diff --git a/examples/common.rs b/examples/common.rs
index 3f256afa..3505a1f2 100644
--- a/examples/common.rs
+++ b/examples/common.rs
@@ -67,7 +67,10 @@ pub fn aes_decrypt(key: &[u8], aead_pack: AEAD) -> Vec<u8> {
     let nonce: Vec<u8> = repeat(3).take(12).collect();
     let aad: [u8; 0] = [];
     let mut gcm = AesGcm::new(KeySize256, key, &nonce[..], &aad);
-    gcm.decrypt(&aead_pack.ciphertext[..], &mut out, &aead_pack.tag[..]);
+    let successful_decrypt = gcm.decrypt(&aead_pack.ciphertext[..], &mut out, &aead_pack.tag[..]);
+        if !successful_decrypt {
+            panic!("Error: Could not decrypt AES ciphertext");
+        }
     out
 }
 
diff --git a/examples/gg20_sign_client.rs b/examples/gg20_sign_client.rs
index 06fb2b8e..f735172c 100644
--- a/examples/gg20_sign_client.rs
+++ b/examples/gg20_sign_client.rs
@@ -170,6 +170,11 @@ fn main() {
             j += 1;
         }
     }
+
+    assert_eq!(signers_vec.len(), (THRESHOLD + 1) as usize);
+    if signers_vec.len()> (THRESHOLD + 1) as usize{
+        panic!("The assumption is that number of shares = threshold + 1");
+    }
     let mut enc_key: Vec<Vec<u8>> = vec![];
     for (i, k) in signers_vec.iter().enumerate() {
         if *k != signers_vec[party_num_int as usize - 1] as usize {
diff --git a/params.json b/params.json
index 8dcdefd6..a03898e5 100644
--- a/params.json
+++ b/params.json
@@ -1 +1 @@
-{"parties":"3", "threshold":"1"}
+{"parties":"3", "threshold":"2"}