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gss_wrap_size_limit(3)					gss_wrap_size_limit(3)

NAME
       gss_wrap_size_limit()  - determine a token-size limit for gss_wrap on a
       context

SYNOPSIS

DESCRIPTION
       The routine allows an application to determine the maximum message size
       that,  if  presented to with the same conf_req_flag and qop_req parame‐
       ters, will result in an	output	token  containing  no  more  than  the
       req_output_size bytes.

       This  call  is  intended	 for use by applications that communicate over
       protocols that impose a maximum message size.  It enables the  applica‐
       tion to fragment messages prior to applying protection.

   Input Parameters
       context_handle	     Specifies	the  context  on  which the message is
			     sent.

       conf_req_flag	     Specifies the requested level of  confidentiality
			     and integrity services, as follows:

			     Non-zero	 Both  confidentiality	and  integrity
					 services are requested.

			     Zero	 Only	 integrity    services	   are
					 requested.

       qop_req		     Specifies the cryptographic algorithm, or quality
			     of protection.  A mechanism-specific default  may
			     be requested by setting qop_req to

       req_output_size	     The desired maximum size for tokens emitted by

   Output Parameters
       max_input_size	     The  maximum  input message size that may be pre‐
			     sented to in order to guarantee that the  emitted
			     token  shall  be  no  larger than req_output_size
			     bytes.

       minor_status	     Returns a status code from	 the  security	mecha‐
			     nism.

STATUS CODES
       The following status codes can be returned:

       The routine was completed successfully.

       The context identified in the
				context_handle parameter was not valid.

       The context has already expired.

       The specified QOP is not supported by the mechanism.

AUTHOR
       was developed by Sun Microsystems, Inc.

SEE ALSO
       gss_wrap(3).

       The  manpages  for DCE-GSSAPI are included with the DCE-CoreTools prod‐
       uct.  To see those manpages add to

							gss_wrap_size_limit(3)

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