Google Play应用签名密钥哈希 [英] Google play app signing key hash

问题描述

我选择了谷歌播放应用程序签名，我知道谷歌改变了应用程序的签名密钥，我发现了沙1证书，但无法找到keyhash。

如何获得我发布的应用程序的keyhash是否有方法从证书中提取它？ 解决方案

您可以从Sha1证书签名中提取keyhash 。密钥散列通常以下列方式提取：

  public static String getKeyHash（final Context context）{
 PackageInfo packageInfo = getPackageInfo（context，PackageManager.GET_SIGNATURES）; 
 if（packageInfo == null）
 return null; 
 
（签名签名：packageInfo.signatures）{
尝试{
 MessageDigest md = MessageDigest.getInstance（SHA）; 
 md.update（signature.toByteArray（））; 
返回Base64.encodeToString（md.digest（），Base64.NO_WRAP）; 
} catch（NoSuchAlgorithmException e）{
 Log.w（TAG，Unable to get MessageDigest。signature =+ signature，e）; 
} 
} 
返回null; 
 
 $ / code> 

您可以看到SHA-1版本的签名是Base64编码的。

在Google Play开发者控制台中的应用签名菜单下，您将看到Sha-1证书签名，如下所示：

  SHA1：3B：DA：A0：5B：4F：35：71：02：4E：27：22：B9：AC：B2：77：2F：9D：A9： 9B：D9 
  

基本上，你所要做的就是把它变成一个字节数组和Base64编码那个字节数组。你可以这样做：

  byte [] sha1 = {
 0x3B，（byte）0xDA，（byte） （字节）0xA0，（字节）0xB2,0x77,0x2c，（字节）0x9D，（字节）0xA9，（字节）0xA0，0x4F，0x35,0x71,0x02,0x4e，0x27,0x22， 0x9B，（byte）0xD9 
}; 
 Log.e（keyhash，Base64.encodeToString（sha1，Base64.NO_WRAP））; 
  

您可以将此keyhash注册到facebook android登录设置或任何您喜欢的位置。

I have opted for google play app signing and i understand that google changes the signing keys for the app and I found the Sha 1 certificate but couldnt find the keyhash .

How can i get the keyhash of my released app is there a way to extract it from the certificate?

解决方案

You can extract keyhash from the Sha1 certificate signature. Key hashes are usually extracted in the following way:

public static String getKeyHash(final Context context) {
    PackageInfo packageInfo = getPackageInfo(context, PackageManager.GET_SIGNATURES);
    if (packageInfo == null)
        return null;

    for (Signature signature : packageInfo.signatures) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            return Base64.encodeToString(md.digest(), Base64.NO_WRAP);
        } catch (NoSuchAlgorithmException e) {
            Log.w(TAG, "Unable to get MessageDigest. signature=" + signature, e);
        }
    }
    return null;
}

You can see that SHA-1 version of signature is Base64 encoded.

Under App Signing menu in Google play developer console, you will see Sha-1 certificate signature that looks like this:

SHA1: 3B:DA:A0:5B:4F:35:71:02:4E:27:22:B9:AC:B2:77:2F:9D:A9:9B:D9

Basically, what you have to do is to change this into a byte array and Base64 encode that byte array. You can do something like:

byte[] sha1 = {
    0x3B, (byte)0xDA, (byte)0xA0, 0x5B, 0x4F, 0x35, 0x71, 0x02, 0x4E, 0x27, 0x22, (byte)0xB9, (byte)0xAc, (byte)0xB2, 0x77, 0x2F, (byte)0x9D, (byte)0xA9, (byte)0x9B, (byte)0xD9
};
Log.e("keyhash", Base64.encodeToString(sha1, Base64.NO_WRAP));

You can register this keyhash to facebook android login settings or wherever you like.

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