---
name: "gnutls_privkey_sign_raw_data"
section: "3"
platform: "linux"
package: "gnutls-doc"
version: "3.3.8-6+deb8u7"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_privkey_sign_raw_data"
---

# gnutls\_privkey\_sign\_raw\_data(3)

API function

## NAME

gnutls\_privkey\_sign\_raw\_data - API function

## SYNOPSIS

**#include \<gnutls/compat.h\>**

**int gnutls\_privkey\_sign\_raw\_data(gnutls\_privkey\_t** *key***, unsigned** *flags***, const gnutls\_datum\_t \*** *data***, gnutls\_datum\_t \*** *signature***);**

## ARGUMENTS

- gnutls\_privkey\_t key

  Holds the key

- unsigned flags

  should be zero

- const gnutls\_datum\_t \* data

  holds the data to be signed

- gnutls\_datum\_t \* signature

  will contain the signature allocate with **gnutls\_malloc()**

## DESCRIPTION

This function will sign the given data using a signature algorithm supported by the private key. Note that this is a low-level function and does not apply any preprocessing or hash on the signed data.  For example on an RSA key the input  *data* should be of the DigestInfo PKCS **1** 1.5 format. Use it only if you know what are you doing.

Note this function is equivalent to using the **GNUTLS\_PRIVKEY\_SIGN\_FLAG\_TLS1\_RSA** flag with **gnutls\_privkey\_sign\_hash()**.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value.

## SINCE

3\.1.10

## REPORTING BUGS

Report bugs to \<bugs@gnutls.org\>.\
 Home page: http://www.gnutls.org

## COPYRIGHT

Copyright © 2001-2014 Free Software Foundation, Inc..\
 Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

## SEE ALSO

The full documentation for **gnutls** is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit

- http://www.gnutls.org/manual/