diff --git a/ckb-auth-rs/Cargo.toml b/ckb-auth-rs/Cargo.toml
index 7d09f5b..d431681 100644
--- a/ckb-auth-rs/Cargo.toml
+++ b/ckb-auth-rs/Cargo.toml
@@ -13,6 +13,5 @@ ckb2023 = ["ckb-std/ckb2023"]
 ckb-std = "0.14.3"
 
 [target.'cfg(target_arch = "riscv64")'.dependencies]
-log = { version = "0.4.17", default-features = false}
 hex = { version = "0.4.3", default-features = false, features = ["alloc"]}
 blake2b-rs = "0.2.0"
diff --git a/ckb-auth-rs/src/ckb_auth.rs b/ckb-auth-rs/src/ckb_auth.rs
index 24bae0d..0572753 100644
--- a/ckb-auth-rs/src/ckb_auth.rs
+++ b/ckb-auth-rs/src/ckb_auth.rs
@@ -13,7 +13,6 @@ use ckb_std::{
 use ckb_std::high_level::spawn_cell;
 use core::mem::size_of_val;
 use hex::encode;
-use log::info;
 
 pub fn ckb_auth(
     entry: &CkbEntryType,
@@ -108,7 +107,6 @@ impl CKBDLLoader {
         };
 
         if !has_lib {
-            info!("loading library");
             let size = size_of_val(&self.context);
             let lib = self
                 .context
@@ -163,9 +161,6 @@ fn ckb_auth_dl(
 
     match rc_code {
         0 => Ok(()),
-        _ => {
-            info!("run auth error({}) in dynamic linking", rc_code);
-            Err(CkbAuthError::RunDLError)
-        }
+        _ => Err(CkbAuthError::RunDLError),
     }
 }
diff --git a/ckb-auth-rs/src/lib.rs b/ckb-auth-rs/src/lib.rs
index b34d262..92cc5b5 100644
--- a/ckb-auth-rs/src/lib.rs
+++ b/ckb-auth-rs/src/lib.rs
@@ -17,12 +17,12 @@ pub use crate::generate_sighash_all::generate_sighash_all;
 #[cfg(target_arch = "riscv64")]
 use alloc::ffi::NulError;
 #[cfg(target_arch = "riscv64")]
-use log::info;
-
 #[cfg(target_arch = "riscv64")]
 use ckb_std::{ckb_types::core::ScriptHashType, error::SysError};
 #[cfg(not(target_arch = "riscv64"))]
 type SysError = u64;
+#[cfg(not(target_arch = "riscv64"))]
+type ScriptHashType = u8;
 
 #[derive(Clone)]
 pub enum AuthAlgorithmIdType {
@@ -81,15 +81,13 @@ pub enum CkbAuthError {
 #[cfg(target_arch = "riscv64")]
 impl From<SysError> for CkbAuthError {
     fn from(err: SysError) -> Self {
-        info!("Exec error: {:?}", err);
         Self::ExecError(err)
     }
 }
 
 #[cfg(target_arch = "riscv64")]
 impl From<NulError> for CkbAuthError {
-    fn from(err: NulError) -> Self {
-        info!("Exec encode args failed: {:?}", err);
+    fn from(_err: NulError) -> Self {
         Self::EncodeArgs
     }
 }
diff --git a/examples/auth-rust-demo/Cargo.lock b/examples/auth-rust-demo/Cargo.lock
index 1566d02..075d44c 100644
--- a/examples/auth-rust-demo/Cargo.lock
+++ b/examples/auth-rust-demo/Cargo.lock
@@ -56,7 +56,6 @@ dependencies = [
  "blake2b-rs",
  "ckb-std",
  "hex",
- "log",
 ]
 
 [[package]]
diff --git a/examples/auth-rust-demo/contracts/auth-rust-demo/src/entry.rs b/examples/auth-rust-demo/contracts/auth-rust-demo/src/entry.rs
index a0bc146..46d5283 100644
--- a/examples/auth-rust-demo/contracts/auth-rust-demo/src/entry.rs
+++ b/examples/auth-rust-demo/contracts/auth-rust-demo/src/entry.rs
@@ -1,5 +1,3 @@
-extern crate alloc;
-use log::info;
 // Import from `core` instead of from `std` since we are in no-std mode
 use core::result::Result;
 
@@ -25,7 +23,6 @@ use ckb_std::{
 // use ckb_std::debug;
 
 pub fn main() -> Result<(), Error> {
-    info!("auth-script-test entry");
     let mut pubkey_hash = [0u8; 20];
     let auth_id: u8;
     let entry_type: u8;
@@ -35,8 +32,6 @@ pub fn main() -> Result<(), Error> {
     // get message
     let message = generate_sighash_all().map_err(|_| Error::GeneratedMsgError)?;
     let signature = {
-        info!("run as standalone script");
-
         let script = load_script()?;
         let args: Bytes = script.args().unpack();
         if args.len() != 55 {
diff --git a/tests/auth-c-tests/Cargo.lock b/tests/auth-c-tests/Cargo.lock
index 2d6c846..e45465d 100644
--- a/tests/auth-c-tests/Cargo.lock
+++ b/tests/auth-c-tests/Cargo.lock
@@ -812,9 +812,9 @@ dependencies = [
 name = "ckb-auth-rs"
 version = "0.1.0"
 dependencies = [
+ "blake2b-rs",
  "ckb-std",
  "hex",
- "log",
 ]
 
 [[package]]
diff --git a/tests/auth-spawn-tests/Cargo.lock b/tests/auth-spawn-tests/Cargo.lock
index 701191f..6590a92 100644
--- a/tests/auth-spawn-tests/Cargo.lock
+++ b/tests/auth-spawn-tests/Cargo.lock
@@ -358,9 +358,9 @@ dependencies = [
 name = "ckb-auth-rs"
 version = "0.1.0"
 dependencies = [
+ "blake2b-rs",
  "ckb-std",
  "hex",
- "log 0.4.20",
 ]
 
 [[package]]
diff --git a/tools/ckb-auth-cli/Cargo.lock b/tools/ckb-auth-cli/Cargo.lock
index 10528fb..3160d57 100644
--- a/tools/ckb-auth-cli/Cargo.lock
+++ b/tools/ckb-auth-cli/Cargo.lock
@@ -323,9 +323,9 @@ dependencies = [
 name = "ckb-auth-rs"
 version = "0.1.0"
 dependencies = [
+ "blake2b-rs",
  "ckb-std",
  "hex",
- "log",
 ]
 
 [[package]]