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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCrypto open source project
//
// Copyright (c) 2019-2020 Apple Inc. and the SwiftCrypto project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.md for the list of SwiftCrypto project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import Foundation
import XCTest
#if CRYPTO_IN_SWIFTPM && !CRYPTO_IN_SWIFTPM_FORCE_BUILD_API
// Skip tests that require @testable imports of CryptoKit.
#else
#if !CRYPTO_IN_SWIFTPM_FORCE_BUILD_API
@testable import CryptoKit
#else
@testable import Crypto
#endif
enum ECDHTestErrors: Error {
case PublicKeyFailure
case ParseSPKIFailure
}
class NISTECDHTests: XCTestCase {
func testInteropFIPSKeys() throws {
var fipsKey: P256.KeyAgreement.PrivateKey = P256.KeyAgreement.PrivateKey(compactRepresentable: false)
for _ in 0...10_000 {
fipsKey = P256.KeyAgreement.PrivateKey(compactRepresentable: false)
// We ensure we have a key that's not compact representable. (Some FIPS keys are)
if fipsKey.publicKey.compactRepresentation != nil {
continue
} else {
break
}
}
let compactKey = P256.KeyAgreement.PrivateKey(compactRepresentable: true)
XCTAssertNil(fipsKey.publicKey.compactRepresentation)
XCTAssertNotNil(compactKey.publicKey.compactRepresentation)
let ss1 = try orFail { try fipsKey.sharedSecretFromKeyAgreement(with: compactKey.publicKey) }
let ss2 = try orFail { try compactKey.sharedSecretFromKeyAgreement(with: fipsKey.publicKey) }
XCTAssertEqual(ss1, ss2)
XCTAssertThrowsError(try P256.KeyAgreement.PublicKey(compactRepresentation: fipsKey.publicKey.rawRepresentation))
let compactRepresentation = try unwrap(compactKey.publicKey.compactRepresentation)
XCTAssertNotNil(try P256.KeyAgreement.PublicKey(compactRepresentation: compactRepresentation))
}
func testWycheproof() throws {
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp256r1_test",
testFunction: { (group: ECDHTestGroup) in
testGroup(group: group, privateKeys: P256.KeyAgreement.PrivateKey.self, onCurve: P256.self)
})
}
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp384r1_test",
testFunction: { (group: ECDHTestGroup) in
testGroup(group: group, privateKeys: P384.KeyAgreement.PrivateKey.self, onCurve: P384.self)
})
}
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp521r1_test",
testFunction: { (group: ECDHTestGroup) in
testGroup(group: group, privateKeys: P521.KeyAgreement.PrivateKey.self, onCurve: P521.self)
})
}
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp256r1_ecpoint_test",
testFunction: { (group: ECDHTestGroup) in
testGroupPoint(group: group, privateKeys: P256.KeyAgreement.PrivateKey.self, onCurve: P256.self)
})
}
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp384r1_ecpoint_test",
testFunction: { (group: ECDHTestGroup) in
testGroupPoint(group: group, privateKeys: P384.KeyAgreement.PrivateKey.self, onCurve: P384.self)
})
}
try orFail {
try wycheproofTest(
bundleType: self,
jsonName: "ecdh_secp521r1_ecpoint_test",
testFunction: { (group: ECDHTestGroup) in
testGroupPoint(group: group, privateKeys: P521.KeyAgreement.PrivateKey.self, onCurve: P521.self)
})
}
}
func testGroup<PrivKey: NISTECPrivateKey & DiffieHellmanKeyAgreement, Curve: SupportedCurveDetailsImpl>(group: ECDHTestGroup, privateKeys: PrivKey.Type, onCurve curve: Curve.Type) {
#if !CRYPTO_IN_SWIFTPM_FORCE_BUILD_API
self.testGroupCC(group: group, privateKeys: privateKeys, onCurve: curve)
#else
self.testGroupOpenSSL(group: group, privateKeys: privateKeys, onCurve: curve)
#endif
}
func testGroupPoint<PrivKey: NISTECPrivateKey & DiffieHellmanKeyAgreement, Curve: SupportedCurveDetailsImpl>(group: ECDHTestGroup, privateKeys: PrivKey.Type, onCurve curve: Curve.Type) {
#if !CRYPTO_IN_SWIFTPM_FORCE_BUILD_API
self.testGroupPointCC(group: group, privateKeys: privateKeys, onCurve: curve)
#else
self.testGroupPointOpenSSL(group: group, privateKeys: privateKeys, onCurve: curve)
#endif
}
}
#endif // CRYPTO_IN_SWIFTPM
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