hashkey

// mainactivity.kt 에서 진행후에, 하단 Logcat에서 hash 검색하면 키 나옴.

package <패키지명>

import android.content.pm.PackageManager
import android.os.Build
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Base64
import android.util.Log
import androidx.annotation.RequiresApi
import java.security.MessageDigest
import java.util.*
 
class MainActivity : AppCompatActivity() {
    @RequiresApi(Build.VERSION_CODES.P)
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        try {
            val info = packageManager.getPackageInfo(packageName, PackageManager.GET_SIGNING_CERTIFICATES)
            val signatures = info.signingInfo.apkContentsSigners
            val md = MessageDigest.getInstance("SHA")
            for (signature in signatures) {
                val md: MessageDigest
                md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                val key = String(Base64.encode(md.digest(), 0))
                Log.d("Hash key:", "!!!!!!!$key!!!!!!")
            }
        } catch (e: Exception) {
            Log.e("name not found", e.toString())
        }
    }
}