def test_compressed_encrypt_then_decrypt_string():
plaintext = "X" * 4096
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key, compress=True)
assert_less(len(ciphertext), len(plaintext) / 10)
plaintext_after = crypto.decrypt_string(ciphertext, key)
assert_equal(plaintext, plaintext_after)
def test_compressed_encrypt_then_decrypt_random_string():
plaintext = os.urandom(1024 * 1024)
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key, compress=True)
plaintext_after = crypto.decrypt_string(ciphertext, key)
assert_equal(plaintext, plaintext_after)
def test_encrypt_then_decrypt_empty_string():
plaintext = ""
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key)
plaintext_after = crypto.decrypt_string(ciphertext, key)
assert_equal(plaintext_after, plaintext)
def test_decrypt_with_wrong_password_raises_exception():
plaintext = "this is some text"
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key)
another_key = "this is my key 2"
plaintext_after = crypto.decrypt_string(ciphertext, another_key)
def test_decrypt_then_damage_raises_exception():
plaintext = "this is some text"
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key)
ciphertext = ciphertext[:len(ciphertext)-5]
plaintext_after = crypto.decrypt_string(ciphertext, key)
def test_encrypt_then_alter_raises_exception():
plaintext = "this is some text"
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key)
ciphertext = ciphertext[:-len(plaintext)] + '\0' * len(plaintext)
plaintext_after = crypto.decrypt_string(ciphertext, key)
def test_massive_encrypt_then_decrypt():
plaintext = "X" * 50 * 1024 * 1024
key = "this is my key"
ciphertext = crypto.encrypt_string(plaintext, key)
plaintext_after = crypto.decrypt_string(ciphertext, key)
assert_equal(plaintext, plaintext_after)
def test_ciphertext_not_repeated():
plaintext = "this is some text"
key = "this is my key"
all_ciphertexts = [crypto.encrypt_string(plaintext, key) for i in xrange(100)]
unique_ciphertexts = set(all_ciphertexts)
assert_equal(len(unique_ciphertexts), len(all_ciphertexts))