Merge remote-tracking branch 'public/master' into releasePreparations

tls-attacker · Jul 16, 2022 · ce37059 · ce37059
2 parents b58831e + efb90e2
commit ce37059
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/TLS-Core/src/main/java/de/rub/nds/tlsattacker/core/crypto/KeyShareCalculator.java b/TLS-Core/src/main/java/de/rub/nds/tlsattacker/core/crypto/KeyShareCalculator.java
@@ -96,7 +96,7 @@ public static byte[] computeSharedSecret(NamedGroup group, BigInteger privateKey
             }
         } else {
             FFDHEGroup ffdheGroup = GroupFactory.getGroup(group);
-            BigInteger sharedElement = new BigInteger(publicKey).modPow(privateKey.abs(), ffdheGroup.getP().abs());
+            BigInteger sharedElement = new BigInteger(1, publicKey).modPow(privateKey.abs(), ffdheGroup.getP().abs());
             return ArrayConverter.bigIntegerToNullPaddedByteArray(sharedElement,
                 ffdheGroup.getP().bitLength() / Bits.IN_A_BYTE);
         }