EVP_PKEY_meth_get_count(3ssl)

EVP_PKEY_meth_get_count3ssl

Enumerate public key methods

Usage

 #include <openssl/evp.h>

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):

 size_t EVP_PKEY_meth_get_count(void);
 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx);
 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
                              const EVP_PKEY_METHOD *meth);

Overview

All of the functions described on this page are deprecated. Applications should instead use the OSSL_PROVIDER APIs.

EVP_PKEY_meth_count() returns a count of the number of public key methods available: it includes standard methods and any methods added by the application.

EVP_PKEY_meth_get0() returns the public key method idx. The value of idx must be between zero and EVP_PKEY_meth_get_count() - 1.

EVP_PKEY_meth_get0_info() returns the public key ID (a NID) and any flags associated with the public key method *meth.

Return values

EVP_PKEY_meth_count() returns the number of available public key methods.

EVP_PKEY_meth_get0() return a public key method or NULL if idx is out of range.

EVP_PKEY_meth_get0_info() does not return a value.

Releases

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

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

History

All of these functions were deprecated in OpenSSL 3.0.

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