WO2022125039A1 - A multi-part and encrypted message transmission system - Google Patents

A multi-part and encrypted message transmission system Download PDF

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Publication number
WO2022125039A1
WO2022125039A1 PCT/TR2021/051361 TR2021051361W WO2022125039A1 WO 2022125039 A1 WO2022125039 A1 WO 2022125039A1 TR 2021051361 W TR2021051361 W TR 2021051361W WO 2022125039 A1 WO2022125039 A1 WO 2022125039A1
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WO
WIPO (PCT)
Prior art keywords
client device
message
server
messaging
over
Prior art date
Application number
PCT/TR2021/051361
Other languages
French (fr)
Inventor
Hayati TANRIVERDI
Mesut DAG
Original Assignee
Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi filed Critical Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi
Publication of WO2022125039A1 publication Critical patent/WO2022125039A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/009—Security arrangements; Authentication; Protecting privacy or anonymity specially adapted for networks, e.g. wireless sensor networks, ad-hoc networks, RFID networks or cloud networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present invention relates to a system for realizing messagings between devices of mobile device users over communication channels such as Bluetooth or Wi-Fi Direct in a direct, multi-part and encrypted way.
  • US2019246269A1 discloses a secure communications system for providing an encrypted file transfer between two mobile devices.
  • the said invention encrypts a file to be transferred between two devices, by means of AES-256 that can be decrypted only by an application; can attach the encrypted file to an e-mail or message and transmit this e-mail directly via WIFI-direct or Bluetooth.
  • An objective of the present invention is to realize a system for realizing messagings between devices of mobile device users over communication channels such as Bluetooth or Wi-Fi Direct in a direct, multi-part and encrypted way.
  • Another objective of the present invention is to realize a system for increasing the size of limited file transmission and avoiding loss of package on direct communication channels such as Bluetooth and Wi-Fi Direct, by dividing messages into parts.
  • Figure 1 is a schematic view of the inventive multi-part and encrypted message transmission system
  • the inventive system (1) for enabling users to establish partial and encrypted communication with each other over direct communication channels comprises: at least one first client device (2) which is configured to run at least one application on it and to establish communication with any electronic device over a direct communication channel; at least one second client device (3) which is configured to run at least one application on it and to establish communication with any electronic device and/or at least the first client device (2) over a direct communication channel; at least one messaging application (4) which is configured to be run on the first client device (2) and the second client device (3); to enable users to realize messaging at least with other users by different message contents such as text, voice and image and to ensure that encrypted messaging is realized between users; and at least one server (5) which is configured to establish communication with the first client device (2) and the second client device (3) and to realize data exchange with the messaging application (4); to ensure that the messagings between the first client device (2) and the second client device (3) are realized over direct communication channels; to receive the message that is created to be transmitted from the messaging application (4) being run on the first client device (2) to the messaging application (4) being located on the
  • the first client device (2) and the second client device (3) are configured to run the messaging application (4) on them and to ensure that the messaging applications (4) realize data exchange between each other over at least one direct communication channel.
  • the first client device (2) and the second client device (3) are configured to establish communication with at least one of direct communication channels such as Bluetooth, Wi Fi Direct NFC.
  • the first client device (2) and the second client device (3) are devices such as mobile phone, smartphone, tablet, computer, desktop computer configured to run at least one messaging application (4) on them and to realize data exchange with direct communication channels.
  • the messaging application (4) is configured to be run on the first client device (2) and the second client device (3); to transmit the messages, that are requested to be transmitted by realizing data exchange with the server (5), to the server (5) in order to ensure that the said messages are encrypted according to the device to transmit these; and to make the received messages accessible by analyzing them.
  • the messaging application (4) shares the content with the server (5) so as to encrypt the message to be transmitted.
  • the server (5) is configured to determine client devices that can communicate with a direct communication channel; to obtain public key cryptography of the said client devices; and to use public key cryptography at the messaging stage.
  • the server (5) is configured to determine the maximum messaging packet size to be realized from the messaging applications (4) between the client devices and to check the size of the packets received from the messaging application (4).
  • the server (5) is configured to divide a packet into parts in the event that a message over a maximum messaging packet size is received and to transmit the message to a client device in parts.
  • the server (5) is configured to decide on the number of parts that a message will be divided into by dividing the size of a file requested to be transmitted by a maximum messaging packet size.
  • the server (5) is configured to create a transaction ID JSON message for each part that a message is divided into and to encrypt JSON message contents by public key cryptography of a receiving client device. Thereby, a message content -that is divided into parts- is combined in the client device whereto it is transmitted and then it becomes readable, accessible upon being analysed by the client device.
  • the server (5) is configured to ensure that a message -that will be sent by using public key cryptography- is sent upon being encrypted by a public password such as public key and it is only opened by a public password of a receiving client device such as public key.
  • the server (5) is configured to comprise at least one of version information of a message in a JSON message content; ID information of a message; number of total packets that are divided into parts; information about which of the packets -that are divided into parts- the message includes; timestamp information of the sent message; information of message content, sender ID, receiver ID and message type.
  • the server (5) is configured to change version information in the event that a new parameter is added to a message content.
  • the first client device (2) upon public key cryptography of client devices which request messaging on a direct communication channel are obtained by the server (5), the first client device (2) makes a request to send a message -that is created by it- to the second client device (3) from the messaging application (4) and the content is shared with the server (5).
  • a message content -that can be text, voice, video- to be sent is preferably indicated in the first client device (2); the server (5) converts the received message content into data as base 64 and if the created data size is greater than the communication size determined for direct transmission channel, each part is divided into smaller parts and then encrypted by public key cryptography such that it can be opened by the client device to receive the message.
  • the messaging application which runs in the client device receiving the message- can read, listen or watch the message upon accessing it by using public key cryptography.
  • inventive system (1) messaging is reliably realized with persons broadcasting Bluetooth or Wifi Direct, by a plurality of packet over the same second client device (3) around by opening Bluetooth or Wifi Direct.
  • the messaging application of the client device receiving the message combines the parts and then creates the message.

