Spelling fixes

Spelling errors found using github.com/lucasdemarchi/codespell
A tool to fix common misspellings.
This tool is licensed under GNU General Public License, version 2.

Change-Id: I2ca3fd16d7cc84fdce63089b47fefb8f128894fd
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/image_verify.cpp b/image_verify.cpp
index c8d3311..7d59910 100644
--- a/image_verify.cpp
+++ b/image_verify.cpp
@@ -221,7 +221,7 @@
     // Adds all digest algorithms to the internal table
     OpenSSL_add_all_digests();
 
-    // Create Hash structre.
+    // Create Hash structure.
     auto hashStruct = EVP_get_digestbyname(hashFunc.c_str());
     if (!hashStruct)
     {
diff --git a/image_verify.hpp b/image_verify.hpp
index f2387c7..c40713c 100644
--- a/image_verify.hpp
+++ b/image_verify.hpp
@@ -151,7 +151,7 @@
      *        of image specific publickey file and manifest file
      *        using the available public keys and hash functions
      *        in the system.
-     *        Refer code-update documenation for more details.
+     *        Refer code-update documentation for more details.
      */
     bool systemLevelVerify();
 
diff --git a/test/utest.cpp b/test/utest.cpp
index 1c0c803..73d3a0f 100644
--- a/test/utest.cpp
+++ b/test/utest.cpp
@@ -173,7 +173,7 @@
     fs::path signedConfOpenBMCPath;
 };
 
-/** @brief Test for sucess scenario*/
+/** @brief Test for success scenario*/
 TEST_F(SignatureTest, TestSignatureVerify)
 {
     EXPECT_TRUE(signature->verify());