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TPMLIB_DecodeBlob(3)					  TPMLIB_DecodeBlob(3)

NAME
       TPMLIB_DecodeBlob    - Decode a base64-encode TPM blob

SYNOPSIS
       #include	<libtpms/tpm_types.h>

       #include	<libtpms/tpm_library.h>

       TPM_RESULT TPMLIB_DecodeBlob(const char *buffer,
				    enum TPMLIB_BlobType type,
				    unsigned char **result
				    size_t *result_len);

DESCRIPTION
       The TPMLIB_DecodeBlob() function	is used	to decode a base64-encoded TPM
       state blob. The caller must pass	what type of blob is expected to be
       decoded and following that the function will look for the start and end
       markers of the data.

       The following types of blobs are	supported along	with their start and
       end markers:

       BLOB_TYPE_INITSTATE
	   '-----BEGIN	  INITSTATE-----'   marks   the	  beginning   of   the
	   base64-encoded blob.

	   '-----END INITSTATE-----' marks the end of the base64-encoded blob.

       This function is	useful when  passing  state  to	 the  TPM  inside  the
       callback	  that	 is   invoked  to  get	the  TPM's  state  blob.   See
       TPMLIB_RegisterCallbacks(3).

ERRORS
       TPM_SUCCESS
	   The function	completed successfully.

       TPM_SIZE
	   The size of a requested buffer exceeds the limit or the  system  is
	   out of memory.

       TPM_FAIL
	   An error occurred while attempting to decode	the blob.

       For  a complete list of TPM error codes please consult the include file
       libtpms/tpm_error.h

SEE ALSO
       TPMLIB_MainInit(3), TPMLIB_RegisterCallbacks(3)

libtpms				  2023-02-28		  TPMLIB_DecodeBlob(3)

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