US 2019/0173858 A1Published application

Message server, method for operating message server and computer-readable recording medium

AssigneeLINE Corporation

InventorsKi Bin SHIN, Jong II Won

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Abstract

One or more example embodiments include user terminals, methods, and/or computer-readable recording mediums storing computer programs, in which information encrypted or decrypted not to be decoded by a message server that controls transmission and reception of messages between one or more user terminals is not shared with the message server. One or more example embodiments include user terminals, methods, and/or computer-readable recording mediums storing computer programs, which encrypt a first message by using an encryption key, transmit the first message from a first user terminal to a second user terminal, and decrypt a second message received from the second user terminal by using the encryption key.

Claims15

Dependent claims

A message server comprising:

a memory configured to store computer-readable instructions;
and
one or more processors configured to execute the computer-readable instructions,
wherein the one or more processors are further configured to:
receive, from a first user terminal, a first message including a first attached file encrypted with a first encryption key to transmit, to a second user terminal, a second message including the first attached file encrypted with the first encryption key;
in association with the first message, receive, from the first user terminal, first data in which the first encryption key is encrypted with a first asymmetric key associated with the first user terminal and the second user terminal, to transmit the first data to the second user terminal;
receive, from the first user terminal, a third message including the first attached file encrypted with the first encryption key to transmit, to a third user terminal, a fourth message including the first attached file encrypted with the first encryption key;
and
in association with the second message, receive, from the first user terminal, second data in which the first encryption key is encrypted with a second asymmetric key associated with the first user terminal and the third user terminal and transmit the second data to the third user terminal.

6 more elements

A method for operating a message server, the operating method comprising:

receiving, from a first user terminal, a first message including a first attached file encrypted with a first encryption key transmitting, to a second user terminal, a second message including the first attached file encrypted with the first encryption key;
in association with the first message, receiving, from the first user terminal, first data in which the first encryption key is encrypted with a first asymmetric key associated with the first user terminal and the second user terminal, transmitting the first data to the second user terminal;
receiving, from the first user terminal, a third message including the first attached file encrypted with the first encryption key transmitting, to a third user terminal, a fourth message including the first attached file encrypted with the first encryption key;
and
in association with the second message, receiving, from the first user terminal, second data in which the first encryption key is encrypted with a second asymmetric key associated with the first user terminal and the third user terminal and transmitting the second data to the third user terminal.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/269,863Filed 7 Feb 2019
Priority: KR 10-2015-014949127 Oct 2015
Published: 6 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 63/0442
Wherein the data content is protected, e.g. by encrypting or encapsulating the payload: wherein the sending and receiving network entities apply…
H04L 9/0861
Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords: generation of secret information…
H04L 63/0428
For providing a confidential data exchange among entities communicating through data packet networks: wherein the data content is protected, e.g.…
H04L 63/061
For supporting key management in a packet data network: for key exchange, e.g. in peer-to-peer networks

Family

Application15/202,851Continuation in part · filed 6 Jul 2016
Application16/269,863Continuation in part
US 10,230,697 B2Related patent
US 11,063,919 B2Related patent
US 11,115,393 B2Related patent
US 2017/0118183 A1Published application
US 2019/0173858 A1This patent

From the US filing history. Foreign family members aren’t listed.

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