| 摘要 |
There is disclosed a communication method comprising a sender (A) sending to a recipient (B) a digital communication (M) encrypted with an encryption for which there is a release key (Kr) and a message identifier, the recipient communicating the message identifier to a third party (T), the third party verifying the message identifier and communicating the release key (Kr) to the recipient for the recipient to decrypt the encrypted digital communication (Kr(M)). |
