IPSec VPN Multi Link Security Gateway (DLL-C372-G5 series) supports wired and wireless access methods to achieve multi link communication, with wired methods implemented through wired dedicated lines and wireless methods implemented through multiple 4G/5G public networks.

In terms of line interfaces, the device comes with three mobile public network air ports and one 100 Base-T network WAN port. All three mobile public network air ports support China Unicom, China Mobile, and China Telecom. The front panel has three pluggable SIM card slots. The device comes with 6 wireless interfaces, which can be directly plugged into the antenna or led out through an RF cable.

In terms of business interfaces, the device comes with one 100 Base-T network LAN port, one USB interface, and one RS232 serial port.

The IPSec VPN multi link security gateway adopts an ARM based CPU chip, paired with a 100Mbps network card, integrates SJK19140 MINI PCI-E password card, and is equipped with the Linux operating system. Supports SM2 algorithm, SM3 algorithm, SM4 algorithm, and true random number generation algorithm. Supports tunnel working mode, ESP encapsulation protocol, NAT traversal and other functions. It can provide security services such as identification, access control, data confidentiality, data integrity, data source authentication, and prohibition of denial.

IPSec VPN multi link security gateway can be widely used in government, large and medium-sized enterprises and institutions, and can be widely used in remote work, mobile communication and other scenarios.

2. Product features:

(1) Multi link communication. IPSec VPN multi link security gateway supports multi-channel 4G/5G communication and wired broadband communication to achieve the goal of multi link communication.

(2) Security services. The security services used by IPSec VPN multi link security gateway consist of the following parts:

Access control: Control user access to resources through authorization

Data source verification: Authenticate the sender’s identity to ensure that the communication counterpart is locally trusted.

Confidentiality: Using encrypted data packets instead of plaintext data packets for transmission in the network improves data security.

Integrity: Verify whether network data has been modified to ensure that the number of arrivals has not been tampered with.

E-resistant replay: prevents duplicate reception of malicious or redundant IP packets, which can cause harm to oneself.

(3) Password algorithm. Implement password algorithms for SM2, SM3, SM4, and true random number generation through password cards.

(4) Key management. Support the management of device keys, work keys, and session keys, and support functions such as key generation, key import, key clearing, key update, key recovery, key backup, and key destruction.

(5) Tunnel working mode. Support ESP tunnel working mode.

(6) NAT traversal. Support NAT traversal, allowing IPSec data streams to traverse NAT devices in the network. NAT traversal consists of three parts: first, determine whether the communication parties support NAT traversal; second, detect the presence of NAT on the path between the two parties; and finally, decide how to use UDP encapsulation to handle NAT traversal.

(7) Log management. IPSec VPN multi link security gateway integrates comprehensive logging services, providing various types of logs such as information logs, alarm logs, error logs, and debugging logs, including operation behavior, security events, abnormal events, etc.

(8) Decentralized management. The IPSec VPN multi link security gateway has set up administrators and achieved decentralized management of system administrators, security administrators, and audit administrators.

(9) Security mechanism. The security mechanism of IPSec VPN multi link security gateway mainly includes main mode, encryption algorithm, and data transmission. The three aspects constitute a comprehensive security mechanism, enabling data to be securely protected from negotiation processes to data transmission.

(10) Device self check. The IPSec VPN multi link security gateway performs a self check every time it is started. Self inspection is divided into pre operation self testing and conditional self testing. The content of pre run self-test includes software integrity verification and password card detection.

This is a solution device designed to enhance secure transmission for mobile phones and portable terminals. The terminal device connects to the mobile companion via WIFI, allowing data to be securely transmitted to a multi-link security server through two 4G networks.

2. Functional Features:

(1) Integrated with multiple links, it can connect to mobile phones via WIFI;

(2) Data granularization encryption and decryption, with parallel transmission over multiple links;

(3) Supports central mode and identity authentication;

(4) Provides startup prompt for mobile client companion devices;

(5) Supports secure transmission channels for portable computers, PADs, and desktop computers connecting to the device via WIFI.

This device is based on the company’s independently developed ML-FSNT ? Core technology, a device developed to solve problems such as insufficient single link bandwidth and unreliable data transmission networks encountered in business transmission scenarios. The device provides a maximum of three link aggregation, with a link aggregation rate of 0.7. Support end-to-end usage patterns to address decentralization issues.

