C++ (Cpp) EncryptKey Examples

Example #1

static void
generateAesKeys(Blob& encryptionKeyBlob, Blob& decryptionKeyBlob)
{
  AesKeyParams params;
  DecryptKey memberDecryptKey = AesAlgorithm::generateKey(params);
  decryptionKeyBlob = memberDecryptKey.getKeyBits();
  EncryptKey memberEncryptKey = AesAlgorithm::deriveEncryptKey(decryptionKeyBlob);
  encryptionKeyBlob = memberEncryptKey.getKeyBits();
}

Example #2

static void
generateRsaKeys(Blob& encryptionKeyBlob, Blob& decryptionKeyBlob)
{
  RsaKeyParams params;
  DecryptKey decryptKey = RsaAlgorithm::generateKey(params);
  decryptionKeyBlob = decryptKey.getKeyBits();
  EncryptKey encryptKey = RsaAlgorithm::deriveEncryptKey(decryptionKeyBlob);
  encryptionKeyBlob = encryptKey.getKeyBits();
}

Example #3

void
GroupManager::generateKeyPair(Blob& privateKeyBlob, Blob& publicKeyBlob)
{
  RsaKeyParams params(keySize_);

  DecryptKey privateKey = RsaAlgorithm::generateKey(params);
  privateKeyBlob = privateKey.getKeyBits();

  EncryptKey publicKey = RsaAlgorithm::deriveEncryptKey(privateKeyBlob);
  publicKeyBlob = publicKey.getKeyBits();
}

Example #4

TEST_F(TestRsaAlgorithm, EncryptionDecryption)
{
  EncryptParams encryptParams(ndn_EncryptAlgorithmType_RsaOaep, 0);

  ptr_lib::shared_ptr<vector<uint8_t> > privateKeyBuffer(new vector<uint8_t>());
  fromBase64(PRIVATE_KEY, *privateKeyBuffer);
  Blob privateKeyBlob(privateKeyBuffer, false);

  ptr_lib::shared_ptr<vector<uint8_t> > publicKeyBuffer(new vector<uint8_t>());
  fromBase64(PUBLIC_KEY, *publicKeyBuffer);
  Blob publicKeyBlob(publicKeyBuffer, false);

  DecryptKey decryptKey(privateKeyBlob);
  EncryptKey encryptKey = RsaAlgorithm::deriveEncryptKey(decryptKey.getKeyBits());

  Blob encodedPublic = publicKeyBlob;
  Blob derivedPublicKey = encryptKey.getKeyBits();

  ASSERT_TRUE(encodedPublic.equals(derivedPublicKey));

  Blob plainBlob(PLAINTEXT, sizeof(PLAINTEXT));
  Blob encryptBlob = RsaAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  Blob receivedBlob = RsaAlgorithm::decrypt
    (decryptKey.getKeyBits(), encryptBlob, encryptParams);

  ASSERT_TRUE(plainBlob.equals(receivedBlob));

  Blob cipherBlob(CIPHERTEXT_OAEP, sizeof(CIPHERTEXT_OAEP));
  Blob decryptedBlob = RsaAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);

  ASSERT_TRUE(plainBlob.equals(decryptedBlob));

  // Now test RsaPkcs.
  encryptParams = EncryptParams(ndn_EncryptAlgorithmType_RsaPkcs, 0);
  encryptBlob = RsaAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  receivedBlob = RsaAlgorithm::decrypt
    (decryptKey.getKeyBits(), encryptBlob, encryptParams);

  ASSERT_TRUE(plainBlob.equals(receivedBlob));

  cipherBlob = Blob(CIPHERTEXT_PKCS, sizeof(CIPHERTEXT_PKCS));
  decryptedBlob = RsaAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);

  ASSERT_TRUE(plainBlob.equals(decryptedBlob));
}

Example #5

TEST_F(TestAesAlgorithm, KeyGeneration)
{
  AesKeyParams keyParams(128);
  DecryptKey decryptKey = AesAlgorithm::generateKey(keyParams);
  EncryptKey encryptKey = AesAlgorithm::deriveEncryptKey(decryptKey.getKeyBits());

  Blob plainBlob(PLAINTEXT, sizeof(PLAINTEXT));

  // Encrypt/decrypt data in AES_CBC with auto-generated IV.
  EncryptParams encryptParams(ndn_EncryptAlgorithmType_AesCbc, 16);
  Blob cipherBlob = AesAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  Blob receivedBlob = AesAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);
  ASSERT_TRUE(receivedBlob.equals(plainBlob));
}

Example #6

TEST_F(TestAesAlgorithm, EncryptionDecryption)
{
  EncryptParams encryptParams(ndn_EncryptAlgorithmType_AesEcb, 16);

  Blob key(KEY, sizeof(KEY));
  DecryptKey decryptKey(key);
  EncryptKey encryptKey = AesAlgorithm::deriveEncryptKey(decryptKey.getKeyBits());

  // Check key loading and key derivation.
  ASSERT_TRUE(encryptKey.getKeyBits().equals(key));
  ASSERT_TRUE(decryptKey.getKeyBits().equals(key));

  Blob plainBlob(PLAINTEXT, sizeof(PLAINTEXT));

  // Encrypt data in AES_ECB.
  Blob cipherBlob = AesAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  ASSERT_TRUE(cipherBlob.equals(Blob(CIPHERTEXT_ECB, sizeof(CIPHERTEXT_ECB))));

  // Decrypt data in AES_ECB.
  Blob receivedBlob = AesAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);
  ASSERT_TRUE(receivedBlob.equals(plainBlob));

  // Encrypt/decrypt data in AES_CBC with auto-generated IV.
  encryptParams.setAlgorithmType(ndn_EncryptAlgorithmType_AesCbc);
  cipherBlob = AesAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  receivedBlob = AesAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);
  ASSERT_TRUE(receivedBlob.equals(plainBlob));

  // Encrypt data in AES_CBC with specified IV.
  Blob initialVector(INITIAL_VECTOR, sizeof(INITIAL_VECTOR));
  encryptParams.setInitialVector(initialVector);
  cipherBlob = AesAlgorithm::encrypt
    (encryptKey.getKeyBits(), plainBlob, encryptParams);
  ASSERT_TRUE(cipherBlob.equals(Blob(CIPHERTEXT_CBC_IV, sizeof(CIPHERTEXT_CBC_IV))));

  // Decrypt data in AES_CBC with specified IV.
  receivedBlob = AesAlgorithm::decrypt
    (decryptKey.getKeyBits(), cipherBlob, encryptParams);
  ASSERT_TRUE(receivedBlob.equals(plainBlob));
}