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Tspi_EncodeDER_TssBlob(3)    TCG Software Stack Developer's Reference	Tspi_EncodeDER_TssBlob(3)

NAME
       Tspi_EncodeDER_TssBlob - generate a DER encoded TSS blob.

SYNOPSIS
       #include <tss/tspi.h>

       TSS_RESULT Tspi_EncodeDER_TssBlob(UINT32 rawBlobSize, BYTE*   rawBlob,
					 UINT32 blobType,    UINT32* derBlobSize,
					 BYTE*	derBlob);

DESCRIPTION
       Tspi_EncodeDER_TssBlob	is  used  to  generate	a DER-encoded blob in accordance with the
       ASN.1 data definitions in the Portable Data section of the Trusted Computing  Group  Soft-
       ware Stack Specification Version 1.2.

PARAMETERS
   rawBlobSize
       Size of the unwrapped blob.

   rawBlob
       Pointer to the unwrapped blob.

   blobType
       Type of blob being wrapped (refer to the TSS_BLOB_TYPE_* constants).

   derBlobSize
       Pointer	to the size of the derBlob buffer.  On input this parameter contains a pointer to
       the maximum size of the supplied derBlob buffer.  On  output  this  parameter  contains	a
       pointer to the actual size of the DER-encoded 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
       DER-encoded blob without writing to the derBlob buffer.

       Note: If the raw data blob length is less than 2^16 bytes then the DER-encoding may add no
       more than 20 bytes.

   derBlob
       Pointer to a buffer to hold the DER-encoded blob.

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

       TSS_E_BAD_PARAMETER

       TSS_E_INTERNAL_ERROR - An error occurred internal to the TSS.

CONFORMING TO
       Tspi_EncodeDER_TssBlob conforms to the Trusted Computing Group Software Specification Ver-
       sion 1.2

SEE ALSO
       Tspi_DecodeBER_TssBlob(3).

TSS 1.2 				    2007-06-12			Tspi_EncodeDER_TssBlob(3)
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