diff --git a/tests/rest_scripts/calculate_crc64nvme.sh b/tests/rest_scripts/calculate_checksum.sh
similarity index 100%
rename from tests/rest_scripts/calculate_crc64nvme.sh
rename to tests/rest_scripts/calculate_checksum.sh
diff --git a/tests/rest_scripts/put_object.sh b/tests/rest_scripts/put_object.sh
index 27e1c95..43b91a2 100755
--- a/tests/rest_scripts/put_object.sh
+++ b/tests/rest_scripts/put_object.sh
@@ -65,13 +65,13 @@ elif [ "$checksum_type" == "crc32" ]; then
   fi
   cr_data+=("x-amz-checksum-crc32:$checksum_hash")
 elif [ "$checksum_type" == "crc64nvme" ]; then
-  if [ -z "$checksum_hash" ] && ! checksum_hash=$(DATA_FILE="$data_file" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc64nvme" ./tests/rest_scripts/calculate_crc64nvme.sh 2>&1); then
+  if [ -z "$checksum_hash" ] && ! checksum_hash=$(DATA_FILE="$data_file" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc64nvme" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
     log_rest 2 "error calculating crc64nvme checksum: $checksum_hash"
     exit 1
   fi
   cr_data+=("x-amz-checksum-crc64nvme:$checksum_hash")
 elif [ "$checksum_type" == "crc32c" ]; then
-  if [ -z "$checksum_hash" ] && ! checksum_hash=$(DATA_FILE="$data_file" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc32c" ./tests/rest_scripts/calculate_crc64nvme.sh 2>&1); then
+  if [ -z "$checksum_hash" ] && ! checksum_hash=$(DATA_FILE="$data_file" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc32c" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
     log_rest 2 "error calculating crc32c checksum: $checksum_hash"
     exit 1
   fi
diff --git a/tests/rest_scripts/put_object_openssl_chunked_example.sh b/tests/rest_scripts/put_object_openssl_chunked_example.sh
index 7356cb4..e3da71c 100755
--- a/tests/rest_scripts/put_object_openssl_chunked_example.sh
+++ b/tests/rest_scripts/put_object_openssl_chunked_example.sh
@@ -102,17 +102,16 @@ x-amz-storage-class:REDUCED_REDUNDANCY
 content-encoding;content-length;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class
 STREAMING-AWS4-HMAC-SHA256-PAYLOAD"
 
-  readonly expected_command="PUT /examplebucket/chunkObject.txt HTTP/1.1
-Host: s3.amazonaws.com
-x-amz-date: 20130524T000000Z
-x-amz-storage-class: REDUCED_REDUNDANCY
-Authorization: AWS4-HMAC-SHA256 Credential=AKIAIOSFODNN7EXAMPLE/20130524/us-east-1/s3/aws4_request,SignedHeaders=content-encoding;content-length;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class,Signature=4f232c4386841ef735655705268965c44a0e4690baa4adea153f7db9fa80a0a9
-x-amz-content-sha256: STREAMING-AWS4-HMAC-SHA256-PAYLOAD
-Content-Encoding: aws-chunked
-x-amz-decoded-content-length: 66560
-Content-Length: 66824
-
-"
+  readonly expected_command="PUT /examplebucket/chunkObject.txt HTTP/1.1\r
+Host: s3.amazonaws.com\r
+x-amz-date: 20130524T000000Z\r
+x-amz-storage-class: REDUCED_REDUNDANCY\r
+Authorization: AWS4-HMAC-SHA256 Credential=AKIAIOSFODNN7EXAMPLE/20130524/us-east-1/s3/aws4_request,SignedHeaders=content-encoding;content-length;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class,Signature=4f232c4386841ef735655705268965c44a0e4690baa4adea153f7db9fa80a0a9\r
+x-amz-content-sha256: STREAMING-AWS4-HMAC-SHA256-PAYLOAD\r
+Content-Encoding: aws-chunked\r
+x-amz-decoded-content-length: 66560\r
+Content-Length: 66824\r
+\r\n"
 }
 
