diff --git a/support/include/utils/base64.hpp b/support/include/utils/base64.hpp
index b5099d69..2c63569a 100644
--- a/support/include/utils/base64.hpp
+++ b/support/include/utils/base64.hpp
@@ -1,174 +1,174 @@
-// NOLINTBEGIN
-#ifndef _MACARON_BASE64_H_
-#define _MACARON_BASE64_H_
-
-/**
- * The MIT License (MIT)
- * Copyright (c) 2016 tomykaira
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunknown-warning-option"
-#endif
-
-#ifdef __GNUC__
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion"
-#pragma GCC diagnostic ignored "-Wold-style-cast"
-#pragma GCC diagnostic ignored "-Wuseless-cast"
-#endif
-
-#include <array>
-#include <string>
-#include <vector>
-
-namespace macaron::Base64 {
-static std::string Encode(const unsigned char *data, std::size_t len) {
-  static constexpr std::array<unsigned char, 64U> sEncodingTable{
-      'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-      'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-      'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
-      'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
-      '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/',
-  };
-
-  auto in_len{len};
-  std::string ret;
-  if (in_len > 0) {
-    std::size_t out_len{4U * ((in_len + 2U) / 3U)};
-    ret = std::string(out_len, '\0');
-    std::size_t i;
-    auto *p = reinterpret_cast<unsigned char *>(ret.data());
-
-    for (i = 0U; i < in_len - 2U; i += 3U) {
-      *p++ = sEncodingTable[(data[i] >> 2U) & 0x3F];
-      *p++ = sEncodingTable[((data[i] & 0x3) << 4U) |
-                            ((int)(data[i + 1U] & 0xF0) >> 4U)];
-      *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2) |
-                            ((int)(data[i + 2U] & 0xC0) >> 6U)];
-      *p++ = sEncodingTable[data[i + 2U] & 0x3F];
-    }
-    if (i < in_len) {
-      *p++ = sEncodingTable[(data[i] >> 2U) & 0x3F];
-      if (i == (in_len - 1U)) {
-        *p++ = sEncodingTable[((data[i] & 0x3) << 4U)];
-        *p++ = '=';
-      } else {
-        *p++ = sEncodingTable[((data[i] & 0x3) << 4U) |
-                              ((int)(data[i + 1U] & 0xF0) >> 4U)];
-        *p++ = sEncodingTable[((data[i + 1U] & 0xF) << 2U)];
-      }
-      *p++ = '=';
-    }
-  }
-
-  return ret;
-}
-
-[[maybe_unused]] static std::string Encode(std::string_view data) {
-  return Encode(reinterpret_cast<const unsigned char *>(data.data()),
-                data.size());
-}
-
-[[maybe_unused]] static std::vector<unsigned char>
-Decode(std::string_view input) {
-  static constexpr std::array<unsigned char, 256> kDecodingTable{
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63, 52, 53, 54, 55, 56, 57,
-      58, 59, 60, 61, 64, 64, 64, 64, 64, 64, 64, 0,  1,  2,  3,  4,  5,  6,
-      7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
-      25, 64, 64, 64, 64, 64, 64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
-      37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
-      64, 64, 64, 64,
-  };
-
-  std::vector<unsigned char> out;
-  if (not input.empty()) {
-    auto in_len{input.size()};
-    if (in_len % 4U != 0U) {
-      throw std::runtime_error("Input data size is not a multiple of 4");
-    }
-
-    std::size_t out_len{in_len / 4U * 3U};
-    if (input[in_len - 1U] == '=') {
-      out_len--;
-    }
-    if (input[in_len - 2U] == '=') {
-      out_len--;
-    }
-
-    out.resize(out_len);
-
-    for (std::size_t i = 0U, j = 0U; i < in_len;) {
-      std::uint32_t a =
-          input.at(i) == '='
-              ? 0U & i++
-              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
-      std::uint32_t b =
-          input.at(i) == '='
-              ? 0U & i++
-              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
-      std::uint32_t c =
-          input.at(i) == '='
-              ? 0U & i++
-              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
-      std::uint32_t d =
-          input.at(i) == '='
-              ? 0U & i++
-              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
-
-      std::uint32_t triple =
-          (a << 3U * 6U) + (b << 2U * 6U) + (c << 1U * 6U) + (d << 0U * 6U);
-
-      if (j < out_len)
-        out[j++] = (triple >> 2U * 8U) & 0xFF;
-      if (j < out_len)
-        out[j++] = (triple >> 1U * 8U) & 0xFF;
-      if (j < out_len)
-        out[j++] = (triple >> 0U * 8U) & 0xFF;
-    }
-  }
-
-  return out;
-}
-} // namespace macaron::Base64
-
-#ifdef __GNUC__
-#pragma GCC diagnostic pop
-#endif
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-#endif /* _MACARON_BASE64_H_ */
-
-// NOLINTEND
+// NOLINTBEGIN
+#ifndef _MACARON_BASE64_H_
+#define _MACARON_BASE64_H_
+
+/**
+ * The MIT License (MIT)
+ * Copyright (c) 2016 tomykaira
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-warning-option"
+#endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+
+#include <array>
+#include <string>
+#include <vector>
+
+namespace macaron::Base64 {
+static std::string Encode(const unsigned char *data, std::size_t len) {
+  static constexpr std::array<unsigned char, 64U> sEncodingTable{
+      'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+      'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+      'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+      'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+      '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/',
+  };
+
+  auto in_len{len};
+  std::string ret;
+  if (in_len > 0) {
+    std::size_t out_len{4U * ((in_len + 2U) / 3U)};
+    ret = std::string(out_len, '\0');
+    std::size_t i;
+    auto *p = reinterpret_cast<unsigned char *>(ret.data());
+
+    for (i = 0U; i < in_len - 2U; i += 3U) {
+      *p++ = sEncodingTable[(data[i] >> 2U) & 0x3F];
+      *p++ = sEncodingTable[((data[i] & 0x3) << 4U) |
+                            ((int)(data[i + 1U] & 0xF0) >> 4U)];
+      *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2) |
+                            ((int)(data[i + 2U] & 0xC0) >> 6U)];
+      *p++ = sEncodingTable[data[i + 2U] & 0x3F];
+    }
+    if (i < in_len) {
+      *p++ = sEncodingTable[(data[i] >> 2U) & 0x3F];
+      if (i == (in_len - 1U)) {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4U)];
+        *p++ = '=';
+      } else {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4U) |
+                              ((int)(data[i + 1U] & 0xF0) >> 4U)];
+        *p++ = sEncodingTable[((data[i + 1U] & 0xF) << 2U)];
+      }
+      *p++ = '=';
+    }
+  }
+
+  return ret;
+}
+
+[[maybe_unused]] static std::string Encode(std::string_view data) {
+  return Encode(reinterpret_cast<const unsigned char *>(data.data()),
+                data.size());
+}
+
+[[maybe_unused]] static std::vector<unsigned char>
+Decode(std::string_view input) {
+  static constexpr std::array<unsigned char, 256> kDecodingTable{
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63, 52, 53, 54, 55, 56, 57,
+      58, 59, 60, 61, 64, 64, 64, 64, 64, 64, 64, 0,  1,  2,  3,  4,  5,  6,
+      7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+      25, 64, 64, 64, 64, 64, 64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
+      37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64,
+  };
+
+  std::vector<unsigned char> out;
+  if (not input.empty()) {
+    auto in_len{input.size()};
+    if (in_len % 4U != 0U) {
+      throw std::runtime_error("Input data size is not a multiple of 4");
+    }
+
+    std::size_t out_len{in_len / 4U * 3U};
+    if (input[in_len - 1U] == '=') {
+      out_len--;
+    }
+    if (input[in_len - 2U] == '=') {
+      out_len--;
+    }
+
+    out.resize(out_len);
+
+    for (std::size_t i = 0U, j = 0U; i < in_len;) {
+      std::uint32_t a =
+          input.at(i) == '='
+              ? 0U & i++
+              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
+      std::uint32_t b =
+          input.at(i) == '='
+              ? 0U & i++
+              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
+      std::uint32_t c =
+          input.at(i) == '='
+              ? 0U & i++
+              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
+      std::uint32_t d =
+          input.at(i) == '='
+              ? 0U & i++
+              : kDecodingTable[static_cast<unsigned char>(input.at(i++))];
+
+      std::uint32_t triple =
+          (a << 3U * 6U) + (b << 2U * 6U) + (c << 1U * 6U) + (d << 0U * 6U);
+
+      if (j < out_len)
+        out[j++] = (triple >> 2U * 8U) & 0xFF;
+      if (j < out_len)
+        out[j++] = (triple >> 1U * 8U) & 0xFF;
+      if (j < out_len)
+        out[j++] = (triple >> 0U * 8U) & 0xFF;
+    }
+  }
+
+  return out;
+}
+} // namespace macaron::Base64
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+#endif /* _MACARON_BASE64_H_ */
+
+// NOLINTEND
diff --git a/support/include/utils/collection.hpp b/support/include/utils/collection.hpp
index ad46600c..61ea7e11 100644
--- a/support/include/utils/collection.hpp
+++ b/support/include/utils/collection.hpp
@@ -24,6 +24,8 @@
 
