'\" t
.\"     Title: kcapi_aead_getdata_input
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: November 2020
.\"    Manual: Programming Interface
.\"    Source: libkcapi Manual 1.2.1
.\"  Language: English
.\"
.TH "KCAPI_AEAD_GETDATA_I" "3" "November 2020" "libkcapi Manual 1\&.2\&.1" "Programming Interface"
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.SH "NAME"
kcapi_aead_getdata_input \- get the pointers into input buffer
.SH "SYNOPSIS"
.HP \w'void\ kcapi_aead_getdata_input('u
.BI "void kcapi_aead_getdata_input(struct\ kcapi_handle\ *\ " "handle" ", uint8_t\ *\ " "encdata" ", uint32_t\ " "encdatalen" ", int\ " "enc" ", uint8_t\ **\ " "aad" ", uint32_t\ *\ " "aadlen" ", uint8_t\ **\ " "data" ", uint32_t\ *\ " "datalen" ", uint8_t\ **\ " "tag" ", uint32_t\ *\ " "taglen" ");"
.SH "ARGUMENTS"
.PP
\fIhandle\fR
.RS 4
[in] cipher handle
.RE
.PP
\fIencdata\fR
.RS 4
[in] data buffer returned by the encryption operation
.RE
.PP
\fIencdatalen\fR
.RS 4
[in] size of the encryption data buffer
.RE
.PP
\fIenc\fR
.RS 4
[in] does output buffer hold encryption or decryption result?
.RE
.PP
\fIaad\fR
.RS 4
[out] AD buffer pointer; when set to NULL, no data pointer is returned
.RE
.PP
\fIaadlen\fR
.RS 4
[out] length of AD; when aad was set to NULL, no information is returned
.RE
.PP
\fIdata\fR
.RS 4
[out] pointer to output buffer from AEAD encryption operation when set to NULL, no data pointer is returned
.RE
.PP
\fIdatalen\fR
.RS 4
[out] length of data buffer; when data was set to NULL, no information is returned
.RE
.PP
\fItag\fR
.RS 4
[out] tag buffer pointer; when set to NULL, no data pointer is returned
.RE
.PP
\fItaglen\fR
.RS 4
[out] length of tag; when tag was set to NULL, no information is returned
.RE
.SH "DESCRIPTION"
.PP
This function is a service function to the consumer to locate the right ciphertext buffer offset holding the authentication tag\&. In addition, it provides the consumer with the length of the tag and the length of the ciphertext\&.
.SH "AUTHOR"
.PP
\fBStephan Mueller\fR <\&smueller@chronox.de\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br