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Optional Bundle Agent Security Services for protecting DTN applications Source authentication— to enable the destination bundle agent to verify the identity of the source that claims to have originated the bundle Destination authentication— to enable the destination bundle agent to verify that all bundles that it receives were in fact intended for it End-to-end bundle integrity— to enable the destination bundle agent to detect bundles (including bundle payload) that have been modified since being sent from the source Replay detection— to enable the destination bundle agent to detect and discard bundles that are replays of previously-received bundles Support for DTN application data confidentiality— providing mechanisms to identify the algorithm and key that has been used by the source DTN application to encrypt application data |