 #include "utils/config.hpp"
 
+#include "utils/string.hpp"
+
 namespace repertory::utils::collection {
 template <typename col_t>
 [[nodiscard]] inline auto
@@ -94,21 +96,6 @@ inline auto remove_element(col_t &collection,
   return collection;
 }
 
-template <typename col_t, typename string_t>
-[[nodiscard]] inline auto to_hex_string_t(const col_t &collection) -> string_t {
-  static_assert(sizeof(typename col_t::value_type) == 1U,
-                "value_type must be 1 byte in size");
-  static constexpr const auto mask = 0xFF;
-
-  std::basic_stringstream<typename string_t::value_type> stream{};
-  for (auto &&val : collection) {
-    stream << std::setfill('0') << std::setw(2) << std::hex
-           << (static_cast<std::uint32_t>(val) & mask);
-  }
-
-  return stream.str();
-}
-
 template <typename val_t>
 inline auto from_hex_string(std::string_view str, val_t &val) -> bool {
   return from_hex_string_t<val_t, std::string>(str, val);
@@ -121,12 +108,22 @@ inline auto from_hex_string(std::wstring_view str, val_t &val) -> bool {
 
 template <typename col_t>
 inline auto to_hex_string(const col_t &collection) -> std::string {
-  return to_hex_string_t<col_t, std::string>(collection);
+  static_assert(sizeof(typename col_t::value_type) == 1U,
+                "value_type must be 1 byte in size");
+  static constexpr const auto mask = 0xFF;
+
+  std::stringstream stream{};
+  for (auto &&val : collection) {
+    stream << std::setfill('0') << std::setw(2) << std::hex
+           << (static_cast<std::uint32_t>(val) & mask);
+  }
+
+  return stream.str();
 }
 
 template <typename col_t>
 inline auto to_hex_wstring(const col_t &collection) -> std::wstring {
-  return to_hex_string_t<col_t, std::wstring>(collection);
+  return utils::string::from_utf8(to_hex_string<col_t>(collection));
 }
 } // namespace repertory::utils::collection
 
diff --git a/support/include/utils/common.hpp b/support/include/utils/common.hpp
index fd670173..952e426e 100644
--- a/support/include/utils/common.hpp
+++ b/support/include/utils/common.hpp
@@ -90,10 +90,6 @@ get_next_available_port(std::uint16_t first_port,
                         std::uint16_t &available_port) -> bool;
 #endif // defined(PROJECT_ENABLE_BOOST)
 
