From 3e1864aa14a33a3c917537a241f6a032cfcacf78 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 14 Oct 2017 01:01:14 +0200 Subject: General improvements MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- man/libkeccak_hmac_update.3 | 56 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 man/libkeccak_hmac_update.3 (limited to 'man/libkeccak_hmac_update.3') diff --git a/man/libkeccak_hmac_update.3 b/man/libkeccak_hmac_update.3 new file mode 100644 index 0000000..daaf3fb --- /dev/null +++ b/man/libkeccak_hmac_update.3 @@ -0,0 +1,56 @@ +.TH LIBKECCAK_HMAC_UPDATE 3 LIBKECCAK +.SH NAME +libkeccak_hmac_update - Partially HMAC-hash a message with erasure +.SH SYNOPSIS +.LP +.nf +#include +.P +int +libkeccak_hmac_update(libkeccak_state_t *\fIstate\fP, const char *\fImsg\fP, + size_t \fImsglen\fP); +.fi +.P +Link with +.IR -lkeccak . +.SH DESCRIPTION +The +.BR libkeccak_hmac_update () +function continues (or starts) HMAC-hashing a message. +The current state of the hashing is stored in +.IR *state , +and will be updated. The message specified by the +.I msg +parameter with the byte-size specified by the +.I msglen +parameter, will be hashed. +.PP +The +.BR libkeccak_hmac_update () +function may reallocate the state's message chunk buffer. +When doing so, it attempts to do so as securely as possible, +rather than as fast as possible. +.SH RETURN VALUES +The +.BR libkeccak_hmac_update () +function returns 0 upon successful completion. On error, +-1 is returned and +.I errno +is set to describe the error. +.SH ERRORS +The +.BR libkeccak_hmac_update () +function may fail for any reason specified by the function +.BR malloc (3). +.SH NOTES +Neither parameter by be +.I NULL +or 0. +.SH SEE ALSO +.BR libkeccak_hmac_create (3), +.BR libkeccak_hmac_initialise (3), +.BR libkeccak_hmac_digest (3), +.BR libkeccak_hmac_fast_update (3) +.SH BUGS +Please report bugs to https://github.com/maandree/libkeccak/issues or to +maandree@kth.se -- cgit v1.2.3-70-g09d2