diff --git a/attestation-agent/attestation-agent/src/bin/grpc-aa/server.rs b/attestation-agent/attestation-agent/src/bin/grpc-aa/server.rs
index 5e3147b36..a4b5053e9 100644
--- a/attestation-agent/attestation-agent/src/bin/grpc-aa/server.rs
+++ b/attestation-agent/attestation-agent/src/bin/grpc-aa/server.rs
@@ -8,7 +8,7 @@ use attestation::attestation_agent_service_server::{
     AttestationAgentService, AttestationAgentServiceServer,
 };
 use attestation::{
-    CheckInitDataRequest, CheckInitDataResponse, ExtendRuntimeMeasurementRequest,
+    BindInitDataRequest, BindInitDataResponse, ExtendRuntimeMeasurementRequest,
     ExtendRuntimeMeasurementResponse, GetEvidenceRequest, GetEvidenceResponse, GetTeeTypeRequest,
     GetTeeTypeResponse, GetTokenRequest, GetTokenResponse, UpdateConfigurationRequest,
     UpdateConfigurationResponse,
@@ -108,25 +108,25 @@ impl AttestationAgentService for AA {
         Result::Ok(Response::new(reply))
     }
 
-    async fn check_init_data(
+    async fn bind_init_data(
         &self,
-        request: Request<CheckInitDataRequest>,
-    ) -> Result<Response<CheckInitDataResponse>, Status> {
+        request: Request<BindInitDataRequest>,
+    ) -> Result<Response<BindInitDataResponse>, Status> {
         let request = request.into_inner();
 
-        debug!("AA (grpc): check init data ...");
+        debug!("AA (grpc): bind init data ...");
 
         self.inner
-            .check_init_data(&request.digest)
+            .bind_init_data(&request.digest)
             .await
             .map_err(|e| {
-                error!("AA (grpc): check init data failed:\n{e:?}");
-                Status::internal(format!("[ERROR:{AGENT_NAME}] AA check init data failed"))
+                error!("AA (grpc): binding init data failed:\n{e:?}");
+                Status::internal(format!("[ERROR:{AGENT_NAME}] AA binding init data failed"))
             })?;
 
-        debug!("AA (grpc): Check init data successfully!");
+        debug!("AA (grpc): init data binding successfully!");
 
-        let reply = CheckInitDataResponse {};
+        let reply = BindInitDataResponse {};
 
         Result::Ok(Response::new(reply))
     }
diff --git a/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent.rs b/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent.rs
index 4b6cfcac1..5ce4693dc 100644
--- a/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent.rs
+++ b/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent.rs
@@ -931,25 +931,25 @@ impl ::protobuf::reflect::ProtobufValue for InitDataPlaintext {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
-// @@protoc_insertion_point(message:attestation_agent.CheckInitDataRequest)
+// @@protoc_insertion_point(message:attestation_agent.BindInitDataRequest)
 #[derive(PartialEq,Clone,Default,Debug)]
-pub struct CheckInitDataRequest {
+pub struct BindInitDataRequest {
     // message fields
-    // @@protoc_insertion_point(field:attestation_agent.CheckInitDataRequest.Digest)
+    // @@protoc_insertion_point(field:attestation_agent.BindInitDataRequest.Digest)
     pub Digest: ::std::vec::Vec<u8>,
     // special fields
-    // @@protoc_insertion_point(special_field:attestation_agent.CheckInitDataRequest.special_fields)
+    // @@protoc_insertion_point(special_field:attestation_agent.BindInitDataRequest.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
 }
 
-impl<'a> ::std::default::Default for &'a CheckInitDataRequest {
-    fn default() -> &'a CheckInitDataRequest {
-        <CheckInitDataRequest as ::protobuf::Message>::default_instance()
+impl<'a> ::std::default::Default for &'a BindInitDataRequest {
+    fn default() -> &'a BindInitDataRequest {
+        <BindInitDataRequest as ::protobuf::Message>::default_instance()
     }
 }
 
-impl CheckInitDataRequest {
-    pub fn new() -> CheckInitDataRequest {
+impl BindInitDataRequest {
+    pub fn new() -> BindInitDataRequest {
         ::std::default::Default::default()
     }
 
@@ -958,19 +958,19 @@ impl CheckInitDataRequest {
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
         fields.push(::protobuf::reflect::rt::v2::make_simpler_field_accessor::<_, _>(
             "Digest",
-            |m: &CheckInitDataRequest| { &m.Digest },
-            |m: &mut CheckInitDataRequest| { &mut m.Digest },
+            |m: &BindInitDataRequest| { &m.Digest },
+            |m: &mut BindInitDataRequest| { &mut m.Digest },
         ));
-        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<CheckInitDataRequest>(
-            "CheckInitDataRequest",
+        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<BindInitDataRequest>(
+            "BindInitDataRequest",
             fields,
             oneofs,
         )
     }
 }
 
-impl ::protobuf::Message for CheckInitDataRequest {
-    const NAME: &'static str = "CheckInitDataRequest";
+impl ::protobuf::Message for BindInitDataRequest {
+    const NAME: &'static str = "BindInitDataRequest";
 
     fn is_initialized(&self) -> bool {
         true
@@ -1018,8 +1018,8 @@ impl ::protobuf::Message for CheckInitDataRequest {
         &mut self.special_fields
     }
 
-    fn new() -> CheckInitDataRequest {
-        CheckInitDataRequest::new()
+    fn new() -> BindInitDataRequest {
+        BindInitDataRequest::new()
     }
 
     fn clear(&mut self) {
@@ -1027,8 +1027,8 @@ impl ::protobuf::Message for CheckInitDataRequest {
         self.special_fields.clear();
     }
 
-    fn default_instance() -> &'static CheckInitDataRequest {
-        static instance: CheckInitDataRequest = CheckInitDataRequest {
+    fn default_instance() -> &'static BindInitDataRequest {
+        static instance: BindInitDataRequest = BindInitDataRequest {
             Digest: ::std::vec::Vec::new(),
             special_fields: ::protobuf::SpecialFields::new(),
         };
@@ -1036,55 +1036,55 @@ impl ::protobuf::Message for CheckInitDataRequest {
     }
 }
 