-[[nodiscard]] auto resolve_variables(std::string str) -> std::string;
-
-[[nodiscard]] auto resolve_variables(std::wstring_view str) -> std::wstring;
-
 template <typename result_t, typename data_t>
 inline constexpr auto divide_with_ceiling(result_t numerator,
                                           data_t denominator) -> result_t {
diff --git a/support/include/utils/encryption.hpp b/support/include/utils/encryption.hpp
index 445e294f..28e55ca0 100644
--- a/support/include/utils/encryption.hpp
+++ b/support/include/utils/encryption.hpp
@@ -25,31 +25,46 @@
 
 #include "utils/config.hpp"
 
-namespace repertory::utils::encryption {
-using hash_256_t = std::array<unsigned char, 32U>;
-using hash_256_func_t = std::function<hash_256_t(std::string_view)>;
-using key_type = std::array<unsigned char, 32U>;
+#include "utils/hash.hpp"
 
+namespace repertory::utils::encryption {
 inline constexpr const std::uint32_t encryption_header_size{
     crypto_aead_xchacha20poly1305_IETF_NPUBBYTES +
         crypto_aead_xchacha20poly1305_IETF_ABYTES,
 };
 
-[[nodiscard]] auto generate_key(std::string_view encryption_token) -> key_type;
+template <typename hash_t>
+[[nodiscard]] inline auto default_create_hash(std::string_view) -> hash_t;
+
+template <typename hash_t>
+[[nodiscard]] inline auto default_create_hash(std::wstring_view) -> hash_t;
+
+template <typename hash_t>
+inline auto generate_key(
+    std::string_view password,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) -> hash_t;
+
+template <typename hash_t>
+inline auto generate_key(
+    std::wstring_view password,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) -> hash_t;
 
 #if defined(PROJECT_ENABLE_BOOST)
-[[nodiscard]] auto decrypt_data(
-    std::string_view data, std::string_view password,
-    std::optional<hash_256_func_t> hasher = std::nullopt) -> data_buffer;
+[[nodiscard]] auto decrypt_data(std::string_view password,
+                                std::string_view data) -> data_buffer;
 
-[[nodiscard]] auto encrypt_data(
-    std::string_view data, std::string_view password,
-    std::optional<hash_256_func_t> hasher = std::nullopt) -> data_buffer;
+[[nodiscard]] auto encrypt_data(std::string_view password,
+                                std::string_view data) -> data_buffer;
 
-template <typename result>
-[[nodiscard]] inline auto
-decrypt_data(const key_type &key, const unsigned char *buffer,
-             std::size_t buffer_size, result &res) -> bool {
+template <typename result, typename arr_t, std::size_t arr_size>
+[[nodiscard]] inline auto decrypt_data(const std::array<arr_t, arr_size> &key,
+                                       const unsigned char *buffer,
+                                       std::size_t buffer_size,
+                                       result &res) -> bool {
   if (buffer_size > encryption_header_size) {
     const std::uint32_t size =
         boost::endian::native_to_big(static_cast<std::uint32_t>(buffer_size));
@@ -65,34 +80,43 @@ decrypt_data(const key_type &key, const unsigned char *buffer,
   return false;
 }
 
-template <typename buffer, typename result>
-[[nodiscard]] inline auto decrypt_data(const key_type &key, const buffer &buf,
-                                       result &res) -> bool {
+template <typename buffer, typename result, typename arr_t,
+          std::size_t arr_size>
+[[nodiscard]] inline auto decrypt_data(const std::array<arr_t, arr_size> &key,
+                                       const buffer &buf, result &res) -> bool {
   return decrypt_data<result>(
       key, reinterpret_cast<const unsigned char *>(buf.data()), buf.size(),
       res);
 }
 
-template <typename buffer, typename result>
-[[nodiscard]] inline auto decrypt_data(std::string_view encryption_token,
-                                       const buffer &buf, result &res) -> bool {
-  return decrypt_data<buffer, result>(generate_key(encryption_token), buf, res);
+template <typename buffer, typename result, typename hash_t = hash_256_t>
+[[nodiscard]] inline auto decrypt_data(
+    std::string_view password, const buffer &buf, result &res,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) -> bool {
+  return decrypt_data<buffer, result>(generate_key(password, hasher), buf, res);
 }
 
-template <typename result>
-[[nodiscard]] inline auto
-decrypt_data(std::string_view encryption_token, const unsigned char *buffer,
-             std::size_t buffer_size, result &res) -> bool {
-  return decrypt_data<result>(generate_key(encryption_token), buffer,
+template <typename result, typename hash_t = hash_256_t>
+[[nodiscard]] inline auto decrypt_data(
+    std::string_view password, const unsigned char *buffer,
+    std::size_t buffer_size, result &res,
+
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) -> bool {
+  return decrypt_data<result>(generate_key(password, hasher), buffer,
                               buffer_size, res);
 }
 
