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May 27, 2021 03:14
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Manually decrypt text RSA-style, given "N" and "D".
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| ciphertext = input("Ciphertext: ") | |
| m = int(input("m: ")) | |
| d = int(input("D: ")) | |
| num_digits = len(str(m)) | |
| cleartext = "" | |
| print("Decrypting (may take a while)...") | |
| for i in range(0, len(ciphertext), num_digits): | |
| num = int(ciphertext[i:i+num_digits]) | |
| cleartext += chr((num ** d) % m) | |
| print() | |
| print(cleartext) |
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