 get_file_size_and_content_length() {
diff --git a/tests/rest_scripts/put_object_openssl_chunked_trailer_example.sh b/tests/rest_scripts/put_object_openssl_chunked_trailer_example.sh
new file mode 100755
index 0000000..444c07d
--- /dev/null
+++ b/tests/rest_scripts/put_object_openssl_chunked_trailer_example.sh
@@ -0,0 +1,460 @@
+#!/usr/bin/env bash
+
+# Copyright 2024 Versity Software
+# This file is 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.
+
+source ./tests/rest_scripts/rest.sh
+source ./tests/util/util_file.sh
+
+# Fields
+
+load_parameters() {
+  test_mode=${TEST_MODE:=true}
+  # shellcheck disable=SC2034
+  command_file="${COMMAND_FILE:=command.txt}"
+
+  readonly signature_no_data="e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+
+  if [ "$test_mode" == "true" ]; then
+    current_date_time="20130524T000000Z"
+    year_month_day="20130524"
+    bucket_name="examplebucket"
+    key="chunkObject.txt"
+    aws_access_key_id="AKIAIOSFODNN7EXAMPLE"
+    # shellcheck disable=SC2034
+    aws_secret_access_key="wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
+    aws_region="us-east-1"
+    host="s3.amazonaws.com"
+    dd if=/dev/zero bs=1 count=66560 | tr '\0' 'a' > "as.txt"
+    data_file="as.txt"
+    chunk_size=65536
+    trailer="x-amz-checksum-crc32c"
+  else
+    current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")
+    year_month_day=$(echo "$current_date_time" | cut -c1-8)
+    # shellcheck disable=SC2153
+    bucket_name="$BUCKET_NAME"
+    key="$OBJECT_KEY"
+    # shellcheck disable=SC2153
+    data_file="$DATA_FILE"
+    chunk_size="${CHUNK_SIZE:=65536}"
+    # shellcheck disable=SC2153
+    final_signature="$FINAL_SIGNATURE"
+    # shellcheck disable=SC2153
+    trailer="$TRAILER"
+  fi
+
+  readonly initial_sts_data="AWS4-HMAC-SHA256-PAYLOAD
+$current_date_time
+$year_month_day/$aws_region/s3/aws4_request"
+
+  readonly initial_trailer_sts_data="AWS4-HMAC-SHA256-TRAILER
+$current_date_time
+$year_month_day/$aws_region/s3/aws4_request"
+
+  if [ "$test_mode" == "true" ]; then
+    declare_test_expected_vals
+  fi
+}
+
+declare_test_expected_vals() {
+  readonly expected_sts_data="AWS4-HMAC-SHA256
+20130524T000000Z
+20130524/us-east-1/s3/aws4_request
+44d48b8c2f70eae815a0198cc73d7a546a73a93359c070abbaa5e6c7de112559"
+
+  readonly expected_sts_chunk_one="AWS4-HMAC-SHA256-PAYLOAD
+20130524T000000Z
+20130524/us-east-1/s3/aws4_request
+106e2a8a18243abcf37539882f36619c00e2dfc72633413f02d3b74544bfeb8e
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+bf718b6f653bebc184e1479f1935b8da974d701b893afcf49e701f3e2f9f9c5a"
+
+  readonly expected_sts_chunk_two="AWS4-HMAC-SHA256-PAYLOAD
+20130524T000000Z
+20130524/us-east-1/s3/aws4_request
+b474d8862b1487a5145d686f57f013e54db672cee1c953b3010fb58501ef5aa2
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+2edc986847e209b4016e141a6dc8716d3207350f416969382d431539bf292e4a"
+
+  readonly expected_sts_chunk_three="AWS4-HMAC-SHA256-PAYLOAD
+20130524T000000Z
+20130524/us-east-1/s3/aws4_request
+1c1344b170168f8e65b41376b44b20fe354e373826ccbbe2c1d40a8cae51e5c7
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+
+  readonly expected_sts_chunk_final="AWS4-HMAC-SHA256-PAYLOAD
+20130524T000000Z
+20130524/us-east-1/s3/aws4_request
+2ca2aba2005185cf7159c6277faf83795951dd77a3a99e6e65d5c9f85863f992
+1e376db7e1a34a8ef1c4bcee131a2d60a1cb62503747488624e10995f448d774"
+
+  readonly expected_canonical_request="PUT
+/examplebucket/chunkObject.txt
+
+content-encoding:aws-chunked
+host:s3.amazonaws.com
+x-amz-content-sha256:STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER
+x-amz-date:20130524T000000Z
