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)