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gss_verify (3)
  • >> gss_verify (3) ( FreeBSD man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    gss_verify_mic
    
     
    gss_verify
    
     - Check a MIC against a message; verify integrity of a received message
    
    
    
     
    

    SYNOPSIS

       #include <gssapi/gssapi.h>
    OM_uint32 Fo gss_verify_mic Fa OM_uint32 *minor_status Fa const gss_ctx_id_t context_handle Fa const gss_buffer_t message_buffer Fa const gss_buffer_t token_buffer Fa gss_qop_t *qop_state Fc Ft OM_uint32 Fo gss_verify Fa OM_uint32 *minor_status Fa gss_ctx_id_t context_handle Fa gss_buffer_t message_buffer Fa gss_buffer_t token_buffer Fa gss_qop_t *qop_state Fc  

    DESCRIPTION

    Verifies that a cryptographic MIC, contained in the token parameter, fits the supplied message. The Fa 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 ();
    to provide "secure framing", implementations must support the calculation and verification of MICs over zero-length messages.

    The gss_verify ();
    routine is an obsolete variant of gss_verify_mic (.);
    It is provided for backwards compatibility with applications using the GSS-API V1 interface. A distinct entrypoint (as opposed to #define) is provided, both to allow GSS-API V1 applications to link and to retain the slight parameter type differences between the obsolete versions of this routine and its current form.  

    PARAMETERS

    minor_status
    Mechanism specific status code.
    context_handle
    Identifies the context on which the message arrived.
    message_buffer
    Message to be verified.
    token_buffer
    Token associated with message.
    qop_state
    Quality of protection gained from MIC. Specify NULL if not required.

     

    RETURN VALUES

    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 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 has been verified out of sequence; an earlier 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

     

    SEE ALSO

    gss_wrap3  

    STANDARDS

    RFC 2743
    Generic Security Service Application Program Interface Version 2, Update 1
    RFC 2744
    Generic Security Service API Version 2 : C-bindings

     

    HISTORY

    The manual page example first appeared in Fx 7.0 .  

    AUTHORS

    John Wray, Iris Associates  

    COPYRIGHT

    Copyright (C) The Internet Society (2000). All Rights Reserved.

    This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.

    The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns.

    This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    PARAMETERS
    RETURN VALUES
    SEE ALSO
    STANDARDS
    HISTORY
    AUTHORS
    COPYRIGHT


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