EVP_PKEY_CTX_new(3) OpenSSL EVP_PKEY_CTX_new(3)
NAME
EVP_PKEY_CTX_new, EVP_PKEY_CTX_new_id, EVP_PKEY_CTX_dup,
EVP_PKEY_CTX_free - public key algorithm context functions
SYNOPSIS
#include <openssl/evp.h>
EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *ctx);
void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
DESCRIPTION
The EVP_PKEY_CTX_new() function allocates public key algorithm context
using the algorithm specified in pkey and ENGINE e.
The EVP_PKEY_CTX_new_id() function allocates public key algorithm
context using the algorithm specified by id and ENGINE e. It is
normally used when no EVP_PKEY structure is associated with the
operations, for example during parameter generation of key generation
for some algorithms.
EVP_PKEY_CTX_dup() duplicates the context ctx.
EVP_PKEY_CTX_free() frees up the context ctx. If ctx is NULL, nothing
is done.
NOTES
The EVP_PKEY_CTX structure is an opaque public key algorithm context
used by the OpenSSL high-level public key API. Contexts MUST NOT be
shared between threads: that is it is not permissible to use the same
context simultaneously in two threads.
RETURN VALUES
EVP_PKEY_CTX_new(), EVP_PKEY_CTX_new_id(), EVP_PKEY_CTX_dup() returns
either the newly allocated EVP_PKEY_CTX structure of NULL if an error
occurred.
EVP_PKEY_CTX_free() does not return a value.
SEE ALSO
EVP_PKEY_new(3)
HISTORY
These functions were added in OpenSSL 1.0.0.
COPYRIGHT
Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
1.1.1h 2020-09-22 EVP_PKEY_CTX_new(3)
openssl 1.1.1h - Generated Sun Oct 4 10:25:55 CDT 2020