Merge pull request #21 from Sajjon/tests

Remove legacy configurations and plists, add test for GCM

Sources/EllipticCurveKit/Cryptography/Encryption/ECIES+SealedBox.swift

@@ -83,7 +83,7 @@ public extension ECIES.SealedBox {
 
  static let byteCountOf = ByteCountOf()
 
- /// The combined representation (nonce || ephemeralPublicKeyCompressed || tag || ciphertext)
+ /// The combined representation `(nonce || ephemeralPublicKeyCompressed || tag || ciphertext)`
  var combined: Data {
  var combined = Data(nonce)
  combined.append(ephemeralPublicKey.data.compressed)

Sources/EllipticCurveKit/Cryptography/Encryption/ECIES.swift

@@ -26,7 +26,6 @@ public struct ECIES {
  }
 }
 
-
 // MARK: Seal
 public extension ECIES {
 
@@ -57,6 +56,7 @@ public extension ECIES {
  )
 
  let symmetricSealedBox: AES.GCM.SealedBox
+
  do {
 
  symmetricSealedBox = try AES.GCM.seal(
@@ -66,6 +66,15 @@ public extension ECIES {
  authenticating: ephemeralPublicKey.data.compressed
  )
 
+ print("""
+ msg: \(Data(message).toHexString()),
+ nonce: \(Data(nonce).toHexString()),
+ authenticating: \(ephemeralPublicKey.hex.compressed),
+ ciphertext: \(symmetricSealedBox.ciphertext.asHex),
+ tag: \(symmetricSealedBox.tag.toHexString()),
+ symmetricSealedBox.nonce: \(Data(symmetricSealedBox.nonce).toHexString()),
+ """
+ )
  } catch let error as CryptoKitError {
  return .failure(.symmetricEncryptionFailed(error))
  } catch {

Tests/EllipticCurveKitTests/Crypto/AESGCMTests.swift

@@ -0,0 +1,47 @@
+//
+// File.swift
+// 
+//
+// Created by Alexander Cyon on 2021-03-09.
+//
+
+import Foundation
+import XCTest
+@testable import EllipticCurveKit
+import CryptoKit
+
+final class AESGCMTests: XCTestCase {
+ func testAESGCM() throws {
+
+
+ let nonce = try AES.GCM.Nonce(
+ data: Data(hex: "bf9e592c50183db30afff24d")
+ )
+
+ let ciphertext = Data(hex: "d2d309e9d7c9c5f5ca692b3e51e4f84670e8ee3dfce4d183389e6fcea2f46a707101e38a6aff1754e57c533b6bea0f620d5bac85ec9a2f86352111e2fc2879c839b6ae0d931c30364d5245bcad69")
+
+ let authTag = Data(hex: "baa17313cf02d4f34d135c34643426c8")
+
+ let sealedBox = try AES.GCM.SealedBox(
+ nonce: nonce,
+ ciphertext: ciphertext,
+ tag: authTag
+ )
+
+ let symmetricKeyData = Data(hex: "fbe8c9f0dcbdbf52ee3038b18ca378255c35583bae12eb50151d7458d43dc3e1")
+
+ let additionalAuthData = Data(hex: "03B7F98F3FB16527A8F779C326A7A57261F1341EAC191011F7A916D01D668F4549")
+
+ let decrypted = try AES.GCM.open(
+ sealedBox,
+ using: .init(data: symmetricKeyData),
+ authenticating: additionalAuthData
+ )
+
+ let plaintext = String(data: decrypted, encoding: .utf8)!
+ XCTAssertEqual(plaintext, "Guten tag Joe! My nukes are 100 miles south west of Münich, don't tell anyone")
+ }
+
+
+}
+

Tests/EllipticCurveKitTests/Crypto/ECIESTests.swift

@@ -130,8 +130,35 @@ final class ECIESTests: XCTestCase {
 
  let ecies = ECIES()
  let decrypted = try ecies.decrypt(data: encryptedMessage, whitePublicKey: senderPubKey, blackPrivateKey: privateKey)
+
  XCTAssertEqual(decrypted, message)
  }
+
+ func testLength() throws {
+ let message = "The Legend of Zelda is a high fantasy action-adventure video game franchise created by Japanese game designers Shigeru Miyamoto and Takashi Tezuka. It is developed and published by Nintendo."
+ let ecies = ECIES()
+ let alice = KeyPair()
+ let bob = KeyPair()
+ let encryptedMessage = try ecies.encrypt(
+ message: message,
+ whitePublicKey: bob.publicKey,
+ blackPrivateKey: alice.privateKey
+ )
+ let encryptedBytes = encryptedMessage.combined
+ XCTAssertLessThanOrEqual(
+ encryptedBytes.count,
+ 256
+ )
+ let decrypted = try ecies.decrypt(
+ data: encryptedBytes,
+ whitePublicKey: alice.publicKey,
+ blackPrivateKey: bob.privateKey
+ )
+ XCTAssertEqual(
+ decrypted,
+ message
+ )
+ }
 }
 
 extension AffinePoint: ExpressibleByStringLiteral {