From 294bb3977441b5b8727b82f4453d12892a248e44 Mon Sep 17 00:00:00 2001 From: Kenny Root Date: Sun, 5 Apr 2015 23:34:54 -0700 Subject: ECDH there should be no negative bigint Since the hash is over the canonical values of the agreed parameters when the shared secret was encoded as a negative biginteger, the two sides didn't agree. Make sure this doesn't occur by setting the bigint signum to 1. Change-Id: Ib0581cd7dc280dcce8cc3309d7102f8f5a444158 --- lib/src/main/java/com/trilead/ssh2/signature/ECDSASHA2Verify.java | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'lib/src/main/java/com/trilead/ssh2/signature') diff --git a/lib/src/main/java/com/trilead/ssh2/signature/ECDSASHA2Verify.java b/lib/src/main/java/com/trilead/ssh2/signature/ECDSASHA2Verify.java index f139cdf..7d8dd3e 100644 --- a/lib/src/main/java/com/trilead/ssh2/signature/ECDSASHA2Verify.java +++ b/lib/src/main/java/com/trilead/ssh2/signature/ECDSASHA2Verify.java @@ -294,8 +294,8 @@ public class ECDSASHA2Verify { System.arraycopy(sig, 4, rArray, 0, rLength); System.arraycopy(sig, 6 + rLength, sArray, 0, sLength); - BigInteger r = new BigInteger(rArray); - BigInteger s = new BigInteger(sArray); + BigInteger r = new BigInteger(1, rArray); + BigInteger s = new BigInteger(1, sArray); // Write the to its own types writer. TypesWriter rsWriter = new TypesWriter(); -- cgit v1.2.3