SSL_CTX_use_certificate(3) OpenSSL SSL_CTX_use_certificate(3)NAME
SSL_CTX_use_certificate, SSL_CTX_use_certificate_ASN1,
SSL_CTX_use_certificate_file, SSL_use_certificate,
SSL_use_certificate_ASN1, SSL_use_certificate_file,
SSL_CTX_use_certificate_chain_file,
SSL_CTX_use_PrivateKey, SSL_CTX_use_PrivateKey_ASN1,
SSL_CTX_use_PrivateKey_file, SSL_CTX_use_RSAPrivateKey,
SSL_CTX_use_RSAPrivateKey_ASN1,
SSL_CTX_use_RSAPrivateKey_file, SSL_use_PrivateKey_file,
SSL_use_PrivateKey_ASN1, SSL_use_PrivateKey,
SSL_use_RSAPrivateKey, SSL_use_RSAPrivateKey_ASN1,
SSL_use_RSAPrivateKey_file, SSL_CTX_check_private_key,
SSL_check_private_key - load certificate and key data
SYNOPSIS
#include <openssl/ssl.h>
int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, unsigned char *d);
int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type);
int SSL_use_certificate(SSL *ssl, X509 *x);
int SSL_use_certificate_ASN1(SSL *ssl, unsigned char *d, int len);
int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx, unsigned char *d,
long len);
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type);
int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, unsigned char *d, long len);
int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type);
int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
int SSL_use_PrivateKey_ASN1(int pk,SSL *ssl, unsigned char *d, long len);
int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len);
int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
int SSL_CTX_check_private_key(SSL_CTX *ctx);
int SSL_check_private_key(SSL *ssl);
DESCRIPTION
These functions load the certificates and private keys
into the SSL_CTX or SSL object, respectively.
The SSL_CTX_* class of functions loads the certificates
and keys into the SSL_CTX object ctx. The information is
passed to SSL objects ssl created from ctx with SSL_new(3)
by copying, so that changes applied to ctx do not
propagate to already existing SSL objects.
The SSL_* class of functions only loads certificates and
keys into a specific SSL object. The specific information
is kept, when SSL_clear(3) is called for this SSL object.
SSL_CTX_use_certificate() loads the certificate x into
ctx, SSL_use_certificate() loads x into ssl. The rest of
the certificates needed to form the complete certificate
chain can be specified using the
SSL_CTX_add_extra_chain_cert(3) function.
SSL_CTX_use_certificate_ASN1() loads the ASN1 encoded
certificate from the memory location d (with length len)
into ctx, SSL_use_certificate_ASN1() loads the ASN1
encoded certificate into ssl.
SSL_CTX_use_certificate_file() loads the first certificate
stored in file into ctx. The formatting type of the
certificate must be specified from the known types
SSL_FILETYPE_PEM, SSL_FILETYPE_ASN1.
SSL_use_certificate_file() loads the certificate from file
into ssl. See the NOTES section on why
SSL_CTX_use_certificate_chain_file() should be preferred.
SSL_CTX_use_certificate_chain_file() loads a certificate
chain from file into ctx. The certificates must be in PEM
format and must be sorted starting with the certificate to
the highest level (root CA). There is no corresponding
function working on a single SSL object.
SSL_CTX_use_PrivateKey() adds pkey as private key to ctx.
SSL_CTX_use_RSAPrivateKey() adds the private key rsa of
type RSA to ctx. SSL_use_PrivateKey() adds pkey as private
key to ssl; SSL_use_RSAPrivateKey() adds rsa as private
key of type RSA to ssl.
SSL_CTX_use_PrivateKey_ASN1() adds the private key of type
pk stored at memory location d (length len) to ctx.
SSL_CTX_use_RSAPrivateKey_ASN1() adds the private key of
type RSA stored at memory location d (length len) to ctx.
SSL_use_PrivateKey_ASN1() and SSL_use_RSAPrivateKey_ASN1()
add the private key to ssl.
SSL_CTX_use_PrivateKey_file() adds the first private key
found in file to ctx. The formatting type of the
certificate must be specified from the known types
SSL_FILETYPE_PEM, SSL_FILETYPE_ASN1.
SSL_CTX_use_RSAPrivateKey_file() adds the first private
RSA key found in file to ctx. SSL_use_PrivateKey_file()
adds the first private key found in file to ssl;
SSL_use_RSAPrivateKey_file() adds the first private RSA
key found to ssl.
SSL_CTX_check_private_key() checks the consistency of a
private key with the corresponding certificate loaded into
ctx. If more than one key/certificate pair (RSA/DSA) is
installed, the last item installed will be checked. If
e.g. the last item was a RSA certificate or key, the RSA
key/certificate pair will be checked.
SSL_check_private_key() performs the same check for ssl.
If no key/certificate was explicitly added for this ssl,
the last item added into ctx will be checked.
NOTES The internal certificate store of OpenSSL can hold two
private key/certificate pairs at a time: one
key/certificate of type RSA and one key/certificate of
type DSA. The certificate used depends on the cipher
select, see also SSL_CTX_set_cipher_list(3).
When reading certificates and private keys from file,
files of type SSL_FILETYPE_ASN1 (also known as DER, binary
encoding) can only contain one certificate or private key,
consequently SSL_CTX_use_certificate_chain_file() is only
applicable to PEM formatting. Files of type
SSL_FILETYPE_PEM can contain more than one item.
SSL_CTX_use_certificate_chain_file() adds the first
certificate found in the file to the certificate store.
The other certificates are added to the store of chain
certificates using SSL_CTX_add_extra_chain_cert(3). There
exists only one extra chain store, so that the same chain
is appended to both types of certificates, RSA and DSA! If
it is not intended to use both type of certificate at the
same time, it is recommended to use the
SSL_CTX_use_certificate_chain_file() instead of the
SSL_CTX_use_certificate_file() function in order to allow
the use of complete certificate chains even when no
trusted CA storage is used or when the CA issuing the
certificate shall not be added to the trusted CA storage.
If additional certificates are needed to complete the
chain during the TLS negotiation, CA certificates are
additionally looked up in the locations of trusted CA
certificates, see SSL_CTX_load_verify_locations(3).
The private keys loaded from file can be encrypted. In
order to successfully load encrypted keys, a function
returning the passphrase must have been supplied, see
SSL_CTX_set_default_passwd_cb(3). (Certificate files
might be encrypted as well from the technical point of
view, it however does not make sense as the data in the
certificate is considered public anyway.)
RETURN VALUES
On success, the functions return 1. Otherwise check out
the error stack to find out the reason.
SEE ALSOssl(3), SSL_new(3), SSL_clear(3),
SSL_CTX_load_verify_locations(3),
SSL_CTX_set_default_passwd_cb(3),
SSL_CTX_set_cipher_list(3), SSL_CTX_set_client_cert_cb(3),
SSL_CTX_add_extra_chain_cert(3)15/Feb/2002 0.9.6j SSL_CTX_use_certificate(3)