-template <typename result>
+template <typename result, typename arr_t, std::size_t arr_size>
 inline void
 encrypt_data(const std::array<unsigned char,
                               crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> &iv,
-             const key_type &key, const unsigned char *buffer,
-             std::size_t buffer_size, result &res) {
+             const std::array<arr_t, arr_size> &key,
+             const unsigned char *buffer, std::size_t buffer_size,
+             result &res) {
   std::array<unsigned char, crypto_aead_xchacha20poly1305_IETF_ABYTES> mac{};
 
   const std::uint32_t size = boost::endian::native_to_big(
@@ -113,47 +137,116 @@ encrypt_data(const std::array<unsigned char,
   std::memcpy(&res[iv.size()], mac.data(), mac.size());
 }
 
-template <typename result>
-inline void encrypt_data(const key_type &key, const unsigned char *buffer,
-                         std::size_t buffer_size, result &res) {
+template <typename result, typename s, std::size_t t>
+inline void encrypt_data(const std::array<s, t> &key,
+                         const unsigned char *buffer, std::size_t buffer_size,
+                         result &res) {
   std::array<unsigned char, crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> iv{};
   randombytes_buf(iv.data(), iv.size());
 
   encrypt_data<result>(iv, key, buffer, buffer_size, res);
 }
 
-template <typename result>
-inline void encrypt_data(std::string_view encryption_token,
-                         const unsigned char *buffer, std::size_t buffer_size,
-                         result &res) {
-  encrypt_data<result>(generate_key(encryption_token), buffer, buffer_size,
+template <typename result, typename hash_t = hash_256_t>
+inline void encrypt_data(
+    std::string_view password, const unsigned char *buffer,
+    std::size_t buffer_size, result &res,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) {
+  encrypt_data<result>(generate_key(password, hasher), buffer, buffer_size,
                        res);
 }
 
-template <typename buffer, typename result>
-inline void encrypt_data(std::string_view encryption_token, const buffer &buf,
-                         result &res) {
-  encrypt_data<result>(generate_key(encryption_token),
+template <typename buffer, typename result, typename hash_t = hash_256_t>
+inline void encrypt_data(
+    std::string_view password, const buffer &buf, result &res,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher = std::nullopt) {
+  encrypt_data<result>(generate_key(password, hasher),
                        reinterpret_cast<const unsigned char *>(buf.data()),
                        buf.size(), res);
 }
 
-template <typename buffer, typename result>
-inline void encrypt_data(const key_type &key, const buffer &buf, result &res) {
+template <typename buffer, typename result, typename s, std::size_t t>
+inline void encrypt_data(const std::array<s, t> &key, const buffer &buf,
+                         result &res) {
   encrypt_data<result>(key, reinterpret_cast<const unsigned char *>(buf.data()),
                        buf.size(), res);
 }
 
-template <typename buffer, typename result>
+template <typename buffer, typename result, typename s, std::size_t t>
 inline void
 encrypt_data(const std::array<unsigned char,
                               crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> &iv,
-             const key_type &key, const buffer &buf, result &res) {
+             const std::array<s, t> &key, const buffer &buf, result &res) {
   encrypt_data<result>(iv, key,
                        reinterpret_cast<const unsigned char *>(buf.data()),
                        buf.size(), res);
 }
 #endif // defined(PROJECT_ENABLE_BOOST)
+
+template <>
+inline auto
+default_create_hash<hash_256_t>(std::string_view data) -> hash_256_t {
+  return create_hash_sha256(data);
+}
+
+template <>
+inline auto
+default_create_hash<hash_256_t>(std::wstring_view data) -> hash_256_t {
+  return create_hash_sha256(data);
+}
+
+template <>
+inline auto
+default_create_hash<hash_384_t>(std::string_view data) -> hash_384_t {
+  return create_hash_blake2b_384(data);
+}
+
+template <>
+inline auto
+default_create_hash<hash_384_t>(std::wstring_view data) -> hash_384_t {
+  return create_hash_blake2b_384(data);
+}
+
+template <>
+inline auto
+default_create_hash<hash_512_t>(std::string_view data) -> hash_512_t {
+  return create_hash_sha512(data);
+}
+
+template <>
+inline auto
+default_create_hash<hash_512_t>(std::wstring_view data) -> hash_512_t {
+  return create_hash_sha512(data);
+}
+
+template <typename hash_t>
+inline auto generate_key(
+    std::string_view password,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher) -> hash_t {
+  return hasher.has_value() ? (*hasher)(reinterpret_cast<const unsigned char *>(
+                                            password.data()),
+                                        password.size())
+                            : default_create_hash<hash_t>(password);
+}
+
+template <typename hash_t>
+inline auto generate_key(
+    std::wstring_view password,
+    std::optional<
+        std::function<hash_t(const unsigned char *data, std::size_t size)>>
+        hasher) -> hash_t {
+  return hasher.has_value()
+             ? (*hasher)(
+                   reinterpret_cast<const unsigned char *>(password.data()),
+                   password.size() * sizeof(std::wstring_view::value_type))
+             : default_create_hash<hash_t>(password);
+}
 } // namespace repertory::utils::encryption
 
 #endif // defined(PROJECT_ENABLE_LIBSODIUM)
diff --git a/support/include/utils/file.hpp b/support/include/utils/file.hpp
index 1d059125..3f5c3df2 100644
--- a/support/include/utils/file.hpp
+++ b/support/include/utils/file.hpp
@@ -74,21 +74,21 @@ public:
 
   [[nodiscard]] auto truncate(std::size_t size) -> bool;
 
