window
		   how many OTPs after start counter to	test

       const char * otp
		   the OTP to validate.

DESCRIPTION
       Validate	an OTP according to OATH HOTP algorithm	per RFC	4226.

       Currently only OTP lengths of 6,	7 or 8 digits are supported.  This re-
       strictions  may be lifted in future versions, although some limitations
       are inherent in the protocol.

RETURNS
       Returns position	in OTP window (zero is first  position),  or  OATH_IN-
       VALID_OTP if no OTP was found in	OTP window, or an error	code.

REPORTING BUGS
       Report  bugs  to	 <oath-toolkit-help@nongnu.org>.   liboath  home page:
       http://www.gnu.org/software/liboath/ General help using	GNU  software:
       http://www.gnu.org/gethelp/

COPYRIGHT
       Copyright (C) 2009-2016 Simon Josefsson.
       Copying	and  distribution  of this file, with or without modification,
       are permitted in	any medium without royalty provided the	copyright  no-
       tice and	this notice are	preserved.

liboath				     2.6.2		 oath_hotp_validate(3)

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT

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