PATENT CLAIM ANALYSIS

Application Number: 16247876
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-08
Patent Classification: ["380", "028000"]

Abstract:
Minimizing information leakage during modular exponentiation using random masks is disclosed Minimizing information leakage during elliptic curve point multiplication is disclosed with windowing by using point randomization is disclosed. Elliptic curve point multiplication with windowing calculates and stores multiple points based on the point being multiplied and then processes multiple bits of the multiplier at a time is also disclosed.

Claim (Index 1):
A method for minimizing information leakage during modular exponentiation using random masks where b is the base, e is the exponent, and m is the modulus, the method comprising:\n generating at least four random numbers for masking, where the random numbers are r1, r2, r3, and r4, wherein the at least four random numbers are of any bit width and r2 is non-zero; computing a randomized base (br), where br=b+m*r3; computing a randomized modulus (mr), where mr=m*r2; computing a first randomized exponent (e1), where e1=e+m*r1\u2212r4; computing a second randomized exponent (e2), where e2=r4\u2212r1; determining a first modular exponentiation, y1, with the randomized base, the randomized modulus, and the first randomized exponent, y1=br{circumflex over (\u2003)}e1 mod mr; determining a second modular exponentiation, y2 with the randomized base, randomized modulus, and the second randomized exponent, y2=br{circumflex over (\u2003)}e2 mod mr; and wherein the modulus is prime.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 99.0
- Lexical Diversity: 1.55
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15184653', '13927634', '15392197', '11870102', '11782168']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3899533452079097
- 35 USC 102 Novelty (BERT): 0.4644250003934687
- Combined Prediction Score: 0.3974005107264656
- Mean Citation Score: 176.82522
- Max Citation Score: 227.40079
- Similarity Product: 216.29235630918976

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test