feat(aquavm-air)!: signature checking (#607)

crates/air-lib/interpreter-data/src/interpreter_data/errors.rs

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2023 Fluence Labs Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use thiserror::Error as ThisError;
+#[derive(Debug, ThisError)]
+pub enum DataVerifierError {
+    #[error(transparent)]
+    MalformedKey(fluence_keypair::error::DecodingError),
+
+    #[error(transparent)]
+    MalformedSignature(fluence_keypair::error::DecodingError),
+
+    #[error("peer_id doens't match any available public key: {0:?}")]
+    PeerIdNotFound(String),
+
+    #[error("signature mismatch for {peer_id:?}: {error:?}, values: CIDS: {cids:?}")]
+    SignatureMismatch {
+        error: Box<fluence_keypair::error::VerificationError>,
+        cids: Vec<Box<str>>,
+        peer_id: String,
+    },
+
+    #[error(
+        "inconsistent CID multisets on merge for peer {peer_id:?}, prev: {larger_cids:?}, current: {smaller_cids:?}"
+    )]
+    MergeMismatch {
+        peer_id: String,
+        larger_cids: Vec<Box<str>>,
+        smaller_cids: Vec<Box<str>>,
+    },
+}