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Tspi_DecodeBER_TssBlob(3)             TCG Software Stack Developer's Reference

NAME
       Tspi_DecodeBER_TssBlob - unwraps a BER-encoded TSS blob.

SYNOPSIS
       #include <tss/tspi.h>

       TSS_RESULT Tspi_DecodeBER_TssBlob(UINT32  berBlobSize, BYTE*   berBlob,
                                         UINT32* blobType,    UINT32* rawBlobSize,
                                         BYTE*   rawBlob);

DESCRIPTION
       Tspi_DecodeBER_TssBlob  is used to unwrap a BER-encoded blob in
       accordance with the ASN.1 data definitions in the Portable Data section
       of the Trusted Computing Group Software Stack Specification Version
       1.2.

PARAMETERS
   berBlobSize
       Size of the BER-encoded blob.

   berBlob
       Pointer to the BER-encoded blob.

   blobType
       Pointer to the type of blob being unwrapped (refer to the
       TSS_BLOB_TYPE_* constants).

   rawBlobSize
       Pointer to the size of the rawBlob buffer.  On input this parameter
       contains a pointer to the maximum size of the supplied rawBlob buffer.
       On output this parameter contains a pointer to the actual size of the
       unwrapped blob.  On input, if this parameter points to a value of 0,
       then this function will return the size of the buffer required to hold
       the unwrapped blob without writing to the rawBlob buffer.

       Note: The output data must be shorter than the BER-encoding, so
       berBlobSize is a useful upper limit on rawBlob buffer size.

   rawBlob
       Pointer to a buffer to hold the unwrapped blob.

RETURN CODES
       Tspi_EncodeDER_TssBlob returns TSS_SUCCESS on success, otherwise one of
       the following values are returned:

       TSS_E_BAD_PARAMETER

       TSS_E_INTERNAL_ERROR - An error occurred internal to the TSS.

CONFORMING TO
       Tspi_DecodeBER_TssBlob conforms to the Trusted Computing Group Software
       Specification Version 1.2

SEE ALSO
       Tspi_DecodeBER_TssBlob(3).

TSS 1.2                           2007-06-12         Tspi_DecodeBER_TssBlob(3)