1.关于python 的hmac加密

 import base64
 import hmac
 import urllib
 from hashlib import sha1
 expires = b""  # 过期时间戳
 uuid = 'a2fafbbf-8877-4f73-8527-4707bf4df0b0'.encode(encoding="utf-8")  # 授权id
 key ='abcdefg123abcdefg123abcdefg123'  # 渠道key
 h = hmac.new(key.encode(encoding="utf-8"), 'GET\n%s\n%s'.encode(encoding="utf8") % (expires, uuid), sha1)
 h.update(msg=b"ssss")  # 其中如果消息过长的话可以使用update方法进行再次更新
 signature = base64.urlsafe_b64encode(h.digest())
 print(signature)

import base64
import hmac
import urllib
from hashlib import sha1
import json
row_data = {
  "project_name": "授权项目",
  "project_desc": "项目描述",
  "project_where_to_put": "项目投放渠道"
}

key = b"abcdefg123abcdefg123abcdefg123"
payload = base64.urlsafe_b64encode(json.dumps(row_data).encode(encoding="utf8"))
h = hmac.new(key, payload, sha1)
signature = base64.urlsafe_b64encode(h.digest())
print(signature)