초록 ▼

A method for sending a secure message in a telecommunications system using public encryption keys. A sending transceiver encrypts the message c using the sender's own public encryption key Ex to generate Ex(c), and, transmits the encrypted message Ex(c) to a receiving transceiver. The receiving tran

A method for sending a secure message in a telecommunications system using public encryption keys. A sending transceiver encrypts the message c using the sender's own public encryption key Ex to generate Ex(c), and, transmits the encrypted message Ex(c) to a receiving transceiver. The receiving transceiver then encrypts the encrypted message Ex(c) using the encryption key Ey of the intended receiver of the message to generate the message Ey(Ex(c)), and, transmits the message Ey(Ex(c)) back to the sending transceiver. The sending transceiver then decrypts the message Ey(Ex(c)) using sender's private decryption key to generate Dx(Ey(Ex(c)))=Ey(c), and, transmits the message Ey(c) back to the receiving transceiver. The receiving transceiver then either decrypts the message using its own decryption key Dy, if it is the intended receiver of the message, to generate Dy(Ey(c))=c, or, forwards the message on to the intended receiver of the message, if it is not the intended receiver of the message, where the intended receiver decrypts the message using its own decryption key Dy.

대표청구항 ▼

[ What is claimed is:] [1.] In a telecommunications system having at least one base station and a plurality of mobile stations, a method for sending a secure message, said method comprising the steps of:assigning each mobile station a decryption key and an encryption key, wherein each encryption key

[ What is claimed is:] [1.] In a telecommunications system having at least one base station and a plurality of mobile stations, a method for sending a secure message, said method comprising the steps of:assigning each mobile station a decryption key and an encryption key, wherein each encryption key is public;encrypting a first message at a first mobile station using the encryption key of said first mobile station to generate a second message;transmitting said second message from said first mobile station to said at least one base station;encrypting said second message at said at least one base station, using the encryption key of a second mobile station, to generate a third message;transmitting said third message from said at least one base station to said first mobile station;decrypting said third message at said first mobile station, using the decryption key of said first mobile station, to generate a fourth message;transmitting said fourth message from said first mobile station to said at least one base station;transmitting said fourth message from said at least one base station to said second mobile station; anddecrypting said fourth message at said second mobile station using the decryption key of said second mobile station to regenerate said first message.