diff --git a/sdk/attestation/azure-security-attestation/src/private/crypto/inc/crypto.hpp b/sdk/attestation/azure-security-attestation/src/private/crypto/inc/crypto.hpp
index 9a98f204e..7da309db5 100644
--- a/sdk/attestation/azure-security-attestation/src/private/crypto/inc/crypto.hpp
+++ b/sdk/attestation/azure-security-attestation/src/private/crypto/inc/crypto.hpp
@@ -2,6 +2,8 @@
 // SPDX-License-Identifier: MIT
 
 #pragma once
+
+#include <cstdint>
 #include <ctime>
 #include <memory>
 #include <string>
@@ -39,17 +41,18 @@ namespace Azure { namespace Security { namespace Attestation { namespace _detail
        * @return false The signature did not match the payload.
        */
       virtual bool VerifySignature(
-          std::vector<uint8_t> const& payload,
-          std::vector<uint8_t> const& signature) const = 0;
+          std::vector<std::uint8_t> const& payload,
+          std::vector<std::uint8_t> const& signature) const = 0;
       /**
        * @brief Signs a buffer with an Asymmetric private key. Only valid for private asymmetric
        * keys.
        *
        * @param bufferToSign The buffer to be signed.
-       * @return std::vector<uint8_t> Returns the signature of that buffer, signed with the private
-       * key.
+       * @return std::vector<std::uint8_t> Returns the signature of that buffer, signed with the
+       * private key.
        */
-      virtual std::vector<uint8_t> SignBuffer(std::vector<uint8_t> const& bufferToSign) const = 0;
+      virtual std::vector<std::uint8_t> SignBuffer(
+          std::vector<std::uint8_t> const& bufferToSign) const = 0;
       /**
        * @brief Exports the current asymmetric key as a private key (only valid for private
        * asymmetric keys)