NAME

Tspi_Hash_UpdateHashValue - update the hash value of a hash object

SYNOPSIS

#include <tss/platform.h>
#include <tss/tcpa_defines.h>
#include <tss/tcpa_typedef.h>
#include <tss/tcpa_struct.h>
#include <tss/tss_typedef.h>
#include <tss/tss_structs.h>
#include <tss/tspi.h>

TSS_RESULT Tspi_Hash_UpdateHashValue(TSS_HHASH hHash, UINT32 ulDataLength, BYTE* rgbData);

DESCRIPTION

Tspi_Hash_UpdateHashValue updates the hash value of a hash object with new information. If the object was created with the flag TSS_HASH_OTHER, then this method will return an error. The object can't be modified after Tspi_Hash_SetHashValue, Tspi_Hash_GetHashValue, Tspi_Hash_Sign, or Tspi_Hash_VerifySignature have been called on it.

PARAMETERS

RETURN CODES

Tspi_Hash_UpdateHashValue returns TSS_SUCCESS on success, otherwise one of the following values is returned:

TSS_E_INVALID_HANDLE

hHash is not a valid handle.

TSS_E_INTERNAL_ERROR

An internal SW error has been detected.

TSS_E_BAD_PARAMETER

One or more parameters is bad.

TSS_E_HASH_INVALID_LENGTH

Hash length is inconsistent with hash algorithm.

TSS_E_HASH_NO_DATA

Hash object has no internal hash value.

CONFORMING TO

Tspi_Hash_UpdateHashValue conforms to the Trusted Computing Group Software Specification version 1.1 Golden

SEE ALSO

Tspi_Hash_GetHashValue(3), Tspi_Hash_Sign(3), Tspi_Hash_SetHashValue(3), Tspi_Hash_VerifySignature(3).