-#if defined(PROJECT_ENABLE_JSON)
-  [[nodiscard]] auto write(const nlohmann::json &data,
-                           std::size_t *total_written = nullptr) -> bool {
-    auto str_data = data.dump();
-    return write_(reinterpret_cast<const unsigned char *>(str_data.c_str()),
-                  str_data.size(), 0U, total_written);
-  }
-#endif // defined(PROJECT_ENABLE_JSON)
-
   [[nodiscard]] auto write(const data_buffer &data, std::uint64_t offset,
                            std::size_t *total_written = nullptr) -> bool {
     return write_(reinterpret_cast<const unsigned char *>(data.data()),
                   data.size(), offset, total_written);
   }
 
+#if defined(PROJECT_ENABLE_JSON)
+  [[nodiscard]] auto write_json(const nlohmann::json &data,
+                                std::size_t *total_written = nullptr) -> bool {
+    auto str_data = data.dump();
+    return write_(reinterpret_cast<const unsigned char *>(str_data.c_str()),
+                  str_data.size(), 0U, total_written);
+  }
+#endif // defined(PROJECT_ENABLE_JSON)
+
   [[nodiscard]] operator bool() const { return stream_.is_open(); }
 
 private:
diff --git a/support/include/utils/hash.hpp b/support/include/utils/hash.hpp
new file mode 100644
index 00000000..9c74f216
--- /dev/null
+++ b/support/include/utils/hash.hpp
@@ -0,0 +1,255 @@
+/*
+  Copyright <2018-2024> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+#ifndef REPERTORY_INCLUDE_UTILS_HASH_HPP_
+#define REPERTORY_INCLUDE_UTILS_HASH_HPP_
+#if defined(PROJECT_ENABLE_LIBSODIUM)
+
+#include "utils/config.hpp"
+
+namespace repertory::utils::encryption {
+using hash_256_t = std::array<unsigned char, 32U>;
+using hash_384_t = std::array<unsigned char, 48U>;
+using hash_512_t = std::array<unsigned char, 64U>;
+
+[[nodiscard]] auto create_hash_blake2b_256(std::string_view data) -> hash_256_t;
+
+[[nodiscard]] auto
+create_hash_blake2b_256(std::wstring_view data) -> hash_256_t;
+
+[[nodiscard]] auto create_hash_blake2b_384(std::string_view data) -> hash_384_t;
+
+[[nodiscard]] auto
+create_hash_blake2b_384(std::wstring_view data) -> hash_384_t;
+
+[[nodiscard]] auto create_hash_blake2b_512(std::string_view data) -> hash_512_t;
+
+[[nodiscard]] auto
+create_hash_blake2b_512(std::wstring_view data) -> hash_512_t;
+
+template <typename char_t, typename hash_t>
+[[nodiscard]] auto
+create_hash_blake2b_t(std::basic_string_view<char_t> data) -> hash_t;
+
+template <typename hash_t>
+[[nodiscard]] auto create_hash_blake2b_t(const data_buffer &data) -> hash_t;
+
+template <typename char_t, typename hash_t>
+[[nodiscard]] auto create_hash_blake2b_t(
+    const std::vector<std::basic_string<char_t>> &data) -> hash_t;
+
+template <typename arr_t, std::size_t arr_size>
+[[nodiscard]] auto
+create_hash_blake2b_t(const std::vector<std::array<arr_t, arr_size>> &data)
+    -> std::array<arr_t, arr_size>;
+
+[[nodiscard]] auto create_hash_sha256(std::string_view data) -> hash_256_t;
+
+[[nodiscard]] auto create_hash_sha256(std::wstring_view data) -> hash_256_t;
+
+[[nodiscard]] auto create_hash_sha512(std::string_view data) -> hash_512_t;
+
+[[nodiscard]] auto create_hash_sha512(std::wstring_view data) -> hash_512_t;
+
+template <typename char_t>
+[[nodiscard]] auto
+create_hash_sha256_t(std::basic_string_view<char_t> data) -> hash_256_t;
+
+template <typename char_t>
+[[nodiscard]] auto create_hash_sha512_t(std::basic_string_view<char_t> data)
+    -> repertory::utils::encryption::hash_512_t;
+
+template <typename hash_t>
+auto create_hash_blake2b_t(const data_buffer &data) -> hash_t {
+  hash_t hash{};
+
+  crypto_generichash_blake2b_state state{};
+  auto res = crypto_generichash_blake2b_init(&state, nullptr, 0U, hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize blake2b|" +
+                             std::to_string(res));
+  }
+
+  res = crypto_generichash_blake2b_update(
+      &state, reinterpret_cast<const unsigned char *>(data.data()),
+      data.size() * sizeof(data_buffer::value_type));
+  if (res != 0) {
+    throw std::runtime_error("failed to update blake2b|" + std::to_string(res));
+  }
+
+  res = crypto_generichash_blake2b_final(&state, hash.data(), hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize blake2b|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+
+template <typename arr_t, std::size_t arr_size>
+auto create_hash_blake2b_t(const std::vector<std::array<arr_t, arr_size>> &data)
+    -> std::array<arr_t, arr_size> {
+  using hash_t = std::array<arr_t, arr_size>;
+  hash_t hash{};
+
+  crypto_generichash_blake2b_state state{};
+  auto res = crypto_generichash_blake2b_init(&state, nullptr, 0U, hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize blake2b|" +
+                             std::to_string(res));
+  }
+
+  for (const auto &item : data) {
+    res = crypto_generichash_blake2b_update(
+        &state, reinterpret_cast<const unsigned char *>(item.data()),
+        item.size());
+    if (res != 0) {
+      throw std::runtime_error("failed to update blake2b|" +
+                               std::to_string(res));
+    }
+  }
+
