What are the characteristics of encrypted communication in telecommunications?

Based on China Telecom's wide-coverage, large-capacity CDMA mobile communication network and security management platform, China Telecom's encrypted communication service provides customers with security services such as end-to-end mobile phone voice communication encryption function, terminal-based personal information protection and lost mobile phone information protection through China Telecom's special mobile phone terminals specially customized for customers and built-in encryption algorithms assigned by the Commercial Cryptography Management Office of the National Cryptography Administration Commission.

Service features: 1. National commercial secret certification, voice encryption is more assured; It is the exclusive provider of encrypted voice encryption services in China and has the only certification qualification of the State Cryptography Administration.

2. End-to-end encryption, one word and one password is more secure; End-to-end full ciphertext transmission, random key, one key at a time.

3. The special mobile phone has strong functions, and the data information can be hidden; Hide profile information such as contacts and call logs for specific contacts.

4. If the mobile phone is lost, there is no need to worry, the remote command will erase it; Remotely command to erase the contacts and call logs of specific contacts stored on the phone.

1.National commercial secret-level certification, voice encryption is more assured: the only provider of secret-level voice encryption services in China, and has the only certification qualification of the State Cryptography Administration.

2.End-to-end encryption, one call and one password is more secure: end-to-end full ciphertext transmission, random key, one key for each call.

3.The dedicated phone has strong functions and can hide the profile information: hide the profile information such as the address book and call history of a specific contact.

4.If you lose your phone, you can erase it with remote command: The remote command will erase all contacts, call logs, and SMS messages stored on the phone and memory card in normal mode and security mode.

Telecom encryption is applicable to customers of communication services

Industry: Party and government organs, finance, large enterprises, scientific research institutions, real estate industry, etc.;

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Industry: Party and government organs, finance, large enterprises, scientific research institutions, real estate industry, etc.;

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Based on the CDMA mobile communication network and security management platform with wide coverage and large capacity, China Telecom's encrypted communication service provides customers with end-to-end mobile phone call encryption, personal information protection based on terminals, and mobile phone loss security protection through specially customized special mobile phone terminals with encryption algorithms assigned by the State Cryptography Administration, and commercial cryptography technology and information security technology.

1. Encrypted call function: The encrypted call function refers to the end-to-end encrypted call service that can be transferred from ordinary calls to encrypted calls and directly initiated with encrypted calls when both parties use encrypted communication terminals and open encrypted communication services.

1) Conversion of ordinary to encrypted communication refers to the establishment of an ordinary (plaintext) call between two encrypted communication service users, and then through verbal negotiation, an encrypted call is established by pressing the encrypted call button or menu on the encrypted communication terminal.

2) Direct initiation of a confidential call means that the caller selects an encrypted call when the call is initiated, initiates an encrypted call, the called party answers, and the two parties establish an encrypted call after the connection is completed.

2. Information security protection function: The information security protection function refers to the use of encrypted communication terminals, and the opening of encrypted communication services, customers can set password protection for the access rights of encrypted call contact contacts and call records stored on the mobile phone, and through the security channel between the China Telecom Key Management Center (hereinafter referred to as KMC) platform and the encrypted communication terminal, to achieve password emptying, lost mobile phone information protection and other security enhancement services.

There are two local usage modes for encrypted communication terminals:

1) Normal mode: You can initiate or accept encrypted calls, but you can't read the private information stored on the terminal;

2) Security mode: not only can you use encrypted call services, but also can read and operate the privacy information stored on the terminal, and set up encrypted contacts for ordinary contacts individually, in groups or in batches, or directly establish encrypted contacts. To enter the security mode, you need to enter the password, and the security mode entrance can be triggered by boot input, shortcut, menu switching, etc.

The privacy information includes the records of all encrypted calls in the security mode, the encrypted contact information and the related call logs (excluding the ordinary call records established by dialing a number and the encrypted contacts in the normal mode), and can be set as encrypted contacts for individual, group, or bulk contacts through the corresponding menus. The password clearing function means that when the user forgets the password to enter the security mode or enters the wrong password for 5 consecutive times, resulting in the terminal being locked, he can apply to China Telecom for password emptying, and China Telecom's KMC platform will remotely send instructions to clear the password to the default value. The lost mobile phone information protection function means that when the user loses the encrypted communication terminal, in order to prevent the leakage of privacy information in the terminal, he can apply to China Telecom for the protection of lost mobile phone information, and the China Telecom KMC platform erases the privacy information on the terminal by sending instructions remotely.