腾讯云get签名鉴权失败

import hashlib
import hmac
import urllib.parse

def sign_request(method, url, params, secret_key):
    sorted_params = sorted(params.items())
    query_string = urllib.parse.urlencode(sorted_params)
    string_to_sign = f"{method.upper()}&%2F&{urllib.parse.quote(query_string, safe='')}"
    signature = hmac.new(secret_key.encode(), string_to_sign.encode(), hashlib.sha1).digest()
    return urllib.parse.quote(base64.b64encode(signature))

import time
import base64
import hashlib
import hmac
import urllib.parse

def get_signature(method, url, params, secret_key):
    params['Timestamp'] = int(time.time())
    sorted_params = sorted(params.items())
    query_string = urllib.parse.urlencode(sorted_params)
    string_to_sign = f"{method.upper()}&%2F&{urllib.parse.quote(query_string, safe='')}"
    signature = hmac.new(secret_key.encode(), string_to_sign.encode(), hashlib.sha1).digest()
    return urllib.parse.quote(base64.b64encode(signature))

# Example usage
method = "GET"
url = "/example/path"
params = {
    'param1': 'value1',
    'param2': 'value2'
}
secret_key = "your_secret_key_here"

signature = get_signature(method, url, params, secret_key)
print(f"Generated Signature: {signature}")