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evaluator.test.ts
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import { BatchEncoder } from '../implementation/batch-encoder'
import { CipherText } from '../implementation/cipher-text'
import { CKKSEncoder } from '../implementation/ckks-encoder'
import { Context } from '../implementation/context'
import { Decryptor } from '../implementation/decryptor'
import { EncryptionParameters } from '../implementation/encryption-parameters'
import { Encryptor } from '../implementation/encryptor'
import { GaloisKeys } from '../implementation/galois-keys'
import { KeyGenerator } from '../implementation/key-generator'
import { Modulus } from '../implementation/modulus'
import { ParmsIdType } from '../implementation/parms-id-type'
import { PlainText } from '../implementation/plain-text'
import { PublicKey } from '../implementation/public-key'
import { RelinKeys } from '../implementation/relin-keys'
import { SEALLibrary } from '../implementation/seal'
import { SecretKey } from '../implementation/secret-key'
import { Vector } from '../implementation/vector'
import SEAL from '../throws_wasm_node_umd'
let seal: SEALLibrary
let bfvContext: Context
let bfvCoeffModulus: Vector
let bfvPlainModulus: Modulus
let bfvEncParms: EncryptionParameters
let bfvBatchEncoder: BatchEncoder
let bfvKeyGenerator: KeyGenerator
let bfvSecretKey: SecretKey
let bfvPublicKey: PublicKey
let bfvRelinKeys: RelinKeys
let bfvGaloisKeys: GaloisKeys
let bfvEncryptor: Encryptor
let bfvDecryptor: Decryptor
let ckksContext: Context
let ckksCoeffModulus: Vector
let ckksEncParms: EncryptionParameters
let ckksEncoder: CKKSEncoder
let ckksKeyGenerator: KeyGenerator
let ckksSecretKey: SecretKey
let ckksPublicKey: PublicKey
let ckksRelinKeys: RelinKeys
let ckksGaloisKeys: GaloisKeys
let ckksEncryptor: Encryptor
let ckksDecryptor: Decryptor
let bgvContext: Context
let bgvCoeffModulus: Vector
let bgvPlainModulus: Modulus
let bgvEncParms: EncryptionParameters
let bgvBatchEncoder: BatchEncoder
let bgvKeyGenerator: KeyGenerator
let bgvSecretKey: SecretKey
let bgvPublicKey: PublicKey
let bgvRelinKeys: RelinKeys
let bgvGaloisKeys: GaloisKeys
let bgvEncryptor: Encryptor
let bgvDecryptor: Decryptor
let invalidCkksPlain: PlainText
let invalidCkksCipher: CipherText
beforeAll(async () => {
seal = await SEAL()
const polyModulusDegree = 4096
const bitSize = 20
bfvCoeffModulus = seal.CoeffModulus.BFVDefault(polyModulusDegree)
bfvPlainModulus = seal.PlainModulus.Batching(polyModulusDegree, bitSize)
bfvEncParms = seal.EncryptionParameters(seal.SchemeType.bfv)
bfvEncParms.setPolyModulusDegree(polyModulusDegree)
bfvEncParms.setCoeffModulus(bfvCoeffModulus)
bfvEncParms.setPlainModulus(bfvPlainModulus)
bfvContext = seal.Context(bfvEncParms)
bfvBatchEncoder = seal.BatchEncoder(bfvContext)
bfvKeyGenerator = seal.KeyGenerator(bfvContext)
bfvSecretKey = bfvKeyGenerator.secretKey()
bfvPublicKey = bfvKeyGenerator.createPublicKey()
bfvRelinKeys = bfvKeyGenerator.createRelinKeys()
bfvGaloisKeys = bfvKeyGenerator.createGaloisKeys(
Int32Array.from([1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 0])
)
bfvEncryptor = seal.Encryptor(bfvContext, bfvPublicKey)
bfvDecryptor = seal.Decryptor(bfvContext, bfvSecretKey)
bgvCoeffModulus = seal.CoeffModulus.BFVDefault(polyModulusDegree)
bgvPlainModulus = seal.PlainModulus.Batching(polyModulusDegree, bitSize)
bgvEncParms = seal.EncryptionParameters(seal.SchemeType.bgv)
bgvEncParms.setPolyModulusDegree(polyModulusDegree)
bgvEncParms.setCoeffModulus(bgvCoeffModulus)
bgvEncParms.setPlainModulus(bgvPlainModulus)
bgvContext = seal.Context(bgvEncParms)
bgvBatchEncoder = seal.BatchEncoder(bgvContext)
bgvKeyGenerator = seal.KeyGenerator(bgvContext)
bgvSecretKey = bgvKeyGenerator.secretKey()
bgvPublicKey = bgvKeyGenerator.createPublicKey()
bgvRelinKeys = bgvKeyGenerator.createRelinKeys()
bgvGaloisKeys = bgvKeyGenerator.createGaloisKeys(
Int32Array.from([1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 0])
)
bgvEncryptor = seal.Encryptor(bgvContext, bgvPublicKey)
bgvDecryptor = seal.Decryptor(bgvContext, bgvSecretKey)
ckksCoeffModulus = seal.CoeffModulus.Create(
polyModulusDegree,
Int32Array.from([46, 16, 46])
)
ckksEncParms = seal.EncryptionParameters(seal.SchemeType.ckks)
ckksEncParms.setPolyModulusDegree(polyModulusDegree)
ckksEncParms.setCoeffModulus(ckksCoeffModulus)
ckksContext = seal.Context(ckksEncParms)
ckksEncoder = seal.CKKSEncoder(ckksContext)
ckksKeyGenerator = seal.KeyGenerator(ckksContext)
ckksSecretKey = ckksKeyGenerator.secretKey()
ckksPublicKey = ckksKeyGenerator.createPublicKey()
ckksRelinKeys = ckksKeyGenerator.createRelinKeys()
ckksGaloisKeys = ckksKeyGenerator.createGaloisKeys()
ckksEncryptor = seal.Encryptor(ckksContext, ckksPublicKey)
ckksDecryptor = seal.Decryptor(ckksContext, ckksSecretKey)
const arr2 = Float64Array.from({ length: ckksEncoder.slotCount / 2 }, _ => 5)
invalidCkksPlain = ckksEncoder.encode(arr2, Math.pow(2, 20)) as PlainText
