Manual Pages for UNIX Operating System command usage for man SSL_CTX_add_client_CA

OpenSSL                      SSL_CTX_set_client_CA_list(3openssl)



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     SSL_CTX_set_client_CA_list, SSL_set_client_CA_list,
     SSL_CTX_add_client_CA, SSL_add_client_CA - set list of CAs
     sent to the client when requesting a client certificate

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
      #include 

      void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *list);
      void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *list);
      int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *cacert);
      int SSL_add_client_CA(SSL *ssl, X509 *cacert);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     SSL_CTX_set_client_CA_list() sets the lllliiiisssstttt of CAs sent to
     the client when requesting a client certificate for ccccttttxxxx.

     SSL_set_client_CA_list() sets the lllliiiisssstttt of CAs sent to the
     client when requesting a client certificate for the chosen
     ssssssssllll, overriding the setting valid for ssssssssllll's SSL_CTX object.

     SSL_CTX_add_client_CA() adds the CA name extracted from
     ccccaaaacccceeeerrrrtttt to the list of CAs sent to the client when requesting
     a client certificate for ccccttttxxxx.

     SSL_add_client_CA() adds the CA name extracted from ccccaaaacccceeeerrrrtttt
     to the list of CAs sent to the client when requesting a
     client certificate for the chosen ssssssssllll, overriding the
     setting valid for ssssssssllll's SSL_CTX object.

NNNNOOOOTTTTEEEESSSS
     When a TLS/SSL server requests a client certificate (see
     SSSSSSSSLLLL_CCCCTTTTXXXX_sssseeeetttt_vvvveeeerrrriiiiffffyyyy_ooooppppttttiiiioooonnnnssss(((())))), it sends a list of CAs, for
     which it will accept certificates, to the client.

     This list must explicitly be set using
     SSL_CTX_set_client_CA_list() for ccccttttxxxx and
     SSL_set_client_CA_list() for the specific ssssssssllll. The list
     specified overrides the previous setting. The CAs listed do
     not become trusted (lllliiiisssstttt only contains the names, not the
     complete certificates); use SSL_CTX_load_verify_locations(3)
     to additionally load them for verification.

     If the list of acceptable CAs is compiled in a file, the
     SSL_load_client_CA_file(3) function can be used to help
     importing the necessary data.

     SSL_CTX_add_client_CA() and SSL_add_client_CA() can be used
     to add additional items the list of client CAs. If no list
     was specified before using SSL_CTX_set_client_CA_list() or
     SSL_set_client_CA_list(), a new client CA list for ccccttttxxxx or



12/Apr/2001            Last change: 0.9.8o                      1






OpenSSL                      SSL_CTX_set_client_CA_list(3openssl)



     ssssssssllll (as appropriate) is opened.

     These functions are only useful for TLS/SSL servers.

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     SSL_CTX_set_client_CA_list() and SSL_set_client_CA_list() do
     not return diagnostic information.

     SSL_CTX_add_client_CA() and SSL_add_client_CA() have the
     following return values:

     1   The operation succeeded.

     0   A failure while manipulating the STACK_OF(X509_NAME)
         object occurred or the X509_NAME could not be extracted
         from ccccaaaacccceeeerrrrtttt. Check the error stack to find out the
         reason.

EEEEXXXXAAAAMMMMPPPPLLLLEEEESSSS
     Scan all certificates in CCCCAAAAffffiiiilllleeee and list them as acceptable
     CAs:

       SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));


SSSSEEEEEEEE AAAALLLLSSSSOOOO
     ssl(3), SSL_get_client_CA_list(3),
     SSL_load_client_CA_file(3), SSL_CTX_load_verify_locations(3)



























12/Apr/2001            Last change: 0.9.8o                      2