+  res = crypto_generichash_blake2b_final(&state, hash.data(), hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize blake2b|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+
+template <typename char_t, typename hash_t>
+auto create_hash_blake2b_t(const std::vector<std::basic_string<char_t>> &data)
+    -> hash_t {
+  hash_t hash{};
+
+  crypto_generichash_blake2b_state state{};
+  auto res = crypto_generichash_blake2b_init(&state, nullptr, 0U, hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize blake2b|" +
+                             std::to_string(res));
+  }
+
+  for (const auto &item : data) {
+    res = crypto_generichash_blake2b_update(
+        &state, reinterpret_cast<const unsigned char *>(item.data()),
+        item.size() * sizeof(char_t));
+    if (res != 0) {
+      throw std::runtime_error("failed to update blake2b|" +
+                               std::to_string(res));
+    }
+  }
+
+  res = crypto_generichash_blake2b_final(&state, hash.data(), hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize blake2b|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+
+template <typename char_t, typename hash_t>
+auto create_hash_blake2b_t(std::basic_string_view<char_t> data) -> hash_t {
+  hash_t hash{};
+
+  crypto_generichash_blake2b_state state{};
+  auto res = crypto_generichash_blake2b_init(&state, nullptr, 0U, hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize blake2b|" +
+                             std::to_string(res));
+  }
+
+  res = crypto_generichash_blake2b_update(
+      &state, reinterpret_cast<const unsigned char *>(data.data()),
+      data.size() * sizeof(char_t));
+  if (res != 0) {
+    throw std::runtime_error("failed to update blake2b|" + std::to_string(res));
+  }
+
+  res = crypto_generichash_blake2b_final(&state, hash.data(), hash.size());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize blake2b|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+
+template <typename char_t>
+auto create_hash_sha256_t(std::basic_string_view<char_t> data)
+    -> repertory::utils::encryption::hash_256_t {
+  repertory::utils::encryption::hash_256_t hash{};
+
+  crypto_hash_sha256_state state{};
+  auto res = crypto_hash_sha256_init(&state);
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize sha256|" +
+                             std::to_string(res));
+  }
+
+  res = crypto_hash_sha256_update(
+      &state, reinterpret_cast<const unsigned char *>(data.data()),
+      data.size() * sizeof(char_t));
+  if (res != 0) {
+    throw std::runtime_error("failed to update sha256|" + std::to_string(res));
+  }
+
+  res = crypto_hash_sha256_final(&state, hash.data());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize sha256|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+
+template <typename char_t>
+auto create_hash_sha512_t(std::basic_string_view<char_t> data)
+    -> repertory::utils::encryption::hash_512_t {
+  repertory::utils::encryption::hash_512_t hash{};
+
+  crypto_hash_sha512_state state{};
+  auto res = crypto_hash_sha512_init(&state);
+  if (res != 0) {
+    throw std::runtime_error("failed to initialize sha512|" +
+                             std::to_string(res));
+  }
+
+  res = crypto_hash_sha512_update(
+      &state, reinterpret_cast<const unsigned char *>(data.data()),
+      data.size() * sizeof(char_t));
+  if (res != 0) {
+    throw std::runtime_error("failed to update sha512|" + std::to_string(res));
+  }
+
+  res = crypto_hash_sha512_final(&state, hash.data());
+  if (res != 0) {
+    throw std::runtime_error("failed to finalize sha512|" +
+                             std::to_string(res));
+  }
+
+  return hash;
+}
+} // namespace repertory::utils::encryption
+
+#endif // defined(PROJECT_ENABLE_LIBSODIUM)
+#endif // REPERTORY_INCLUDE_UTILS_HASH_HPP_
diff --git a/support/src/utils/common.cpp b/support/src/utils/common.cpp
index 79dd536b..72b926e6 100644
--- a/support/src/utils/common.cpp
+++ b/support/src/utils/common.cpp
@@ -86,12 +86,21 @@ auto create_uuid_wstring() -> std::wstring {
 #if defined(PROJECT_ENABLE_LIBSODIUM)
 auto generate_random_string(std::size_t length) -> std::string {
   std::string ret;
+  if (length == 0U) {
+    return ret;
+  }
+
   ret.resize(length);
-  for (std::size_t i = 0U; i < length; i++) {
-    do {
-      ret[i] = static_cast<char>(generate_random<std::uint8_t>() % 74 + 48);
-    } while (((ret.at(i) >= 91) && (ret.at(i) <= 96)) ||
-             ((ret.at(i) >= 58) && (ret.at(i) <= 64)));
+  for (auto &ch : ret) {
+    std::array<unsigned int, 3U> random_list{
+        generate_random_between(0U, 57U),
+        generate_random_between(65U, 90U),
+        generate_random_between(97U, 255U),
+    };
+    ch = static_cast<char>(
+        random_list.at(repertory::utils::generate_random_between(0U, 2U)) %
+            74U +
+        48U);
   }
 
   return ret;
@@ -118,6 +127,10 @@ auto get_environment_variable(std::wstring_view variable) -> std::wstring {
 #if defined(PROJECT_ENABLE_BOOST)
 auto get_next_available_port(std::uint16_t first_port,
                              std::uint16_t &available_port) -> bool {
+  if (first_port == 0U) {
+    return false;
+  }
+
   using namespace boost::asio;
   using ip::tcp;
 
