Aron Wussler
Software Engineer
Summary
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RockstarAron Wussler is a software engineer with seven years of experience specializing in applied cryptography and backend development. As a Cryptography Engineer at ProtonMail and active open-source contributor, he has made notable contributions to widely used OpenPGP projects such as openpgpjs and ProtonMail/gopenpgp. His work ranges from low-level cryptographic changes—like exposing ephemeral ECDH secrets and refining key-derived functions—to higher-level improvements in testing, refactoring, and documentation. He blends a pragmatic focus on code quality and testability with a deep understanding of secure key handling and interoperability. Notably, he often identifies subtle API and naming issues that improve the long-term maintainability of crypto libraries. He brings a developer-first approach to shipping secure, auditable cryptographic tooling.
8 years of coding experience
Github Skills (10)
unit-testing10
ecdhe10
elliptic-curve-cryptography10
javascript10
openpgp10
go10
javascripts10
ecdh10
cryptography10
testing10
Programming languages (11)
Github contributions (5)
ProtonMail/gopenpgp
May 2019 - Jan 2023
A high-level OpenPGP library
Role in this project:
Backend Developer
Backend DeveloperContributions:34 releases, 94 reviews, 284 commits in 3 years 9 months
Contributions summary:Aron primarily focused on improving the testing framework and refactoring the existing tests in the `protonmail/gopenpgp` repository. The user moved large constants into separate files and fixed various test issues, demonstrating a strong understanding of the codebase. Additionally, the user added new tests, removing duplicated signing functions. Further contributions included changes to attachment and session key functionalities.
openpgpgnupghigh-levelpgpopenpgp-library
openpgpjs/openpgpjs
Jan 2019 - Aug 2022
OpenPGP implementation for JavaScript
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 8 commits, 3 PRs in 3 years 8 months
Contributions summary:Aron primarily focused on enhancing the cryptographic functionalities within the `openpgpjs` repository. Their contributions involved modifying the elliptic curve Diffie-Hellman (ECDH) module, specifically making ephemeral secrets accessible. These changes included modifying the existing key generation methods and improving the handling of key-derived functions. They also fixed documentation and refactored code for better naming conventions, and implemented comprehensive tests.
javascripttypescriptopenpgp
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