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In this article Xiaobian for you to introduce in detail the "android signature algorithm how to achieve", the content is detailed, the steps are clear, the details are handled properly, I hope this article "android signature algorithm how to achieve" article can help you solve doubts, following the editor's ideas slowly in depth, together to learn new knowledge.

1 、 The packet grab tool grabs a request POST / rest/n/feed/nearby?app=0&kpf=ANDROID_PHONE&ver=6.5&c=HUAWEI_KWAI&mod=HUAWEI%28HWI-AL00%29&appver=6.5.5.9591&ftt=&isp=CUCC&kpn=KUAISHOU&lon=102.698614&language=zh-cn&sys=ANDROID_9&max_memory=384&ud=0&country_code=cn&oc=HUAWEI_KWAI&hotfix_ver=&did_gt=1584622753889&iuid=&net=WIFI&did=ANDROID_9ba4839bf09a1834&lat=25.002707 HTTP/1.1 type=10&page=1&token=&count=20&id=9&refreshTimes=0&coldStart=false& Source=1&browseType=1&seid=60ed7899-e25e-4b9b-b971-3f75b4df00fd&os=android&sig=75e33af6cb4a795c039e0f94a9bd27bf&client_key=3c2cd3f32, Analysis.

You can see that among the requested parameters, there is a field called sig. The main work we need to do is to calculate the sig through the parameters. Through reverse analysis, we find that the sig is calculated as follows:

Put the parameters in url into map1

Put the parameters in the form into map2

Put the elements in map1 and map2 into arraylist in the form of key=value

Sort arraylist

Concatenate the elements in arraylist into a string str in order

Convert str to bytearray

Call CPU.getClock (), pass in str to calculate the signature

CPU.getClock () is a native method that is implemented in libcore.so

3. Put the code from sig import signatureimport requestspara = {"app": "0", "kpf": "ANDROID_PHONE", "ver": "6.5", "c": "HUAWEI_KWAI", "mod": "HUAWEI (HWI-AL00)", "appver": "6.5.5.9591", # "ftt": "", "isp": "CUCC", "kpn": "KUAISHOU" # "lon": "102.698614", "language": "zh-cn", "sys": "ANDROID_9", "max_memory": "384", "ud": "0", "country_code": "cn", "oc": "HUAWEI_KWAI", # "hotfix_ver": "", "did_gt": "1584622753889", # "iuid": "", "net": "WIFI" "did": "ANDROID_9ba4839bf09a1834", # "lat": "25.002707"} post = {"type": "10", "page": "1", "token": "count": "20", "id": "9", "refreshTimes": "0", "coldStart": "false", "source": "1", "browseType": "1" "seid": "60ed7899-e25e-4b9b-b971-3f75b4df00fd", "os": "android", "client_key": "3c2cd3f3"} j = signature.WeChat_YY_yhzf.sig_post ("https://apissl.ksapisrv.com/rest/n/feed/nearby",para,post)header = {" Content-Type ":" application/x-www-form-urlencoded "} resp = requests.post (j [" para "], data=j [" data "], headers=header) print (resp.text)

The request result is as follows:

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