+x-amz-decoded-content-length:66560
+x-amz-storage-class:REDUCED_REDUNDANCY
+x-amz-trailer:x-amz-checksum-crc32c
+
+content-encoding;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class;x-amz-trailer
+STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER"
+
+  readonly expected_command="PUT /examplebucket/chunkObject.txt HTTP/1.1\r
+Host: s3.amazonaws.com\r
+x-amz-date: 20130524T000000Z\r
+x-amz-storage-class: REDUCED_REDUNDANCY\r
+Authorization: AWS4-HMAC-SHA256 Credential=AKIAIOSFODNN7EXAMPLE/20130524/us-east-1/s3/aws4_request,SignedHeaders=content-encoding;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class;x-amz-trailer,Signature=106e2a8a18243abcf37539882f36619c00e2dfc72633413f02d3b74544bfeb8e\r
+x-amz-content-sha256: STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER\r
+Content-Encoding: aws-chunked\r
+x-amz-decoded-content-length: 66560\r
+x-amz-trailer: x-amz-checksum-crc32c\r
+Content-Length: 66824\r
+\r\n"
+}
+
+get_file_size_and_content_length() {
+  if ! file_size=$(get_file_size "$data_file"); then
+    log_rest 2 "error getting file size: $file_size"
+    return 1
+  fi
+  if [ "$test_mode" == "true" ] && [ "$file_size" != 66560 ]; then
+    log_rest 2 "file size mismatch ($file_size)"
+    return 1
+  fi
+
+  get_chunk_sizes
+  log_rest 5 "signature string length: ${#signature_string}"
+  content_length=$((length+file_size+${#signature_string}+92))
+  if [ "$test_mode" == "true" ] && [ "$content_length" != 66824 ]; then
+    log_rest 2 "content length mismatch ($content_length)"
+    return 1
+  fi
+}
+
+calculate_checksum() {
+  case "$TRAILER" in
+  "x-amz-checksum-crc32c")
+    if ! checksum=$(DATA_FILE=$data_file TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc32c" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
+      log_rest 2 "error getting checksum: $checksum"
+      return 1
+    fi
+    ;;
+  "x-amz-checksum-crc64nvme")
+    if ! checksum=$(DATA_FILE="$data_file" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc64nvme" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
+      log 2 "error calculating checksum: $checksum"
+      return 1
+    fi
+    ;;
+  "x-amz-checksum-sha256")
+    checksum="$(sha256sum "$data_file" | awk '{print $1}' | xxd -r -p | base64)"
+    ;;
+  "x-amz-checksum-sha1")
+    checksum="$(sha1sum "$data_file" | awk '{print $1}' | xxd -r -p | base64)"
+    ;;
+  "x-amz-checksum-crc32")
+    checksum="$(gzip -c -1 "$data_file" | tail -c8 | od -t x4 -N 4 -A n | awk '{print $1}' | xxd -r -p | base64)"
+    ;;
+  *)
+    log_rest 2 "invalid trailer type: '$TRAILER'"
+    return 1
+    ;;
+  esac
+  signature_string="$TRAILER:$checksum"
+  trailer_payload_hash="$(echo "$signature_string" | sha256sum | awk '{print $1}')"
+}
+
+get_chunk_sizes() {
+  chunk_sizes=()
+  for ((remaining=file_size; 0<remaining; remaining-=chunk_size)); do
+    if ((chunk_size<=remaining)); then
+      next_chunk_size=$chunk_size
+    else
+      next_chunk_size=$remaining
+    fi
+    chunk_sizes+=("$next_chunk_size")
+  done
+  chunk_sizes+=("0")
+  for size in "${chunk_sizes[@]}"; do
+    hex_size=$(printf "%x\n" "$size")
+    length=$((length+${#hex_size}+85))
+  done
+}
+
+get_first_signature() {
+  if [ -n "$FIRST_SIGNATURE" ]; then
+    first_signature="$FIRST_SIGNATURE"
+    return 0
+  fi
+
+  canonical_request="PUT
+/$bucket_name/$key
+
+content-encoding:aws-chunked
+host:$host
+x-amz-content-sha256:STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER
+x-amz-date:$current_date_time
+x-amz-decoded-content-length:$file_size
+x-amz-storage-class:REDUCED_REDUNDANCY
+x-amz-trailer:$trailer
+
