Rivojlantirish vazirligi muhammad al- xorazmiy nomidagi toshkent axborot

O'ZBEKISTON RESPUBLIKASI AXBOROT TEXNOLOGIYALARI VA KOMMUNIKATSIYALARINI
RIVOJLANTIRISH VAZIRLIGI MUHAMMAD AL- XORAZMIY NOMIDAGI TOSHKENT AXBOROT
TEXNOLOGIYALARI UNIVERSITETI



AMALIY ish

Mavzu: AES shifrlash algoritmi
Bajardi: Begmatov N
Tekshirdi: Karimov


Mavzu : AES shifrlash algoritmi

1.Bunda biz PYTHON dasturlash tilidan foydalanamiz

Kerakli kutubxonlarni o’rnatamiz.



Endi, AES-256-GSM tarmog’ini qanday ishlashini to’liq ko’rib chiqamiz.
Bu misolda maxfiy kalitni random qilib tanlab olib, kiritilgan ochiq matnni shifrlaymiz va deshifrlaymiz.

from Crypto.Cipher import AES
import binascii, os
def encrypt_AES_GCM(msg, secretKey):
aesCipher = AES.new(secretKey, AES.MODE_GCM)
ciphertext, authTag = aesCipher.encrypt_and_digest(msg)
return (ciphertext, aesCipher.nonce, authTag)
def decrypt_AES_GCM(encryptedMsg, secretKey):
(ciphertext, nonce, authTag) = encryptedMsg
aesCipher = AES.new(secretKey, AES.MODE_GCM, nonce)
plaintext = aesCipher.decrypt_and_verify(ciphertext, authTag)
return plaintext
secretKey = os.urandom(32) # 256-bit random encryption key
print("Encryption key:", binascii.hexlify(secretKey))

msg = b"Begmatov_Nodirbek"
encryptedMsg = encrypt_AES_GCM(msg, secretKey)
print("encryptedMsg", {
'ciphertext': binascii.hexlify(encryptedMsg[0]),
'aesIV': binascii.hexlify(encryptedMsg[1]),
'authTag': binascii.hexlify(encryptedMsg[2])
})

decryptedMsg = decrypt_AES_GCM(encryptedMsg, secretKey)
print("decryptedMsg", decryptedMsg)

Yuqoridagi dasturimiz va ism familyani kiritib quyidagi natijaga ega bo’lamiz:
PlainText :Begmatov_Nodirbek
RandomKey : ed5fca9fca5c0d3ccc2de6b6ceda031dac0f8c9025ecf315f74aa102b2dabaa5


CipherText : 784cb5455eae3940523b9fa11eb7f63849


DecryptedText : Begmatov_Nodirbek