Processing method and apparatus of encrypted call, terminal, and KMC

Abstract

The invention provides a processing method and apparatus of an encrypted call, a terminal, and a KMC. The problems that in the conventional encryption call technology, malicious usage of the telephone of an owner cannot be prevented, and the voice of the owner is imitated for an encrypted call so that the privacy of the owner is leaked are solved. The method includes steps: acquiring biological feature information used for identifying the identity of a user and encrypting the biological feature information when a first terminal detects an encrypted call request initiated by the user, and obtaining encrypted biological feature information; sending a first key negotiation signaling carrying the encrypted biological feature information to the key management center (KMC); receiving a first negotiation success response message returned by the KMC after successful comparison of the decrypted encryption biological feature information and prestored biological feature information corresponding to the first terminal, wherein the first negotiation success response message carries a session key distributed for the session between the first terminal and a second terminal by the KMC; and performing an encrypted call 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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