A method, device, terminal and kmc for processing encrypted calls

Abstract

The invention provides a processing method, device, terminal and KMC for encrypted calls, which solves the problem that the existing encrypted call technology cannot prevent malicious use of the owner's phone, imitating the owner's voice for encrypted calls, and thus causing privacy leakage of the owner. The present invention includes: when the first terminal detects that the user initiates an encrypted call request, collects and encrypts biometric information used to identify the user's identity to obtain encrypted biometric information; sends the encrypted biometric information to the key management center KMC. The first key negotiation signaling of feature information; receiving the first negotiation success response message returned by the KMC after decrypting the encrypted biometric information and successfully comparing it with the pre-saved biometric information corresponding to the first terminal, the first negotiation The success response message carries the session key allocated by the KMC for the session between the first terminal and the second terminal; the encrypted conversation is performed according to the session key carried in the first negotiation success response message.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a processing method, device, terminal and KMC for an encrypted call. Background technique [0002] When the mobile terminal needs to make an encrypted call, it usually uses an encrypted call button (hard key or screen soft key) to initiate a key negotiation with the Key Management Center (KMC). After the key negotiation is completed, both the calling party and the called party enter the Voice encrypted call process, but this process cannot prevent malicious use of the owner's phone to imitate the owner's voice for encrypted calls, resulting in the leakage of the owner's privacy. Contents of the invention [0003] The purpose of the present invention is to provide a processing method, device, terminal and KMC for an encrypted call, so as to solve the problem that the existing encrypted call technology cannot prevent malicious use of the owner's phone and imitate th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a processing method, device, terminal and KMC for an encrypted call, so as to solve the problem that the existing encrypted call technology cannot prevent malicious use of the owner's phone and imitate the owner's voice for encrypted calls, thereby causing the privacy of the owner to leak

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