Abstract

The present invention relates to a system (1) for realizing messagings between devices of mobile device users over communication channels such as Bluetooth or Wi-Fi Direct in a direct, multi-part and encrypted way.

Description

A MULTI-PART AND ENCRYPTED MESSAGE TRANSMISSION SYSTEM
DESCRIPTION
Technical Field
The present invention relates to a system for realizing messagings between devices of mobile device users over communication channels such as Bluetooth or Wi-Fi Direct in a direct, multi-part and encrypted way.
Background of the Invention
With advancement of technology, people’s need for messaging is increasing with each passing day. Development of Internet technology and mobile device applications can be cited as a reason for this. The fact that people want to meet different people and expand their social circle is another reason. People use various applications on their mobile devices in order to make a circle of friends. Messaging applications are the most frequently used one among these applications. Due to the fact that people having the same application downloaded in their mobile devices and being located in a position close to each other are not included in each other’s directory or are unaware of using the same application, they cannot communicate. Therefore, there is need for solutions which will enable mobile device users to message with each other and to get social by communicating over near field communication such as Bluetooth, WiFi Direct without coming up against message size and security.
The United States patent document no. US2019246269A1 discloses a secure communications system for providing an encrypted file transfer between two mobile devices. The said invention encrypts a file to be transferred between two devices, by means of AES-256 that can be decrypted only by an application; can attach the encrypted file to an e-mail or message and transmit this e-mail directly via WIFI-direct or Bluetooth.
Summary of the Invention
An objective of the present invention is to realize a system for realizing messagings between devices of mobile device users over communication channels such as Bluetooth or Wi-Fi Direct in a direct, multi-part and encrypted way.
Another objective of the present invention is to realize a system for increasing the size of limited file transmission and avoiding loss of package on direct communication channels such as Bluetooth and Wi-Fi Direct, by dividing messages into parts.
Detailed Description of the Invention
“A Multi-Part and Encrypted Message Transmission System” realized to fulfil the objectives of the present invention is shown in the figure attached, in which:
Figure 1 is a schematic view of the inventive multi-part and encrypted message transmission system
The components illustrated in the figure are individually numbered, where the numbers refer to the following:
1. System
2. First client device
3. Second client device
4. Messaging application 5. Server
The inventive system (1) for enabling users to establish partial and encrypted communication with each other over direct communication channels comprises: at least one first client device (2) which is configured to run at least one application on it and to establish communication with any electronic device over a direct communication channel; at least one second client device (3) which is configured to run at least one application on it and to establish communication with any electronic device and/or at least the first client device (2) over a direct communication channel; at least one messaging application (4) which is configured to be run on the first client device (2) and the second client device (3); to enable users to realize messaging at least with other users by different message contents such as text, voice and image and to ensure that encrypted messaging is realized between users; and at least one server (5) which is configured to establish communication with the first client device (2) and the second client device (3) and to realize data exchange with the messaging application (4); to ensure that the messagings between the first client device (2) and the second client device (3) are realized over direct communication channels; to receive the message that is created to be transmitted from the messaging application (4) being run on the first client device (2) to the messaging application (4) being located on the second client device (3); to determine the size of the message to be transmitted; to check whether the message is over the limit that is pre-determined for the message size of the direct communication channel or not; if the message size is not over the limit, to transmit the message to the second client device (3) by encrypting it such that it can be read by the second client device (3); if the message size is over the limit, to divide the message into parts; to encrypt the divided messages such that they can be read by the second client device (3); to transmit the divided and encrypted messages to the second client device (3).
