Add watermarking module (src/wmk) - #11160

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ytliu8464 wants to merge 45 commits into

The-OpenROAD-Project:masterfrom

ytliu8464:wmk-module

Commits on Aug 17, 2026

wmk: add routing watermark module
ytliu8464
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bbedd93
wmk: add verify_watermark for the placement and CTS stages
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0435e65
wmk: clang-format
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7e12629
wmk: add README and regression tests
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004b1ea
wmk: expose the module to Python
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163d6aa
wmk: ignore test output
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2679102
wmk: require a key, and test that the router is actually biased
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0854d21
wmk: unit-test the PRF, and say what the multiplier really gates on
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019a7dc
wmk: ignore in-source CMake scratch
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38628ab
wmk: specify the claim file format
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edf9153
wmk: embed and verify all three stages in OpenROAD
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0ceae33
wmk: test all three stages, in both directions
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752fedd
wmk: fix the routing null to the design, not the key
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bf99efe
wmk: do not let a moved cell cut the partner search short
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8c53c45
wmk: unit-test the two hashes the new stages added
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b82b082
wmk: bring the README into the house format
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305a838
wmk: register the passfail tests correctly for Bazel, and use shared test data
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a4d6696
wmk: let the key choose which objects are marked, not just their values
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0c460ea
wmk: generate the secret, and decide ownership on two stages of three
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71a9dcc
wmk: say when the routing carrier does not exist
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2ee2a7c
wmk: say when the clock skew guard cannot be enforced
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bb56575
wmk: give the clock skew guard the budget the scheme intends
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bdbed57
wmk: take drive limits from the library, retry for capacity, undo marks that cost timing
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c5773d8
wmk: let the post-embed timing check actually see the timing
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5d485d2
wmk: make the Python surface usable
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ee10113
wmk: build under Bazel
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c6b4935
wmk: rewrite the README in the house register
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7519ded
wmk: list the module in the documentation index
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d4fa5cb
wmk: say what the nonce is
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3d43e42
wmk: call it the secret key throughout the README
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4e5bfc8
wmk: refuse a claim file that does not say what it committed to
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a2afdf0
wmk: clear the clang-tidy findings
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93b97c8
wmk: call it the secret key in the sources too
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9451da3
wmk: write the public key parameters on their own
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d665a23
wmk: satisfy the Tcl lint and drop two stray files
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693fa4f

Commits on Aug 21, 2026

wmk: satisfy the Bazel format and man-page checks
ytliu8464
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8d7697d

Commits on Aug 26, 2026

wmk: clang-format
maliberty
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b37ed8a
wmk: clang-format Main.cc
maliberty
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1cae381

Commits on Aug 28, 2026

wmk: read the layer a via moves the wire to
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c3d2d61
wmk: keep a moved clock sink on its own clock
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138ff20
wmk: use the odb and boost calls that already say this
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1d8d1e0
wmk: give the wirelength bound in microns
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c6b3cda
wmk: name the routing multiplier for what it is
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32eb5f7
wmk: type the tile identifier as the bytes it is
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8feec0c
wmk: find the near pairs by grid, not by sweeping every pair
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cdabfe2