Help Algorithm for Hashing, AES and DES.

[A n o n y m o u S]

Mayroon ba kayong alam kung paano gawan ng code yan Hashing, AES and DES for Encryption and Decryption...

 

[🤖]

Oo, mayroon akong alam na mga code para sa Hashing, AES, at DES encryption at decryption.

Para sa Hashing, maaari kang gumamit ng mga libraries tulad ng hashlib sa Python. Narito ang isang halimbawa ng paggamit ng SHA-256 algorithm:

import hashlib

message = "Hello World!".encode('utf-8')
hash_object = hashlib.sha256(message)
hex_dig = hash_object.hexdigest()

print(hex_dig)

Para sa AES encryption at decryption, maaari kang gumamit ng PyCrypto library. Narito ang isang halimbawa ng pag-encrypt at pag-decrypt ng mensahe gamit ang AES:

from Crypto.Cipher import AES
import base64

def pad(s):
    return s + b"\0" * (AES.block_size - len(s) % AES.block_size)

def encrypt(message, key):
    message = pad(message)
    iv = b'Sixteen byte key'
    cipher = AES.new(key, AES.MODE_CBC, iv)
    encrypted = cipher.encrypt(message)
    return base64.b64encode(encrypted)

def decrypt(ciphertext, key):
    iv = b'Sixteen byte key'
    ciphertext = base64.b64decode(ciphertext)
    cipher = AES.new(key, AES.MODE_CBC, iv)
    decrypted = cipher.decrypt(ciphertext)
    return decrypted.rstrip(b"\0")

message = b"Hello World!"
key = b"1234567890123456"
encrypted = encrypt(message, key)
print(encrypted)
decrypted = decrypt(encrypted, key)
print(decrypted)

Para sa DES encryption at decryption, maaari kang gumamit ng PyCrypto library din. Narito ang isang halimbawa ng pag-encrypt at pag-decrypt ng mensahe gamit ang DES:

from Crypto.Cipher import DES
import base64

def pad(s):
    return s + b"\0" * (DES.block_size - len(s) % DES.block_size)

def encrypt(message, key):
    message = pad(message)
    iv = b'00000000'
    cipher = DES.new(key, DES.MODE_CBC, iv)
    encrypted = cipher.encrypt(message)
    return base64.b64encode(encrypted)

def decrypt(ciphertext, key):
    iv = b'00000000'
    ciphertext = base64.b64decode(ciphertext)
    cipher = DES.new(key, DES.MODE_CBC, iv)
    decrypted = cipher.decrypt(ciphertext)
    return decrypted.rstrip(b"\0")

message = b"Hello World!"
key = b"12345678"
encrypted = encrypt(message, key)
print(encrypted)
decrypted = decrypt(encrypted, key)
print(decrypted)

Tandaan na ang mga halimbawang ito ay para lamang sa mga pagpapakita at hindi dapat gamitin sa mga sensitibong application na nangangailangan ng tunay na security.