+content-encoding;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class;x-amz-trailer
+STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER"
+
+  if [ "$test_mode" == "true" ]; then
+    if [ "$expected_canonical_request" != "$canonical_request" ]; then
+      log_rest 2 "canonical request mismatch ($canonical_request)"
+      exit 1
+    fi
+  fi
+
+  # shellcheck disable=SC2119
+  create_canonical_hash_sts_and_signature
+  # shellcheck disable=SC2154
+  first_signature="$signature"
+
+  if [ "$test_mode" == "true" ]; then
+    # shellcheck disable=SC2154
+    if [ "$sts_data" != "$expected_sts_data" ]; then
+      log_rest 2 "first STS data mismatch ($sts_data)"
+      return 1
+    fi
+    if [ "$first_signature" != "106e2a8a18243abcf37539882f36619c00e2dfc72633413f02d3b74544bfeb8e" ]; then
+      log_rest 2 "Mismatched first signature ($first_signature)"
+      return 1
+    fi
+  fi
+}
+
+create_chunk() {
+  if [ $# -ne 4 ]; then
+    log_rest 2 "'generate_chunk_signature' requires previous signature, file, offset, bytes"
+    return 1
+  fi
+  chunk_sts_data="$initial_sts_data
+$1
+$signature_no_data
+"
+  if [ "$4" -ne 0 ]; then
+    if ! error=$(dd if="$2" of="$2.tmp" bs=1 skip="$3" count="$4" 2>&1); then
+      log_rest 2 "error retrieving data: $error"
+      return 1
+    fi
+    payload_hash="$(sha256sum "$2.tmp" | awk '{print $1}')"
+  else
+    payload_hash="$signature_no_data"
+  fi
+  chunk_sts_data+="$payload_hash"
+  create_canonical_hash_sts_and_signature "$chunk_sts_data"
+  if [ -n "$final_signature" ] && [ $((idx+1)) -eq ${#chunk_sizes[@]} ]; then
+    signature="$final_signature"
+  fi
+  chunk="$(printf "%x" "$4");chunk-signature=$signature"
+  echo -e "$chunk\r" >> "$COMMAND_FILE"
+  if [ "$4" -gt 0 ]; then
+    dd if="$2.tmp" bs="$4" count=1 >> "$COMMAND_FILE"
+    echo -e "\r" >> "$COMMAND_FILE"
+  fi
+  return 0
+}
+
+build_chunks() {
+  if [ $# -ne 1 ]; then
+    log_rest 2 "'build_chunks' requires first signature"
+    return 1
+  fi
+
+  last_signature="$1"
+  idx=0
+  offset=0
+  log_rest 5 "chunk sizes: ${chunk_sizes[*]}"
+  for chunk_size in "${chunk_sizes[@]}"; do
+    if ! build_chunk; then
+      log_rest 2 "error building chunk"
+      return 1
+    fi
+    if [ "$test_mode" == "true" ]; then
+      if ! check_chunks_and_signatures_in_test_mode $idx; then
+        log_rest 2 "error checking test mode signatures"
+        return 1
+      fi
+    fi
+    ((idx++))
+  done
+  return 0
+}
+
+build_chunk() {
+  if [ "$chunk_size" == 0 ]; then
+    if ! create_chunk "$last_signature" "$data_file" 0 0; then
+      log_rest 2 "error creating chunk $idx"
+      return 1
+    fi
+  else
+    if ! create_chunk "$last_signature" "$data_file" "$offset" "${chunk_sizes[$idx]}"; then
+      log_rest 2 "error creating chunk $idx"
+      return 1
+    fi
+    offset=$((offset+chunk_size))
+    last_signature="$signature"
+  fi
+}
+
+build_trailer() {
+  log_rest 5 "payload hash: $payload_hash"
+  final_sts_data="$initial_trailer_sts_data
+$signature
+$trailer_payload_hash"
+  log_rest 5 "$final_sts_data"
+  create_canonical_hash_sts_and_signature "$final_sts_data"
+  log_rest 5 "final signature: $signature"
+  final_chunk="$signature_string\r
+x-amz-trailer-signature:$signature\r
+"
+  echo -en "$final_chunk" >> "$COMMAND_FILE"
+}
+
+check_chunks_and_signatures_in_test_mode() {
+  if [ $# -ne 1 ]; then
+    log_rest 2 "'check_chunks_and_signatures_in_test_mode' requires chunk number"
+    return 1
+  fi
+  case "$1" in
+    0)
+      if [ "$chunk_sts_data" != "$expected_sts_chunk_one" ]; then
+        log_rest 2 "first chunk STS mismatch ($chunk_sts_data)"
+        return 1
