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 genration for some
algorithms.
EVP_PKEY_CTX_dup() duplicates the context ctx.
EVP_PKEY_CTX_free() frees up the context ctx.
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 first added to OpenSSL 1.0.0.
1.0.1e 2013-02-11 EVP_PKEY_CTX_new(3)
