US 10,951,596 B2 · Method for secure device-to-device communication using multilayered cyphers

Abstract

A method for secure device-to-device communication using multilayered ciphers is provided. A selected cipher is employed to generate a pair of encryption/decryption keystreams for enabling multilayered encryption/decryption on a pulsed-index communication (PIC) packet(s). In examples discussed herein, a first layer encryption/decryption is performed by encrypting/decrypting a PIC data(s) (PD(s)) in the PIC packet(s) based on a first of the pair of encryption/decryption keystreams. In addition, a second layer encryption/decryption is performed by encrypting/decrypting selected control information (e.g., information related to encoding/decoding the PD(s)) in the PIC packet(s) based on a second of the pair of encryption/decryption keystreams. By performing multilayered encryption/decryption on the PIC packet(s), it is possible to defend against malicious attacks in single-channel device-to-device communication without compromising such key performance indicators (KPIs) as complexity, latency, power consumption, and footprint.

Claims20

Dependent claims

A method for secure device-to-device communication comprising:

generating a first encryption/decryption keystream and at least one second encryption/decryption keystream based on a selected cipher;
generating a pulsed-index communication (PIC) data comprising a first number of data bits and a second number of identification bits;
encrypting the PIC data based on the first encryption/decryption keystream to generate an encrypted PIC data (EPD);
encoding the EPD to generate at least one encoded and encrypted PIC data (EEPD) in association with at least one flag and at least one number-of-indices (NOI);
encrypting the at least one flag and the at least one NOI based on the at least one second encryption/decryption keystream to generate at least one encrypted flag (EFLAG) and at least one encrypted NOI (ENOI), respectively;
constructing a PIC packet comprising the at least one EFLAG, the at least one ENOI, and the at least one EEPD;
and
transmitting the PIC packet.

5 more elements

A non-transitory computer-readable medium (CRM) comprising software with instructions configured to:

generate a first encryption/decryption keystream and at least one second encryption/decryption keystream based on a selected cipher;
generate a pulsed-index communication (PIC) data comprising a first number of data bits and a second number of identification bits;
encrypt the PIC data based on the first encryption/decryption keystream to generate an encrypted PIC data (EPD);
encode the EPD to generate at least one encoded and encrypted PIC data (EEPD) in association with at least one flag and at least one number-of-indices (NOI);
encrypt the at least one flag and the at least one NOI based on the at least one second encryption/decryption keystream to generate at least one encrypted flag (EFLAG) and at least one encrypted NOI (ENOI), respectively;
construct a PIC packet comprising the at least one EFLAG, the at least one ENOI, and the at least one EEPD;
and
transmit the PIC packet.

5 more elements

Dependencies are inferred from the claim text.

Method for secure device-to-device communication using multilayered cyphers

Life of this patent

Method for secure device-to-device communication using multilayered cyphers

Life of this patent

Abstract

Claims20