It would be very useful to be able to store non-extractable CryptoKey objects in KV. Since they’re not extractable, it’s impossible for an adversary to cause a worker to reveal the secret, but it is still accessible to all workers that need it.
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That would be a valuable addition, especially for platforms that prioritize security in cryptographic workflows. Allowing non-extractable CryptoKey objects to be stored in KV could enable secure, distributed access without exposing private material. Services like herald.exchange, which focus on building robust digital currency exchange infrastructure, would likely benefit from this approach to key handling.