计算API所需: 以 AES CBC 编码

我实在对於密码学非常不熟悉，所以找了一下，目前最适合我使用的范例程序码来自於 …

将对方的程序码加以修改後，整理如下

 
from base64 import b64encode
from Crypto.Cipher import AES
from Crypto.Random import get_random_bytes
from Crypto.Util.Padding import pad
import json

## 只有 data / key / iv 进行了替换
data = '{"ShopNo":"NA0001_001","OrderNo":"201807111119291750","Amount":50000,"CurrencyID":"TWD","PayType":"C","ATMParam":{},"CardParam":{"AutoBilling":"N","ExpMinutes":30},"PrdtName":"信用卡订单","ReturnURL":"http://10.11.22.113:8803/QPay.ApiClient-Sandbox/Store/Return","BackendURL":"https://sandbox.sinopac.com/funBIZ.ApiClient/AutoPush/PushSuccess"}'.encode('utf-8')
key = "4DA70F5E2D800D50B43ED3B537480C64".encode('utf-8')
iv = "346BBE8E3F34FFEA".encode('utf-8') #get_random_bytes(16)

cipher = AES.new(key=key, mode=AES.MODE_CBC, iv=iv)
ct_bytes = cipher.encrypt(pad(data, AES.block_size))
iv = b64encode(iv).decode('utf-8')
ct = b64encode(ct_bytes).decode('utf-8')
result = json.dumps({'iv':iv, 'ciphertext':ct})
print(result) 

# 此处的  ct 就是编码後的 data

但是出来的结果与范例的不同，因为文件规格中说明 "最後将讯息内文以AES CBC方式加密，加密後的Byte以十六进制２位数字串相加" … 这实在是看不太懂，明天再来试试看

如果真的不行的话，可能要换成玩股票那组 API 了