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do not use BC provider on android 22+

This commit is contained in:
Daniel Gultsch 2018-09-17 17:47:36 +02:00
parent 4bc9713b80
commit 67e7d2cf9e
2 changed files with 7 additions and 2 deletions
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5
src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
View File

@ -24,6 +24,7 @@ import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.utils.Compatibility;
import eu.siacs.conversations.xml.Element;
import rocks.xmpp.addr.Jid;
@ -180,7 +181,7 @@ public class XmppAxolotlMessage {
try {
SecretKey secretKey = new SecretKeySpec(innerKey, KEYTYPE);
IvParameterSpec ivSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(CIPHERMODE, PROVIDER);
Cipher cipher = Compatibility.twentyTwo() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivSpec);
this.ciphertext = cipher.doFinal(Config.OMEMO_PADDING ? getPaddedBytes(plaintext) : plaintext.getBytes());
if (Config.PUT_AUTH_TAG_INTO_KEY && this.ciphertext != null) {
@ -296,7 +297,7 @@ public class XmppAxolotlMessage {
key = newKey;
}
Cipher cipher = Cipher.getInstance(CIPHERMODE, PROVIDER);
Cipher cipher = Compatibility.twentyTwo() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
SecretKeySpec keySpec = new SecretKeySpec(key, KEYTYPE);
IvParameterSpec ivSpec = new IvParameterSpec(iv);

4
src/main/java/eu/siacs/conversations/utils/Compatibility.java
View File

@ -32,6 +32,10 @@ public class Compatibility {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
}
public static boolean twentyTwo() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
}
private static boolean getBooleanPreference(Context context, String name, @BoolRes int res) {
return getPreferences(context).getBoolean(name, context.getResources().getBoolean(res));
}