-impl ::protobuf::MessageFull for CheckInitDataRequest {
+impl ::protobuf::MessageFull for BindInitDataRequest {
     fn descriptor() -> ::protobuf::reflect::MessageDescriptor {
         static descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::rt::Lazy::new();
-        descriptor.get(|| file_descriptor().message_by_package_relative_name("CheckInitDataRequest").unwrap()).clone()
+        descriptor.get(|| file_descriptor().message_by_package_relative_name("BindInitDataRequest").unwrap()).clone()
     }
 }
 
-impl ::std::fmt::Display for CheckInitDataRequest {
+impl ::std::fmt::Display for BindInitDataRequest {
     fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         ::protobuf::text_format::fmt(self, f)
     }
 }
 
-impl ::protobuf::reflect::ProtobufValue for CheckInitDataRequest {
+impl ::protobuf::reflect::ProtobufValue for BindInitDataRequest {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
-// @@protoc_insertion_point(message:attestation_agent.CheckInitDataResponse)
+// @@protoc_insertion_point(message:attestation_agent.BindInitDataResponse)
 #[derive(PartialEq,Clone,Default,Debug)]
-pub struct CheckInitDataResponse {
+pub struct BindInitDataResponse {
     // special fields
-    // @@protoc_insertion_point(special_field:attestation_agent.CheckInitDataResponse.special_fields)
+    // @@protoc_insertion_point(special_field:attestation_agent.BindInitDataResponse.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
 }
 
-impl<'a> ::std::default::Default for &'a CheckInitDataResponse {
-    fn default() -> &'a CheckInitDataResponse {
-        <CheckInitDataResponse as ::protobuf::Message>::default_instance()
+impl<'a> ::std::default::Default for &'a BindInitDataResponse {
+    fn default() -> &'a BindInitDataResponse {
+        <BindInitDataResponse as ::protobuf::Message>::default_instance()
     }
 }
 
-impl CheckInitDataResponse {
-    pub fn new() -> CheckInitDataResponse {
+impl BindInitDataResponse {
+    pub fn new() -> BindInitDataResponse {
         ::std::default::Default::default()
     }
 
     fn generated_message_descriptor_data() -> ::protobuf::reflect::GeneratedMessageDescriptorData {
         let mut fields = ::std::vec::Vec::with_capacity(0);
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
-        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<CheckInitDataResponse>(
-            "CheckInitDataResponse",
+        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<BindInitDataResponse>(
+            "BindInitDataResponse",
             fields,
             oneofs,
         )
     }
 }
 
-impl ::protobuf::Message for CheckInitDataResponse {
-    const NAME: &'static str = "CheckInitDataResponse";
+impl ::protobuf::Message for BindInitDataResponse {
+    const NAME: &'static str = "BindInitDataResponse";
 
     fn is_initialized(&self) -> bool {
         true
@@ -1123,36 +1123,36 @@ impl ::protobuf::Message for CheckInitDataResponse {
         &mut self.special_fields
     }
 
-    fn new() -> CheckInitDataResponse {
-        CheckInitDataResponse::new()
+    fn new() -> BindInitDataResponse {
+        BindInitDataResponse::new()
     }
 
     fn clear(&mut self) {
         self.special_fields.clear();
     }
 
-    fn default_instance() -> &'static CheckInitDataResponse {
-        static instance: CheckInitDataResponse = CheckInitDataResponse {
+    fn default_instance() -> &'static BindInitDataResponse {
+        static instance: BindInitDataResponse = BindInitDataResponse {
             special_fields: ::protobuf::SpecialFields::new(),
         };
         &instance
     }
 }
 
-impl ::protobuf::MessageFull for CheckInitDataResponse {
+impl ::protobuf::MessageFull for BindInitDataResponse {
     fn descriptor() -> ::protobuf::reflect::MessageDescriptor {
         static descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::rt::Lazy::new();
-        descriptor.get(|| file_descriptor().message_by_package_relative_name("CheckInitDataResponse").unwrap()).clone()
+        descriptor.get(|| file_descriptor().message_by_package_relative_name("BindInitDataResponse").unwrap()).clone()
     }
 }
 
-impl ::std::fmt::Display for CheckInitDataResponse {
+impl ::std::fmt::Display for BindInitDataResponse {
     fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         ::protobuf::text_format::fmt(self, f)
     }
 }
 
