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gss_wrap(3gss)

gss_wrap(3gss)  Generic Security Services API Library Functions gss_wrap(3gss)

NAME
       gss_wrap - attach a cryptographic message

SYNOPSIS
       cc [ flag... ] file... -lgss  [ library... ]
       #include <gssapi/gssapi.h>

       OM_uint32 gss_wrap(OM_uint32 *minor_status,
            const gss_ctx_id_t context_handle, int conf_req_flag,
            gss_qop_t qop_req, const gss_buffer_t input_message_buffer,
            int *conf_state, gss_buffer_t output_message_buffer);


DESCRIPTION
       The gss_wrap() function attaches a cryptographic MIC and optionally en‐
       crypts  the  specified  input_message. The output_message contains both
       the MIC and the message. 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, the GSS-API supports the wrap‐
       ping of zero-length messages.

PARAMETERS
       The parameter descriptions for gss_wrap() follow:

       minor_status             The status code  returned  by  the  underlying
                                mechanism.


       context_handle           Identifies  the  context  on which the message
                                will be sent.


       conf_req_flag            If the value  of  conf_req_flag  is  non-zero,
                                both  confidentiality  and  integrity services
                                are requested. If the value is zero, then only
                                integrity service is requested.


       qop_req                  Specifies the required quality of  protection.
                                A  mechanism-specific default may be requested
                                by setting qop_req to GSS_C_QOP_DEFAULT. If an
                                unsupported protection strength is  requested,
                                gss_wrap()   will  return  a  major_status  of
                                GSS_S_BAD_QOP.


       input_message_buffer     The message to be protected.


       conf_state               If the value of conf_state is non-zero, confi‐
                                dentiality, data  origin  authentication,  and
                                integrity  services  have been applied. If the
                                value is zero, then  integrity  services  have
                                been  applied.  Specify NULL if this parameter
                                is not required.


       output_message_buffer    The buffer to receive the  protected  message.
                                Storage  associated  with this message must be
                                freed by the application after use with a call
                                to gss_release_buffer(3GSS).


ERRORS
       gss_wrap() may return the following status codes:

       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.


       GSS_S_FAILURE            The underlying mechanism detected an error for
                                which no specific GSS status code is  defined.
                                The mechanism-specific status code reported by
                                means  of  the  minor_status parameter details
                                the error condition.


ATTRIBUTES
       See attributes(7)  for descriptions of the following attributes:



       tab()  box;  cw(2.75i)  |cw(2.75i)  lw(2.75i)   |lw(2.75i)   ATTRIBUTE
       TYPEATTRIBUTE VALUE _ MT-LevelSafe



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   security/kerberos-5 = Stability Pass-through committed

SEE ALSO
       gss_release_buffer(3GSS), attributes(7)


NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at:
       https://github.com/oracle/solaris-userland

       The original community source was downloaded from:
       http://web.mit.edu/kerberos/dist/krb5/1.20/krb5-1.20.2.tar.gz

       Further information about this software can be found on the open source
       community website at http://web.mit.edu/kerberos/.

Solaris 11.4                      22 Aug 2011                   gss_wrap(3gss)
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