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 defini‐
       tions 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 re‐
       turned:

       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)