+      fi
+      if [ "$signature" != "b474d8862b1487a5145d686f57f013e54db672cee1c953b3010fb58501ef5aa2" ]; then
+        log_rest 2 "first chunk signature mismatch ($signature)"
+        return 1
+      fi
+      ;;
+    1)
+      if [ "$chunk_sts_data" != "$expected_sts_chunk_two" ]; then
+        log_rest 2 "second chunk STS mismatch ($chunk_sts_data)"
+        return 1
+      fi
+      if [ "$signature" != "1c1344b170168f8e65b41376b44b20fe354e373826ccbbe2c1d40a8cae51e5c7" ]; then
+        log_rest 2 "second chunk signature mismatch ($signature)"
+        return 1
+      fi
+      ;;
+    2)
+      if [ "$chunk_sts_data" != "$expected_sts_chunk_three" ]; then
+        log_rest 2 "third chunk STS mismatch ($chunk_sts_data)"
+        return 1
+      fi
+      if [ "$signature" != "2ca2aba2005185cf7159c6277faf83795951dd77a3a99e6e65d5c9f85863f992" ]; then
+        log_rest 2 "third chunk signature mismatch ($signature)"
+        return 1
+      fi
+      ;;
+  esac
+}
+
+check_final_signature() {
+  if [ "$final_sts_data" != "$expected_sts_chunk_final" ]; then
+    log_rest 2 "final chunk STS mismatch ($final_sts_data)"
+    return 1
+  fi
+  if [ "$signature" != "63bddb248ad2590c92712055f51b8e78ab024eead08276b24f010b0efd74843f" ]; then
+    log_rest 2 "final chunk signature mismatch ($signature)"
+    return 1
+  fi
+}
+
+record_command_lines() {
+  while IFS= read -r line; do
+    if ! mask_arg_array "$line"; then
+      return 1
+    fi
+    # shellcheck disable=SC2154
+    echo "${masked_args[*]}" >> "$COMMAND_LOG"
+  done <<< "$command"
+}
+
+build_initial_command() {
+  command="PUT /$bucket_name/$key HTTP/1.1\r
+Host: $host\r
+x-amz-date: $current_date_time\r
+x-amz-storage-class: REDUCED_REDUNDANCY\r
+Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=content-encoding;host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-storage-class;x-amz-trailer,Signature=$first_signature\r
+x-amz-content-sha256: STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER\r
+Content-Encoding: aws-chunked\r
+x-amz-decoded-content-length: $file_size\r
+x-amz-trailer: $trailer\r
+Content-Length: $content_length\r
+\r\n"
+
+if [ "$test_mode" == "true" ] && [ "$command" != "$expected_command" ]; then
+  log_rest 2 "command mismatch ($command)"
+  return 1
+fi
+  echo -en "$command" > "$COMMAND_FILE"
+}
+
+complete_command() {
+  echo -e "\r" >> "$COMMAND_FILE"
+  if [ -n "$COMMAND_LOG" ]; then
+    if ! record_command_lines; then
+      return 1
+    fi
+  fi
+}
+
+load_parameters
+
+if ! calculate_checksum; then
+  log_rest 2 "error calculating trailer checksum"
+  return 1
+fi
+if ! get_file_size_and_content_length; then
+  log_rest 2 "error getting file size and content length"
+  exit 1
+fi
+
+if ! get_first_signature; then
+  log_rest 2 "error getting first signature"
+  exit 1
+fi
+
+if ! build_initial_command; then
+  log_rest 2 "error building command"
+  exit 1
+fi
+if ! build_chunks "$first_signature"; then
+  log_rest 2 "error building chunks"
+  exit 1
+fi
+if ! build_trailer; then
+  log_rest 2 "error building trailer"
+  exit 1
+fi
+if [ "$test_mode" == "true" ]; then
+  if ! check_final_signature; then
+    log_rest 2 "error checking final chunks"
+    exit 1
+  fi
+  log_rest 4 "TEST PASS"
+fi
+if ! complete_command; then
+  log_rest 2 "error adding chunks"
+  exit 1
+fi
+exit 0
diff --git a/tests/test_rest_chunked.sh b/tests/test_rest_chunked.sh
index 9fa6f89..467a485 100755
--- a/tests/test_rest_chunked.sh
+++ b/tests/test_rest_chunked.sh
@@ -70,54 +70,95 @@ source ./tests/util/util_setup.sh
   run setup_bucket "s3api" "$BUCKET_ONE_NAME"
   assert_success
 