invalidCkksCipher = ckksEncryptor.encrypt(invalidCkksPlain) as CipherText
})
describe('Evaluator', () => {
test('It should be a factory', () => {
expect(seal).toHaveProperty('Evaluator')
expect(seal.Evaluator).toBeDefined()
expect(typeof seal.Evaluator.constructor).toBe('function')
expect(seal.Evaluator).toBeInstanceOf(Object)
expect(seal.Evaluator.constructor).toBe(Function)
expect(seal.Evaluator.constructor.name).toBe('Function')
})
test('It should construct an instance', () => {
const Constructor = jest.fn(seal.Evaluator)
Constructor(bfvContext)
expect(Constructor).toHaveBeenCalledWith(bfvContext)
})
test('It should fail to construct an instance', () => {
const newParms = seal.EncryptionParameters(seal.SchemeType.bfv)
newParms.setPolyModulusDegree(4096)
newParms.setCoeffModulus(
seal.CoeffModulus.BFVDefault(4096, seal.SecurityLevel.tc128)
)
const newContext = seal.Context(newParms, true, seal.SecurityLevel.tc128)
const Constructor = jest.fn(seal.Evaluator)
expect(() => Constructor(newContext)).toThrow()
expect(Constructor).toHaveBeenCalledWith(newContext)
})
test('It should have properties', () => {
const item = seal.Evaluator(bfvContext)
// Test properties
expect(item).toHaveProperty('instance')
expect(item).toHaveProperty('unsafeInject')
expect(item).toHaveProperty('delete')
expect(item).toHaveProperty('negate')
expect(item).toHaveProperty('add')
expect(item).toHaveProperty('sub')
expect(item).toHaveProperty('multiply')
expect(item).toHaveProperty('square')
expect(item).toHaveProperty('relinearize')
expect(item).toHaveProperty('cipherModSwitchToNext')
expect(item).toHaveProperty('cipherModSwitchTo')
expect(item).toHaveProperty('plainModSwitchToNext')
expect(item).toHaveProperty('plainModSwitchTo')
expect(item).toHaveProperty('rescaleToNext')
expect(item).toHaveProperty('rescaleTo')
expect(item).toHaveProperty('modReduceToNext')
expect(item).toHaveProperty('modReduceTo')
expect(item).toHaveProperty('exponentiate')
expect(item).toHaveProperty('addPlain')
expect(item).toHaveProperty('subPlain')
expect(item).toHaveProperty('multiplyPlain')
expect(item).toHaveProperty('plainTransformToNtt')
expect(item).toHaveProperty('cipherTransformToNtt')
expect(item).toHaveProperty('cipherTransformFromNtt')
expect(item).toHaveProperty('applyGalois')
expect(item).toHaveProperty('rotateRows')
expect(item).toHaveProperty('rotateColumns')
expect(item).toHaveProperty('rotateVector')
expect(item).toHaveProperty('complexConjugate')
expect(item).toHaveProperty('sumElements')
expect(item).toHaveProperty('dotProduct')
expect(item).toHaveProperty('dotProductPlain')
})
test('It should have an instance', () => {
const item = seal.Evaluator(bfvContext)
expect(item.instance).toBeDefined()
})
test('It should inject', () => {
const item = seal.Evaluator(bfvContext)
const newItem = seal.Evaluator(bfvContext)
newItem.delete()
const spyOn = jest.spyOn(newItem, 'unsafeInject')
newItem.unsafeInject(item.instance)
expect(spyOn).toHaveBeenCalledWith(item.instance)
expect(newItem.instance).toEqual(item.instance)
})
test('It should delete the old instance and inject', () => {
const item = seal.Evaluator(bfvContext)
const newItem = seal.Evaluator(bfvContext)
const spyOn = jest.spyOn(newItem, 'unsafeInject')
newItem.unsafeInject(item.instance)
expect(spyOn).toHaveBeenCalledWith(item.instance)
expect(newItem.instance).toEqual(item.instance)
})
test("It should delete it's instance", () => {
const item = seal.Evaluator(bfvContext)
item.delete()
const spyOn = jest.spyOn(item, 'delete')
item.delete()
expect(spyOn).toHaveBeenCalled()
expect(item.instance).toBeUndefined()
})
test('It should skip deleting twice', () => {
const item = seal.Evaluator(bfvContext)
const spyOn = jest.spyOn(item, 'delete')
item.delete()
expect(spyOn).toHaveBeenCalled()
expect(item.instance).toBeUndefined()
})
// Negate
test('It should fail to negate a cipher', () => {
const item = seal.Evaluator(bfvContext)
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
expect(() => item.negate(invalidCkksCipher, cipherDest)).toThrow()
expect(spyOn).toHaveBeenCalledWith(invalidCkksCipher, cipherDest)
})
test('It should negate a cipher to a destination cipher (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should negate a cipher to a destination cipher (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should negate a cipher and return a cipher result (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should negate a cipher and return a cipher result (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should negate a cipher to a destination cipher (bfv) (int64)', () => {
const item = seal.Evaluator(bfvContext)
const arr = BigInt64Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => BigInt(-i)
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decodeBigInt(result, true)
expect(decoded).toEqual(arr.map(x => BigInt(-x)))
})
test('It should negate a cipher to a destination cipher (bgv) (int64)', () => {
const item = seal.Evaluator(bgvContext)
