100 lines
2.2 KiB
Python
100 lines
2.2 KiB
Python
from Crypto.PublicKey import RSA
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from Crypto.Cipher import PKCS1_OAEP, AES
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from Crypto.Util.Padding import pad, unpad
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from Crypto.Random import get_random_bytes
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import time
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plaintext = input("Please input the test message: ").encode()
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IV = b'0' * 16
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def encrypt_aes(key: bytes, plaintext: bytes) -> bytes:
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plaintext = pad(plaintext, 16)
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cipher = AES.new(key, AES.MODE_CBC, iv=IV)
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return cipher.encrypt(plaintext)
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def decrypt_aes(key: bytes, ciphertext: bytes) -> bytes:
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cipher = AES.new(key, AES.MODE_CBC, iv=IV)
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return unpad(cipher.decrypt(ciphertext), 16)
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for size in (128, 192, 256):
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e_times = []
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d_times = []
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for n in range(100):
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aes_key = get_random_bytes(size // 8)
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start = time.time()
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ciphertext = encrypt_aes(aes_key, plaintext)
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end = time.time()
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e_times.append(end - start)
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start = time.time()
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decrypt_aes(aes_key, ciphertext)
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end = time.time()
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d_times.append(end - start)
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e_avg = sum(e_times) / len(e_times)
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d_avg = sum(d_times) / len(d_times)
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print(f'AES {size} key encrpytion average: {e_avg * 1000} ms')
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print(f'AES {size} key decryption average: {d_avg * 1000} ms\n')
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def encrypt_rsa(public_key: bytes, plaintext: bytes) -> bytes:
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cipher = PKCS1_OAEP.new(public_key)
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return cipher.encrypt(plaintext)
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def decrypt_rsa(private_key: bytes, ciphertext: bytes) -> bytes:
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cipher = PKCS1_OAEP.new(private_key)
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return cipher.decrypt(ciphertext)
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for size in (1024, 2048, 4096):
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e_times = []
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d_times = []
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for n in range(100):
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key = RSA.generate(size)
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private_key = key
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public_key = key.publickey()
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start = time.time()
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ciphertext = encrypt_rsa(public_key, plaintext)
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end = time.time()
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e_times.append(end - start)
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start = time.time()
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decrypt_rsa(private_key, ciphertext)
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end = time.time()
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d_times.append(end - start)
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e_avg = sum(e_times) / len(e_times)
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d_avg = sum(d_times) / len(d_times)
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print(f'RSA {size} key encrpytion average: {e_avg * 1000} ms')
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print(f'RSA {size} key decryption average: {d_avg * 1000} ms\n')
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