| 摘要 |
The invention relates to a method and system for data encryption implemented in conjunction with data transmission over a communications network. Accordi ng to the invention, an electronic message can be split into at least two parts that are individually forwarded to a receiver (126) via different identities (104, 106, 108, 110). The identities are, e.g., e-mail addresses, servers, subscriber connections or user identifiers. The selection of the identities, advantageously of a concealed character, can be made from a larger group of identities and may be varied on a per message, session or timed basis. Also in the receiving direction of the message it is possible to use plural differen t identities (114, 116, 118, 120) in the reception of a message. The received parts of the message can be identified among other traffic flow and subsequently combined with each other using key information. The arrangement disclosed herein may also be applied to data storage.
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