-impl ::protobuf::reflect::ProtobufValue for CheckInitDataResponse {
+impl ::protobuf::reflect::ProtobufValue for BindInitDataResponse {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
@@ -1618,23 +1618,23 @@ static file_descriptor_proto_data: &'static [u8] = b"\
     \x07Content\x12)\n\rRegisterIndex\x18\x04\x20\x01(\x04H\0R\rRegisterInde\
     x\x88\x01\x01B\x10\n\x0e_RegisterIndex\"\"\n\x20ExtendRuntimeMeasurement\
     Response\"K\n\x11InitDataPlaintext\x12\x18\n\x07Content\x18\x01\x20\x01(\
-    \x0cR\x07Content\x12\x1c\n\tAlgorithm\x18\x02\x20\x01(\tR\tAlgorithm\".\
-    \n\x14CheckInitDataRequest\x12\x16\n\x06Digest\x18\x01\x20\x01(\x0cR\x06\
-    Digest\"\x17\n\x15CheckInitDataResponse\"4\n\x1aUpdateConfigurationReque\
-    st\x12\x16\n\x06config\x18\x01\x20\x01(\tR\x06config\"\x1d\n\x1bUpdateCo\
-    nfigurationResponse\"\x13\n\x11GetTeeTypeRequest\"&\n\x12GetTeeTypeRespo\
-    nse\x12\x10\n\x03tee\x18\x01\x20\x01(\tR\x03tee2\x87\x05\n\x17Attestatio\
-    nAgentService\x12\\\n\x0bGetEvidence\x12%.attestation_agent.GetEvidenceR\
-    equest\x1a&.attestation_agent.GetEvidenceResponse\x12S\n\x08GetToken\x12\
-    \".attestation_agent.GetTokenRequest\x1a#.attestation_agent.GetTokenResp\
-    onse\x12\x83\x01\n\x18ExtendRuntimeMeasurement\x122.attestation_agent.Ex\
-    tendRuntimeMeasurementRequest\x1a3.attestation_agent.ExtendRuntimeMeasur\
-    ementResponse\x12b\n\rCheckInitData\x12'.attestation_agent.CheckInitData\
-    Request\x1a(.attestation_agent.CheckInitDataResponse\x12t\n\x13UpdateCon\
-    figuration\x12-.attestation_agent.UpdateConfigurationRequest\x1a..attest\
-    ation_agent.UpdateConfigurationResponse\x12Y\n\nGetTeeType\x12$.attestat\
-    ion_agent.GetTeeTypeRequest\x1a%.attestation_agent.GetTeeTypeResponseb\
-    \x06proto3\
+    \x0cR\x07Content\x12\x1c\n\tAlgorithm\x18\x02\x20\x01(\tR\tAlgorithm\"-\
+    \n\x13BindInitDataRequest\x12\x16\n\x06Digest\x18\x01\x20\x01(\x0cR\x06D\
+    igest\"\x16\n\x14BindInitDataResponse\"4\n\x1aUpdateConfigurationRequest\
+    \x12\x16\n\x06config\x18\x01\x20\x01(\tR\x06config\"\x1d\n\x1bUpdateConf\
+    igurationResponse\"\x13\n\x11GetTeeTypeRequest\"&\n\x12GetTeeTypeRespons\
+    e\x12\x10\n\x03tee\x18\x01\x20\x01(\tR\x03tee2\x84\x05\n\x17AttestationA\
+    gentService\x12\\\n\x0bGetEvidence\x12%.attestation_agent.GetEvidenceReq\
+    uest\x1a&.attestation_agent.GetEvidenceResponse\x12S\n\x08GetToken\x12\"\
+    .attestation_agent.GetTokenRequest\x1a#.attestation_agent.GetTokenRespon\
+    se\x12\x83\x01\n\x18ExtendRuntimeMeasurement\x122.attestation_agent.Exte\
+    ndRuntimeMeasurementRequest\x1a3.attestation_agent.ExtendRuntimeMeasurem\
+    entResponse\x12_\n\x0cBindInitData\x12&.attestation_agent.BindInitDataRe\
+    quest\x1a'.attestation_agent.BindInitDataResponse\x12t\n\x13UpdateConfig\
+    uration\x12-.attestation_agent.UpdateConfigurationRequest\x1a..attestati\
+    on_agent.UpdateConfigurationResponse\x12Y\n\nGetTeeType\x12$.attestation\
+    _agent.GetTeeTypeRequest\x1a%.attestation_agent.GetTeeTypeResponseb\x06p\
+    roto3\
 ";
 
 /// `FileDescriptorProto` object which was a source for this generated file
@@ -1660,8 +1660,8 @@ pub fn file_descriptor() -> &'static ::protobuf::reflect::FileDescriptor {
             messages.push(ExtendRuntimeMeasurementRequest::generated_message_descriptor_data());
             messages.push(ExtendRuntimeMeasurementResponse::generated_message_descriptor_data());
             messages.push(InitDataPlaintext::generated_message_descriptor_data());
-            messages.push(CheckInitDataRequest::generated_message_descriptor_data());
-            messages.push(CheckInitDataResponse::generated_message_descriptor_data());
+            messages.push(BindInitDataRequest::generated_message_descriptor_data());
+            messages.push(BindInitDataResponse::generated_message_descriptor_data());
             messages.push(UpdateConfigurationRequest::generated_message_descriptor_data());
             messages.push(UpdateConfigurationResponse::generated_message_descriptor_data());
             messages.push(GetTeeTypeRequest::generated_message_descriptor_data());
diff --git a/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent_ttrpc.rs b/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent_ttrpc.rs
index 50e1b0929..f07547ae4 100644
--- a/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent_ttrpc.rs
+++ b/attestation-agent/attestation-agent/src/bin/ttrpc-aa/ttrpc_protocol/attestation_agent_ttrpc.rs
@@ -46,9 +46,9 @@ impl AttestationAgentServiceClient {
         ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "ExtendRuntimeMeasurement", cres);
     }
 
-    pub async fn check_init_data(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::CheckInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::CheckInitDataResponse> {
-        let mut cres = super::attestation_agent::CheckInitDataResponse::new();
-        ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "CheckInitData", cres);
+    pub async fn bind_init_data(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::BindInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::BindInitDataResponse> {
+        let mut cres = super::attestation_agent::BindInitDataResponse::new();
+        ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "BindInitData", cres);
     }
 
     pub async fn update_configuration(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::UpdateConfigurationRequest) -> ::ttrpc::Result<super::attestation_agent::UpdateConfigurationResponse> {
@@ -95,14 +95,14 @@ impl ::ttrpc::r#async::MethodHandler for ExtendRuntimeMeasurementMethod {
     }
 }
 
-struct CheckInitDataMethod {
+struct BindInitDataMethod {
     service: Arc<dyn AttestationAgentService + Send + Sync>,
 }
 
 #[async_trait]
-impl ::ttrpc::r#async::MethodHandler for CheckInitDataMethod {
+impl ::ttrpc::r#async::MethodHandler for BindInitDataMethod {
     async fn handler(&self, ctx: ::ttrpc::r#async::TtrpcContext, req: ::ttrpc::Request) -> ::ttrpc::Result<::ttrpc::Response> {
-        ::ttrpc::async_request_handler!(self, ctx, req, attestation_agent, CheckInitDataRequest, check_init_data);
+        ::ttrpc::async_request_handler!(self, ctx, req, attestation_agent, BindInitDataRequest, bind_init_data);
     }
 }
 
@@ -139,8 +139,8 @@ pub trait AttestationAgentService: Sync {
     async fn extend_runtime_measurement(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::ExtendRuntimeMeasurementRequest) -> ::ttrpc::Result<super::attestation_agent::ExtendRuntimeMeasurementResponse> {
         Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/ExtendRuntimeMeasurement is not supported".to_string())))
     }
-    async fn check_init_data(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::CheckInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::CheckInitDataResponse> {
-        Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/CheckInitData is not supported".to_string())))
+    async fn bind_init_data(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::BindInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::BindInitDataResponse> {
+        Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/BindInitData is not supported".to_string())))
     }
     async fn update_configuration(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::UpdateConfigurationRequest) -> ::ttrpc::Result<super::attestation_agent::UpdateConfigurationResponse> {
         Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/UpdateConfiguration is not supported".to_string())))
@@ -164,8 +164,8 @@ pub fn create_attestation_agent_service(service: Arc<dyn AttestationAgentService
     methods.insert("ExtendRuntimeMeasurement".to_string(),
                     Box::new(ExtendRuntimeMeasurementMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
 
