[Python] How to Decrypt Cryptojs RC4Drop encrypted data in python

Below is the code in my nodejs project to encrypt and decrypt the data which is working perfectly.. I need to decrypt this nodejs encrypted data using python.

encryptData(data) {
try {
var encryptionKey = CryptoJS.enc.Utf8.parse("SecretKey");
return CryptoJS.RC4Drop.encrypt(JSON.stringify(data), encryptionKey, {
drop: 3072 / 4
}).toString();
} catch (error) {
console.error(error);
}
},
decryptData(encrypted) {
try {
var encryptionKey = CryptoJS.enc.Utf8.parse("SecretKey");
const plainPass = CryptoJS.RC4Drop.decrypt(encrypted, encryptionKey, {
drop: 3072 / 4
}).toString(CryptoJS.enc.Utf8);
return plainPass;

} catch (error) {
console.error(error);
}

},


How do I implement this similar decryption functionality in python?

I tried below code but its not working.

def rc4_drop(key, data, drop_bytes):
# RC4 Encryption/Decryption
cipher = ARC4.new(key)
decrypted = cipher.decrypt(data)

# Apply drop functionality
if drop_bytes < len(decrypted):
return decrypted[drop_bytes:]
else:
return b''

def decrypt_data(encrypted_base64, key, drop_bytes):
try:
# Convert Base64-encoded encrypted data to bytes
encrypted_bytes = base64.b64decode(encrypted_base64)
print("Encrypted bytes:", encrypted_bytes)

# Convert the key to bytes
key_bytes = key.encode('utf-8')
print("Key bytes:", key_bytes)

# Decrypt data with RC4 and apply drop bytes
plaintext_bytes = rc4_drop(key_bytes, encrypted_bytes, drop_bytes)
print("Plaintext bytes after dropping:", plaintext_bytes)

# Convert bytes to string
return plaintext_bytes.decode('utf-8') if plaintext_bytes else ''

except Exception as e:
print(f"An error occurred: {e}")
return None

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