Python 使用 HMAC-SHA256 编码的消息

Question

在 python 中使用 HMAC-SHA256 对消息进行编码

import hmac
import hashlib

nonce = 1234
customer_id = 123232
api_key = 2342342348273482374343434
API_SECRET = 892374928347928347283473

message = nonce + customer_id + api_key
signature = hmac.new(
    API_SECRET,
    msg=message,
    digestmod=hashlib.sha256
).hexdigest().upper()

但我明白了

Traceback (most recent call last): File "gen.py", line 13, in digestmod=hashlib.sha256 File "/usr/lib/python2.7/hmac.py", line 136, in new return HMAC(key, msg, digestmod) File "/usr/lib/python2.7/hmac.py", line 71, in init if len(key) > blocksize: TypeError: object of type 'long' has no len()

有谁知道崩溃的原因吗？

Answer 1

您使用的数字 api 需要 string/bytes。

# python 2
import hmac
import hashlib

nonce = 1234
customer_id = 123232
api_key = 2342342348273482374343434
API_SECRET = 892374928347928347283473

message = '{} {} {}'.format(nonce, customer_id, api_key)
signature = hmac.new(
    str(API_SECRET),
    msg=message,
    digestmod=hashlib.sha256
).hexdigest().upper()

print signature

Answer 2

如果您想在 python3 中执行，您应该执行以下操作：

#python 3
import hmac
import hashlib

nonce = 1
customer_id = 123456
API_SECRET = 'thekey'
api_key = 'thapikey'

message = '{} {} {}'.format(nonce, customer_id, api_key)

signature = hmac.new(bytes(API_SECRET , 'latin-1'), msg = bytes(message , 'latin-1'), digestmod = hashlib.sha256).hexdigest().upper()
print(signature)

Python 使用 HMAC-SHA256 编码的消息

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