RAND_cleanup(3ssl)

RAND_cleanup3ssl

Erase the prng state

Usage

 #include <openssl/rand.h>

The following function has been deprecated since OpenSSL 1.1.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):

 void RAND_cleanup(void);

Overview

Prior to OpenSSL 1.1.0, RAND_cleanup() released all resources used by the PRNG. As of version 1.1.0, it does nothing and should not be called, since no explicit initialisation or de-initialisation is necessary. See OPENSSL_init_crypto(3).

Return values

RAND_cleanup() returns no value.

Releases

13 releases since Debian 3.0 (Woody); the text changed 12 times.

  1. 3.0
  2. 3.1
  3. 4.0
  4. 5.0
  5. 6.0
  6. 7
  7. 8
  8. 9
  9. 10
  10. 11
  11. 12
  12. 13
  13. Arch

History

RAND_cleanup() was deprecated in OpenSSL 1.1.0; do not use it. See OPENSSL_init_crypto(3)

From openssl 3.6.5-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.