diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9337843c..4ab1faca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -180,18 +180,21 @@ jobs:
     needs: [build-and-export-cross-compile-docker]
     steps:
       - uses: actions/checkout@v3
-      - name: Load Docker
-        uses: ./.github/actions/load_docker
-        if: ${{ env.TEST_CROSS_DOCKER_IMAGE == 'parsec-service-test-cross-compile' }}
-        with:
-          image-name: "${{ env.TEST_CROSS_DOCKER_IMAGE }}"
-          image-path: "/tmp"
+      # - name: Load Docker
+      #   uses: ./.github/actions/load_docker
+      #   if: ${{ env.TEST_CROSS_DOCKER_IMAGE == 'parsec-service-test-cross-compile' }}
+      #   with:
+      #     image-name: "${{ env.TEST_CROSS_DOCKER_IMAGE }}"
+      #     image-path: "/tmp"
+      # Use the following step when updating the `parsec-service-test-all` image
+      - name: Build the container
+        run: pushd e2e_tests/docker_image && docker build -t parsec-service-test-cross-compile -f parsec-service-test-cross-compile.Dockerfile . && popd
       - name: Run the cross compiler tests using pre-built docker image
-        if: ${{ env.TEST_CROSS_DOCKER_IMAGE != 'parsec-service-test-cross-compile' }}
-        run: docker run -v $(pwd):/tmp/parsec -w /tmp/parsec ghcr.io/parallaxsecond/parsec-service-test-cross-compile /tmp/parsec/test/cross-compile.sh
-      - name: Run the cross compiler tests using image built on the CI
         if: ${{ env.TEST_CROSS_DOCKER_IMAGE == 'parsec-service-test-cross-compile' }}
-        run: docker run -v $(pwd):/tmp/parsec -w "${{ env.TEST_CROSS_DOCKER_IMAGE }}" /tmp/parsec/test/cross-compile.sh
+        run: docker run -v $(pwd):/tmp/parsec -w /tmp/parsec -t parsec-service-test-cross-compile /tmp/parsec/test/cross-compile.sh
+      - name: Run the cross compiler tests using image built on the CI
+        if: ${{ env.TEST_CROSS_DOCKER_IMAGE != 'parsec-service-test-cross-compile' }}
+        run: docker run -v $(pwd):/tmp/parsec -w /tmp/parsec -t parsec-service-test-cross-compile /tmp/parsec/test/cross-compile.sh
 
   links:
     name: Check links
diff --git a/build.rs b/build.rs
index ad94c795..ceebda77 100644
--- a/build.rs
+++ b/build.rs
@@ -19,6 +19,7 @@ fn generate_ts_bindings(ts_include_dir: String) -> Result<()> {
     println!("cargo:rerun-if-changed={}", header);
 
     let bindings = bindgen::Builder::default()
+        .clang_arg(format!("-I{}", ts_include_dir))
         .clang_arg(format!(
             "-I{}",
             ts_include_dir + "/components/rpc/common/interface"
diff --git a/ci.sh b/ci.sh
index c3a5cc02..1f8f30c8 100755
--- a/ci.sh
+++ b/ci.sh
@@ -120,7 +120,9 @@ run_old_e2e_tests() {
 run_key_mappings_tests() {
     # There is no keys generated for CryptoAuthLib yet.
     # This condition should be removed when the keys are generated for the CAL provider
-    if ! [[ "$PROVIDER_NAME" = "cryptoauthlib" ]]; then
+    # The v1.0.0 version of libts required for testing trusted-services does not generate keys
+    # in the form of 00*.psa_its. Hence we skip this test for the TS provider. 
+    if ! [[ "$PROVIDER_NAME" = "cryptoauthlib" || "$PROVIDER_NAME" = "trusted-service" ]]; then
         echo "Execute key mappings tests"
         RUST_BACKTRACE=1 cargo test $TEST_FEATURES --manifest-path ./e2e_tests/Cargo.toml key_mappings
     fi
diff --git a/e2e_tests/docker_image/parsec-service-test-all.Dockerfile b/e2e_tests/docker_image/parsec-service-test-all.Dockerfile
index f545b0fd..2678443a 100644
--- a/e2e_tests/docker_image/parsec-service-test-all.Dockerfile
+++ b/e2e_tests/docker_image/parsec-service-test-all.Dockerfile
@@ -161,3 +161,18 @@ ENV SPIFFE_ENDPOINT_SOCKET="unix:///tmp/agent.sock"
 
