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Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 2.1AS

(Slurm)

SSL_CTX_set_cipher_list(3ssl)


SSL_CTX_set_cipher_list

SSL_CTX_set_cipher_list

NAME
SYNOPSIS
DESCRIPTION
NOTES
RETURN VALUES
SEE ALSO

NAME

SSL_CTX_set_cipher_list, SSL_set_cipher_list − choose list of available SSL_CIPHERs

SYNOPSIS

 #include <openssl/ssl.h>

 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str);
 int SSL_set_cipher_list(SSL *ssl, const char *str);

DESCRIPTION

SSL_CTX_set_cipher_list() sets the list of available ciphers for ctx using the control string str. The format of the string is described in ciphers(1). The list of ciphers is inherited by all ssl objects created from ctx.

SSL_set_cipher_list() sets the list of ciphers only for ssl.

NOTES

The control string str should be universally usable and not depend on details of the library configuration (ciphers compiled in). Thus no syntax checking takes place. Items that are not recognized, because the corresponding ciphers are not compiled in or because they are mistyped, are simply ignored. Failure is only flagged if no ciphers could be collected at all.

It should be noted, that inclusion of a cipher to be used into the list is a necessary condition. On the client side, the inclusion into the list is also sufficient. On the server side, additional restrictions apply. All ciphers have additional requirements. ADH ciphers don’t need a certificate, but DH−parameters must have been set. All other ciphers need a corresponding certificate and key. A RSA cipher can only be chosen, when a RSA certificate is available, the respective is valid for DSA ciphers. Ciphers using EDH need a certificate and key and DH−parameters.

RETURN VALUES

SSL_CTX_set_cipher_list() and SSL_set_cipher_list() return 1 if any cipher could be selected and 0 on complete failure.

SEE ALSO

ssl(3), SSL_get_ciphers(3), SSL_CTX_use_certificate(3), ciphers(1)



SSL_CTX_set_cipher_list(3ssl)