-    methods.insert("CheckInitData".to_string(),
-                    Box::new(CheckInitDataMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
+    methods.insert("BindInitData".to_string(),
+                    Box::new(BindInitDataMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
 
     methods.insert("UpdateConfiguration".to_string(),
                     Box::new(UpdateConfigurationMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
diff --git a/attestation-agent/attestation-agent/src/lib.rs b/attestation-agent/attestation-agent/src/lib.rs
index fea8136a9..c41b7ca69 100644
--- a/attestation-agent/attestation-agent/src/lib.rs
+++ b/attestation-agent/attestation-agent/src/lib.rs
@@ -10,7 +10,7 @@ use kbs_types::Tee;
 use std::{io::Write, str::FromStr};
 use tokio::sync::{Mutex, RwLock};
 
-pub use attester::InitdataResult;
+pub use attester::InitDataResult;
 
 pub mod config;
 mod eventlog;
@@ -32,8 +32,9 @@ use crate::config::Config;
 /// current hardware runtime measurement register (if any) or PCR for (v)TPM (under
 /// development) platforms
 /// with a runtime event.
-/// - `check_init_data`: check if the given data slice matches the current confidential
-/// computing environment's host data field, e.g. MRCONFIGID for TDX, HOSTDATA for SNP.
+/// - `bind_init_data`: bind the given data slice to the current confidential
+/// computing environment. This can be a verify operation or an extension of the TEE
+/// evidence
 ///
 /// # Example
 ///
@@ -69,8 +70,8 @@ pub trait AttestationAPIs {
         register_index: Option<u64>,
     ) -> Result<()>;
 
-    /// Check the initdata binding
-    async fn check_init_data(&self, init_data: &[u8]) -> Result<InitdataResult>;
+    /// Bind initdata
+    async fn bind_init_data(&self, init_data: &[u8]) -> Result<InitDataResult>;
 
     fn get_tee_type(&self) -> Tee;
 }
@@ -233,10 +234,10 @@ impl AttestationAPIs for AttestationAgent {
         Ok(())
     }
 
-    /// Check the initdata binding. If current platform does not support initdata
-    /// injection, return `InitdataResult::Unsupported`.
-    async fn check_init_data(&self, init_data: &[u8]) -> Result<InitdataResult> {
-        self.attester.check_init_data(init_data).await
+    /// Perform the initdata binding. If current platform does not support initdata
+    /// binding, return `InitdataResult::Unsupported`.
+    async fn bind_init_data(&self, init_data: &[u8]) -> Result<InitDataResult> {
+        self.attester.bind_init_data(init_data).await
     }
 
     /// Get the tee type of current platform. If no platform is detected,
diff --git a/attestation-agent/attester/Cargo.toml b/attestation-agent/attester/Cargo.toml
index a3603326b..c36b3b3b5 100644
--- a/attestation-agent/attester/Cargo.toml
+++ b/attestation-agent/attester/Cargo.toml
@@ -64,7 +64,7 @@ tsm-report = ["tempfile"]
 tdx-attester = ["scroll", "tsm-report", "tdx-attest-rs"]
 sgx-attester = ["occlum_dcap"]
 az-snp-vtpm-attester = ["az-snp-vtpm"]
-az-tdx-vtpm-attester = ["az-tdx-vtpm"]
+az-tdx-vtpm-attester = ["az-snp-vtpm-attester", "az-tdx-vtpm"]
 snp-attester = ["sev"]
 csv-attester = ["csv-rs", "codicon", "hyper", "hyper-tls", "tokio"]
 cca-attester = ["tsm-report"]
diff --git a/attestation-agent/attester/src/az_snp_vtpm/mod.rs b/attestation-agent/attester/src/az_snp_vtpm/mod.rs
index 709d3c7d4..c37d7f19c 100644
--- a/attestation-agent/attester/src/az_snp_vtpm/mod.rs
+++ b/attestation-agent/attester/src/az_snp_vtpm/mod.rs
@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-use super::Attester;
+use super::{Attester, InitDataResult};
 use anyhow::{bail, Context, Result};
 use az_snp_vtpm::{imds, is_snp_cvm, vtpm};
 use log::{debug, info};
@@ -46,19 +46,31 @@ impl Attester for AzSnpVtpmAttester {
         Ok(serde_json::to_string(&evidence)?)
     }
 
+    async fn bind_init_data(&self, init_data_digest: &[u8]) -> anyhow::Result<InitDataResult> {
+        utils::extend_pcr(init_data_digest, utils::INIT_DATA_PCR)?;
+        Ok(InitDataResult::Ok)
+    }
+
     async fn extend_runtime_measurement(
         &self,
         event_digest: Vec<u8>,
         register_index: u64,
     ) -> Result<()> {
-        let sha256_digest: [u8; 32] = event_digest
-            .as_slice()
-            .try_into()
-            .context("expected sha256 digest")?;
-        if register_index > 23 {
-            bail!("Invalid PCR index: {}", register_index);
+        utils::extend_pcr(&event_digest, register_index as u8)?;
+        Ok(())
+    }
+}
+
+pub(crate) mod utils {
+    use super::*;
+
+    pub const INIT_DATA_PCR: u8 = 8;
+
+    pub fn extend_pcr(digest: &[u8], pcr: u8) -> Result<()> {
+        let sha256_digest: [u8; 32] = digest.try_into().context("expected sha256 digest")?;
+        if pcr > 23 {
+            bail!("Invalid PCR index: {pcr}");
         }
-        let pcr: u8 = register_index as u8;
         info!("Extending PCR {} with {}", pcr, hex::encode(sha256_digest));
         vtpm::extend_pcr(pcr, &sha256_digest)?;
 
diff --git a/attestation-agent/attester/src/az_tdx_vtpm/mod.rs b/attestation-agent/attester/src/az_tdx_vtpm/mod.rs
index 5c281354f..173958a6d 100644
--- a/attestation-agent/attester/src/az_tdx_vtpm/mod.rs
+++ b/attestation-agent/attester/src/az_tdx_vtpm/mod.rs
@@ -3,11 +3,12 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-use super::Attester;
+use super::{Attester, InitDataResult};
+use crate::az_snp_vtpm::utils;
 use anyhow::*;
 use az_tdx_vtpm::vtpm::Quote as TpmQuote;
 use az_tdx_vtpm::{hcl, imds, is_tdx_cvm, vtpm};
-use log::{debug, info};
+use log::debug;
 use serde::{Deserialize, Serialize};
 use std::result::Result::Ok;
 
