[release-branch.go1.12] crypto/rc4: remove false guarantees from Reset docs and deprecate it

Nothing in Go can truly guarantee a key will be gone from memory (see
#21865), so remove that claim. That makes Reset useless, because
unlike most Reset methods it doesn't restore the original value state,
so deprecate it.

Change-Id: I6bb0f7f94c7e6dd4c5ac19761bc8e5df1f9ec618
Reviewed-on: https://go-review.googlesource.com/c/162297
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit b35dacaac57b039205d9b07ea24098e2c3fcb12e)
Reviewed-on: https://go-review.googlesource.com/c/163438
1 file changed
tree: 47133f3bdeb0dac1c634947b377c274276bfe204
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. VERSION
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/
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