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27 .\" The following commands are required for all man pages.
34 .Nd Calculate a cryptographic message integrity code (MIC) for a
35 message; integrity service
36 .\" This next command is for sections 2 and 3 only.
42 .Fa "OM_uint32 *minor_status"
43 .Fa "const gss_ctx_id_t context_handle"
44 .Fa "gss_qop_t qop_req"
45 .Fa "const gss_buffer_t message_buffer"
46 .Fa "gss_buffer_t msg_token"
50 .Fa "OM_uint32 *minor_status"
51 .Fa "const gss_ctx_id_t context_handle"
52 .Fa "gss_qop_t qop_req"
53 .Fa "gss_buffer_t message_buffer"
54 .Fa "gss_buffer_t msg_token"
57 Generates a cryptographic MIC for the supplied message,
58 and places the MIC in a token for transfer to the peer application.
61 parameter allows a choice between several cryptographic algorithms,
62 if supported by the chosen mechanism.
64 Since some application-level protocols may wish to use tokens emitted
67 to provide "secure framing",
68 implementations must support derivation of MICs from zero-length messages.
72 routine is an obsolete variant of
75 provided for backwards
76 compatibility with applications using the GSS-API V1 interface.
77 A distinct entrypoint (as opposed to #define) is provided,
78 both to allow GSS-API V1 applications to link
79 and to retain the slight parameter type differences between the
80 obsolete versions of this routine and its current form.
82 .Bl -tag -width ".It message_buffer"
84 Mechanism specific status code.
86 Identifies the context on which the message will be sent.
88 Specifies requested quality of protection.
89 Callers are encouraged, on portability grounds,
90 to accept the default quality of protection offered by the chosen
92 which may be requested by specifying
95 If an unsupported protection strength is requested,
102 Message to be protected.
104 Buffer to receive token.
105 The application must free storage associated with this buffer after
107 .Fn gss_release_buffer .
110 .Bl -tag -width ".It GSS_S_CONTEXT_EXPIRED"
112 Successful completion
113 .It GSS_S_CONTEXT_EXPIRED
114 The context has already expired
116 The context_handle parameter did not identify a valid context
118 The specified QOP is not supported by the mechanism
121 .Xr gss_release_buffer 3 ,
124 .Bl -tag -width ".It RFC 2743"
126 Generic Security Service Application Program Interface Version 2, Update 1
128 Generic Security Service API Version 2 : C-bindings
133 function first appeared in
136 John Wray, Iris Associates
138 Copyright (C) The Internet Society (2000). All Rights Reserved.
140 This document and translations of it may be copied and furnished to
141 others, and derivative works that comment on or otherwise explain it
142 or assist in its implementation may be prepared, copied, published
143 and distributed, in whole or in part, without restriction of any
144 kind, provided that the above copyright notice and this paragraph are
145 included on all such copies and derivative works. However, this
146 document itself may not be modified in any way, such as by removing
147 the copyright notice or references to the Internet Society or other
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