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Man Pages


Manual Reference Pages  -  TSPI_DECODEBER_TSSBLOB (3)

NAME

Tspi_DecodeBER_TssBlob - unwraps a BER-encoded TSS blob.

CONTENTS

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).

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TSS 1.2 TSPI_DECODEBER_TSSBLOB (3) 2007-06-12

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