@@ -141,13 +154,4 @@ auto get_next_available_port(std::uint16_t first_port,
   return not error_code;
 }
 #endif // defined(PROJECT_ENABLE_BOOST)
-
-auto resolve_variables(std::string str) -> std::string {
-  return utils::path::absolute(str);
-}
-
-auto resolve_variables(std::wstring_view str) -> std::wstring {
-  return utils::string::from_utf8(
-      resolve_variables(utils::string::to_utf8(str)));
-}
 } // namespace repertory::utils
diff --git a/support/src/utils/encryption.cpp b/support/src/utils/encryption.cpp
index a67cd20c..cb146c69 100644
--- a/support/src/utils/encryption.cpp
+++ b/support/src/utils/encryption.cpp
@@ -22,33 +22,11 @@
 #include "utils/encryption.hpp"
 
 #if defined(PROJECT_ENABLE_LIBSODIUM)
-namespace {
-using nonce_t =
-    std::array<unsigned char, crypto_aead_xchacha20poly1305_ietf_NPUBBYTES>;
-
-static constexpr const auto nonce_size{sizeof(nonce_t)};
-
-[[nodiscard]] static auto create_hash_256(std::string_view data)
-    -> repertory::utils::encryption::hash_256_t {
-  repertory::utils::encryption::hash_256_t hash{};
-
-  crypto_generichash_blake2b_state state{};
-  crypto_generichash_blake2b_init(&state, nullptr, 0U, hash.size());
-  crypto_generichash_blake2b_update(
-      &state, reinterpret_cast<const unsigned char *>(data.data()),
-      data.size());
-  crypto_generichash_blake2b_final(&state, hash.data(), hash.size());
-
-  return hash;
-}
-} // namespace
-
 namespace repertory::utils::encryption {
 #if defined(PROJECT_ENABLE_BOOST)
-auto decrypt_data(std::string_view data, std::string_view password,
-                  std::optional<hash_256_func_t> hasher) -> data_buffer {
-  auto key =
-      hasher.has_value() ? (*hasher)(password) : create_hash_256(password);
+auto decrypt_data(std::string_view password,
+                  std::string_view data) -> data_buffer {
+  auto key = generate_key<hash_256_t>(password);
 
   data_buffer buf{};
   if (not decrypt_data(key,
@@ -60,10 +38,9 @@ auto decrypt_data(std::string_view data, std::string_view password,
   return buf;
 }
 
-auto encrypt_data(std::string_view data, std::string_view password,
-                  std::optional<hash_256_func_t> hasher) -> data_buffer {
-  auto key =
-      hasher.has_value() ? (*hasher)(password) : create_hash_256(password);
+auto encrypt_data(std::string_view password,
+                  std::string_view data) -> data_buffer {
+  auto key = generate_key<hash_256_t>(password);
 
   data_buffer buf{};
   encrypt_data(key, reinterpret_cast<const unsigned char *>(data.data()),
@@ -72,30 +49,6 @@ auto encrypt_data(std::string_view data, std::string_view password,
   return buf;
 }
 #endif // defined(PROJECT_ENABLE_BOOST)
-
-auto generate_key(std::string_view encryption_token) -> key_type {
-  crypto_hash_sha256_state state{};
-  auto res = crypto_hash_sha256_init(&state);
-  if (res != 0) {
-    throw std::runtime_error("failed to initialize sha256|" +
-                             std::to_string(res));
-  }
-  res = crypto_hash_sha256_update(
-      &state, reinterpret_cast<const unsigned char *>(encryption_token.data()),
-      encryption_token.size());
-  if (res != 0) {
-    throw std::runtime_error("failed to update sha256|" + std::to_string(res));
-  }
-
-  key_type ret{};
-  res = crypto_hash_sha256_final(&state, ret.data());
-  if (res != 0) {
-    throw std::runtime_error("failed to finalize sha256|" +
-                             std::to_string(res));
-  }
-
-  return ret;
-}
 } // namespace repertory::utils::encryption
 
 #endif // defined(PROJECT_ENABLE_LIBSODIUM)
diff --git a/support/src/utils/file.cpp b/support/src/utils/file.cpp
index a938454e..1657e842 100644
--- a/support/src/utils/file.cpp
+++ b/support/src/utils/file.cpp
@@ -276,7 +276,7 @@ auto read_json_file(std::string_view path, nlohmann::json &data) -> bool {
 #if defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
       if (password.has_value()) {
         auto decrypted_data =
-            utils::encryption::decrypt_data(json_text, *password);
+            utils::encryption::decrypt_data(*password, json_text);
         json_text = {decrypted_data.begin(), decrypted_data.end()};
       }
 #endif // defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
@@ -322,7 +322,7 @@ auto write_json_file(std::string_view path,
 
