RESOLVED FIXED275170
Consider using simd base64 encode/decode from simdutf 
https://bugs.webkit.org/show_bug.cgi?id=275170
Summary Consider using simd base64 encode/decode from simdutf
Sam Weinig
Reported 2024-06-05 10:53:28 PDT
The simdutf project, https://github.com/simdutf/simdutf, in addition to having highly optimized unicode conversions has highly optimized/tested/fuzzed base64 encode/decode implementations, importantly including support for WHATWG-forgiving base64 -> https://github.com/simdutf/simdutf?tab=readme-ov-file#base64. simdutf is licensed under a compatible Apache-2.0 / MIT licenses, so we should consider an import. (our current implementation is entirely scalar)
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Radar WebKit Bug Importer
Comment 1 2024-06-12 10:54:13 PDT
<rdar://problem/129694621>
Yusuke Suzuki
Comment 2 2024-07-22 20:36:29 PDT
Yes, I'm working on this right now.
Yusuke Suzuki
Comment 3 2024-07-22 20:37:07 PDT
We already adopted simdutf for Uint8Array toBase64. I will apply fromBase64 part too (having some patch already).
Sam Weinig
Comment 4 2025-03-29 08:57:50 PDT
Looks like Yusuke did this in https://commits.webkit.org/281035@main and https://commits.webkit.org/281899@main! Thanks!.
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