ECKey: fix usage of deprecated method ASN1TaggedObject.getObject()

schildbach · Jun 24, 2024 · b1762cf · b1762cf
1 parent 4059c95
commit b1762cf
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/core/src/main/java/org/bitcoinj/core/ECKey.java b/core/src/main/java/org/bitcoinj/core/ECKey.java
@@ -829,7 +829,8 @@ private static ECKey extractKeyFromASN1(byte[] asn1privkey) {
 
             ASN1TaggedObject pubkey = (ASN1TaggedObject) seq.getObjectAt(3);
             checkArgument(pubkey.getTagNo() == 1, "Input has 'publicKey' with bad tag number");
-            byte[] pubbits = ((DERBitString)pubkey.getObject()).getBytes();
+            checkArgument(pubkey.getTagClass() == BERTags.CONTEXT_SPECIFIC, "Input has 'publicKey' with bad tag class");
+            byte[] pubbits = ((DERBitString) pubkey.getBaseObject()).getBytes();
             checkArgument(pubbits.length == 33 || pubbits.length == 65, "Input has 'publicKey' with invalid length");
             int encoding = pubbits[0] & 0xFF;
             // Only allow compressed(2,3) and uncompressed(4), not infinity(0) or hybrid(6,7)