SSL_SESSION_is_resumable(3ssl)

SSL_SESSION_is_resumable3ssl

Determine whether an ssl_session object can be used for resumption

Usage

 #include <openssl/ssl.h>
 int SSL_SESSION_is_resumable(const SSL_SESSION *s);

Overview

SSL_SESSION_is_resumable() determines whether an SSL_SESSION object can be used to resume a session or not. Returns 1 if it can or 0 if not. Note that attempting to resume with a non-resumable session will result in a full handshake.

Return values

SSL_SESSION_is_resumable() returns 1 if the session is resumable or 0 otherwise.

Releases

5 releases since Debian 10 (Buster); the text changed 4 times.

  1. 10
  2. 11
  3. 12
  4. 13
  5. Arch

History

The SSL_SESSION_is_resumable() function was added in OpenSSL 1.1.1.

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