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Firefox crypto.subtle.deriveKey ignores length parameter: known bug or implementation error?

Known Firefox issue with length parameter in deriveKey for X25519. Learn about the browser bug and workarounds.

  • #firefox-crypto-api
  • #x25519-key-derivation
  • #web-crypto-cross-browser
  • #derivekey-vs-derivebits
  • #aes-key-generation
11/11/2025, 08:53 AM