-  sleep 10
-
   test_file="test-file"
   run create_file_single_char "$test_file" 8192 'a'
   assert_success
 
   run chunked_upload_success "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
   assert_success
+
+  run download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  assert_success
 }
 
 @test "REST - chunked upload, success (null bytes)" {
   run setup_bucket "s3api" "$BUCKET_ONE_NAME"
   assert_success
 
-  sleep 10
-
   test_file="test-file"
   run create_file_single_char "$test_file" 8192 '\0'
   assert_success
 
   run chunked_upload_success "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
   assert_success
+
+  run download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  assert_success
 }
 
 @test "REST - chunked upload, success (random bytes)" {
   run setup_bucket "s3api" "$BUCKET_ONE_NAME"
   assert_success
 
-  sleep 10
-
   test_file="test-file"
   run create_test_file "$test_file" 10000
   assert_success
 
   run chunked_upload_success "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
   assert_success
+
+  run download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  assert_success
 }
 
 @test "REST - chunked upload, success (zero-byte file)" {
   run setup_bucket "s3api" "$BUCKET_ONE_NAME"
   assert_success
 
-  sleep 10
-
   test_file="test-file"
   run create_test_file "$test_file" 0
   assert_success
 
   run chunked_upload_success "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
   assert_success
+
+  run download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  assert_success
+}
+
+@test "REST - chunked upload - crc32c trailer - success" {
+  run chunked_upload_trailer_success "crc32c"
+  assert_success
+}
+
+@test "test - REST chunked upload - sha1 trailer - success" {
+  run chunked_upload_trailer_success "sha1"
+  assert_success
+}
+
+@test "test - REST chunked upload - sha256 trailer - success" {
+  run chunked_upload_trailer_success "sha256"
+  assert_success
+}
+
+@test "test - REST chunked upload - crc64nvme trailer - success" {
+  run chunked_upload_trailer_success "crc64nvme"
+  assert_success
+}
+
+@test "test - REST chunked upload - crc32 trailer - success" {
+  run chunked_upload_trailer_success "crc32"
+  assert_success
+}
+
+@test "test - REST chunked upload - invalid trailer" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1161"
+  fi
+  test_file="test-file"
+  run setup_bucket_and_file "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run put_chunked_upload_trailer_invalid "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
 }
diff --git a/tests/util/util_bucket.sh b/tests/util/util_bucket.sh
index d05a5bf..4450c84 100644
--- a/tests/util/util_bucket.sh
+++ b/tests/util/util_bucket.sh
@@ -276,6 +276,11 @@ setup_bucket() {
     log 5 "skipping bucket re-creation"
   fi
 
