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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				  2025-06-10		  TPMLIB_DecodeBlob(3)

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