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 28):
The method of  claim 23 , further comprising:\n a step S 500  of determining whether a revoking signal which requests a revocation of the public certificate is generated; a step S 510  of determining, if the revoking signal is determined as generated, a place where the revoking signal is generated, wherein the place is selected from the user device and the certificate-managing server; a step S 520  of the user device, if the revoking signal is determined as generated at the user device, transmitting the revoking signal to the certificate-managing server; a step S 530  of the certificate-managing server instructing its transaction-processing engine to retrieve the transaction ID for user verification from the keyword DB by referring to the revoking signal, to thereby transmit the transaction ID for user verification to the blockchain nodes; a step S 540  of the blockchain nodes transmitting to the certificate-managing server the transaction information for user verification retrieved therefrom by referring to the transaction ID for user verification; a step S 550  of the certificate-managing server, if the transaction information for user verification is received, instructing the transaction-processing engine to generate transaction information for revocation and to relay the transaction information for revocation to the information security device by way of the user device, to thereby request an electronic signature, wherein the transaction information for revocation includes input data ID 3  and output data OD 3 , wherein the ID 3  has (i) transfer-guiding information which guides a transfer of a deposit cost loaded at the reserve cryptocurrency address by referring to output data OD 2 , (ii) multiple permission information for cryptocurrency containing permission for a sender or user to use the deposit cost loaded at the reserve cryptocurrency address, and (iii) a public key for cryptocurrency payment required for determining validity of the multiple permission information for cryptocurrency, wherein the OD 2  has (i) OP_RETURN information which represents that the transaction information for user verification is not a monetary transaction related to the cryptocurrency payment but a meta-transaction for recording information, (ii) user-verifying hash information for authentication, (iii) revocation-confirming information which contains transfer information including (iii-1) amount of the cost deposit corresponding to cost deposit information and (iii-2) a reserve cryptocurrency address for transfer of the cost deposit to a designated cryptocurrency address, if the transaction information for user verification is stored in the blockchain of the blockchain nodes, and wherein the OD 3  has a receiving cryptocurrency address of a receiver where the deposit cost loaded at the reserve cryptocurrency address is to be transmitted, and receiver identification information on the receiver; a step S 560  of the information security device instructing its encryption engine to electronically sign the transaction information for revocation, and relaying a result of the signing to the certificate-managing server by way of the user device; a step S 570  of the certificate-managing server transmitting to the blockchain nodes the transaction information for revocation electronically signed by the user; and a step S 580  of the blockchain nodes storing the transaction information for revocation electronically signed by the user in the blockchain.

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): 0.1122074304457277
- 35 USC 102 Novelty (BERT): 0.5247247251794236
- Combined Prediction Score: 0.1534591599190973
- Mean Citation Score: 304.629276
- Max Citation Score: 315.49084
- Similarity Product: 198.6838583800745

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