mirror of
https://github.com/logos-blockchain/logos-blockchain-specs.git
synced 2026-01-11 01:23:13 +00:00
54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
from crypto.PublicKey import RSA
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from crypto.Cipher import PKCS1_OAEP
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import random
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# Function to encrypt and sort the values using distinct public keys
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def encrypt_and_sort_values(public_keys, values):
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encrypted_values = []
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for i, value in enumerate(values):
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public_key = public_keys[i]
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cipher = PKCS1_OAEP.new(public_key)
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encrypted_value = cipher.encrypt(value.to_bytes(length=4, byteorder='big'))
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encrypted_values.append(encrypted_value)
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encrypted_values.sort() # Sort the encrypted values
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return encrypted_values
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# Function to retrieve the index of an encrypted value
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def get_encrypted_value_index(encrypted_values, target_value):
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for i, encrypted_value in enumerate(encrypted_values):
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if encrypted_value == target_value:
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return i
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return -1
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# Main function
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def main():
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# Generate a list of random values
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values = [random.randint(1, 10000) for _ in range(500)]
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target_value = random.choice(values) # Select a random value to find its index
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values.sort() # Sorting the values
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print(values)
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# Generate distinct RSA public keys
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public_keys = [RSA.generate(2048).publickey() for _ in range(500)]
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# Encrypt and sort the values using distinct public keys
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encrypted_values = encrypt_and_sort_values(public_keys, values)
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print(encrypted_values[3])
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# Retrieve the index of the target encrypted value
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target_index = get_encrypted_value_index(encrypted_values, encrypted_values[3])
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# Output the result
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if target_index != -1:
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print("The index of the target encrypted value is:", target_index)
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else:
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print("The target encrypted value was not found.")
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if __name__ == "__main__":
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main()
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