[Webkit-unassigned] [Bug 276394] New: The subtleCrypto.deriveBits doesn't handle 'null' values correctly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=276394

            Bug ID: 276394
           Summary: The  subtleCrypto.deriveBits doesn't handle 'null'
                    values correctly
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jfernandez at igalia.com

There was a discussion in the issue #322 [1] about the lack of a proper way to handle null or omitted values for the deriveBits's length argument, given how it's currently defined in the IDL. There was a proposal in issue #329 [2] to define the 'length' argument as optional, and defaulting to 'null'. 

The PR#345 [3] has been merged recently to fix this inconsistency in the Web Cryptography API specification, that lead to a few interoperability issues in the deriveBits operation of several algorithms (ECDH, HKDF, PBKDF2 and X25519). 

[1] https://github.com/w3c/webcrypto/issues/322
[2] https://github.com/w3c/webcrypto/issues/329

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