Science Fair Project Encyclopedia
Link encryption
(Redirected from Bulk encryption)
Link encryption is an approach to communications security that encrypts and decrypts all traffic at each end a communications line (e.g. a teletype circuit). It contrasts with end-to-end encryption where messages are encrypted by the sender at the point of origin and only decrypted by the intended receiver. Link encryption a couple of several advantages:
- encryption is automatic so there is less opportunity for human error
- if the communications link operates continuously, link encryption defeats traffic analysis
On the other hand, end-to-end encryption insures only authorized persons see plaintext.
Link encryption can be used with end-to-end systems by superencrypting the messages.
Bulk encryption refers to encrypting a large number of circuits at once, after they have been multiplexed.
Last updated: 06-02-2005 03:06:42
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details