2results about How to "Prevent eavesdropping" patented technology

The invention provides a robust secure transmission and identification method for anti-distillation based on multi-teacher comparison, and belongs to the technical field of radio signal automatic modulation and identification. The sending end performs key-driven disturbance filtering processing on the wireless signal to be transmitted based on the shared key, generates an encrypted signal and transmits the encrypted signal; the receiving end performs inverse disturbance reconstruction on the received encrypted signal based on the shared key to obtain a decrypted signal; constructing a multi-teacher distillation system, wherein the multi-teacher distillation system comprises a plurality of teacher models and a student model; performing combined distillation training on the student model based on the output of the teacher model and the student model and the middle layer characteristics; the combined distillation training comprises output distillation and characteristic comparison distillation; and dynamically weighting a plurality of loss items generated in the multi-teacher distillation process through an adaptive loss weight adjustment mechanism based on meta-learning to obtain a modulation identification result. The identification rate of illegal receivers is effectively reduced, and the performance of legal receiving ends under interference is improved.

The application discloses a kind of based on unified port's SIP and RTP tunnel encryption forwarding method and system.The method is cooperated by tunnel client deployed in client side and tunnel server side of server side, including: based on unified port, establishing encrypted communication tunnel between the two;Tunnel client receives SIP signaling, modifies media connection information in it, and then sends to server side through tunnel encryption, and is forwarded to SIP server by server side;Tunnel client receives RTP media stream, and then sends to server side through tunnel encryption after additional header containing forwarding destination information is encapsulated, and is forwarded to SIP server according to header information by server side.The application tunnels and encrypts transmission of SIP signaling and RTP media stream through single port, effectively avoids network protocol ban, greatly simplifies firewall configuration, significantly improves NAT penetration success rate and communication security.