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Fillipe Souza

PROFILE

Fillipe Souza

Fillipe Souza developed and integrated advanced composite scaling techniques for the CKKS homomorphic encryption scheme in the openfheorg/openfhe-development repository. Over four months, he engineered new modes for parameter generation, bootstrapping, and modulus selection, focusing on improving precision, efficiency, and production reliability. His work involved C++ and CMake, leveraging deep knowledge of number theory, RNS arithmetic, and cryptography to implement robust error handling, compatibility checks, and comprehensive unit testing. By refining prime selection and scaling factor logic, Fillipe enhanced the flexibility and stability of CKKS workflows, delivering clear examples and documentation to support both developer adoption and real-world encrypted computation.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

6Total
Bugs
0
Commits
6
Features
4
Lines of code
6,723
Activity Months4

Work History

April 2025

2 Commits • 1 Features

Apr 1, 2025

Month: 2025-04 — Consolidated and shipped robust improvements to CKKS RNS composite scaling in OpenFHE, with a focus on reliability, test coverage, and developer/user workflow enhancements.

March 2025

2 Commits • 1 Features

Mar 1, 2025

Concise monthly summary for 2025-03 focusing on CKKS RNS Composite Scaling for Bootstrapping within the openfheorg/openfhe-development repo. Emphasis on feature delivery, test coverage, and resulting business value.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for openfhe-development focused on delivering CKKS enhancements and stabilizing the math pipeline for composite prime moduli. This iteration emphasizes practical value for users by enabling more flexible modulus configurations, robust scaling factor handling, and clearer examples for real-valued encrypted computations.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025: Delivered a new Composite Scaling Technique Mode for CKKS in the openfhe-development repo, including a usage example and full integration into library parameter generation and evaluation logic. Introduced compatibility checks and error handling to support the new mode, improving robustness. This work enhances CKKS flexibility and performance for production workloads and provides clear guidance for users.

Activity

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Quality Metrics

Correctness90.0%
Maintainability85.0%
Architecture88.4%
Performance76.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakeMakefile

Technical Skills

Algorithm OptimizationBootstrappingC++ DevelopmentCKKS SchemeCode RefactoringComposite ScalingCryptographyHomomorphic EncryptionNumber TheoryParameter GenerationParameter TuningRNS ArithmeticScheme ImplementationSoftware DevelopmentUnit Testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

openfheorg/openfhe-development

Jan 2025 Apr 2025
4 Months active

Languages Used

C++MakefileCMake

Technical Skills

CKKS SchemeHomomorphic EncryptionParameter GenerationScheme ImplementationUnit TestingAlgorithm Optimization

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