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X509_GET_PUBKEY(3) Library Functions Manual X509_GET_PUBKEY(3)

X509_get_pubkey, X509_set_pubkey, X509_get_X509_PUBKEY, X509_REQ_get_pubkey, X509_REQ_set_pubkeyget or set certificate or certificate request public key

#include <openssl/x509.h>

X509_get_pubkey(X509 *x);

X509_set_pubkey(X509 *x, EVP_PKEY *pkey);

X509_get_X509_PUBKEY(X509 *x);

X509_REQ_get_pubkey(X509_REQ *req);

X509_REQ_set_pubkey(X509_REQ *x, EVP_PKEY *pkey);

() 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.

() 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_get_X509_PUBKEY() is implemented as a macro.

() attempts to set the public key for certificate x to pkey. The key pkey should be freed up after use.

() and () 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_get_X509_PUBKEY(), and X509_REQ_get_pubkey() return a public key or NULL if an error occurred.

X509_set_pubkey() and X509_REQ_set_pubkey() return 1 for success or 0 for failure.

d2i_X509(3), ERR_get_error(3), X509_CRL_get0_by_serial(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), X509_verify_cert(3), X509V3_get_d2i(3)

December 5, 2016 OpenBSD-6.1