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).