const arr = BigInt64Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => BigInt(-i)
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decodeBigInt(result, true)
expect(decoded).toEqual(arr.map(x => BigInt(-x)))
})
test('It should negate a cipher and return a cipher result (bfv) (int64)', () => {
const item = seal.Evaluator(bfvContext)
const arr = BigInt64Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => BigInt(-i)
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decodeBigInt(result, true)
expect(decoded).toEqual(arr.map(x => BigInt(-x)))
})
test('It should negate a cipher and return a cipher result (bgv) (int64)', () => {
const item = seal.Evaluator(bgvContext)
const arr = BigInt64Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => BigInt(-i)
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decodeBigInt(result, true)
expect(decoded).toEqual(arr.map(x => BigInt(-x)))
})
test('It should negate a cipher to a destination cipher (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from({ length: bfvBatchEncoder.slotCount }, _ => 5)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 1032188))
})
test('It should negate a cipher to a destination cipher (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from({ length: bgvBatchEncoder.slotCount }, _ => 5)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 1032188))
})
test('It should negate a cipher and return a cipher result (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from({ length: bfvBatchEncoder.slotCount }, _ => 5)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 1032188))
})
test('It should negate a cipher and return a cipher result (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from({ length: bgvBatchEncoder.slotCount }, _ => 5)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 1032188))
})
test('It should negate a cipher to a destination cipher (bfv) (uint64)', () => {
const item = seal.Evaluator(bfvContext)
const arr = BigUint64Array.from({ length: bfvBatchEncoder.slotCount }, _ =>
BigInt('5')
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decodeBigInt(result, false)
const expected = BigUint64Array.from(
{ length: bfvBatchEncoder.slotCount },
_ => BigInt('1032188')
)
expect(decoded).toEqual(expected)
})
test('It should negate a cipher to a destination cipher (bgv) (uint64)', () => {
const item = seal.Evaluator(bgvContext)
const arr = BigUint64Array.from({ length: bgvBatchEncoder.slotCount }, _ =>
BigInt('5')
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decodeBigInt(result, false)
const expected = BigUint64Array.from(
{ length: bgvBatchEncoder.slotCount },
_ => BigInt('1032188')
)
expect(decoded).toEqual(expected)
})
test('It should negate a cipher and return a cipher result (bfv) (uint64)', () => {
const item = seal.Evaluator(bfvContext)
const arr = BigUint64Array.from({ length: bfvBatchEncoder.slotCount }, _ =>
BigInt('5')
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decodeBigInt(result, false)
const expected = BigUint64Array.from(
{ length: bfvBatchEncoder.slotCount },
_ => BigInt('1032188')
)
expect(decoded).toEqual(expected)
})
test('It should negate a cipher and return a cipher result (bgv) (uint64)', () => {
const item = seal.Evaluator(bgvContext)
const arr = BigUint64Array.from({ length: bgvBatchEncoder.slotCount }, _ =>
BigInt('5')
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decodeBigInt(result, false)
const expected = BigUint64Array.from(
{ length: bgvBatchEncoder.slotCount },
_ => BigInt('1032188')
)
expect(decoded).toEqual(expected)
})
test('It should negate a cipher to a destination cipher (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'negate')
item.negate(cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipherDest)
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(-x))
)
})
test('It should negate a cipher and return a cipher result (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'negate')
const cipherDest = item.negate(cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher)
expect(cipherDest.instance).toBeDefined()
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(-x))
)
})
// Add
test('It should fail to add ciphers', () => {
const item = seal.Evaluator(bfvContext)
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
expect(() => item.add(invalidCkksCipher, cipherDest)).toThrow()
expect(spyOn).toHaveBeenCalledWith(invalidCkksCipher, cipherDest)
})
test('It should add a cipher to a destination cipher (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
item.add(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher to a destination cipher (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
item.add(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher and return a cipher result (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'add')
const cipherDest = item.add(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher and return a cipher result (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'add')
