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53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import base64
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import os
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from . import syfr as crypto
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def test_rsa_encrypt_and_decrypt():
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priv = crypto.generate_rsa_key(complexity=512)
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message = "Attack at Calais"
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ciphertext = crypto.rsa_encrypt(message, priv.public_key())
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assert crypto.rsa_decrypt(ciphertext, priv) == message
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def test_aes_encrypt_decrypt():
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priv = crypto.create_aes_key()
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message = "Sell Watermelons"
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ciphertext, iv = crypto.aes_encrypt(message, priv)
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assert crypto.aes_decrypt(ciphertext, priv, iv) == message
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def test_full_encrypt():
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priv1 = crypto.generate_rsa_key()
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priv2 = crypto.generate_rsa_key()
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target_pubkey = crypto.serialize_pubkey(priv2.public_key())
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message = "Santa is not real."
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aes_ciphertext, encry_aes_key, hmac, hmac_signature, iv, metadata = \
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crypto.encrypt(message, priv1, target_pubkey)
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aes_key = crypto.rsa_decrypt(encry_aes_key, priv2)
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assert crypto.aes_decrypt(aes_ciphertext, aes_key, iv) == message
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assert message == \
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crypto.decrypt(
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aes_ciphertext, encry_aes_key, hmac, hmac_signature,
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priv2, iv, metadata
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)
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def test_sign():
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priv = crypto.generate_rsa_key(complexity=512)
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message = "Secret wish list"
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sig = crypto.sign(message, priv)
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assert crypto.verify_signature(sig, message, priv.public_key())
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def test_long_pad():
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complexity = 10**3 # won't create exactly this length
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contents = base64.b64encode(os.urandom(complexity))
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padded = crypto.long_pad(contents, 3*complexity)
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assert crypto.long_unpad(padded) == contents
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