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OpenSolaris 2009.06 - man page for gss_verify_mic (opensolaris section 3gss)

gss_verify_mic(3GSS)				  Generic Security Services API Library Functions			      gss_verify_mic(3GSS)

NAME
gss_verify_mic - verify integrity of a received message
SYNOPSIS
cc [ flag... ] file... -lgss [ library... ] #include <gssapi/gssapi.h> OM_uint32 gss_verify_mic(OM_uint32 *minor_status, const gss_ctx_id_t context_handle, const gss_buffer_t message_buffer, const gss_buffer_t token_buffer, gss_qop_t *qop_state);
DESCRIPTION
The gss_verify_mic() function verifies that a cryptographic MIC, contained in the token parameter, fits the supplied message. The qop_state parameter allows a message recipient to determine the strength of protection that was applied to the message. Since some application-level protocols may wish to use tokens emitted by gss_wrap(3GSS) to provide secure framing, the GSS-API supports the calculation and verification of MICs over zero-length messages.
PARAMETERS
The parameter descriptions for gss_verify_mic() follow: minor_status The status code returned by the underlying mechanism. context_handle Identifies the context on which the message arrived. message_buffer The message to be verified. token_buffer The token associated with the message. qop_state Specifies the quality of protection gained from the MIC. Specify NULL if this parameter is not required.
ERRORS
gss_verify_mic() may return the following status codes: GSS_S_COMPLETE Successful completion. GSS_S_DEFECTIVE_TOKEN The token failed consistency checks. GSS_S_BAD_SIG The MIC was incorrect. GSS_S_DUPLICATE_TOKEN The token was valid and contained a correct MIC for the message, but it had already been processed. GSS_S_OLD_TOKEN The token was valid and contained a correct MIC for the message, but it is too old to check for duplication. GSS_S_UNSEQ_TOKEN The token was valid and contained a correct MIC for the message, but it has been verified out of sequence; a later token has already been received. GSS_S_GAP_TOKEN The token was valid and contained a correct MIC for the message, but it has been verified out of sequence; an ear- lier expected token has not yet been received. 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_FAILURE The underlying mechanism detected an error for which no specific GSS status code is defined. The mechanism-spe- cific status code reported by means of the minor_status parameter details the error condition.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgss (32-bit) | +-----------------------------+-----------------------------+ | |SUNWgssx (64-bit) | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+
SEE ALSO
gss_wrap(3GSS), attributes(5) Solaris Security for Developers Guide SunOS 5.11 15 Jan 2003 gss_verify_mic(3GSS)