---
name: "gnutls_privkey_decrypt_data2"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_privkey_decrypt_data2"
---

# gnutls\_privkey\_decrypt\_data2(3)

API function

## NAME

gnutls\_privkey\_decrypt\_data2 - API function

## SYNOPSIS

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

**int gnutls\_privkey\_decrypt\_data2(gnutls\_privkey\_t** *key***, unsigned int** *flags***, const gnutls\_datum\_t \*** *ciphertext***, unsigned char \*** *plaintext***, size\_t** *plaintext\_size***);**

## ARGUMENTS

- gnutls\_privkey\_t key

  Holds the key

- unsigned int flags

  zero for now

- const gnutls\_datum\_t \* ciphertext

  holds the data to be decrypted

- unsigned char \* plaintext

  a preallocated buffer that will be filled with the plaintext

- size\_t plaintext\_size

  in/out size of the plaintext

## DESCRIPTION

This function will decrypt the given data using the algorithm supported by the private key. Unlike with **gnutls\_privkey\_decrypt\_data()** this function operates in constant time and constant memory access.

## RETURNS

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

## SINCE

3\.6.5

## REPORTING BUGS

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

## COPYRIGHT

Copyright © 2001-2023 Free Software Foundation, Inc., and others.\
 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

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