microsoft/msr-javascript-crypto

msrCrypto is a JavaScript Web Cryptography API polyfill. The main workflow is an application calling msrCrypto.subtle, which validates and prepares an operation, dispatches it to a worker or synchronous fallback, and returns the cryptographic result. The algorithm layer covers encryption, signatures, hashing, key derivation, and key wrapping; key management and arithmetic support these operations. The README documents the broader algorithm set; sampled excerpts confirm the API, worker dispatch, key storage, and core math mechanisms, but not every algorithm’s internal wiring.