@@ -49,22 +50,17 @@ impl Attester for AzTdxVtpmAttester {
         Ok(serde_json::to_string(&evidence)?)
     }
 
+    async fn bind_init_data(&self, init_data_digest: &[u8]) -> anyhow::Result<InitDataResult> {
+        utils::extend_pcr(init_data_digest, utils::INIT_DATA_PCR)?;
+        Ok(InitDataResult::Ok)
+    }
+
     async fn extend_runtime_measurement(
         &self,
         event_digest: Vec<u8>,
         register_index: u64,
     ) -> Result<()> {
-        let sha256_digest: [u8; 32] = event_digest
-            .as_slice()
-            .try_into()
-            .context("expected sha256 digest")?;
-        if register_index > 23 {
-            bail!("Invalid PCR index: {}", register_index);
-        }
-        let pcr: u8 = register_index as u8;
-        info!("Extending PCR {} with {}", pcr, hex::encode(sha256_digest));
-        vtpm::extend_pcr(pcr, &sha256_digest)?;
-
+        utils::extend_pcr(&event_digest, register_index as u8)?;
         Ok(())
     }
 }
diff --git a/attestation-agent/attester/src/lib.rs b/attestation-agent/attester/src/lib.rs
index 0c44e8bd1..090208998 100644
--- a/attestation-agent/attester/src/lib.rs
+++ b/attestation-agent/attester/src/lib.rs
@@ -67,7 +67,7 @@ impl TryFrom<Tee> for BoxedAttester {
     }
 }
 
-pub enum InitdataResult {
+pub enum InitDataResult {
     Ok,
     Unsupported,
 }
@@ -89,8 +89,8 @@ pub trait Attester {
         bail!("Unimplemented")
     }
 
-    async fn check_init_data(&self, _init_data: &[u8]) -> Result<InitdataResult> {
-        Ok(InitdataResult::Unsupported)
+    async fn bind_init_data(&self, _init_data_digest: &[u8]) -> Result<InitDataResult> {
+        Ok(InitDataResult::Unsupported)
     }
 }
 
diff --git a/attestation-agent/attester/src/snp/mod.rs b/attestation-agent/attester/src/snp/mod.rs
index 15f306433..d931d9d4b 100644
--- a/attestation-agent/attester/src/snp/mod.rs
+++ b/attestation-agent/attester/src/snp/mod.rs
@@ -4,7 +4,7 @@
 //
 
 use crate::utils::pad;
-use crate::InitdataResult;
+use crate::InitDataResult;
 
 use super::Attester;
 use anyhow::*;
@@ -53,13 +53,13 @@ impl Attester for SnpAttester {
         serde_json::to_string(&evidence).context("Serialize SNP evidence failed")
     }
 
-    async fn check_init_data(&self, init_data: &[u8]) -> Result<InitdataResult> {
+    async fn bind_init_data(&self, init_data_digest: &[u8]) -> Result<InitDataResult> {
         let hostdata = hostdata::get_snp_host_data().context("Get HOSTDATA failed")?;
-        let init_data: [u8; 32] = pad(init_data);
+        let init_data: [u8; 32] = pad(init_data_digest);
         if init_data != hostdata {
             bail!("HOSTDATA does not match.");
         }
 
-        Ok(InitdataResult::Ok)
+        Ok(InitDataResult::Ok)
     }
 }
diff --git a/attestation-agent/attester/src/tdx/mod.rs b/attestation-agent/attester/src/tdx/mod.rs
index 4269df765..7f99add51 100644
--- a/attestation-agent/attester/src/tdx/mod.rs
+++ b/attestation-agent/attester/src/tdx/mod.rs
@@ -8,7 +8,7 @@ use self::rtmr::TdxRtmrEvent;
 use super::tsm_report::*;
 use super::Attester;
 use crate::utils::pad;
-use crate::InitdataResult;
+use crate::InitDataResult;
 use anyhow::*;
 use base64::Engine;
 use scroll::Pread;
@@ -157,7 +157,7 @@ impl Attester for TdxAttester {
         Ok(())
     }
 
-    async fn check_init_data(&self, init_data: &[u8]) -> Result<InitdataResult> {
+    async fn bind_init_data(&self, init_data_digest: &[u8]) -> Result<InitDataResult> {
         let mut report = tdx_report_t { d: [0; 1024] };
         match tdx_attest_rs::tdx_att_get_report(None, &mut report) {
             tdx_attest_rs::tdx_attest_error_t::TDX_ATTEST_SUCCESS => {
@@ -176,12 +176,12 @@ impl Attester for TdxAttester {
             .pread::<report::TdReport>(0)
             .context("Parse TD report failed")?;
 
-        let init_data: [u8; 48] = pad(init_data);
+        let init_data: [u8; 48] = pad(init_data_digest);
         if init_data != td_report.tdinfo.mrconfigid {
             bail!("Init data does not match!");
         }
 
