This part of IEC 62351 specifies schema, procedures, and algorithms for securing XML documents that are used within the scope of IEC TC57 as well as documents in other domains (e.g. IEEE, proprietary, etc.). This document utilizes well-known W3C standards for XML document security and provides profiling of these standards and additional extensions. The 62351-11 extensions provide the capability to provide: " Header: the header contains information relevant to the creation of the secured document such as the Date and Time of the when the IEC 62351-11 document was created. " a choice of encapsulating the original XML document in an encrypted (Encrypted) or non-encrypted (nonEncrypted) format. If encryption is chosen, there is a mechanism provided to express the information required to actually perform encryption in an interoperable manner (EncryptionInfo). " AccessControl: a mechanism to express access control information regarding information contained in the original XML document. " Body: is used to contain the original XML document that is being encapsulated. " Signature: a signature that can be used for the purposes of authentication and tamper detection.