api.SubtleCrypto.deriveKey - <SUMMARIZE THE PROBLEM>

[ChromaLTS]

What type of issue is this?

Incorrect support data (example: BrowserX says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

X25519 is no longer supported in Deno. Consider adding a message to inform users to import from Node's implementation instead of std. Deno recently updated and launched its std library, which is advertised as the default library for the included features. This std is based on Chrome's implementation and includes their SubtleCrypto, which doesn't support X25519. So this is one case where updating results in progressive technological advancement - Just backwards.... :c

What browsers does this problem apply to, if applicable?

Deno

What did you expect to see?

I expected the result of using the example from MDN's page on SubtleCrypto under X25519 - specifically for the deriveBits function - to be something like:

Keys changed
234,189,125,157,50,51,232,127,158,251…[16 bytes total] (Alice secret)
234,189,125,157,50,51,232,127,158,251…[16 bytes total] (Bob secret)

Did you test this? If so, how?

I tested it in:

• Deno --version
  deno 1.46.3 (stable, release, x86_64-pc-windows-msvc)
  v8 12.9.202.5-rusty
  typescript 5.5.2

• The browser. I used Chrome; it failed and gave the same error as Deno. Then I enabled the flag "#enable-experimental-web-platform-features" and restarted, then it gave the result I provided in my answer for "What did you expect to see".

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

The compatability chart with missing or incorrect information:
https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/deriveBits#browser_compatibility

The example i used in all environments:
https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/deriveBits#result

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/deriveKey

MDN metadata

MDN page report details

• Query: api.SubtleCrypto.deriveKey
• Report started: 2024-10-01T09:16:58.484Z

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