2025年3月20日 (四) 05:46 Riguz

2025-03-20T05:46:26Z

←上一版本		2025年3月20日 (四) 05:46的版本
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			<ref>https://asecuritysite.com/hybrid/go_hybrid3</ref>

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">


	from kyber_py.kyber import Kyber512,Kyber768,Kyber1024		from kyber_py.kyber import Kyber512,Kyber768,Kyber1024
	from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes		from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes

2025年3月20日 (四) 05:45 Riguz

2025-03-20T05:45:43Z

@@ 第75行： / 第75行： @@
 data=unpad(plain)
 print (f"Decrypted: {data.decode()}")
 </syntaxhighlight>

Riguz：创建页面，内容为“ from kyber_py.kyber import Kyber512,Kyber768,Kyber1024 from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes from cryptography.hazmat.primitives import padding import binascii import os import sys def go_encrypt(msg,method,mode): cipher = Cipher(method, mode) encryptor = cipher.encryptor() ct = encryptor.update(msg) + encryptor.finalize() return (ct) def go_decrypt(ct,method,mode): cipher =…”

2025-03-20T05:45:13Z

创建页面，内容为“<syntaxhighlight lang="python"> from kyber_py.kyber import Kyber512,Kyber768,Kyber1024 from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes from cryptography.hazmat.primitives import padding import binascii import os import sys def go_encrypt(msg,method,mode): cipher = Cipher(method, mode) encryptor = cipher.encryptor() ct = encryptor.update(msg) + encryptor.finalize() return (ct) def go_decrypt(ct,method,mode): cipher =…”

新页面

<syntaxhighlight lang="python">

from kyber_py.kyber import Kyber512,Kyber768,Kyber1024
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.primitives import padding
import binascii
import os
import sys

def go_encrypt(msg,method,mode):
cipher = Cipher(method, mode)
encryptor = cipher.encryptor()
ct = encryptor.update(msg) + encryptor.finalize()
return (ct)

def go_decrypt(ct,method,mode):
cipher = Cipher(method, mode)
decryptor = cipher.decryptor()
return (decryptor.update(ct) + decryptor.finalize())

def pad(data,size=128):
padder = padding.PKCS7(size).padder()
padded_data = padder.update(data)
padded_data += padder.finalize()
return(padded_data)

def unpad(data,size=128):
padder = padding.PKCS7(size).unpadder()
unpadded_data = padder.update(data)
unpadded_data += padder.finalize()
return(unpadded_data)

msg="Hello"
kemtype=0

if (len(sys.argv)>1):
msg=str(sys.argv[1])
if (len(sys.argv)>2):
kemtype=int(sys.argv[2])

iv = os.urandom(16)

pk, sk = Kyber512.keygen()
key, c = Kyber512.encaps(pk)

if (kemtype==1):
pk, sk = Kyber768.keygen()
key, c = Kyber768.encaps(pk)
if (kemtype==2):
pk, sk = Kyber1024.keygen()
key, c = Kyber1024.encaps(pk)

padded_data=pad(msg.encode())
cipher=go_encrypt(padded_data,algorithms.AES(key), modes.CBC(iv))

print ("Message: ",msg)
print(f"Kyber key created: {iv.hex()}")
print(f"IV: {key.hex()}")
print ("Cipher (encrypted with Kyber key): ",binascii.b2a_hex(cipher))

if (kemtype==0):
key = Kyber512.decaps(sk, c)
print("\nKyber512")
elif (kemtype==1):
key = Kyber768.decaps(sk, c)
print("\nKyber768")
elif (kemtype==2):
key = Kyber1024.decaps(sk, c)
print("\nKyber1024")

print(f"Kyber key recovered: {key.hex()}")
plain=go_decrypt(cipher,algorithms.AES(key), modes.CBC(iv))
data=unpad(plain)
print (f"Decrypted: {data.decode()}")
</syntaxhighlight>

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2025年3月20日 (四) 05:46 Riguz

2025年3月20日 (四) 05:45 Riguz