Pass a public key bit length when creating a threshold key generator #11

Merged
pdyraga merged 16 commits from master into master 2018-08-10 06:50:47 -04:00
Showing only changes of commit 1d535dc740 - Show all commits
+22 -30
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@@ -14,35 +14,35 @@ var MockGenerateSafePrimes = func() (*big.Int, *big.Int, error) {
func TestCreateThresholdKeyGenerator(t *testing.T) {
var tests = map[string]struct {
keyLength int
publicKeyBitLength int
totalNumberOfDecryptionServers int
threshold int
expectedError error
}{
"generator successfully created for 20 bit key length": {
keyLength: 20,
publicKeyBitLength: 20,
totalNumberOfDecryptionServers: 6,
threshold: 5,
},
"generator can't be created for 19 bit key length": {
keyLength: 19,
publicKeyBitLength: 19,
totalNumberOfDecryptionServers: 4,
threshold: 3,
expectedError: errors.New("Public key bit length must be an even number"),
},
"generator successfully created for 18 bit key length": {
keyLength: 18,
publicKeyBitLength: 18,
totalNumberOfDecryptionServers: 4,
threshold: 3,
},
"generator can't be created for 17 bit key length": {
keyLength: 17,
publicKeyBitLength: 17,
totalNumberOfDecryptionServers: 4,
threshold: 3,
expectedError: errors.New("Public key bit length must be an even number"),
},
"generator can't be created for 16 bit key length": {
keyLength: 16,
publicKeyBitLength: 16,
totalNumberOfDecryptionServers: 4,
threshold: 3,
expectedError: errors.New("Public key bit length must be at least 18 bits"),
@@ -52,7 +52,7 @@ func TestCreateThresholdKeyGenerator(t *testing.T) {
for testName, test := range tests {
t.Run(testName, func(t *testing.T) {
gen, err := GetThresholdKeyGenerator(
test.keyLength,
test.publicKeyBitLength,
test.totalNumberOfDecryptionServers,
test.threshold,
rand.Reader,
@@ -73,10 +73,10 @@ func TestCreateThresholdKeyGenerator(t *testing.T) {
)
}
if test.keyLength != gen.PublicKeyBitLength {
if test.publicKeyBitLength != gen.PublicKeyBitLength {
t.Fatalf(
"Unexpected public key length\nExpected: %v\nActual: %v",
test.keyLength,
test.publicKeyBitLength,
gen.PublicKeyBitLength,
)
}
@@ -103,30 +103,22 @@ func TestCreateThresholdKeyGenerator(t *testing.T) {
func TestGenerateNumbersOfCorrectBitLength(t *testing.T) {
var tests = map[string]struct {
keyLength int
expectedPrimeLength int
expectedModulusLength int
publicKeyLength int
expectedPrimeLength int
}{
"key bit length = 32, prime bit length = 16, modulus bit length = 32": {
keyLength: 32,
expectedPrimeLength: 16,
expectedModulusLength: 32,
"public key bit length = 32, prime bit length = 16": {
publicKeyLength: 32,
expectedPrimeLength: 16,
},
"key bit length = 64, prime bit length = 32, modulus bit length = 64": {
keyLength: 64,
expectedPrimeLength: 32,
expectedModulusLength: 64,
},
"key bit length = 128, prime bit length = 64, modulus bit length = 128": {
keyLength: 128,
expectedPrimeLength: 64,
expectedModulusLength: 128,
"public key bit length = 64, prime bit length = 32": {
publicKeyLength: 64,
expectedPrimeLength: 32,
},
}
for testName, test := range tests {
t.Run(testName, func(t *testing.T) {
gen, err := GetThresholdKeyGenerator(test.keyLength, 10, 6, rand.Reader)
gen, err := GetThresholdKeyGenerator(test.publicKeyLength, 10, 6, rand.Reader)
if err != nil {
t.Fatal(err)
}
@@ -139,7 +131,7 @@ func TestGenerateNumbersOfCorrectBitLength(t *testing.T) {
if gen.p.BitLen() != test.expectedPrimeLength {
t.Fatalf(
"Unexpected prime bit length\nExpected %v\n Actual %v",
test.expectedModulusLength,
test.expectedPrimeLength,
gen.p.BitLen(),
)
}
@@ -147,15 +139,15 @@ func TestGenerateNumbersOfCorrectBitLength(t *testing.T) {
if gen.q.BitLen() != test.expectedPrimeLength {
t.Fatalf(
"Unexpected prime bit length\nExpected %v\n Actual %v",
test.expectedModulusLength,
test.expectedPrimeLength,
gen.q.BitLen(),
)
}
if gen.n.BitLen() != test.expectedModulusLength {
if gen.n.BitLen() != test.publicKeyLength {
t.Fatalf(
"Unexpected modulus bit length\nExpected %v\n Actual %v",
test.expectedModulusLength,
test.publicKeyLength,
gen.n.BitLen(),
)
}