Encryption device, communication system and method of exchanging encrypted data in communication network

A technology of encryption device and communication device, which can be applied to secure communication device, encryption device with shift register/memory, digital transmission system, etc., and can solve problems such as damage to message privacy.

Pending Publication Date: 2021-03-19
LINXENS HLDG SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the key is compromised or cracked, the privacy of the written message is compromised, and the parties involved in the affected communication may not be aware of this

Method used

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  • Encryption device, communication system and method of exchanging encrypted data in communication network
  • Encryption device, communication system and method of exchanging encrypted data in communication network
  • Encryption device, communication system and method of exchanging encrypted data in communication network

Examples

Experimental program
Comparison scheme
Effect test

no. 4 example

[0125] According to the fourth embodiment of the present invention, the encryption apparatus 100, 100A of the first embodiment can be implemented such that the variable key generator 120 is configured to generate a plurality of key pairs, each key pair having a public key and a private key key.

no. 5 example

[0126] According to the fifth embodiment of the present invention, the encryption apparatus 100, 100A of the fourth embodiment can be implemented such that a plurality of key pairs have identification quantities assigned to the plurality of key pairs so that each key pair can be uniquely identified. to identify. Furthermore, the communication interface 110 may be configured to send the public keys of the plurality of key pairs together with the assigned identification amount to at least one other encryption device 100B, 100C.

[0127] According to the sixth embodiment of the present invention, the encryption apparatus 100, 100A of the fourth embodiment can be implemented such that the communication interface 110 is further configured to use at least one first subset and the second subset of the generated key pairs Only the public key is sent to at least one other encryption device 100B, 100C. Here, the second subset and at least one first subset are different from each other....

no. 9 example

[0130] According to the ninth embodiment of the present invention, the encryption apparatus 100, 100A of one of the first to eighth embodiments can be implemented such that the variable key generator 120 is configured to continuously Generating at least one key, the predefined condition is defined based on: a predetermined number of plaintexts received at the communication interface 110, and / or a predefined number of plaintexts received at the communication interface 110 between two consecutive plaintexts A time interval, and / or a predefined time elapsed since the memory 130 stored the key, and / or a predefined number of keys used by the encryption device 100, 100A and / or a predefined number of times the key was used.

[0131] According to the tenth embodiment of the present invention, the communication system 200 includes: the encryption device 100, 100A of one of the first to ninth embodiments; and an associated communication device 210, 210A, which is used by the user to Com...

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PUM

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Abstract

The present disclosure provides in various aspects an encryption device (100), a communication system and a method of exchanging encrypted data in such a network. In accordance with some illustrativeembodiments of an aspect, the encryption device (100) comprises a communication interface (110), a variable key generator (120) configured to generate at least two keys, a memory (130) configured to store keys that are either generated by the variable key generator (120) and / or received at the communication interface (110), and an encryption / decryption component (140) configured to successively use keys stored in the memory (130) for encrypting a plaintext received at the communication interface (110) and for decrypting a ciphertext received at the communication interface (110), wherein the communication interface (110) is configured to communicate with an associated separate communication device which is used by a user of the encryption device (100) for communicating in a communication network.

Description

technical field [0001] The present invention relates to an encryption device, a communication system and a method for exchanging encrypted data in a communication network. In particular, the invention relates to individual and / or external cryptographic systems, and to secure communications between communication systems in a communication network. Background technique [0002] Data security in electronic communications is not only of critical importance to many organizations, particularly in regulated industries, government services and industries where electronic communications may contain sensitive proprietary or confidential information, but also in, for example, the execution of financial transactions or electronic Mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange, inventory management systems and automated data collection systems, etc.) are also vital in our daily lives. Al...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/08H04L9/06
CPCH04L9/06H04L9/0861H04L63/0428H04L63/062H04L63/068H04L9/14H04L9/0897H04L9/10H04L9/12H04L9/0825H04L9/0894
Inventor S·雷德克
Owner LINXENS HLDG SAS
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