fix lint issue

Signed-off-by: noelwei <[email protected]>

Author: noel2004

Cargo.lock

@@ -53,12 +53,13 @@ impl ProofVerifier for EuclidVerifier {
     }
 
     fn dump_vk(&self, file: &Path) {
+        use base64::{prelude::BASE64_STANDARD, Engine};
         let f = File::create(file).expect("Failed to open file to dump VK");
 
         let dump = VKDump {
-            chunk_vk: base64::encode(self.chunk_verifier.get_app_vk()),
-            batch_vk: base64::encode(self.batch_verifier.get_app_vk()),
-            bundle_vk: base64::encode(self.bundle_verifier.get_app_vk()),
+            chunk_vk: BASE64_STANDARD.encode(self.chunk_verifier.get_app_vk()),
+            batch_vk: BASE64_STANDARD.encode(self.batch_verifier.get_app_vk()),
+            bundle_vk: BASE64_STANDARD.encode(self.bundle_verifier.get_app_vk()),
         };
         serde_json::to_writer(f, &dump).expect("Failed to dump VK");
     }

common/libzkp/impl/src/verifier/euclid.rs

@@ -53,12 +53,13 @@ impl ProofVerifier for EuclidV2Verifier {
     }
 
     fn dump_vk(&self, file: &Path) {
+        use base64::{prelude::BASE64_STANDARD, Engine};
         let f = File::create(file).expect("Failed to open file to dump VK");
 
         let dump = VKDump {
-            chunk_vk: base64::encode(self.chunk_verifier.get_app_vk()),
-            batch_vk: base64::encode(self.batch_verifier.get_app_vk()),
-            bundle_vk: base64::encode(self.bundle_verifier.get_app_vk()),
+            chunk_vk: BASE64_STANDARD.encode(self.chunk_verifier.get_app_vk()),
+            batch_vk: BASE64_STANDARD.encode(self.batch_verifier.get_app_vk()),
+            bundle_vk: BASE64_STANDARD.encode(self.bundle_verifier.get_app_vk()),
         };
         serde_json::to_writer(f, &dump).expect("Failed to dump VK");
     }

common/libzkp/impl/src/verifier/euclidv2.rs

@@ -8,7 +8,7 @@ edition.workspace = true
 [dependencies]
 env_logger = "0.11.3"
 clap = { version = "4.5", features = ["derive"] }
-base64 = "0.13.1"
+base64.workspace = true
 
 # Re-export from sbv
 anyhow = "1.0"

zkvm-prover/bin/Cargo.toml

@@ -3,6 +3,7 @@ use crate::zk_circuits_handler::{
 };
 use anyhow::{Result, anyhow};
 use async_trait::async_trait;
+use base64::{Engine, prelude::BASE64_STANDARD};
 use scroll_proving_sdk::{
     config::Config as SdkConfig,
     prover::{
@@ -72,7 +73,7 @@ impl ProvingService for LocalProver {
                 let vk = handler.get_vk(*proof_type).await;
 
                 if let Some(vk) = vk {
-                    vks.push(base64::encode(vk));
+                    vks.push(BASE64_STANDARD.encode(vk));
                 }
             }
         }