-        Ok(InitdataResult::Ok)
+        Ok(InitDataResult::Ok)
     }
 }
 
diff --git a/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent.rs b/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent.rs
index 4b6cfcac1..5ce4693dc 100644
--- a/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent.rs
+++ b/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent.rs
@@ -931,25 +931,25 @@ impl ::protobuf::reflect::ProtobufValue for InitDataPlaintext {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
-// @@protoc_insertion_point(message:attestation_agent.CheckInitDataRequest)
+// @@protoc_insertion_point(message:attestation_agent.BindInitDataRequest)
 #[derive(PartialEq,Clone,Default,Debug)]
-pub struct CheckInitDataRequest {
+pub struct BindInitDataRequest {
     // message fields
-    // @@protoc_insertion_point(field:attestation_agent.CheckInitDataRequest.Digest)
+    // @@protoc_insertion_point(field:attestation_agent.BindInitDataRequest.Digest)
     pub Digest: ::std::vec::Vec<u8>,
     // special fields
-    // @@protoc_insertion_point(special_field:attestation_agent.CheckInitDataRequest.special_fields)
+    // @@protoc_insertion_point(special_field:attestation_agent.BindInitDataRequest.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
 }
 
-impl<'a> ::std::default::Default for &'a CheckInitDataRequest {
-    fn default() -> &'a CheckInitDataRequest {
-        <CheckInitDataRequest as ::protobuf::Message>::default_instance()
+impl<'a> ::std::default::Default for &'a BindInitDataRequest {
+    fn default() -> &'a BindInitDataRequest {
+        <BindInitDataRequest as ::protobuf::Message>::default_instance()
     }
 }
 
-impl CheckInitDataRequest {
-    pub fn new() -> CheckInitDataRequest {
+impl BindInitDataRequest {
+    pub fn new() -> BindInitDataRequest {
         ::std::default::Default::default()
     }
 
@@ -958,19 +958,19 @@ impl CheckInitDataRequest {
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
         fields.push(::protobuf::reflect::rt::v2::make_simpler_field_accessor::<_, _>(
             "Digest",
-            |m: &CheckInitDataRequest| { &m.Digest },
-            |m: &mut CheckInitDataRequest| { &mut m.Digest },
+            |m: &BindInitDataRequest| { &m.Digest },
+            |m: &mut BindInitDataRequest| { &mut m.Digest },
         ));
-        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<CheckInitDataRequest>(
-            "CheckInitDataRequest",
+        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<BindInitDataRequest>(
+            "BindInitDataRequest",
             fields,
             oneofs,
         )
     }
 }
 
-impl ::protobuf::Message for CheckInitDataRequest {
-    const NAME: &'static str = "CheckInitDataRequest";
+impl ::protobuf::Message for BindInitDataRequest {
+    const NAME: &'static str = "BindInitDataRequest";
 
     fn is_initialized(&self) -> bool {
         true
@@ -1018,8 +1018,8 @@ impl ::protobuf::Message for CheckInitDataRequest {
         &mut self.special_fields
     }
 
-    fn new() -> CheckInitDataRequest {
-        CheckInitDataRequest::new()
+    fn new() -> BindInitDataRequest {
+        BindInitDataRequest::new()
     }
 
     fn clear(&mut self) {
@@ -1027,8 +1027,8 @@ impl ::protobuf::Message for CheckInitDataRequest {
         self.special_fields.clear();
     }
 
-    fn default_instance() -> &'static CheckInitDataRequest {
-        static instance: CheckInitDataRequest = CheckInitDataRequest {
+    fn default_instance() -> &'static BindInitDataRequest {
+        static instance: BindInitDataRequest = BindInitDataRequest {
             Digest: ::std::vec::Vec::new(),
             special_fields: ::protobuf::SpecialFields::new(),
         };
@@ -1036,55 +1036,55 @@ impl ::protobuf::Message for CheckInitDataRequest {
     }
 }
 
-impl ::protobuf::MessageFull for CheckInitDataRequest {
+impl ::protobuf::MessageFull for BindInitDataRequest {
     fn descriptor() -> ::protobuf::reflect::MessageDescriptor {
         static descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::rt::Lazy::new();
-        descriptor.get(|| file_descriptor().message_by_package_relative_name("CheckInitDataRequest").unwrap()).clone()
+        descriptor.get(|| file_descriptor().message_by_package_relative_name("BindInitDataRequest").unwrap()).clone()
     }
 }
 
-impl ::std::fmt::Display for CheckInitDataRequest {
+impl ::std::fmt::Display for BindInitDataRequest {
     fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         ::protobuf::text_format::fmt(self, f)
     }
 }
 
-impl ::protobuf::reflect::ProtobufValue for CheckInitDataRequest {
+impl ::protobuf::reflect::ProtobufValue for BindInitDataRequest {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
-// @@protoc_insertion_point(message:attestation_agent.CheckInitDataResponse)
+// @@protoc_insertion_point(message:attestation_agent.BindInitDataResponse)
 #[derive(PartialEq,Clone,Default,Debug)]
-pub struct CheckInitDataResponse {
+pub struct BindInitDataResponse {
     // special fields
-    // @@protoc_insertion_point(special_field:attestation_agent.CheckInitDataResponse.special_fields)
+    // @@protoc_insertion_point(special_field:attestation_agent.BindInitDataResponse.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
 }
 
-impl<'a> ::std::default::Default for &'a CheckInitDataResponse {
-    fn default() -> &'a CheckInitDataResponse {
-        <CheckInitDataResponse as ::protobuf::Message>::default_instance()
+impl<'a> ::std::default::Default for &'a BindInitDataResponse {
+    fn default() -> &'a BindInitDataResponse {
+        <BindInitDataResponse as ::protobuf::Message>::default_instance()
     }
 }
 
-impl CheckInitDataResponse {
-    pub fn new() -> CheckInitDataResponse {
+impl BindInitDataResponse {
+    pub fn new() -> BindInitDataResponse {
         ::std::default::Default::default()
     }
 
     fn generated_message_descriptor_data() -> ::protobuf::reflect::GeneratedMessageDescriptorData {
         let mut fields = ::std::vec::Vec::with_capacity(0);
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
-        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<CheckInitDataResponse>(
-            "CheckInitDataResponse",
+        ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<BindInitDataResponse>(
+            "BindInitDataResponse",
             fields,
             oneofs,
         )
     }
 }
 
-impl ::protobuf::Message for CheckInitDataResponse {
-    const NAME: &'static str = "CheckInitDataResponse";
+impl ::protobuf::Message for BindInitDataResponse {
+    const NAME: &'static str = "BindInitDataResponse";
 
     fn is_initialized(&self) -> bool {
         true
@@ -1123,36 +1123,36 @@ impl ::protobuf::Message for CheckInitDataResponse {
         &mut self.special_fields
     }
 
