EVP_PKEY_CTX_new - EVP_PKEY_CTX_new, EVP_PKEY_CTX_new_id, EVP_PKEY_CTX_dup, public key algorithm context functions.
#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);
OpenSSL EVP_PKEY_CTX_new(3openssl)
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 genration
for some algorithms.
EVP_PKEY_CTX_dup() duplicates the context ctx.
EVP_PKEY_CTX_free() frees up the context ctx.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
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.
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
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 first added to OpenSSL 1.0.0.
1.0.2ze 2022-05-03
EVP_PKEY_CTX_new(3openssl)