crypto/md5 — validation proof

Go’s own crypto/md5 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/md5 row in Validated Test Packages.

Validated 2026-08-04 · converter f6e9c0cf0

11 matched · 1 disclosed — Go 1.23.1, windows/amd64, converted package src/core/crypto/md5.

Verdicts

Test go test go2cs
TestAllocations pass fail (disclosed)
TestBlockGeneric pass pass
TestGolden pass pass
TestGoldenMarshal pass pass
TestLarge pass pass
TestLargeHashes pass pass
TestMD5Hash pass pass
TestMD5Hash/OutOfBoundsRead pass pass
TestMD5Hash/ResetState pass pass
TestMD5Hash/StatefulWrite pass pass
TestMD5Hash/SumAppend pass pass
TestMD5Hash/WriteWithoutError pass pass

Disclosed divergences

A disclosed divergence is a specific Go assertion the managed CLR provably cannot satisfy — not a skipped test and not a tolerance. Each one is pinned by exact failure signature in the package’s hand-owned go2cs_test_disclosures.json; a disclosed test that fails any other way is still a hard mismatch.

Test Class Pinned reason
TestAllocations alloc-profile want-zero AllocsPerRun assert: Sum copies the digest (d0 := *d) so the caller can keep writing, and that copy must deep-copy the digest’s [4]uint32 state and [64]byte block — golib’s array is a struct over a heap T[], so the copy is two managed allocations where Go's is stack-resident; Write/Sum also allocate through the hash.Hash interface surface

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.