In the inventive system (1), the first client device (2) and the second client device (3) are configured to run the messaging application (4) on them and to ensure that the messaging applications (4) realize data exchange between each other over at least one direct communication channel. The first client device (2) and the second client device (3) are configured to establish communication with at least one of direct communication channels such as Bluetooth, Wi Fi Direct NFC. The first client device (2) and the second client device (3) are devices such as mobile phone, smartphone, tablet, computer, desktop computer configured to run at least one messaging application (4) on them and to realize data exchange with direct communication channels.
In the inventive system (1), the messaging application (4) is configured to be run on the first client device (2) and the second client device (3); to transmit the messages, that are requested to be transmitted by realizing data exchange with the server (5), to the server (5) in order to ensure that the said messages are encrypted according to the device to transmit these; and to make the received messages accessible by analyzing them. The messaging application (4) shares the content with the server (5) so as to encrypt the message to be transmitted.
In the inventive system (1), the server (5) is configured to determine client devices that can communicate with a direct communication channel; to obtain public key cryptography of the said client devices; and to use public key cryptography at the messaging stage. The server (5) is configured to determine the maximum messaging packet size to be realized from the messaging applications (4) between the client devices and to check the size of the packets received from the messaging application (4). The server (5) is configured to divide a packet into parts in the event that a message over a maximum messaging packet size is received and to transmit the message to a client device in parts. The server (5) is configured to decide on the number of parts that a message will be divided into by dividing the size of a file requested to be transmitted by a maximum messaging packet size. The server (5) is configured to create a transaction ID JSON message for each part that a message is divided into and to encrypt JSON message contents by public key cryptography of a receiving client device. Thereby, a message content -that is divided into parts- is combined in the client device whereto it is transmitted and then it becomes readable, accessible upon being analysed by the client device. The server (5) is configured to ensure that a message -that will be sent by using public key cryptography- is sent upon being encrypted by a public password such as public key and it is only opened by a public password of a receiving client device such as public key.
In the inventive system (1), the server (5) is configured to comprise at least one of version information of a message in a JSON message content; ID information of a message; number of total packets that are divided into parts; information about which of the packets -that are divided into parts- the message includes; timestamp information of the sent message; information of message content, sender ID, receiver ID and message type. The server (5) is configured to change version information in the event that a new parameter is added to a message content.
In the inventive system (1), upon public key cryptography of client devices which request messaging on a direct communication channel are obtained by the server (5), the first client device (2) makes a request to send a message -that is created by it- to the second client device (3) from the messaging application (4) and the content is shared with the server (5). A message content -that can be text, voice, video- to be sent is preferably indicated in the first client device (2); the server (5) converts the received message content into data as base 64 and if the created data size is greater than the communication size determined for direct transmission channel, each part is divided into smaller parts and then encrypted by public key cryptography such that it can be opened by the client device to receive the message. The messaging application -which runs in the client device receiving the message- can read, listen or watch the message upon accessing it by using public key cryptography.
With the inventive system (1), messaging is reliably realized with persons broadcasting Bluetooth or Wifi Direct, by a plurality of packet over the same second client device (3) around by opening Bluetooth or Wifi Direct. The messaging application of the client device receiving the message, combines the parts and then creates the message. Within these basic concepts; it is possible to develop various embodiments of the inventive multi-part and encrypted message transmission system (1); the invention cannot be limited to examples disclosed herein and it is essentially according to claims.

