'\" t .\" Title: crypto_shash_final .\" Author: .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: June 2017 .\" Manual: Programming Interface .\" Source: Kernel Hackers Manual 4.9.30 .\" Language: English .\" .TH "CRYPTO_SHASH_FINAL" "9" "June 2017" "Kernel Hackers Manual 4\&.9\&." "Programming Interface" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" crypto_shash_final \- calculate message digest .SH "SYNOPSIS" .HP \w'int\ crypto_shash_final('u .BI "int crypto_shash_final(struct\ shash_desc\ *\ " "desc" ", u8\ *\ " "out" ");" .SH "ARGUMENTS" .PP \fIdesc\fR .RS 4 operational state handle that is already filled with data .RE .PP \fIout\fR .RS 4 output buffer filled with the message digest .RE .SH "DESCRIPTION" .PP Finalize the message digest operation and create the message digest based on all data added to the cipher handle\&. The message digest is placed into the output buffer\&. The caller must ensure that the output buffer is large enough by using crypto_shash_digestsize\&. .SH "RETURN" .PP 0 if the message digest creation was successful; < 0 if an error occurred .SH "AUTHORS" .PP \fBStephan Mueller\fR <\&smueller@chronox.de\&> .RS 4 Author. .RE .PP \fBMarek Vasut\fR <\&marek@denx.de\&> .RS 4 Author. .RE .SH "COPYRIGHT" .br