 # Add safe.directory configuration to access repos freely
 RUN git config --global --add safe.directory '*'
+
+# Install latest Trusted Services libraries. The previously installed
+# libraries are old and necessary for ./generate-keys.sh which uses 
+# Parsec 1.0.0 version that is incompatible with newer libts APIs. 
+RUN rm /usr/local/lib/libts.so* /usr/local/lib/libprotobuf-nanopb.a /usr/local/lib/libmbedcrypto.a 
+RUN git clone https://git.trustedfirmware.org/TS/trusted-services.git --branch main \
+	&& cd trusted-services \
+	&& git reset --hard b27d4163e01065d1203bd71ffa6562a651f77a13
+# Install correct python dependencies
+RUN pip3 install -r trusted-services/requirements.txt
+RUN cd trusted-services/deployments/libts/linux-pc/ \
+	&& cmake . \
+	&& make \
+	&& cp libts.so* nanopb_install/lib/libprotobuf-nanopb.a mbedtls_install/lib/libmbedcrypto.a /usr/local/lib/
+RUN rm -rf trusted-services
diff --git a/e2e_tests/docker_image/parsec-service-test-cross-compile.Dockerfile b/e2e_tests/docker_image/parsec-service-test-cross-compile.Dockerfile
index 92e7caf8..f550f0dc 100644
--- a/e2e_tests/docker_image/parsec-service-test-cross-compile.Dockerfile
+++ b/e2e_tests/docker_image/parsec-service-test-cross-compile.Dockerfile
@@ -11,9 +11,9 @@ RUN rm aarch64-gcc.tar.xz
 # Setup git config for patching dependencies
 RUN git config --global user.email "some@email.com"
 RUN git config --global user.name "Parsec Team"
-RUN git clone https://git.trustedfirmware.org/TS/trusted-services.git --branch integration \
+RUN git clone https://git.trustedfirmware.org/TS/trusted-services.git --branch main \
     && cd trusted-services \
-    && git reset --hard 389b50624f25dae860bbbf8b16f75b32f1589c8d
+    && git reset --hard b27d4163e01065d1203bd71ffa6562a651f77a13
 # Install correct python dependencies
 RUN pip3 install -r trusted-services/requirements.txt
 RUN cd trusted-services/deployments/libts/arm-linux/ \
diff --git a/src/providers/trusted_service/context/mod.rs b/src/providers/trusted_service/context/mod.rs
index 05a53e7a..aa5ed498 100644
--- a/src/providers/trusted_service/context/mod.rs
+++ b/src/providers/trusted_service/context/mod.rs
@@ -4,7 +4,7 @@ use error::{Error, WrapperError};
 use log::{error, info, trace};
 use prost::Message;
 use std::convert::{TryFrom, TryInto};
-use std::ffi::{c_void, CString};
+use std::ffi::CString;
 use std::io::{self};
 use std::ptr::null_mut;
 use std::slice;
@@ -61,9 +61,8 @@ mod ts_protobuf;
 /// is required from the caller.
 #[derive(Debug)]
 pub struct Context {
-    rpc_caller: *mut rpc_caller,
+    rpc_caller_session: *mut rpc_caller_session,
     service_context: *mut service_context,
-    rpc_session_handle: *mut c_void,
     call_mutex: Mutex<()>,
 }
 
@@ -75,33 +74,20 @@ impl Context {
         unsafe { service_locator_init() };
 
         info!("Obtaining a crypto Trusted Service context.");
-        let mut status = 0;
-        let service_name = CString::new("sn:trustedfirmware.org:crypto:0").unwrap();
-        let service_context = unsafe { service_locator_query(service_name.as_ptr(), &mut status) };
+        let service_name = CString::new("sn:trustedfirmware.org:crypto-protobuf:0").unwrap();
+        let service_context = unsafe { service_locator_query(service_name.as_ptr()) };
         if service_context.is_null() {
-            error!("Locating crypto Trusted Service failed, status: {}", status);
+            error!("Locating crypto Trusted Service failed");
             return Err(io::Error::new(
                 io::ErrorKind::Other,
                 "Failed to obtain a Trusted Service context",
             )
             .into());
-        } else if status != 0 {
-            return Err(io::Error::new(
-                io::ErrorKind::Other,
-                format!(
-                    "Failed to connect to Trusted Service; status code: {}",
-                    status
-                ),
-            )
-            .into());
         }
 
