PATENT CLAIM ANALYSIS

Application Number: 15768576
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-01
Patent Classification: ["705", "500000"]

Abstract:
The present invention relates to an accredited certificate issuance system based on a block chain and an accredited certificate issuance method based on block chain using the same, and an accredited certificate authentication system based on a block chain and an accredited certificate authentication method based on a block chain using the same, which disenable a leak of a personal key for accredited certification by autonomously generating, storing and managing the personal key for accredited certification by means of a random number generator mounted in a terminal in which it is impossible to install a function or an additional program for physically accessing and reading the inside of a system; enable a public key for accredited certification, which requires maintenance, to be stored and managed in a block chain of electronic wallets mounted in block chain retention servers via a peer-to-peer (P2P) network-based distribution database, not in a server operated by an accredited certificate authority (CA), and thus incur almost no costs for maintenance by, if hacking occurs, preventing occurrence of costs for establishing an accredited certificate issuance system having an advanced security system interworking therewith so as to maximally prevent hacking, and costs for operating and maintaining the established accredited certificate issuance system; and can perform an accredited certification process even if ActiveX is not established.

Claim (Index 30):
A system for authenticating a public certificate based on a blockchain, comprising:\n an information security device including a decryption engine of the information security device and a memory information security device, wherein the memory of the information security device stores a private key for the public certificate; a user device requesting an authentication of the public certificate based on the blockchain; an authentication-requesting server, which includes its random number generator and its encryption engine, acquiring user identification information on a user from an identification information DB of the authentication-requesting server, acquiring user-identifying hash information for comparison by hashing the user identification information, and transmitting the acquired user-identifying hash information for comparison and the user identification information, in response to a request for the authentication from the user device; a certificate-managing server receiving the user-identifying hash information for comparison and the user identification information from the authentication-requesting server, and transmitting a transaction ID for user verification and a transaction ID for storing a public key for the public certificate, which are retrieved from a keyword DB by referring to the user identification information, to thereby request a download of transaction information for storing the public key and transaction information for user verification; and blockchain nodes (i) authorizing a cryptocurrency payment by verifying transmitted transaction information on the cryptocurrency payment, (ii) storing in the blockchain (ii-1) the transaction information on the cryptocurrency payment, (ii-2) the transaction information for storing the public key, which includes the public key, and (ii-3) transaction information for user verification which contains user-verifying hash information, and (iii) transmitting to the certificate-managing server the transaction information for storing the public key and the transaction information for user verification retrieved from the blockchain by respectively referring to the transaction ID for storing the public key and the transaction ID for user verification received from the certificate-managing server; wherein the certificate-managing server acquires the public key and user-verifying hash information for authentication from the transaction information for storing the public key and the transaction information for user verification transmitted from the blockchain nodes, acquires user-verifying hash information for comparison by hashing the transmitted user-identifying hash information for comparison and a transaction ID for storing the public key in the keyword DB, and transmits to the authentication-requesting server the acquired public key and the user identification information if a hash value of the acquired user-verifying hash information for authentication corresponds to a hash value of the user-verifying hash information for comparison, wherein the authentication-requesting server, if the public key and the user identification information are received, confirms a protocol for Internet communications by the user device, and if the protocol is HTTP, instructs its random number generator to generate a random session key, instructs its encryption engine to acquire an encrypted random session key by encrypting the random session key using the public key included in the validity confirming signal, and relays the encrypted random session key to the information security device by way of the user device, and wherein the information security device instructs the decryption engine of the information security device to acquire the random session key by decrypting the encrypted random session key using the private key in the memory of the information security device and transmits the random session key to the user device, to thereby complete the authentication of the user.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 2.16667
- Patent Class: 705.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15898842', '15863128', '15331019', '15419182', '15449902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.1124587554103279
- 35 USC 102 Novelty (BERT): 0.5184592794098253
- Combined Prediction Score: 0.1530588078102777
- Mean Citation Score: 304.629276
- Max Citation Score: 315.49084
- Similarity Product: 243.86422776381016

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test