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VerifySignature (Compact 2013)

  • [アーティクル]

3/28/2014

This function verifies the signature of a message at the other end.

Syntax

SECURITY_STATUS SEC_ENTRY VerifySignature( 
  PCtxtHandle phContext,
  PSecBufferDesc pMessage, 
  ULONG MessageSeqNo, 
  ULONG SEC_FAR* pfQOP 
);

Parameters

  • phContext
    [in] Pointer to a CtxtHandle structure identifying the context handle. For information on CtxtHandle, see SSPI Handles.
  • pMessage
    [in] Pointer to a SecBufferDesc structure that references a set of SecBuffer structures containing the message and signature to verify. The signature is in a SecBuffer structure of type SECBUFFER_TOKEN.
  • MessageSeqNo
    [in] The message sequence number expected by the transport application, if any. If the transport application does not maintain sequence numbers, this parameter is zero.
  • pfQOP
    [out] Pointer to package-specific flags that indicate the quality of protection.

Return Value

This function returns SEC_E_OK to indicate that it verified that the message was received in the correct sequence and had not been modified. If the function determines that the message is not correct according to the information in the signature, it returns one of the error values described in the following table.

Value

Description

SEC_E_OUT_OF_SEQUENCE

The message was not received in the correct sequence.

SEC_E_MESSAGE_ALTERED

The message has been altered.

Remarks

This function verifies that the message received was correct according to the information in the signature.

Requirements

Header

security.h,
sspi.h

Library

secur32.lib

See Also

Reference

Authentication Services Functions
MakeSignature
SecBuffer
SecBufferDesc