2. Functional features:

(1) Communication networking, supporting multi link networking function, fully covering mainstream domestic operator networks; Support 3G/4G full frequency band and multi-channel 4G/5G aggregation transmission;

(2) Security and confidentiality, supporting encryption of business data, ionization processing of confidential data, multiple parallel transmission of ciphertext examples, and supporting terminal network identity authentication function;

(3) Data transmission, supporting point-to-point or point-to-point server data transmission within the network (formats: documents, images, sound, video, etc.);

(4) Decentralization, supporting end-to-end mode, lightweight and convenient network structure.

The multi link secure router adopts the company’s independently developed data granulation technology, link load balancing technology, and link bandwidth aggregation technology to achieve business data encryption granulation and parallel transmission of ciphertext particles over multiple links, improving the security of data transmission and the available bandwidth for users.

2. Functional features:

(1) Connect to the business computer through a USB port to facilitate device management by the business computer;

(2) The business computer redirects the business interface to the multi link secure network transmission component through USB to LAN;

(3) Provide services such as business data encryption, ciphertext data granulation, ciphertext particle multi link parallel transmission, and virtual private network construction with multi link security series products and multi link security transmission servers;

(4) Support dynamic password verification (business ports are only enabled after password verification is correct);

(5) USB peripheral blacklist mechanism.

The multi link 5G ultra high definition video live streaming system equipment is an access end product developed by Lianshan Technology based on the self-developed ml-FSNT * 1 core technology, targeting the secure networking transmission of news and broadcasting industries. It is the only product in the MLSCS-XTM series equipment of Lianshan Technology that supports 5G networking and 4K video encoding and decoding transmission. (Note * 1: Multi link Fragmented Secure Networking and Transmission.)

Relying on the 4G/5G communication network of operators, adopting “particle based” secure communication technology and multi link aggregation technology, we have developed a “multi link 5G ultra high definition video live streaming system” suitable for the news and broadcasting industry, meeting the needs of users for 4K high-definition video encoding and transmission, as well as 5G high bandwidth file transmission.

The multi link 5G ultra high definition video live streaming system equipment can support access to no less than 3 links simultaneously, which can be any combination of wired, 4G/5G. (Note * 3: The device comes standard with 1 5G communication module, 2 3G/4G communication modules, and 1 wired module)

2. Product features:

The multi link 5G ultra high definition video live streaming system equipment is a secure access terminal device designed with ml-FSNTTM technology as the core and customized portable computer as the platform. The product provides the following functions.

2.1 Communication networking

1) Support multi link networking function, support different operator networks, and multi-channel 4G/5G aggregation transmission;

2) Supports the full frequency range of 5G/4G/3G, fully covering mainstream domestic operator networks.

2.2 Security and Confidentiality

1) Support business data encryption, ciphertext data fragmentation, and multi link parallel transmission of ciphertext fragments;

2) Support terminal network identity authentication function.

2.3 Video Encoding and Decoding

1) Supports real-time encoding and decoding of 4K videos, and supports H.264/H.265 encoding standards;

2) The video resolution, bit rate, and frame rate are adjustable to ensure clear and smooth video quality;

3) Support video source devices that connect to HDMI and SDI interfaces, and support HDMI interface video output.

2.4 Audio Encoding and Decoding

1) Support video embedded audio encoding and decoding;

2) Support lip sync function; Realize real-time synchronization of audio and video.

2.5 Data Transmission

1) Support data transmission from any point to point or point to server within the network;

2) Supports multiple data formats (document, image, sound, video, etc.).

The “Defender” Sun Moon Secure Portable Hard Disk (hereinafter referred to as the “Sun Moon Disk”) is an information security storage solution launched around the core technology system of “data granulation” and drawing on the ancient Chinese concept of “tiger symbols”. This system is a highly secure mobile storage device used for sensitive data protection. It encrypts user data and stores it randomly in daily and monthly disks, and uses UKey for identity authentication and key storage to achieve physical isolation between data, keys, and data fragments. Only when correctly combined can user data be recovered, effectively solving security issues such as theft and loss of sensitive data during the outbound process.

2. Functional features:

(1) Data fragmentation, using our unique particle technology to process user data into particles, resulting in data fragments that are stored separately in daily and monthly disks.

(2) Hardware encryption, using hardware encryption chips to encrypt data processing;

(3) Split and carry, structurally divided into three parts, only when the three parts are correctly combined can the data be decrypted.

The “Defender” data security disk (hereinafter referred to as the security disk) is an information security storage solution launched around the core technology system of “data granulation”, drawing on the ancient Chinese concept of “tiger symbols”. This system is used to protect the security of PC data, including local encryption system software and mobile encryption devices. It adopts a unique data “particle” technology to “particle” split the files in the computer, and randomly store them in the computer hard disk and external encryption disk. This product uses national commercial cryptographic chips.

