crypto/internal/fips140/bigmod — validation proof

Go’s own crypto/internal/fips140/bigmod test suite, converted to C# by go2cs, built against the converted standard library, run under the Go-semantics test host, and compared verdict for verdict against a clean go test -json baseline of the same sources. This page is generated by the converter from that comparison — it is the evidence behind the crypto/internal/fips140/bigmod row in Validated Test Packages.

Validated 2026-09-22 · converter c6fdbe73c

79 matched · 0 disclosed — Go 1.24.13, windows/amd64, converted package src/core/crypto/internal/fips140/bigmod.

Measured at Release (tiered JIT off), oracle go version go1.24.13 windows/amd64.

Both runtimes skip 4 of the matched tests identically.

Verdicts

Test go test go2cs
TestAddMulVVWSized pass pass
TestAddMulVVWSized/1024 pass pass
TestAddMulVVWSized/1536 pass pass
TestAddMulVVWSized/2048 pass pass
TestExp pass pass
TestExpShort pass pass
TestExpand pass pass
TestInverse pass pass
TestInverse/line_103 pass pass
TestInverse/line_107 pass pass
TestInverse/line_11 skip skip
TestInverse/line_111 pass pass
TestInverse/line_115 pass pass
TestInverse/line_15 skip skip
TestInverse/line_19 skip skip
TestInverse/line_23 pass pass
TestInverse/line_27 pass pass
TestInverse/line_31 pass pass
TestInverse/line_35 pass pass
TestInverse/line_39 pass pass
TestInverse/line_43 pass pass
TestInverse/line_47 pass pass
TestInverse/line_51 pass pass
TestInverse/line_55 pass pass
TestInverse/line_59 pass pass
TestInverse/line_63 pass pass
TestInverse/line_67 pass pass
TestInverse/line_7 skip skip
TestInverse/line_71 pass pass
TestInverse/line_75 pass pass
TestInverse/line_79 pass pass
TestInverse/line_83 pass pass
TestInverse/line_87 pass pass
TestInverse/line_91 pass pass
TestInverse/line_95 pass pass
TestInverse/line_99 pass pass
TestIs pass pass
TestMod pass pass
TestModAdd pass pass
TestModAddCommutative pass pass
TestModSub pass pass
TestModSubThenAddIdentity pass pass
TestModulusAndNatSizes pass pass
TestMontgomeryRoundtrip pass pass
TestMul pass pass
TestMul/1024 pass pass
TestMul/1536 pass pass
TestMul/2048 pass pass
TestMul/small pass pass
TestMulReductions pass pass
TestNewModulus pass pass
TestRightShift pass pass
TestRightShift/0 pass pass
TestRightShift/1 pass pass
TestRightShift/1022 pass pass
TestRightShift/1023 pass pass
TestRightShift/1024 pass pass
TestRightShift/127 pass pass
TestRightShift/128 pass pass
TestRightShift/129 pass pass
TestRightShift/2 pass pass
TestRightShift/31 pass pass
TestRightShift/32 pass pass
TestRightShift/33 pass pass
TestRightShift/63 pass pass
TestRightShift/64 pass pass
TestRightShift/65 pass pass
TestRightShift/895 pass pass
TestRightShift/896 pass pass
TestRightShift/897 pass pass
TestRightShift/959 pass pass
TestRightShift/960 pass pass
TestRightShift/961 pass pass
TestRightShift/991 pass pass
TestRightShift/992 pass pass
TestRightShift/993 pass pass
TestSetBytes pass pass
TestShiftIn pass pass
TestTrailingZeroBits pass pass

Excluded declarations

Declarations filtered from both sides of the comparison, and therefore not claimed above: Benchmark, Fuzz and Example declarations the converted host does not execute, plus any test requiring a capability the managed runtime does not provide — a testing member the host has not implemented, or a platform behavior it provably cannot reproduce. Each is named with the capability it needs.