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include more tests for decaps in mlkem #88

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merged 1 commit into from
Nov 26, 2024
Merged

include more tests for decaps in mlkem #88

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41 changes: 34 additions & 7 deletions tests/test_ml_kem.py
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Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,7 @@ def generic_keygen_kat(self, ML_KEM, index):
self.assertEqual(ek, ek_kat)
self.assertEqual(dk, dk_kat)

def generic_encap_decap_kat(self, ML_KEM, index):
def generic_encap_kat(self, ML_KEM, index):
with open(
"assets/ML-KEM-encapDecap-FIPS203/internalProjection.json"
) as f:
Expand All @@ -126,6 +126,24 @@ def generic_encap_decap_kat(self, ML_KEM, index):
K_prime = ML_KEM.decaps(dk_kat, c_kat)
self.assertEqual(K_prime, k_kat)

def generic_decap_kat(self, ML_KEM, index):
with open(
"assets/ML-KEM-encapDecap-FIPS203/internalProjection.json"
) as f:
data = json.load(f)
kat_data = data["testGroups"][3 + index]["tests"]

# Parse out the decaps key
dk_hex = data["testGroups"][3 + index]["dk"]
dk_kat = bytes.fromhex(dk_hex)

# Ensure that decaps works
for test in kat_data:
c_kat = bytes.fromhex(test["c"])
k_kat = bytes.fromhex(test["k"])
K = ML_KEM.decaps(dk_kat, c_kat)
self.assertEqual(K, k_kat)

def test_ML_KEM_512_keygen(self):
self.generic_keygen_kat(ML_KEM_512, 0)

Expand All @@ -135,11 +153,20 @@ def test_ML_KEM_768_keygen(self):
def test_ML_KEM_1024_keygen(self):
self.generic_keygen_kat(ML_KEM_1024, 2)

def test_ML_KEM_512_encap_decap(self):
self.generic_encap_decap_kat(ML_KEM_512, 0)
def test_ML_KEM_512_encap(self):
self.generic_encap_kat(ML_KEM_512, 0)

def test_ML_KEM_768_encap(self):
self.generic_encap_kat(ML_KEM_768, 1)

def test_ML_KEM_1024_encap(self):
self.generic_encap_kat(ML_KEM_1024, 2)

def test_ML_KEM_512_decap(self):
self.generic_decap_kat(ML_KEM_512, 0)

def test_ML_KEM_768_encap_decap(self):
self.generic_encap_decap_kat(ML_KEM_768, 1)
def test_ML_KEM_768_decap(self):
self.generic_decap_kat(ML_KEM_768, 1)

def test_ML_KEM_1024_encap_decap(self):
self.generic_encap_decap_kat(ML_KEM_1024, 2)
def test_ML_KEM_1024_decap(self):
self.generic_decap_kat(ML_KEM_1024, 2)