2. Functional features:

(1) Mainly used to ensure the security of data stored in computer memory;

(2) The system is equipped with high-strength national security authentication encryption and provides complete log audit functions for data content;

(3) From the perspective of product structure, it can be divided into two parts: local encrypted disk system software and mobile encrypted disk devices;

(4) When in use, store the files separately on the computer’s hard drive and removable key drive according to a custom ratio;

(5) The system automatically establishes a “My Secret Disk” partition, and the data is placed in that partition, automatically achieving “data granularity” protection.

A multi link tablet computer is designed based on DLL fusion networking and particle technology, with the goal of mobile command. It integrates various functions such as visual scheduling command and control, voice communication, video transmission, data and text transmission, etc. to achieve secure networking and reliable transmission in civilian 5G/4G mobile public network, wired, wifi and other environments.

2. Main functions

(1) Equipped with 3G/4G or 5G multi link function;

(2) Equipped with optional WiFi communication function;

(3) Equipped with commercial encryption function, high-end products reserve J encryption interface;

(4) Capable of voice and video communication;

(5) Equipped with instant messaging function;

(6) Equipped with video conferencing function;

(7) Equipped with situational monitoring function.

3. Main technical indicators

(1) Power supply requirements:

The power supply adopts DC power supply (ripple voltage not exceeding 300mV, voltage stability not exceeding 0.5%)

Power supply voltage: 15 ± 1V;

Working current: rated current not exceeding 4A, output peak current not exceeding 5A;

(2) Performance requirements:

Operating system: Window or Galaxy Kirin;

B processor: no less than four cores, with a main frequency of no less than 1.8GHz;

C Memory capacity: not less than 4GB;

D Hard disk capacity: not less than 500GB solid-state drive;

E-tablet display screen: supports multi touch control;

F Camera: Supports front and rear cameras, with a minimum resolution of 5 million pixels;

G communication link: Two 4G/5G channels, one wired and one wifi.

H antenna type: built-in patch antenna.

I Battery endurance: At room temperature of 25 ℃, the continuous working time shall not be less than 4 hours;

“Tiger?seal”?secure?mobile?hard?disk?is?a?mobile?secure?storage?product?that?protects?the?security?of?users’?static?data.

This?product?focuses?on?our?company’s?core?technology?system?of?“data?particle”?and?draws?lessons?from?the?concept?of?“tiger?symbol”?in?ancient?China?to?launch?an?information?security?storage?solution.

When?data?enters?the?device,?use?the?default?algorithm?to?encrypt?the?data,?and?then?use?the?special?algorithm?independently?designed?by?our?company?to?distribute?the?ciphertext?data,

Two?independent?data?fragments?are?obtained?and?stored?in?different?physical?carriers?respectively,

This?improves?the?security?of?static?data?from?the?two-dimensional?plane?of?“algorithm-key”?to?the?three-dimensional?structure?of?“algorithm-key-data?Fragment”,?solves?the?security?problem?from?the?data?source,?and?reaches?the?level?of?data?intrinsic?security.

2.?Features:

The?system?is?divided?into?control?operation?software?and?storage?control?carrier.

The?control?software?is?responsible?for?user?permission?control?and?basic?operations;?The?storage?control?carrier?is?responsible?for?core?functions?such?as?data?encryption?and?decryption,?data?dispersion,?and?sub-media?storage.

Sensitive?data?such?as?user?passwords?and?keys?are?stored?in?security?chips?certified?by?the?state?password?administration.

The multi link mobile vehicle station is a small voice intercom command system designed based on our company’s service telephone terminal. This product is aimed at the civilian market and adopts commercial encryption. It is embedded in the radio position of the car cockpit. The purpose is to achieve secure networking and reliable transmission in civilian 3G/4G network environments. At the same time, a digital service intercom function is also reserved for emergency communication in the absence of a public network environment.

2. Main functions:

(1) Equipped with 2-way 3G/4G;

(2) Equipped with commercial encryption function;

(3) Support multi link fragmented parallel transmission of data and voice services;

(4) Support public network voice calls, voice intercom, broadcasting, and multicast;

(5) Support digital intercom function;

(6) Equipped with Beidou positioning.

3. Main technical indicators:

(1) Under 3G/4G public network:

Communication frequency: 800MHz~960MHz; 1700MHz to 2700MHz;

The maximum number of groups that can be added to each terminal is 6;

C supports fragmented parallel transmission links: 2.

(2) Digital service intercom:

Communication frequency: U-band;

B Maximum transmission power: 5W;

Channel C: 16.

(3) Other indicators:

Power supply: 12V/24V compatible;

Speaker B: Car speaker.