FA-15595 / Numerics / Member archive
Gf2 field multiplication: multiplier coefficient test · case 05
The exact gf2 field multiplication result violates the stated contract at multiplier coefficient test.
Case contract
Input [a,b,irreducible polynomial bitmask], nonnegative field elements; return carryless product reduced by that monic polynomial.
Why this case matters
Exact discrete arithmetic with observable algorithmic state; no floating point approximation is used.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit oracle 0 | 2 | 3 | Failed |
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