-    fn new() -> CheckInitDataResponse {
-        CheckInitDataResponse::new()
+    fn new() -> BindInitDataResponse {
+        BindInitDataResponse::new()
     }
 
     fn clear(&mut self) {
         self.special_fields.clear();
     }
 
-    fn default_instance() -> &'static CheckInitDataResponse {
-        static instance: CheckInitDataResponse = CheckInitDataResponse {
+    fn default_instance() -> &'static BindInitDataResponse {
+        static instance: BindInitDataResponse = BindInitDataResponse {
             special_fields: ::protobuf::SpecialFields::new(),
         };
         &instance
     }
 }
 
-impl ::protobuf::MessageFull for CheckInitDataResponse {
+impl ::protobuf::MessageFull for BindInitDataResponse {
     fn descriptor() -> ::protobuf::reflect::MessageDescriptor {
         static descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::rt::Lazy::new();
-        descriptor.get(|| file_descriptor().message_by_package_relative_name("CheckInitDataResponse").unwrap()).clone()
+        descriptor.get(|| file_descriptor().message_by_package_relative_name("BindInitDataResponse").unwrap()).clone()
     }
 }
 
-impl ::std::fmt::Display for CheckInitDataResponse {
+impl ::std::fmt::Display for BindInitDataResponse {
     fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         ::protobuf::text_format::fmt(self, f)
     }
 }
 
-impl ::protobuf::reflect::ProtobufValue for CheckInitDataResponse {
+impl ::protobuf::reflect::ProtobufValue for BindInitDataResponse {
     type RuntimeType = ::protobuf::reflect::rt::RuntimeTypeMessage<Self>;
 }
 
@@ -1618,23 +1618,23 @@ static file_descriptor_proto_data: &'static [u8] = b"\
     \x07Content\x12)\n\rRegisterIndex\x18\x04\x20\x01(\x04H\0R\rRegisterInde\
     x\x88\x01\x01B\x10\n\x0e_RegisterIndex\"\"\n\x20ExtendRuntimeMeasurement\
     Response\"K\n\x11InitDataPlaintext\x12\x18\n\x07Content\x18\x01\x20\x01(\
-    \x0cR\x07Content\x12\x1c\n\tAlgorithm\x18\x02\x20\x01(\tR\tAlgorithm\".\
-    \n\x14CheckInitDataRequest\x12\x16\n\x06Digest\x18\x01\x20\x01(\x0cR\x06\
-    Digest\"\x17\n\x15CheckInitDataResponse\"4\n\x1aUpdateConfigurationReque\
-    st\x12\x16\n\x06config\x18\x01\x20\x01(\tR\x06config\"\x1d\n\x1bUpdateCo\
-    nfigurationResponse\"\x13\n\x11GetTeeTypeRequest\"&\n\x12GetTeeTypeRespo\
-    nse\x12\x10\n\x03tee\x18\x01\x20\x01(\tR\x03tee2\x87\x05\n\x17Attestatio\
-    nAgentService\x12\\\n\x0bGetEvidence\x12%.attestation_agent.GetEvidenceR\
-    equest\x1a&.attestation_agent.GetEvidenceResponse\x12S\n\x08GetToken\x12\
-    \".attestation_agent.GetTokenRequest\x1a#.attestation_agent.GetTokenResp\
-    onse\x12\x83\x01\n\x18ExtendRuntimeMeasurement\x122.attestation_agent.Ex\
-    tendRuntimeMeasurementRequest\x1a3.attestation_agent.ExtendRuntimeMeasur\
-    ementResponse\x12b\n\rCheckInitData\x12'.attestation_agent.CheckInitData\
-    Request\x1a(.attestation_agent.CheckInitDataResponse\x12t\n\x13UpdateCon\
-    figuration\x12-.attestation_agent.UpdateConfigurationRequest\x1a..attest\
-    ation_agent.UpdateConfigurationResponse\x12Y\n\nGetTeeType\x12$.attestat\
-    ion_agent.GetTeeTypeRequest\x1a%.attestation_agent.GetTeeTypeResponseb\
-    \x06proto3\
+    \x0cR\x07Content\x12\x1c\n\tAlgorithm\x18\x02\x20\x01(\tR\tAlgorithm\"-\
+    \n\x13BindInitDataRequest\x12\x16\n\x06Digest\x18\x01\x20\x01(\x0cR\x06D\
+    igest\"\x16\n\x14BindInitDataResponse\"4\n\x1aUpdateConfigurationRequest\
+    \x12\x16\n\x06config\x18\x01\x20\x01(\tR\x06config\"\x1d\n\x1bUpdateConf\
+    igurationResponse\"\x13\n\x11GetTeeTypeRequest\"&\n\x12GetTeeTypeRespons\
+    e\x12\x10\n\x03tee\x18\x01\x20\x01(\tR\x03tee2\x84\x05\n\x17AttestationA\
+    gentService\x12\\\n\x0bGetEvidence\x12%.attestation_agent.GetEvidenceReq\
+    uest\x1a&.attestation_agent.GetEvidenceResponse\x12S\n\x08GetToken\x12\"\
+    .attestation_agent.GetTokenRequest\x1a#.attestation_agent.GetTokenRespon\
+    se\x12\x83\x01\n\x18ExtendRuntimeMeasurement\x122.attestation_agent.Exte\
+    ndRuntimeMeasurementRequest\x1a3.attestation_agent.ExtendRuntimeMeasurem\
+    entResponse\x12_\n\x0cBindInitData\x12&.attestation_agent.BindInitDataRe\
+    quest\x1a'.attestation_agent.BindInitDataResponse\x12t\n\x13UpdateConfig\
+    uration\x12-.attestation_agent.UpdateConfigurationRequest\x1a..attestati\
+    on_agent.UpdateConfigurationResponse\x12Y\n\nGetTeeType\x12$.attestation\
+    _agent.GetTeeTypeRequest\x1a%.attestation_agent.GetTeeTypeResponseb\x06p\
+    roto3\
 ";
 
