向大老们求助，询问天下争霸三国志/幻世与冒险的解密方法

讨论
1

如题，在其他论坛被和谐掉了 :sob: :sob:，小白来不及存…解密脚本 :scream: :scream:
，看有没有人知道新版如何解密或有保留天下争霸三国志/幻世与冒险的解密脚本。 :bamboo:

天下争霸三国志:

:bellhop_bell:样本:(有存到网址就直接给了)

https://show.kiloai.com/app_hots/6/100/release/1.0.3.18/project.manifest

https://show.kiloai.com/app_hots/6/100/release/1.0.3.18/assets/resources/native/02/026131f6-f451-4aee-8e53-566a2fbdd686.astc
https://show.kiloai.com/app_hots/6/100/release/1.0.3.18/assets/resources/native/03/03b0aa8b-16d1-4216-b9cf-a1d9e4a920de.astc
https://show.kiloai.com/app_hots/6/100/release/1.0.3.18/assets/resources/native/03/03f95a20-43c4-4f91-ad5c-84957da69886.astc

Mobile Legends: Adventure/黎明啟示錄:

https://apkcombo.com/mobile-legends-adventure/com.moonton.mobilehero/
国服似乎叫幻世与冒险

听说是异或ea前100自节，但某次更新后，大幅度更改加密方式:

:bellhop_bell:样本:
heroSpine.zip (1.1 MB)

2 
from Crypto.Cipher import AES
from Crypto.Util.Padding import unpad
import base64
from pathlib import Path
import zlib
import tex2img
from struct import unpack
from PIL import Image

def aes_cbc_decrypt(ciphertext: bytes, key: bytes, iv: bytes) -> bytes:

    cipher = AES.new(key, AES.MODE_CBC, iv)
    decrypted_data = cipher.decrypt(ciphertext)
    #plaintext = unpad(decrypted_data, AES.block_size)
    return decrypted_data

key = bytes.fromhex("3a 44 e1 a5 f0 47 50 93 37 bd 9e 59 54 7b 2e d6 31 2f 85 27 22 07 c7 b7 55 9f 70 9b b4 b7 34 e5")
iv = bytes.fromhex("00 0a 57 b0 3e 30 dc f9 58 06 8b 23 e1 b7 a8 71")

for item in Path("res").rglob("*.astc"):
    print("dec:" + str(item))
    cipherdata = item.read_bytes()
    plaindata = aes_cbc_decrypt(cipherdata, key, iv)
    try:
        plaindata = zlib.decompress(plaindata)
    except:
        print("你确定没处理两次？")
        continue
    if plaindata[:4] != b"\x13\xAB\xA1\x5C":
        item.write_bytes(plaindata)
        continue
    block_width = plaindata[4]
    block_height = plaindata[5]
    width = int.from_bytes(plaindata[7:10], "little")
    height = int.from_bytes(plaindata[10:13], "little")
    z = int.from_bytes(plaindata[13:16], "little")
    if z != 1:
        print("z is not one")
    outdata = tex2img.decompress_astc(plaindata[16:], width, height, block_width, block_height, False)
    im = Image.frombytes("RGBA", (width, height), outdata)

    outpath = item.with_suffix(".png")
    im.save(outpath)

开卷考试。。。。

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大老辛苦了，感谢您 :sob: :sob: :sob: