WebCrypto PQ algorithms and Digital Credentials issuance

Web Platform2026-09-10

Chromium advanced two Intent to Ship filings on blink-dev, covering post-quantum and modern algorithms in WebCrypto plus issuance support for the Digital Credentials API. Both proposals cleared reviewer LGTMs after technical discussion.

Algorithm updates in WebCrypto

Chromium filed an Intent to Ship for ML-KEM, ML-DSA, ChaCha20-Poly1305, and X-Wing in the Web Cryptography API, taken from a WICG draft. Spec-status questions were resolved and the thread collected LGTMs. The change brings post-quantum key encapsulation and signatures plus a widely used AEAD into the standard browser crypto surface.

Digital Credentials API issuance support

Chromium posted an Intent to Ship for issuance support in the Digital Credentials API after an origin trial. The proposal received three LGTMs. Issuance extends the API beyond presentation, letting sites mint credentials in supporting browsers.