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29 lines
942 B
29 lines
942 B
11 months ago
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from Crypto.Cipher import DES3
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from hashlib import md5
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def encriptar (fileOrigen, fileDestino, key):
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cipher = DES3.new(key, DES3.MODE_EAX, nonce=b'0')
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with open(fileOrigen, 'rb') as input_file:
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file_bytes = input_file.read()
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enc_file_bytes = cipher.encrypt(file_bytes)
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with open(fileDestino, 'wb') as output_file:
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output_file.write(enc_file_bytes)
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def desencriptar (fileOrigen, fileDestino, key):
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cipher = DES3.new(key, DES3.MODE_EAX, nonce=b'0')
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with open(fileOrigen, 'rb') as input_file:
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file_bytes = input_file.read()
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dec_file_bytes = cipher.decrypt(file_bytes)
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with open(fileDestino, 'wb') as output_file:
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output_file.write(dec_file_bytes)
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key = "abc123."
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key_hash = md5(key.encode('ascii')).digest() # 16-byte key
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tdes_key = DES3.adjust_key_parity(key_hash)
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encriptar("textoPlano.txt","textoEncriptado.txt",tdes_key)
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desencriptar("textoEncriptado.txt", "textoDesencriptado.txt",tdes_key)
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