 /// `FileDescriptorProto` object which was a source for this generated file
@@ -1660,8 +1660,8 @@ pub fn file_descriptor() -> &'static ::protobuf::reflect::FileDescriptor {
             messages.push(ExtendRuntimeMeasurementRequest::generated_message_descriptor_data());
             messages.push(ExtendRuntimeMeasurementResponse::generated_message_descriptor_data());
             messages.push(InitDataPlaintext::generated_message_descriptor_data());
-            messages.push(CheckInitDataRequest::generated_message_descriptor_data());
-            messages.push(CheckInitDataResponse::generated_message_descriptor_data());
+            messages.push(BindInitDataRequest::generated_message_descriptor_data());
+            messages.push(BindInitDataResponse::generated_message_descriptor_data());
             messages.push(UpdateConfigurationRequest::generated_message_descriptor_data());
             messages.push(UpdateConfigurationResponse::generated_message_descriptor_data());
             messages.push(GetTeeTypeRequest::generated_message_descriptor_data());
diff --git a/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent_ttrpc.rs b/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent_ttrpc.rs
index 85fe45a8f..735978670 100644
--- a/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent_ttrpc.rs
+++ b/attestation-agent/kbs_protocol/src/token_provider/aa/attestation_agent_ttrpc.rs
@@ -46,9 +46,9 @@ impl AttestationAgentServiceClient {
         ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "ExtendRuntimeMeasurement", cres);
     }
 
-    pub async fn check_init_data(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::CheckInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::CheckInitDataResponse> {
-        let mut cres = super::attestation_agent::CheckInitDataResponse::new();
-        ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "CheckInitData", cres);
+    pub async fn bind_init_data(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::BindInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::BindInitDataResponse> {
+        let mut cres = super::attestation_agent::BindInitDataResponse::new();
+        ::ttrpc::async_client_request!(self, ctx, req, "attestation_agent.AttestationAgentService", "BindInitData", cres);
     }
 
     pub async fn update_configuration(&self, ctx: ttrpc::context::Context, req: &super::attestation_agent::UpdateConfigurationRequest) -> ::ttrpc::Result<super::attestation_agent::UpdateConfigurationResponse> {
@@ -95,14 +95,14 @@ impl ::ttrpc::r#async::MethodHandler for ExtendRuntimeMeasurementMethod {
     }
 }
 
-struct CheckInitDataMethod {
+struct BindInitDataMethod {
     service: Arc<dyn AttestationAgentService + Send + Sync>,
 }
 
 #[async_trait]
-impl ::ttrpc::r#async::MethodHandler for CheckInitDataMethod {
+impl ::ttrpc::r#async::MethodHandler for BindInitDataMethod {
     async fn handler(&self, ctx: ::ttrpc::r#async::TtrpcContext, req: ::ttrpc::Request) -> ::ttrpc::Result<::ttrpc::Response> {
-        ::ttrpc::async_request_handler!(self, ctx, req, attestation_agent, CheckInitDataRequest, check_init_data);
+        ::ttrpc::async_request_handler!(self, ctx, req, attestation_agent, BindInitDataRequest, bind_init_data);
     }
 }
 
@@ -139,8 +139,8 @@ pub trait AttestationAgentService: Sync {
     async fn extend_runtime_measurement(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::ExtendRuntimeMeasurementRequest) -> ::ttrpc::Result<super::attestation_agent::ExtendRuntimeMeasurementResponse> {
         Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/ExtendRuntimeMeasurement is not supported".to_string())))
     }
-    async fn check_init_data(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::CheckInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::CheckInitDataResponse> {
-        Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/CheckInitData is not supported".to_string())))
+    async fn bind_init_data(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::BindInitDataRequest) -> ::ttrpc::Result<super::attestation_agent::BindInitDataResponse> {
+        Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/BindInitData is not supported".to_string())))
     }
     async fn update_configuration(&self, _ctx: &::ttrpc::r#async::TtrpcContext, _: super::attestation_agent::UpdateConfigurationRequest) -> ::ttrpc::Result<super::attestation_agent::UpdateConfigurationResponse> {
         Err(::ttrpc::Error::RpcStatus(::ttrpc::get_status(::ttrpc::Code::NOT_FOUND, "/attestation_agent.AttestationAgentService/UpdateConfiguration is not supported".to_string())))
@@ -164,8 +164,8 @@ pub fn create_attestation_agent_service(service: Arc<dyn AttestationAgentService
     methods.insert("ExtendRuntimeMeasurement".to_string(),
                     Box::new(ExtendRuntimeMeasurementMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
 
-    methods.insert("CheckInitData".to_string(),
-                    Box::new(CheckInitDataMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
+    methods.insert("BindInitData".to_string(),
+                    Box::new(BindInitDataMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
 
     methods.insert("UpdateConfiguration".to_string(),
                     Box::new(UpdateConfigurationMethod{service: service.clone()}) as Box<dyn ::ttrpc::r#async::MethodHandler + Send + Sync>);
diff --git a/attestation-agent/protos/attestation-agent.proto b/attestation-agent/protos/attestation-agent.proto
index 665044cde..634b2681c 100644
--- a/attestation-agent/protos/attestation-agent.proto
+++ b/attestation-agent/protos/attestation-agent.proto
@@ -41,11 +41,11 @@ message InitDataPlaintext {
     string Algorithm = 2; 
 }
 
-message CheckInitDataRequest {
+message BindInitDataRequest {
     bytes Digest = 1;
 }
 
-message CheckInitDataResponse {}
+message BindInitDataResponse {}
 
 message UpdateConfigurationRequest {
     string config = 1;
@@ -63,7 +63,7 @@ service AttestationAgentService {
     rpc GetEvidence(GetEvidenceRequest) returns (GetEvidenceResponse) {};
     rpc GetToken(GetTokenRequest) returns (GetTokenResponse) {};
     rpc ExtendRuntimeMeasurement(ExtendRuntimeMeasurementRequest) returns (ExtendRuntimeMeasurementResponse) {};
-    rpc CheckInitData(CheckInitDataRequest) returns (CheckInitDataResponse) {};
+    rpc BindInitData(BindInitDataRequest) returns (BindInitDataResponse) {};
 
     // This is a workaround API for initdata in CoCo. Once
     // a better design is implemented we can deprecate the API.