         info!("Starting crypto Trusted Service context");
-        let mut rpc_caller = null_mut();
-        let rpc_session_handle = unsafe {
-            service_context_open(service_context, TS_RPC_ENCODING_PROTOBUF, &mut rpc_caller)
-        };
-        if rpc_caller.is_null() || rpc_session_handle.is_null() {
+        let rpc_caller_session = unsafe { service_context_open(service_context) };
+        if rpc_caller_session.is_null() {
             return Err(io::Error::new(
                 io::ErrorKind::Other,
                 "Failed to start Trusted Service context",
@@ -109,9 +95,8 @@ impl Context {
             .into());
         }
         let ctx = Context {
-            rpc_caller,
+            rpc_caller_session,
             service_context,
-            rpc_session_handle,
             call_mutex: Mutex::new(()),
         };
 
@@ -129,8 +114,19 @@ impl Context {
         trace!("Beginning call to Trusted Service");
 
         let mut buf_out = null_mut();
-        let call_handle =
-            unsafe { rpc_caller_begin(self.rpc_caller, &mut buf_out, req.encoded_len()) };
+        // The response buffer length is set to 4096 as a common buffer length
+        // for all operations. In case of the session memory policy being "alloc_for_session"
+        // which is dependant on the platform, this value doesnt impact but for
+        // platforms with memory policy "alloc_for_each_call" the buffer length should be
+        // sufficient enough to hold the entire response.
+        let call_handle = unsafe {
+            rpc_caller_session_begin(
+                self.rpc_caller_session,
+                &mut buf_out,
+                req.encoded_len(),
+                4096,
+            )
+        };
         if call_handle.is_null() {
             error!("Call handle was null");
             return Err(WrapperError::CallHandleNull.into());
@@ -140,7 +136,9 @@ impl Context {
         }
         let mut buf_out = unsafe { slice::from_raw_parts_mut(buf_out, req.encoded_len()) };
         req.encode(&mut buf_out).map_err(|e| {
-            unsafe { rpc_caller_end(self.rpc_caller, call_handle) };
+            unsafe {
+                let _ = rpc_caller_session_end(call_handle);
+            };
             format_error!("Failed to serialize Protobuf request", e);
             WrapperError::FailedPbConversion
         })?;
@@ -151,13 +149,12 @@ impl Context {
         let mut resp_buf = null_mut();
         let mut resp_buf_size = 0;
         let status = unsafe {
-            rpc_caller_invoke(
-                self.rpc_caller,
+            rpc_caller_session_invoke(
                 call_handle,
                 i32::from(req.opcode()).try_into().unwrap(),
-                &mut opstatus,
                 &mut resp_buf,
                 &mut resp_buf_size,
+                &mut opstatus,
             )
         };
         Error::from_status_opstatus(
@@ -165,16 +162,23 @@ impl Context {
             i32::try_from(opstatus).map_err(|_| Error::Wrapper(WrapperError::InvalidOpStatus))?,
         )
         .map_err(|e| {
-            unsafe { rpc_caller_end(self.rpc_caller, call_handle) };
+            unsafe {
+                let _ = rpc_caller_session_end(call_handle);
+            };
             e
         })?;
         let resp_buf = unsafe { slice::from_raw_parts_mut(resp_buf, resp_buf_size) };
         resp.merge(&*resp_buf).map_err(|e| {
-            unsafe { rpc_caller_end(self.rpc_caller, call_handle) };
+            unsafe {
+                let _ = rpc_caller_session_end(call_handle);
+            };
             format_error!("Failed to serialize Protobuf request", e);
             WrapperError::FailedPbConversion
         })?;
-        unsafe { rpc_caller_end(self.rpc_caller, call_handle) };
+        unsafe {
+            let status = rpc_caller_session_end(call_handle);
+            Error::from_status_opstatus(status, 0)?;
+        };
 
         Ok(resp)
     }
@@ -182,7 +186,7 @@ impl Context {
 
 impl Drop for Context {
     fn drop(&mut self) {
-        unsafe { service_context_close(self.service_context, self.rpc_session_handle) };
+        unsafe { service_context_close(self.service_context, self.rpc_caller_session) };
 
         unsafe { service_context_relinquish(self.service_context) };
     }
diff --git a/trusted-services-vendor b/trusted-services-vendor
index 389b5062..b27d4163 160000
--- a/trusted-services-vendor
+++ b/trusted-services-vendor
@@ -1 +1 @@
-Subproject commit 389b50624f25dae860bbbf8b16f75b32f1589c8d
+Subproject commit b27d4163e01065d1203bd71ffa6562a651f77a13