Yash Goyal

Cryptography underpins almost every modern digital interaction. As mobile devices increasingly act as personal security vaults, managing cryptographic keys in a secure yet user-friendly manner has become crucial. This article explores techniques, challenges, and solutions for edDSA (Ed25519/Curve25519) key management on iOS and Android, with a special look at BabyJubJub for zero-knowledge proofs (ZKPs). Table of Contents Introduction Key Concepts in iOS & Android - iOS: Keychain & Secure Enclave - Andro...

Introduction As a lead blockchain developer at Smashverse in early 2023, I faced an unexpected turn of events. The aftermath of the FTX exchange crash led to funding issues at my company. This challenge, however, opened a door to an extraordinary journey through the world of hackathons — a path marked by innovation, learning, and global friendships. The Inception: Ethglobal FVM Spacewarp My first international online hackathon, Ethglobal FVM Spacewarp, was a foray into a new world. Teaming up with Christ...

BIP39 Seed Phrase / Mnemonic Generator in Python Seed phrases are sentences that encode some binary data; that data is used to seed the generation of private keys for the crypto wallets, hence the name "seed phrases." BIP39 is a standard for generating these seed phases. In BIP39, 2048 words are chosen that can be used in these seed phases and are easy to distinguish, easy to remember, and sorted for efficient searching. The length of the seed phrases can be 12, 15, 18, 21, or 24 words. The generation of...