#392 replace call to BigInteger.intValueExact to remain comptaible wi…

…th android api 30
mwiede · Sep 26, 2023 · d43dc81 · d43dc81
1 parent 5f092c8
commit d43dc81
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/main/java/com/jcraft/jsch/KeyPairPKCS8.java b/src/main/java/com/jcraft/jsch/KeyPairPKCS8.java
@@ -862,6 +862,13 @@ static Cipher getCipher(byte[] id, ASN1 encryptparams, byte[][] ivp) throws Exce
   }
 
   static int parseASN1IntegerAsInt(byte[] content) {
-    return new BigInteger(content).intValueExact();
+    BigInteger b = new BigInteger(content);
+    // https://github.com/mwiede/jsch/issues/392 not using intValueExact() because of Android
+    // incompatibility.
+    if (b.bitLength() <= 31) {
+      return b.intValue();
+    } else {
+      throw new ArithmeticException("BigInteger out of int range");
+    }
   }
 }