A method for implementing umts mobile terminal circuit domain voice encryption communication technology
A technology of voice encryption and communication technology, applied in telephone communication and key distribution, it can solve problems such as the inability to guarantee the end-to-end security of communication and the inability to meet the needs of secure communication, and achieve the effect of system control.
Active Publication Date: 2019-07-23
HANGZHOU BYTE INFORMATION TECH CO LTD
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[0002] In a mobile communication network, signal transmission passes through multiple links such as mobile terminals, air interfaces, wireless base stations, relay transmission, and mobile switching infrastructure. Currently, the security architecture of mobile communication networks only supports air interface encryption (wireless channel encryption). Guarantee the communication security of voice signals between mobile terminals and base stations. The relay transmission between base stations is in plain text, so that the end-to-end security of communication (that is, the security of the information source) cannot be guaranteed, and it cannot meet the special needs of the government, police, and military. Departmental Secure Communications Needs
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[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0027] A method for implementing circuit-domain voice encryption communication technology for UMTS mobile terminals includes the following steps:
[0028] S1. System hardware architecture design: The supported terminal system hardware architecture adopts AP+CP (application processor + communication baseband processor) structure, because CP (communication baseband processor) runs independent mobile TEE (trusted execution environment) operation The system is controllable, trustworthy and safe. In order to ensure credibility and safety in the storage and processing of voice information, TPM (Trusted Platform Module)...
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The invention discloses a UMTS mobile terminal circuit domain voice encryption communication technology realization method. The UMTS mobile terminal circuit domain voice encryption communication technology realization method comprises the following steps of S1, a system hardware configuration design; S2, a system software configuration design; S3, protocol signaling level realization; S4, network mode control realization; S5, voice encryption communication flow realization; S6, terminal encrypted conversation calling flow; and S7, a terminal called flow. In the design, a control level and a data level are borne in a voice channel band; secret key negotiation and voice frame encryption and decryption logic is completed in a TPM hardware unit and a TEE execution environment so that safety of a secret key, an algorithm and a system execution environment is ensured and safety of voice communication during source storage, processing and transmission is ensured too; and a voice flow is ensured not to carry out any voice coding and decoding conversion during air interface relay transmission and voice tone quality is guaranteed.
Description
Technical field [0001] The invention relates to the technical field of UMTS mobile terminals, in particular to a method for implementing the circuit domain voice encryption communication technology of UMTS mobile terminals. Background technique [0002] In the mobile communication network, the signal transmission passes through multiple links such as mobile terminal, air interface, wireless base station, relay transmission and mobile switching infrastructure. The current mobile communication network security architecture only supports air interface encryption (wireless channel encryption). To ensure the communication security of the voice signal between the mobile terminal and the base station, the relay transmission between the base stations is in plain text, so that the end-to-end security of the communication (that is, the security of the source) cannot be guaranteed, and it cannot meet the special requirements of the government, police, and military. The department’s secure c...
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IPC IPC(8): H04L9/08H04L29/06H04M7/00H04W12/02
CPCH04L9/0877H04L63/0428H04M7/006H04W12/02
Inventor 毛伟信
Owner HANGZHOU BYTE INFORMATION TECH CO LTD