Admin: Create Base64 page with RSA Python implementation following AES page format (via create-page on MediaWiki MCP Server)

2026-06-20T03:49:11Z

Create Base64 page with RSA Python implementation following AES page format (via create-page on MediaWiki MCP Server)

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<pre>
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_OAEP
from Crypto.Signature import pkcs1_15
from Crypto.Hash import SHA256

def generate_keypair(bits=2048):
"""Generate an RSA public/private key pair."""
key = RSA.generate(bits)
return key

def encrypt(plaintext, public_key):
"""Encrypt data with RSA-OAEP."""
cipher = PKCS1_OAEP.new(public_key)
data = plaintext.encode() if isinstance(plaintext, str) else plaintext
return cipher.encrypt(data)

def decrypt(ciphertext, private_key):
"""Decrypt data with RSA-OAEP."""
cipher = PKCS1_OAEP.new(private_key)
return cipher.decrypt(ciphertext).decode()

def sign(data, private_key):
"""Sign data with RSA-PSS + SHA-256."""
h = SHA256.new(data.encode() if isinstance(data, str) else data)
return pkcs1_15.new(private_key).sign(h)

def verify(data, signature, public_key):
"""Verify an RSA-PSS + SHA-256 signature."""
h = SHA256.new(data.encode() if isinstance(data, str) else data)
try:
pkcs1_15.new(public_key).verify(h, signature)
return True
except (ValueError, TypeError):
return False

if __name__ == '__main__':
key = generate_keypair(2048)
private_key = key
public_key = key.publickey()

# --- Encryption / Decryption ---
message = "This is a secret message"
ciphertext = encrypt(message, public_key)
plaintext = decrypt(ciphertext, private_key)
print("Original: '%s'" % message)
print("Decrypted: '%s'" % plaintext)

# --- Signing / Verification ---
data = "This data needs signing"
signature = sign(data, private_key)
verified = verify(data, signature, public_key)
print("Signature verified: %s" % verified)
</pre>

Practical RSA key generation, encryption, decryption, and digital signing in Python using PyCryptodome.

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[[Category:Security]]
[[Category:Encryption]]

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Admin: Create Base64 page with RSA Python implementation following AES page format (via create-page on MediaWiki MCP Server)