use dht::toHex for crls

Change-Id: I0c4514f9676dc0c29d309c9176e116643e48d198

src/jamidht/conversationrepository.cpp

@@ -182,12 +182,7 @@ add_initial_files(GitRepository& repo, const std::shared_ptr<JamiAccount>& accou
     for (const auto& crl : account->identity().second->getRevocationLists()) {
         if (!crl)
             continue;
-        auto v = crl->getNumber();
-        std::stringstream ss;
-        ss << std::hex;
-        for (const auto& b : v)
-            ss << (unsigned) b;
-        std::string crlPath = crlsPath + DIR_SEPARATOR_STR + deviceId + DIR_SEPARATOR_STR + ss.str()
+        std::string crlPath = crlsPath + DIR_SEPARATOR_STR + deviceId + DIR_SEPARATOR_STR + dht::toHex(crl->getNumber())
                               + ".crl";
         file = fileutils::ofstream(crlPath, std::ios::trunc | std::ios::binary);
         if (!file.is_open()) {

src/security/certstore.cpp

@@ -388,14 +388,8 @@ CertificateStore::pinRevocationList(const std::string& id,
 void
 CertificateStore::pinRevocationList(const std::string& id, const dht::crypto::RevocationList& crl)
 {
-    auto v = crl.getNumber();
-    std::stringstream ss;
-    ss << std::hex;
-    for (const auto& b : v)
-        ss << (unsigned) b;
-
     fileutils::check_dir((crlPath_ + DIR_SEPARATOR_CH + id).c_str());
-    fileutils::saveFile(crlPath_ + DIR_SEPARATOR_CH + id + DIR_SEPARATOR_CH + ss.str(),
+    fileutils::saveFile(crlPath_ + DIR_SEPARATOR_CH + id + DIR_SEPARATOR_CH + dht::toHex(crl.getNumber()),
                         crl.getPacked());
 }