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Code Issues Packages Projects Releases Wiki Activity

Log private key info

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M66B
2025-06-01 11:16:31 +02:00
parent 5bce8e38d1
commit 50b82b9086
1 changed files with 25 additions and 0 deletions
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25
app/src/main/java/eu/faircode/email/FragmentCompose.java
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@@ -62,6 +62,8 @@ import android.provider.ContactsContract;
import android.provider.MediaStore;
import android.provider.Settings;
import android.security.KeyChain;
import android.security.keystore.KeyInfo;
import android.security.keystore.KeyProperties;
import android.system.ErrnoException;
import android.text.Editable;
import android.text.Html;
@@ -186,6 +188,7 @@ import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.security.GeneralSecurityException;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.PrivateKey;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
@@ -4369,6 +4372,7 @@ public class FragmentCompose extends FragmentBase {
boolean check_certificate = prefs.getBoolean("check_certificate", true);
boolean check_key_usage = prefs.getBoolean("check_key_usage", false);
boolean experiments = prefs.getBoolean("experiments", false);
boolean debug = prefs.getBoolean("debug", false);
File tmp = Helper.ensureExists(context, "encryption");
@@ -4425,6 +4429,27 @@ public class FragmentCompose extends FragmentBase {
throw new IllegalArgumentException("Private key missing");
Log.i("S/MIME privkey algo=" + privkey.getAlgorithm());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && (BuildConfig.DEBUG || debug)) {
KeyFactory keyFactory = KeyFactory.getInstance(privkey.getAlgorithm(), "AndroidKeyStore");
KeyInfo info = keyFactory.getKeySpec(privkey, KeyInfo.class);
if (info != null) {
int p = info.getPurposes();
List<String> purposes = new ArrayList<>();
if ((p & KeyProperties.PURPOSE_SIGN) != 0)
purposes.add("sign");
else if ((p & KeyProperties.PURPOSE_VERIFY) != 0)
purposes.add("verify");
if ((p & KeyProperties.PURPOSE_ENCRYPT) != 0)
purposes.add("encrypt");
if ((p & KeyProperties.PURPOSE_DECRYPT) != 0)
purposes.add("decrypt");
Log.i("Private key info" +
" size=" + info.getKeySize() +
" hardware=" + info.isInsideSecureHardware() +
" purposes=0x" + Integer.toHexString(p) + "/" + TextUtils.join(",", purposes));
}
}
PrivateKey sprivkey = privkey;
if (salias != null && !salias.equals(alias))
try {