1.7 Vendor-Extensible Fields

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The data spaces structure allows vendors to implement arbitrary transforms, data space definitions, and data space maps. In this way, the structure can be used to represent any arbitrary transformation to any arbitrary data.

The IRMDS structure does not contain any vendor-extensible fields.

ECMA-376 document encryption [ECMA-376] can be extended if either additional CryptoAPI providers are installed or extensible encryption is used.