Communication device and method using message history-based security key by means of blockchain

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11843697
APP PUB NO 20200366479A1
SERIAL NO

16649840

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure relates to technology that performs encrypted communication via a network or a bus, and a communication method using a security key between nodes connected via a network or a bus includes setting a critical cluster among multiple nodes, selecting a primary message shared between the set critical clusters, and encrypting a message using a key generated to be valid for a preset period to enable communication between the critical clusters, wherein each of the critical clusters stores the primary message for the preset period according to a same key generation scheme to generate a block, and generates and possesses a new key based on the generated block and a currently used key, so that information about a previous message and a previous key is sequentially accumulated in the new key.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SOGANG UNIVERSITY RESEARCH FOUNDATIONMAPO-GU SEOUL 121-742

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Jin Hwan Seoul, KR 45 275
Lee, Jun Ha Seoul, KR 6 8
Park, Ji Woo Seoul, KR 2 7
Park, Soo Yong Seoul, KR 15 48

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 12, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 12, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 12, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00