Vboot Reference: Add a RSA verify benchmark.

src/platform/vboot_reference/tests/gen_test_cases.sh

+#!/bin/bash
+
+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Generate test cases for use for the RSA verify benchmark.
+
+KEY_DIR=testkeys
+TESTCASE_DIR=testcases
+UTIL_DIR=../utils/
+TEST_FILE=test_file 
+TEST_FILE_SIZE=1000000
+
+hash_algos=( sha1 sha256 sha512 )
+key_lengths=( 1024 2048 4096 8192 ) 
+
+# Generate public key signatures and digest on an input file for 
+# various combinations of message digest algorithms and RSA key sizes.
+function generate_test_signatures {
+  algorithmcounter=0
+  for keylen in ${key_lengths[@]}
+  do
+    for hashalgo in ${hash_algos[@]}
+    do
+      openssl dgst -${hashalgo} -binary -out $1.${hashalgo}.digest $1
+      ${UTIL_DIR}/signature_digest $algorithmcounter $1 | openssl rsautl -sign \
+        -pkcs -inkey ${KEY_DIR}/key_rsa${keylen}.pem \
+        > $1.rsa${keylen}_${hashalgo}.sig
+      let algorithmcounter=algorithmcounter+1
+    done
+  done
+}
+
+function pre_work {
+  # Generate a file with random bytes for signature tests.
+  echo "Generating test file..."
+  dd if=/dev/urandom of=${TESTCASE_DIR}/${TEST_FILE} bs=${TEST_FILE_SIZE} count=1
+}
+
+if [ ! -d "$KEY_DIR" ]
+then
+  echo "You must run gen_test_cases.sh to generate test keys first."
+  exit 1
+fi
+
+if [ ! -d "$TESTCASE_DIR" ]
+then
+  mkdir  "$TESTCASE_DIR"
+fi
+
+pre_work
+echo "Generating test signatures..."
+generate_test_signatures ${TESTCASE_DIR}/$TEST_FILE