SSL_CTX_use_certificate(3)

     SSL_CTX_use_certificate0.9.6h (2002-02-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.

     Page 1                                         (printed 1/19/103)

     SSL_CTX_use_certificate0.9.6h (2002-02-SSL_CTX_use_certificate(3)

          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

     Page 2                                         (printed 1/19/103)

     SSL_CTX_use_certificate0.9.6h (2002-02-SSL_CTX_use_certificate(3)

          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

     Page 3                                         (printed 1/19/103)

     SSL_CTX_use_certificate0.9.6h (2002-02-SSL_CTX_use_certificate(3)

          error stack to find out the reason.

     SEE ALSO
          ssl(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)

     Page 4                                         (printed 1/19/103)