Claims

1. A system (1) for enabling users to establish partial and encrypted communication with each other over direct communication channels; characterized by: at least one first client device (2) which is configured to run at least one application on it and to establish communication with any electronic device over a direct communication channel; at least one second client device (3) which is configured to run at least one application on it and to establish communication with any electronic device and/or at least the first client device (2) over a direct communication channel; at least one messaging application (4) which is configured to be run on the first client device (2) and the second client device (3); to enable users to realize messaging at least with other users by different message contents such as text, voice and image and to ensure that encrypted messaging is realized between users; and at least one server (5) which is configured to establish communication with the first client device (2) and the second client device (3) and to realize data exchange with the messaging application (4); to ensure that the messagings between the first client device (2) and the second client device (3) are realized over direct communication channels; to receive the message that is created to be transmitted from the messaging application (4) being run on the first client device (2) to the messaging application (4) being located on the second client device (3); to determine the size of the message to be transmitted; to check whether the message is over the limit that is pre-determined for the message size of the direct communication channel or not; if the message size is not over the limit, to transmit the message to the second client device (3) by encrypting it such that it can be read by the second client device (3); if the message size is over the limit, to divide the message into parts; to encrypt the divided messages such that they can be read by the second client device (3); to transmit the divided and encrypted messages to the second client device (3).
2. A system (1) according to Claim 1; characterized by the first client device (2) and the second client device (3) which are configured to run the messaging application (4) on them and to ensure that the messaging applications (4) realize data exchange between each other over at least one direct communication channel
3. A system (1) according to Claim 1 or 2; characterized by the first client device (2) and the second client device (3) which are configured to establish communication with at least one of direct communication channels such as Bluetooth, Wi Fi Direct NFC.
4. A system (1) according to any of the preceding claims; characterized by the first client device (2) and the second client device (3) which are devices such as mobile phone, smartphone, tablet, computer, desktop computer configured to run at least one messaging application (4) on them and to realize data exchange with direct communication channels.
5. A system (1) according to any of the preceding claims; characterized by the messaging application (4) which is configured to be run on the first client device (2) and the second client device (3); to transmit the messages, that are requested to be transmitted by realizing data exchange with the server (5), to the server (5) in order to ensure that the said messages are encrypted according to the device to transmit these; and to make the received messages accessible by analyzing them.
8
6. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to determine client devices that can communicate with a direct communication channel; to obtain public key cryptography of the said client devices; and to use public key cryptography at the messaging stage.
7. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to determine the maximum messaging packet size to be realized from the messaging applications (4) between the client devices and to check the size of the packets received from the messaging application (4).
8. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to divide a packet into parts in the event that a message over a maximum messaging packet size is received and to transmit the message to a client device in parts.
9. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to decide on the number of parts that a message will be divided into by dividing the size of a file requested to be transmitted by a maximum messaging packet size.
10. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to create a transaction ID JSON message for each part that a message is divided into and to encrypt JSON message contents by public key cryptography of a receiving client device.
11. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to ensure that a message -that will be sent by using public key cryptography- is sent upon being encrypted by a public
9 password such as public key and it is only opened by a public password of a receiving client device such as public key.
12. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to comprise at least one of version information of a message in a JSON message content; ID information of a message; number of total packets that are divided into parts; information about which of the packets - that are divided into parts- the message includes; timestamp information of the sent message; information of message content, sender ID, receiver ID and message type.
13. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to change version information in the event that a new parameter is added to a message content.
10
PCT/TR2021/051361 2020-12-07 2021-12-06 A multi-part and encrypted message transmission system WO2022125039A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/19882 2020-12-07
TR2020/19882A TR202019882A2 (en) 2020-12-07 2020-12-07 A MULTIPLE AND ENCRYPTED MESSAGE TRANSMISSION SYSTEM

Publications (1)

Publication Number Publication Date
WO2022125039A1 true WO2022125039A1 (en) 2022-06-16

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PCT/TR2021/051361 WO2022125039A1 (en) 2020-12-07 2021-12-06 A multi-part and encrypted message transmission system

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TR (1) TR202019882A2 (en)
WO (1) WO2022125039A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095649A1 (en) * 2015-12-03 2017-06-08 Microsoft Technology Licensing, Llc Protocol fallback during call signaling
WO2020117559A1 (en) * 2018-12-06 2020-06-11 Visa International Service Association Secured extended range application data exchange

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095649A1 (en) * 2015-12-03 2017-06-08 Microsoft Technology Licensing, Llc Protocol fallback during call signaling
WO2020117559A1 (en) * 2018-12-06 2020-06-11 Visa International Service Association Secured extended range application data exchange

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LESCISIN, M. ET AL.: "Ad-hoc messaging infrastructure for peer-to-peer communication", PEER-TO-PEER NETW. APPL., vol. 12, 2019, pages 60 - 73, XP036675386, Retrieved from the Internet <URL:https://doi.org/10.1007/s12083-017-0628-7> DOI: 10.1007/s12083-017-0628-7 *
SIGHOLT OYSTEIN; TOLAY BESMIR; JIANGY YUMING: "Keeping Connected When the Mobile Social Network Goes Offline", 2019 INTERNATIONAL CONFERENCE ON WIRELESS AND MOBILE COMPUTING, NETWORKING AND COMMUNICATIONS (WIMOB), IEEE, 21 October 2019 (2019-10-21), pages 59 - 64, XP033646736, DOI: 10.1109/WiMOB.2019.8923549 *

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