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    Command:

    SSL_CTX_set_session_id_context

    
    
    
    

    SYNOPSIS

            #include <openssl/ssl.h>
    
            int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
                                               unsigned int sid_ctx_len);
            int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
                                           unsigned int sid_ctx_len);
    
    
    

    DESCRIPTION

           SSL_CTX_set_session_id_context() sets the context sid_ctx of length
           sid_ctx_len within which a session can be reused for the ctx object.
    
           SSL_set_session_id_context() sets the context sid_ctx of length
           sid_ctx_len within which a session can be reused for the ssl object.
    
    
    

    NOTES

           Sessions are generated within a certain context. When
           exporting/importing sessions with i2d_SSL_SESSION/d2i_SSL_SESSION it
           would be possible, to re-import a session generated from another
           context (e.g. another application), which might lead to malfunctions.
           Therefore each application must set its own session id context sid_ctx
           which is used to distinguish the contexts and is stored in exported
           sessions. The sid_ctx can be any kind of binary data with a given
           length, it is therefore possible to use e.g. the name of the
           application and/or the hostname and/or service name ...
    
           The session id context becomes part of the session. The session id
           context is set by the SSL/TLS server. The
           SSL_CTX_set_session_id_context() and SSL_set_session_id_context()
           functions are therefore only useful on the server side.
    
           OpenSSL clients will check the session id context returned by the
           server when reusing a session.
    
           The maximum length of the sid_ctx is limited to
           SSL_MAX_SSL_SESSION_ID_LENGTH.
    
    
    

    WARNINGS

           If the session id context is not set on an SSL/TLS server and client
           certificates are used, stored sessions will not be reused but a fatal
           error will be flagged and the handshake will fail.
    
           If a server returns a different session id context to an OpenSSL client
           when reusing a session, an error will be flagged and the handshake will
           fail. OpenSSL servers will always return the correct session id
           context, as an OpenSSL server checks the session id context itself
           before reusing a session as described above.
    
    
    

    RETURN VALUES

           SSL_CTX_set_session_id_context() and SSL_set_session_id_context()
           return the following values:
    
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