crypto/rand: batch large random reads on js

CL 463975 replaced the use of the NodeJS crypto.randomFillSync API
with a direct call to crypto.getRandomValues. This function rejects
any requests to fill a buffer larger than 65536 bytes, so we need to
batch reads larger than this size. This reuses the batching
functions used on other platforms to perform this batching.

Fixes #58145

Change-Id: Ic0acf3be7c9e994bc345d6614867c9b0c47bd26d
Reviewed-on: https://go-review.googlesource.com/c/go/+/463993
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Auto-Submit: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
1 file changed
tree: 29fdf33f1e08950080ddad66c4e1e2cdbfcdb151
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
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