Add decompiled APK source code (JADX)

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

decompiled/sources/com/facebook/internal/security/CertificateUtil.java

@@ -0,0 +1,50 @@
+package com.facebook.internal.security;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.pm.Signature;
+import android.util.Base64;
+import androidx.annotation.VisibleForTesting;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes2.dex */
+public final class CertificateUtil {
+    public static final String DELIMITER = ":";
+    public static final CertificateUtil INSTANCE = new CertificateUtil();
+
+    @VisibleForTesting(otherwise = 2)
+    public static /* synthetic */ void getDELIMITER$facebook_core_release$annotations() {
+    }
+
+    private CertificateUtil() {
+    }
+
+    public static final String getCertificateHash(Context ctx) {
+        Intrinsics.checkNotNullParameter(ctx, "ctx");
+        try {
+            Signature[] signatures = ctx.getPackageManager().getPackageInfo(ctx.getPackageName(), 64).signatures;
+            StringBuilder sb = new StringBuilder();
+            MessageDigest messageDigest = MessageDigest.getInstance("SHA1");
+            Intrinsics.checkNotNullExpressionValue(signatures, "signatures");
+            int length = signatures.length;
+            int i = 0;
+            while (i < length) {
+                Signature signature = signatures[i];
+                i++;
+                messageDigest.update(signature.toByteArray());
+                sb.append(Base64.encodeToString(messageDigest.digest(), 0));
+                sb.append(DELIMITER);
+            }
+            if (sb.length() > 0) {
+                sb.setLength(sb.length() - 1);
+            }
+            String sb2 = sb.toString();
+            Intrinsics.checkNotNullExpressionValue(sb2, "sb.toString()");
+            return sb2;
+        } catch (PackageManager.NameNotFoundException | NoSuchAlgorithmException unused) {
+            return "";
+        }
+    }
+}