Voice communication encryption system and encryption method thereof

Abstract

The invention discloses a voice communication encryption system and an encryption method thereof. The voice communication encryption system comprises at least two mobile intelligent communication terminals, a network client end or APP, a mobile encryption unit and a voice communication server end, wherein the network client end or the APP is arranged at the mobile intelligent communication terminal and used for voice communication, the mobile encryption unit is arranged at the mobile intelligent communication terminal and consists of a mobile identity identification module and an encryption module, the encryption module consists of at least one group of encryption units based on PKI. The encryption method comprises the following steps: when the mobile intelligent communication terminal provided with the mobile encryption unit launches or receives voice communication, the encryption unit or the network client end or the APP of the mobile intelligent communication terminal of one communication party produces a temporary session key, the temporary session key is singed by using a private key, and meanwhile, after carrying out encryption by using respective public keys of other communication parties, the voice communication after encryption is transferred to other communication parties; and after the public key of the temporary session key production party is checked and signed, other communication parties carry out decryption by using own private keys to obtain the temporary session key, so that voice encryption communication is established. The voice communication encryption system and the encryption method are capable of realizing encryption transmission of the voices and identity verification of the two communication parties, and high cost of customizing the mobile intelligent communication terminals is prevented.

Description

technical field [0001] The invention belongs to the field of voice encryption, in particular to a voice call encryption system and encryption method. Background technique [0002] At present, one method of voice encryption for mobile intelligent communication terminals is to customize the mobile intelligent communication terminal and add an encryption module to the circuit of the mobile intelligent communication terminal, so as to realize call or voice encryption. [0003] Another way is to develop a corresponding APP or related client software on the mobile intelligent communication terminal, add encryption or scrambling algorithms to the software, and conduct network-based encrypted calls through software encryption. [0004] The method of customizing the call or voice encryption completed by the mobile intelligent communication terminal requires the customization of the mobile intelligent communication terminal. On the one hand, the investment cost is high. There is a ce...

AI Technical Summary

Problems solved by technology

[0004] The method of customizing the call or voice encryption completed by the mobile intelligent communication terminal requires the customization of the mobile intelligent communication terminal. On the one hand, the investment cost is high. There is a certain degree of difficulty, basically this method is used in a dedicated or professional voice encryption environment

However, the method of encrypting voice calls on the network through a dedicated APP or related client software uses software encryption technology without any protection on the hardware, so it is easy to be cracked during actual use, and users cannot communicate directly Confirm the true identities of both parties, laying hidden dangers for user communication

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