const cipherDest = item.add(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher to a destination cipher (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
item.add(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher to a destination cipher (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
item.add(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher and return a cipher result (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from({ length: bfvBatchEncoder.slotCount }).map(
(x, i) => i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'add')
const cipherDest = item.add(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher and return a cipher result (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from({ length: bgvBatchEncoder.slotCount }).map(
(x, i) => i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'add')
const cipherDest = item.add(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr.map(x => 2 * x))
})
test('It should add a cipher to a destination cipher (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from({ length: ckksEncoder.slotCount }).map(
(x, i) => i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'add')
item.add(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(2 * x))
)
})
test('It should add a cipher and return a cipher result (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'add')
const cipherDest = item.add(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(2 * x))
)
})
// Sub
test('It should fail to sub ciphers', () => {
const item = seal.Evaluator(bfvContext)
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
expect(() => item.sub(invalidCkksCipher, cipherDest)).toThrow()
expect(spyOn).toHaveBeenCalledWith(invalidCkksCipher, cipherDest)
})
test('It should sub a cipher to a destination cipher (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const arr2 = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -2 * i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const plain2 = bfvBatchEncoder.encode(arr2) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipher2 = bfvEncryptor.encrypt(plain2) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
item.sub(cipher, cipher2, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should sub a cipher to a destination cipher (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const arr2 = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -2 * i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const plain2 = bgvBatchEncoder.encode(arr2) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipher2 = bgvEncryptor.encrypt(plain2) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
item.sub(cipher, cipher2, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should sub a cipher and return a cipher result (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -i
)
const arr2 = Int32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => -2 * i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const plain2 = bfvBatchEncoder.encode(arr2) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipher2 = bfvEncryptor.encrypt(plain2) as CipherText
const spyOn = jest.spyOn(item, 'sub')
const cipherDest = item.sub(cipher, cipher2) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should sub a cipher and return a cipher result (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -i
)
const arr2 = Int32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => -2 * i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const plain2 = bgvBatchEncoder.encode(arr2) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipher2 = bgvEncryptor.encrypt(plain2) as CipherText
const spyOn = jest.spyOn(item, 'sub')
const cipherDest = item.sub(cipher, cipher2) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => -x))
})
test('It should sub a cipher to a destination cipher (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => 2 * i
)
const arr2 = Uint32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const plain2 = bfvBatchEncoder.encode(arr2) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipher2 = bfvEncryptor.encrypt(plain2) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
item.sub(cipher, cipher2, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr2.map(x => x))
})
test('It should sub a cipher to a destination cipher (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => 2 * i
)
const arr2 = Uint32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const plain2 = bgvBatchEncoder.encode(arr2) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipher2 = bgvEncryptor.encrypt(plain2) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
item.sub(cipher, cipher2, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr2.map(x => x))
})
test('It should sub a cipher and return a cipher result (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => 2 * i
)
const arr2 = Uint32Array.from(
{ length: bfvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const plain2 = bfvBatchEncoder.encode(arr2) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipher2 = bfvEncryptor.encrypt(plain2) as CipherText
