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
#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);
X509_get_pubkey() 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.
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.
X509_get_pubkey(), 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.
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 2015-2021 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>.