X509_GET_PUBKEY(3ossl) OpenSSL X509_GET_PUBKEY(3ossl)
NAME
X509_get_pubkey, X509_get0_pubkey, X509_set_pubkey,
X509_get_X509_PUBKEY, X509_REQ_get_pubkey, X509_REQ_get0_pubkey,
X509_REQ_set_pubkey, X509_REQ_get_X509_PUBKEY - get or set certificate
or certificate request public key
SYNOPSIS
#include <openssl/x509.h>
EVP_PKEY *X509_get_pubkey(X509 *x);
EVP_PKEY *X509_get0_pubkey(const X509 *x);
int X509_set_pubkey(X509 *x, EVP_PKEY *pkey);
X509_PUBKEY *X509_get_X509_PUBKEY(const X509 *x);
EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req);
EVP_PKEY *X509_REQ_get0_pubkey(X509_REQ *req);
int X509_REQ_set_pubkey(X509_REQ *x, EVP_PKEY *pkey);
X509_PUBKEY *X509_REQ_get_X509_PUBKEY(X509_REQ *x);
DESCRIPTION
X509_get_pubkey(3) attempts to decode the public key for certificate x.
If successful it returns the public key as an EVP_PKEY pointer with its
reference count incremented: this means the returned key must be freed
up after use. X509_get0_pubkey() is similar except it does not
increment the reference count of the returned EVP_PKEY so it must not
be freed up after use.
X509_get_X509_PUBKEY() returns an internal pointer to the X509_PUBKEY
structure which encodes the certificate of x. The returned value must
not be freed up after use.
X509_set_pubkey() attempts to set the public key for certificate x to
pkey. The key pkey should be freed up after use.
X509_REQ_get_pubkey(), X509_REQ_get0_pubkey(), X509_REQ_set_pubkey()
and X509_REQ_get_X509_PUBKEY() are similar but operate on certificate
request req.
NOTES
The first time a public key is decoded the EVP_PKEY structure is cached
in the certificate or certificate request itself. Subsequent calls
return the cached structure with its reference count incremented to
improve performance.
RETURN VALUES
X509_get_pubkey(3), X509_get0_pubkey(), X509_get_X509_PUBKEY(),
X509_REQ_get_pubkey() and X509_REQ_get_X509_PUBKEY() return a public
key or NULL if an error occurred.
X509_set_pubkey() and X509_REQ_set_pubkey() return 1 for success and 0
for failure.
SEE ALSO
d2i_X509(3), ERR_get_error(3), X509_CRL_get0_by_serial(3),
X509_get0_signature(3), X509_get_ext_d2i(3),
X509_get_extension_flags(3), X509_get_subject_name(3),
X509_get_version(3), X509_NAME_add_entry_by_txt(3),
X509_NAME_ENTRY_get_object(3), X509_NAME_get_index_by_NID(3),
X509_NAME_print_ex(3), X509_new(3), X509_sign(3), X509V3_get_d2i(3),
X509_verify_cert(3)
COPYRIGHT
Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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>.
3.3.2 2024-09-04 X509_GET_PUBKEY(3ossl)
openssl 3.3.2 - Generated Sat Sep 28 18:30:23 CDT 2024