+  # bucket creation and resets take longer to propagate in direct mode
+  if [ "$DIRECT" == "true" ]; then
+    sleep 10
+  fi
+
   if [[ $1 == "s3cmd" ]]; then
     log 5 "putting bucket ownership controls"
     if bucket_exists "s3cmd" "$2" && ! put_bucket_ownership_controls "$2" "BucketOwnerPreferred"; then
diff --git a/tests/util/util_chunked_upload.sh b/tests/util/util_chunked_upload.sh
index 27cfa49..e44bb16 100644
--- a/tests/util/util_chunked_upload.sh
+++ b/tests/util/util_chunked_upload.sh
@@ -130,3 +130,100 @@ attempt_chunked_upload_with_bad_final_signature() {
   fi
   return 0
 }
+
+put_object_chunked_trailer_success() {
+  if [ $# -ne 4 ]; then
+    log 2 "'put_object_chunked_trailer_success' requires data file, bucket, key, checksum type"
+    return 1
+  fi
+  # shellcheck disable=SC2097,SC2098
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" \
+           AWS_ACCESS_KEY_ID="$AWS_ACCESS_KEY_ID" \
+           AWS_SECRET_ACCESS_KEY="$AWS_SECRET_ACCESS_KEY" \
+           AWS_ENDPOINT_URL="$AWS_ENDPOINT_URL" \
+           DATA_FILE="$1" \
+           BUCKET_NAME="$2" \
+           OBJECT_KEY="$3" CHUNK_SIZE=8192 TEST_MODE=false TRAILER="x-amz-checksum-$4" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" COMMAND_FILE="$TEST_FILE_FOLDER/command.txt" ./tests/rest_scripts/put_object_openssl_chunked_trailer_example.sh 2>&1); then
+      log 2 "error creating command: $result"
+      return 1
+    fi
+
+    host="${AWS_ENDPOINT_URL#http*://}"
+    if [ "$host" == "s3.amazonaws.com" ]; then
+      host+=":443"
+    fi
+    if ! result=$(openssl s_client -connect "$host" -ign_eof < "$TEST_FILE_FOLDER/command.txt" 2>&1); then
+      log 2 "error sending openssl command: $result"
+      return 1
+    fi
+    log 5 "result: $result"
+    response_code="$(echo "$result" | grep "HTTP" | awk '{print $2}')"
+    if [ "$response_code" != "200" ]; then
+      log 2 "expected response '200', was '$response_code'"
+      return 1
+    fi
+    return 0
+}
+
+put_chunked_upload_trailer_invalid() {
+  if [ $# -ne 3 ]; then
+    log 2 "'put_object_chunked_trailer_success' requires data file, bucket, key"
+    return 1
+  fi
+  # shellcheck disable=SC2097,SC2098
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" \
+         AWS_ACCESS_KEY_ID="$AWS_ACCESS_KEY_ID" \
+         AWS_SECRET_ACCESS_KEY="$AWS_SECRET_ACCESS_KEY" \
+         AWS_ENDPOINT_URL="$AWS_ENDPOINT_URL" \
+         DATA_FILE="$1" \
+         BUCKET_NAME="$2" \
+         OBJECT_KEY="$3" CHUNK_SIZE=8192 TEST_MODE=false TRAILER="x-amz-checksum-sha10" TEST_FILE_FOLDER="$TEST_FILE_FOLDER" COMMAND_FILE="$TEST_FILE_FOLDER/command.txt" ./tests/rest_scripts/put_object_openssl_chunked_trailer_example.sh 2>&1); then
+    log 2 "error creating command: $result"
+    return 1
+  fi
+
+  host="${AWS_ENDPOINT_URL#http*://}"
+  if [ "$host" == "s3.amazonaws.com" ]; then
+    host+=":443"
+  fi
+  if ! result=$(openssl s_client -connect "$host" -ign_eof < "$TEST_FILE_FOLDER/command.txt" 2>&1); then
+    log 2 "error sending openssl command: $result"
+    return 1
+  fi
+  response_code="$(echo "$result" | grep "HTTP" | awk '{print $2}')"
+  if [ "$response_code" != "400" ]; then
+    log 2 "expected response '400', was '$response_code'"
+    return 1
+  fi
+  error_data="$(echo "$result" | grep "<Error>")"
+  if ! check_xml_element <(echo -n "$error_data") "InvalidRequest" "Error" "Code"; then
+    log 2 "error checking xml element"
+    return 1
+  fi
+  return 0
+}
+
+chunked_upload_trailer_success() {
+  if [ $# -ne 1 ]; then
+    log 2 "'chunked_upload_trailer_success' requires checksum"
+    return 1
+  fi
+  if ! setup_bucket "s3api" "$BUCKET_ONE_NAME"; then
+    log 2 "error setting up bucket"
+    return 1
+  fi
+  test_file="test-file"
+  if ! create_test_file "$test_file" 10000; then
+    log 2 "error creating test file"
+    return 1
+  fi
+  if ! put_object_chunked_trailer_success "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$1"; then
+    log 2 "error performing chunked upload w/trailer"
+    return 1
+  fi
+  if ! download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"; then
+    log 2 "error downloading and comparing file"
+    return 1
+  fi
+  return 0
+}
diff --git a/tests/util/util_file.sh b/tests/util/util_file.sh
index f996a3b..80d5f7f 100644
--- a/tests/util/util_file.sh
+++ b/tests/util/util_file.sh
@@ -15,6 +15,7 @@
 # under the License.
 