const spyOn = jest.spyOn(item, 'sub')
const cipherDest = item.sub(cipher, cipher2) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr2.map(x => x))
})
test('It should sub a cipher and return a cipher result (bgv) (uint32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Uint32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => 2 * i
)
const arr2 = Uint32Array.from(
{ length: bgvBatchEncoder.slotCount },
(_, i) => i
)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const plain2 = bgvBatchEncoder.encode(arr2) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipher2 = bgvEncryptor.encrypt(plain2) as CipherText
const spyOn = jest.spyOn(item, 'sub')
const cipherDest = item.sub(cipher, cipher2) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, false)
expect(decoded).toEqual(arr2.map(x => x))
})
test('It should sub a cipher to a destination cipher (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => i
)
const arr2 = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => 2 * i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const plain2 = ckksEncoder.encode(arr2, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const cipher2 = ckksEncryptor.encrypt(plain2) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'sub')
item.sub(cipher, cipher2, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2, cipherDest)
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(-x))
)
})
test('It should sub a cipher and return a cipher result (ckks)', () => {
const item = seal.Evaluator(ckksContext)
const arr = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => i
)
const arr2 = Float64Array.from(
{ length: ckksEncoder.slotCount },
(_, i) => 2 * i
)
const plain = ckksEncoder.encode(arr, Math.pow(2, 20)) as PlainText
const plain2 = ckksEncoder.encode(arr2, Math.pow(2, 20)) as PlainText
const cipher = ckksEncryptor.encrypt(plain) as CipherText
const cipher2 = ckksEncryptor.encrypt(plain2) as CipherText
const spyOn = jest.spyOn(item, 'sub')
const cipherDest = item.sub(cipher, cipher2) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher2)
expect(cipherDest.instance).toBeDefined()
const result = ckksDecryptor.decrypt(cipherDest) as PlainText
const decoded = ckksEncoder.decode(result)
expect(decoded.map(x => 0 + Math.round(x))).toEqual(
arr.map(x => 0 + Math.round(-x))
)
})
// Multiply
test('It should fail to multiply ciphers', () => {
const item = seal.Evaluator(bfvContext)
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'multiply')
expect(() =>
item.multiply(invalidCkksCipher, cipherDest, invalidCkksCipher)
).toThrow()
expect(spyOn).toHaveBeenCalledWith(
invalidCkksCipher,
cipherDest,
invalidCkksCipher
)
})
test('It should multiply a cipher to a destination cipher (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from({ length: bfvBatchEncoder.slotCount }, _ => -5)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'multiply')
item.multiply(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => x * x))
})
test('It should multiply a cipher to a destination cipher (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from({ length: bgvBatchEncoder.slotCount }, _ => -5)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'multiply')
item.multiply(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => x * x))
})
test('It should multiply a cipher and return a cipher result (bfv) (int32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Int32Array.from({ length: bfvBatchEncoder.slotCount }, _ => -5)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'multiply')
const cipherDest = item.multiply(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bfvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bfvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => x * x))
})
test('It should multiply a cipher and return a cipher result (bgv) (int32)', () => {
const item = seal.Evaluator(bgvContext)
const arr = Int32Array.from({ length: bgvBatchEncoder.slotCount }, _ => -5)
const plain = bgvBatchEncoder.encode(arr) as PlainText
const cipher = bgvEncryptor.encrypt(plain) as CipherText
const spyOn = jest.spyOn(item, 'multiply')
const cipherDest = item.multiply(cipher, cipher) as CipherText
expect(spyOn).toHaveBeenCalledWith(cipher, cipher)
expect(cipherDest.instance).toBeDefined()
const result = bgvDecryptor.decrypt(cipherDest) as PlainText
const decoded = bgvBatchEncoder.decode(result, true)
expect(decoded).toEqual(arr.map(x => x * x))
})
test('It should multiply a cipher to a destination cipher (bfv) (uint32)', () => {
const item = seal.Evaluator(bfvContext)
const arr = Uint32Array.from({ length: bfvBatchEncoder.slotCount }, _ => 10)
const plain = bfvBatchEncoder.encode(arr) as PlainText
const cipher = bfvEncryptor.encrypt(plain) as CipherText
const cipherDest = seal.CipherText()
const spyOn = jest.spyOn(item, 'multiply')
item.multiply(cipher, cipher, cipherDest)
expect(spyOn).toHaveBeenCalledWith(cipher, cipher, cipherDest)