PATENT CLAIM ANALYSIS

Application Number: 15970434
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["713", "180000"]

Abstract:
A method and system configured to produce a cryptographic signature on a message, under a key, at a user computer wherein the key is shared between the user computer, which stores a first key-share, and an authentication computer, which stores a second key-share and a first authentication value. The user computer encodes the message to produce a blinded message, produces the first authentication value from a user password and a secret value, and produces a second authentication value by encoding the first authentication value and a nonce. The authentication computer uses the nonce to determine if the first authentication value is correct and, if so, encodes the blinded message using the second key-share to produce a partial signature. The user computer produces a signature on the message under the key by encoding the partial signature and the message using the first key-share and an unblinding function.

Claim (Index 14):
The method as claimed in  claim 8 , wherein said signature comprises a BLS signature.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 93.0
- Lexical Diversity: 3.11765
- Patent Class: 713.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15612584', '14742237', '15478867', '14669976', '14878933']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4734656868260659
- 35 USC 102 Novelty (BERT): 0.5997422353121966
- Combined Prediction Score: 0.486093341674679
- Mean Citation Score: 455.305126
- Max Citation Score: 505.67212
- Similarity Product: 472.5109810356665

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