tool py

import base64 import hmac import hashlib from Crypto.Cipher import AES, PKCS1_v1_5 from Crypto.PublicKey import RSA from Crypto.Util.Padding import pad, unpad AES_KEY = bytes.fromhex("f16d966e13fad4b6282f6971c4ea9b6c") AES_IV = bytes.fromhex("4cdcee01d84636de49240c013ed0d4be") HMAC_KEYS = [ bytes.fromhex("3863656435353361396336363465353962646435393538616239396639663631"), bytes.fromhex("53587863726363376f716e5058563979634465725650".encode().hex()), bytes.fromhex("3737333636643033613931373430356161633934343134323366613166663765"), bytes.fromhex("3234633733373936353534363461336162666136303761656331386337323230"), bytes.fromhex("3539363735633366366665333432666638363531643138623965393436626334"), bytes.fromhex("6432343039636131326538663435376562373634313137343437366264633535") ] RSA_PUB_DER = bytes.fromhex("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") def b64_encode(data: bytes) -> str: return base64.b64encode(data).decode('utf-8') def b64_decode(data: str) -> bytes: return base64.b64decode(data.encode('utf-8')) def encrypt_aes(plaintext: bytes) -> bytes: cipher = AES.new(AES_KEY, AES.MODE_CBC, AES_IV) return cipher.encrypt(pad(plaintext, AES.block_size)) def decrypt_aes(ciphertext: bytes) -> bytes: cipher = AES.new(AES_KEY, AES.MODE_CBC, AES_IV) return unpad(cipher.decrypt(ciphertext), AES.block_size) def compute_hmac(key_index: int, message: bytes) -> bytes: return hmac.new(HMAC_KEYS[key_index], message, hashlib.sha256).digest() def encrypt_rsa(data: bytes) -> bytes: key = RSA.import_key(RSA_PUB_DER) return PKCS1_v1_5.new(key).encrypt(data) def compute_digest_sha256(data: bytes) -> bytes: return hashlib.sha256(data).digest() def compute_digest_sha1(data: bytes) -> bytes: return hashlib.sha1(data).digest() def compute_digest_md5(data: bytes) -> bytes: return hashlib.md5(data).digest()

import base64 import hmac import hashlib from Crypto.Cipher import AES, PKCS1_v1_5 from Crypto.PublicKey import RSA aes_key = bytes.fromhex("f16d966e13fad4b6282f6971c4ea9b6c") aes_iv = bytes.fromhex("4cdcee01d84636de49240c013ed0d4be") hmac_keys = [ bytes.fromhex("3863656435353361396336363465353962646435393538616239396639663631"), bytes.fromhex("53587863726363376f716e5058563979634465725650".encode().hex()), bytes.fromhex("3737333636643033613931373430356161633934343134323366613166663765"), bytes.fromhex("3234633733373936353534363461336162666136303761656331386337323230"), bytes.fromhex("3539363735633366366665333432666638363531643138623965393436626334"), bytes.fromhex("6432343039636131326538663435376562373634313137343437366264633535") ] rsa_pub_der = bytes.fromhex("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") def decrypt_aes(ciphertext): cipher = AES.new(aes_key, AES.MODE_CBC, aes_iv) return cipher.decrypt(ciphertext) def encrypt_aes(plaintext): cipher = AES.new(aes_key, AES.MODE_CBC, aes_iv) return cipher.encrypt(plaintext) def compute_hmac(key_index, message): h = hmac.new(hmac_keys[key_index], message, hashlib.sha256) return h.digest() def encrypt_rsa(data): key = RSA.import_key(rsa_pub_der) cipher = PKCS1_v1_5.new(key) return cipher.encrypt(data) def compute_digest_sha256(data): return hashlib.sha256(data).digest() def compute_digest_md5(data): return hashlib.md5(data).digest()