-----BEGIN PGP SIGNED MESSAGE----- Eric Messick has an interesting idea in his "postage due" anonymous addresses, where the forwarders would encrypt the message contents as it passed through, and then the receiver would have to pay them to get the message decrypted. Chaum's idea was that the message contents would be encrypted at each step, as Eric suggests, but Chaum would have the encryption key be part of the anonymous address, created by the same person who made the anonymous address. The idea would be, after decrypting the incoming message, the remailer would see something like: Anon-To: <next destination> Encrypt-With: <some DES or IDEA key> It would then encrypt the message "contents" (but not the "envelope", as Eric points out) using the specified key. When the owner of the anonymous address received the message, he would decrypt it using the chain of "Encrypt-With" keys that he put into the anonymous address. This does not support Eric's feature of allowing remailers to charge for anonymous addresses, but it does provide more security than the current remailers by changing the message contents at each step. Hal 74076.1041@compuserve.com -----BEGIN PGP SIGNATURE----- Version: 2.1 iQCVAgUBK0IQLqgTA69YIUw3AQHqawQAozCAXrHB1+dksB2fQKeqIoY530340chd PZlznNGv0wp5gZdIJnFqJ/40scABHjuMc7B7e9QnUglMm1j59b6ZJOGON8kOaYsm J19vsCOWEWuQhFtMl6oC4hXxPtjZ1BOdm8lr+RQ7KZlpBTe4eusoEMaV5zMMk1TI vkAT6A4YZ5o= =DZE1 -----END PGP SIGNATURE-----