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chromium / chromium / src / cda55cd3e3636d301743cd60e86c939df13c11d9
commitcda55cd3e3636d301743cd60e86c939df13c11d9[log] [tgz]
authorRoger McFarlane <rogerm@chromium.org>Fri Jul 11 23:02:01 2025
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Jul 11 23:02:01 2025
tree078d21675c836fb9e7a539d0cceca79ab51b81b9
parentd7fc9b9b87bc866fecb3be4d72d2e681191e53be [diff]
Improve seed entropy validation for Limited Entropy

This CL improves the seed entropy validation in the following ways:

* Instead of allowing at most one limited layer to exist in the entire
  seed, the seed may contain at most one active limited entropy layer
  for the client's platform, channel and version.

* The cost tracker class is simplified. Instead of trying to handle
  invalid input, it marks itself as invalid.

* The unit test suite is updated to better cover the range of
  valid/invalid inputs to the randomization and to check that
  invalid arguments are not propagated to the cost tracker.

* Tests are added for several misconfiguration scenarios.

Bug: crbug.com/423890981
Bug: crbug.com/319681288
Bug: crbug.com/381417099
Bug: crbug.com/422222582
Change-Id: I1b2e3485a423341f2cc22d131d691ba2abea30ab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6652396
Commit-Queue: Roger McFarlane <rogerm@chromium.org>
Reviewed-by: Caitlin Fischer <caitlinfischer@google.com>
Cr-Commit-Position: refs/heads/main@{#1485860}
13 files changed
tree: 078d21675c836fb9e7a539d0cceca79ab51b81b9
  1. .github/
  2. agents/
  3. android_webview/
  4. apps/
  5. ash/
  6. base/
  7. build/
  8. build_overrides/
  9. buildtools/
  10. cc/
  11. chrome/
  12. chromecast/
  13. chromeos/
  14. codelabs/
  15. components/
  16. content/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia_web/
  23. gin/
  24. google_apis/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. net/
  33. pdf/
  34. ppapi/
  35. printing/
  36. remoting/
  37. rlz/
  38. sandbox/
  39. services/
  40. skia/
  41. sql/
  42. storage/
  43. styleguide/
  44. testing/
  45. third_party/
  46. tools/
  47. ui/
  48. url/
  49. webkit/
  50. clank
  51. internal
  52. ios_internal
  53. signing_keys
  54. v8
  55. .clang-format
  56. .clang-tidy
  57. .clangd
  58. .cursorignore
  59. .git-blame-ignore-revs
  60. .gitallowed
  61. .gitattributes
  62. .gitignore
  63. .gitmodules
  64. .gn
  65. .mailmap
  66. .rustfmt.toml
  67. .vpython3
  68. .yapfignore
  69. ATL_OWNERS
  70. AUTHORS
  71. BUILD.gn
  72. CODE_OF_CONDUCT.md
  73. codereview.settings
  74. CPPLINT.cfg
  75. CRYPTO_OWNERS
  76. DEPS
  77. DIR_METADATA
  78. LICENSE
  79. LICENSE.chromium_os
  80. OWNERS
  81. PRESUBMIT.py
  82. PRESUBMIT_test.py
  83. PRESUBMIT_test_mocks.py
  84. README.md
  85. SECURITY_OWNERS
  86. WATCHLISTS
README.md

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