 source ./tests/logger.sh
+source ./tests/commands/get_object.sh
 
 # create a test file and export folder.  do so in temp folder
 # params:  filenames
diff --git a/tests/util/util_object.sh b/tests/util/util_object.sh
index cda67bf..8d49da7 100644
--- a/tests/util/util_object.sh
+++ b/tests/util/util_object.sh
@@ -319,7 +319,7 @@ check_checksum_invalid_or_incorrect() {
 
 put_object_rest_checksum() {
   if [ $# -ne 4 ]; then
-    log 2 "'put_object_rest_sha256_checksum' requires data file, bucket name, key, checksum type"
+    log 2 "'put_object_rest_checksum' requires data file, bucket name, key, checksum type"
     return 1
   fi
   # shellcheck disable=SC2097,SC2098
@@ -394,13 +394,13 @@ calculate_incorrect_checksum() {
     incorrect_checksum="$(echo -n "$2"a | gzip -c -1 | tail -c8 | od -t x4 -N 4 -A n | awk '{print $1}' | xxd -r -p | base64)"
     ;;
   "crc32c")
-    if ! incorrect_checksum=$(DATA_FILE=<(echo -n "$2"a) TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc32c" ./tests/rest_scripts/calculate_crc64nvme.sh 2>&1); then
+    if ! incorrect_checksum=$(DATA_FILE=<(echo -n "$2"a) TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc32c" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
       log 2 "error calculating checksum: $incorrect_checksum"
       return 1
     fi
     ;;
   "crc64nvme")
-    if ! incorrect_checksum=$(DATA_FILE=<(echo -n "$2"a) TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc64nvme" ./tests/rest_scripts/calculate_crc64nvme.sh 2>&1); then
+    if ! incorrect_checksum=$(DATA_FILE=<(echo -n "$2"a) TEST_FILE_FOLDER="$TEST_FILE_FOLDER" CHECKSUM_TYPE="crc64nvme" ./tests/rest_scripts/calculate_checksum.sh 2>&1); then
       log 2 "error calculating checksum: $incorrect_checksum"
       return 1
     fi