NAME

       gss_get_mic - API function

SYNOPSIS

       #include <gss.h>

       OM_uint32   gss_get_mic(OM_uint32   *  minor_status,  const  gss_ctx_id_t  context_handle,
       gss_qop_t qop_req, const gss_buffer_t message_buffer, gss_buffer_t message_token);

ARGUMENTS

       OM_uint32 * minor_status
                   (Integer, modify) Mechanism specific status code.

       const gss_ctx_id_t context_handle
                   (gss_ctx_id_t, read) Identifies the context on
                     which the message will be sent.

       gss_qop_t qop_req
                   (gss_qop_t, read, optional) Specifies requested quality
                     of protection.  Callers are encouraged, on portability grounds,
                     to accept the default quality of protection offered by the chosen
                     mechanism, which may be requested by specifying GSS_C_QOP_DEFAULT
                     for this parameter.  If an unsupported protection strength is
                     requested, gss_get_mic will return a major_status of
                     GSS_S_BAD_QOP.

       const gss_buffer_t message_buffer
                   (buffer, opaque, read) Message to be protected.

       gss_buffer_t message_token
                   (buffer, opaque, modify) Buffer to receive token.  The
                     application must free storage associated with this buffer after
                     use with a call to gss_release_buffer().

DESCRIPTION

       Generates a cryptographic MIC for the supplied message, and places the MIC in a token  for
       transfer  to  the  peer application. The qop_req parameter allows a choice between several
       cryptographic algorithms, if supported by the chosen mechanism.

       Since some application-level protocols may wish to use tokens  emitted  by  gss_wrap()  to
       provide "secure framing", implementations must support derivation of MICs from zero-length
       messages.

RETURN VALUE

       `GSS_S_COMPLETE`: Successful completion.

       `GSS_S_CONTEXT_EXPIRED`: The context has already expired.

       `GSS_S_NO_CONTEXT`: The context_handle parameter did not identify a valid context.

       `GSS_S_BAD_QOP`: The specified QOP is not supported by the mechanism.

REPORTING BUGS

       Report  bugs  to   <bug-gss@gnu.org>.    GNU   Generic   Security   Service   home   page:
       http://www.gnu.org/software/gss/      General      help      using      GNU      software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright © 2003-2013 Simon Josefsson.
       Copying and distribution of this file, with or without modification, are permitted in  any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gss is maintained as a Texinfo manual.  If the info and gss
       programs are properly installed at your site, the command

              info gss

       should give you access to the complete manual.