Add C O OU and CN constexpressions

Author: pennam

src/utility/SElementArduinoCloudCertificate.cpp

@@ -97,10 +97,10 @@ int SElementArduinoCloudCertificate::read(SecureElement & se, ECP256Certificate
   }
 
   cert.setSubjectCommonName(deviceId);
-  cert.setIssuerCountryName("US");
-  cert.setIssuerOrganizationName("Arduino LLC US");
-  cert.setIssuerOrganizationalUnitName("IT");
-  cert.setIssuerCommonName("Arduino");
+  cert.setIssuerCountryName(SEACC_ISSUER_COUNTRY_NAME);
+  cert.setIssuerOrganizationName(SEACC_ISSUER_ORGANIZATION_NAME);
+  cert.setIssuerOrganizationalUnitName(SEACC_ISSUER_ORGANIZATIONAL_UNIT_NAME);
+  cert.setIssuerCommonName(SEACC_ISSUER_COMMON_NAME);
 
   if (!cert.setPublicKey(publicKey, ECP256_CERT_PUBLIC_KEY_LENGTH)) {
     return 0;
@@ -157,10 +157,10 @@ int SElementArduinoCloudCertificate::rebuild(SecureElement & se, ECP256Certifica
   }
 
   cert.setSubjectCommonName(deviceId);
-  cert.setIssuerCountryName("US");
-  cert.setIssuerOrganizationName("Arduino LLC US");
-  cert.setIssuerOrganizationalUnitName("IT");
-  cert.setIssuerCommonName("Arduino");
+  cert.setIssuerCountryName(SEACC_ISSUER_COUNTRY_NAME);
+  cert.setIssuerOrganizationName(SEACC_ISSUER_ORGANIZATION_NAME);
+  cert.setIssuerOrganizationalUnitName(SEACC_ISSUER_ORGANIZATIONAL_UNIT_NAME);
+  cert.setIssuerCommonName(SEACC_ISSUER_COMMON_NAME);
   cert.setSignature(signatureBytes, sizeof(signatureBytes));
   cert.setAuthorityKeyId(authorityKeyIdentifierBytes, sizeof(authorityKeyIdentifierBytes));
   cert.setSerialNumber(serialNumberBytes, sizeof(serialNumberBytes));

src/utility/SElementArduinoCloudCertificate.h

@@ -34,6 +34,13 @@ class SElementArduinoCloudCertificate : public SElementCertificate
                     const String & authorityKeyIdentifier, const String & signature,
                     const SElementArduinoCloudSlot keySlot = SElementArduinoCloudSlot::Key);
 
+private:
+
+  static const char constexpr SEACC_ISSUER_COUNTRY_NAME[] = "US";
+  static const char constexpr SEACC_ISSUER_ORGANIZATION_NAME[] = "Arduino LLC US";
+  static const char constexpr SEACC_ISSUER_ORGANIZATIONAL_UNIT_NAME[] = "IT";
+  static const char constexpr SEACC_ISSUER_COMMON_NAME[] = "Arduino";
+
 };
 
 #endif /* SECURE_ELEMENT_ARDUINO_CLOUD_CERTIFICATE_H_ */