Shamirs Secret Sharing In Go: Secure Data Splitting And Reconstructing
Shamir's Secret Sharing splits a secret into shares, requiring a threshold to reconstruct. Implemented in Go using github.com/hashicorp/vault/shamir. Securely store private keys, distribute credentials, and enable decentralized access control.
Introduction Ever watched a movie where a nuclear launch code is split among multiple people, ensuring no single person has full control? Well, that’s Shamir’s Secret Sharing (SSS) in action! 🕵️♂️✨ A while back, I built a CLI app using Shamir’s Secret Sharing in Go, allowing secure file sharing. The flow was simple: upload a file, define the number of shares and threshold, and assign them to specific people through the app. To reconstruct the file, shareholders had to collect enough shares and input them into the CLI. If the threshold was met with correct shares, the encrypted file was reco...