 #if defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
     if (password.has_value()) {
-      return file.write(utils::encryption::encrypt_data(data.dump(), *password),
+      return file.write(utils::encryption::encrypt_data(*password, data.dump()),
                         0U);
     }
 #endif // defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
diff --git a/support/src/utils/hash.cpp b/support/src/utils/hash.cpp
new file mode 100644
index 00000000..7cc2fe52
--- /dev/null
+++ b/support/src/utils/hash.cpp
@@ -0,0 +1,70 @@
+/*
+  Copyright <2018-2024> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+#include "utils/hash.hpp"
+
+#if defined(PROJECT_ENABLE_LIBSODIUM)
+
+namespace {} // namespace
+
+namespace repertory::utils::encryption {
+auto create_hash_blake2b_256(std::string_view data) -> hash_256_t {
+  return create_hash_blake2b_t<char, hash_256_t>(data);
+}
+
+auto create_hash_blake2b_256(std::wstring_view data) -> hash_256_t {
+  return create_hash_blake2b_t<wchar_t, hash_256_t>(data);
+}
+
+auto create_hash_blake2b_384(std::string_view data) -> hash_384_t {
+  return create_hash_blake2b_t<char, hash_384_t>(data);
+}
+
+auto create_hash_blake2b_384(std::wstring_view data) -> hash_384_t {
+  return create_hash_blake2b_t<wchar_t, hash_384_t>(data);
+}
+
+auto create_hash_blake2b_512(std::string_view data) -> hash_512_t {
+  return create_hash_blake2b_t<char, hash_512_t>(data);
+}
+
+auto create_hash_blake2b_512(std::wstring_view data) -> hash_512_t {
+  return create_hash_blake2b_t<wchar_t, hash_512_t>(data);
+}
+
+auto create_hash_sha256(std::string_view data) -> hash_256_t {
+  return create_hash_sha256_t<char>(data);
+}
+
+auto create_hash_sha256(std::wstring_view data) -> hash_256_t {
+  return create_hash_sha256_t<wchar_t>(data);
+}
+
+auto create_hash_sha512(std::string_view data) -> hash_512_t {
+  return create_hash_sha512_t<char>(data);
+}
+
+auto create_hash_sha512(std::wstring_view data) -> hash_512_t {
+  return create_hash_sha512_t<wchar_t>(data);
+}
+} // namespace repertory::utils::encryption
+
+#endif // defined(PROJECT_ENABLE_LIBSODIUM)
diff --git a/support/test/src/utils/common_test.cpp b/support/test/src/utils/common_test.cpp
index d1ed808a..0d1d822d 100644
--- a/support/test/src/utils/common_test.cpp
+++ b/support/test/src/utils/common_test.cpp
@@ -20,10 +20,12 @@
   SOFTWARE.
 */
 #include "gtest/gtest.h"
-#include <utils/collection.hpp>
 
 #include "utils/common.hpp"
 
+#include "utils/collection.hpp"
+#include "utils/string.hpp"
+
 namespace repertory {
 TEST(utils_common, calculate_read_size) {
   auto read_size = utils::calculate_read_size(0U, 0U, 0U);
@@ -240,4 +242,72 @@ TEST(utils_common, generate_random_between_throws_error_on_invalid_range) {
       },
       std::range_error);
 }
+
+#if defined(PROJECT_ENABLE_LIBSODIUM)
+TEST(utils_common, generate_random_string) {
+  static constexpr const auto max_iterations{10000L};
+
+  const auto test_string = [](auto str) {
+    static std::vector<decltype(str)> list{};
+
+    EXPECT_FALSE(utils::collection::includes(list, str));
+    list.push_back(str);
+
+    EXPECT_EQ(16U, str.size());
+    for (auto &&ch : str) {
+      auto ch_int = static_cast<std::uint32_t>(ch);
+      EXPECT_GE(ch_int, 48U);
+      EXPECT_LE(ch_int, 73U + 48U);
+    }
+  };
+
+  for (std::size_t idx = 0U; idx < max_iterations; ++idx) {
+    test_string(utils::generate_random_string(16U));
+    test_string(utils::generate_random_wstring(16U));
+  }
+}
+
+TEST(utils_common, generate_random_string_for_zero_length) {
+  EXPECT_TRUE(utils::generate_random_string(0U).empty());
+  EXPECT_TRUE(utils::generate_random_wstring(0U).empty());
+}
+#endif // defined(PROJECT_ENABLE_LIBSODIUM)
+
+TEST(utils_common, get_environment_variable) {
+  static constexpr const std::string path_env{"PATH"};
+  std::string path;
+
+#if defined(_WIN32)
+  path.resize(MAX_PATH + 1U);
+  auto size = ::GetEnvironmentVariableA(path_env.c_str(), path.data(), 0U);
+
+  path.resize(size);
+  ::GetEnvironmentVariableA(path_env.c_str(), path.data(),
+                            static_cast<DWORD>(path.size()));
+#else  // !defined(_WIN32)
+  path = std::getenv(path_env.c_str());
+#endif // defined(_WIN32)
+
+  EXPECT_STREQ(path.c_str(), utils::get_environment_variable(path_env).c_str());
+  EXPECT_STREQ(
+      utils::string::from_utf8(path).c_str(),
+      utils::get_environment_variable(utils::string::from_utf8(path_env))
+          .c_str());
+}
+
+#if defined(PROJECT_ENABLE_BOOST)
+TEST(utils_common, get_next_available_port) {
+  std::uint16_t available_port{};
+  for (std::uint16_t port = 1U; port < 65535; ++port) {
+    EXPECT_TRUE(utils::get_next_available_port(port, available_port));
+    EXPECT_GE(available_port, port);
+  }
+}
+
+TEST(utils_common, get_next_available_port_fails_if_starting_point_is_zero) {
+  std::uint16_t available_port{};
+  EXPECT_FALSE(utils::get_next_available_port(0U, available_port));
+  EXPECT_EQ(0U, available_port);
+}
+#endif // defined(PROJECT_ENABLE_BOOST)
 } // namespace repertory
diff --git a/support/test/src/utils/encryption_test.cpp b/support/test/src/utils/encryption_test.cpp
index 6e04a841..73c1dec7 100644
--- a/support/test/src/utils/encryption_test.cpp
+++ b/support/test/src/utils/encryption_test.cpp
@@ -19,7 +19,7 @@
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
 */
-#if defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
+#if defined(PROJECT_ENABLE_LIBSODIUM)
 
 #include "gtest/gtest.h"
 
@@ -27,8 +27,117 @@
 #include "utils/encryption.hpp"
 
 namespace repertory {
+static const std::string token{"moose"};
+static const std::wstring token_w{L"moose"};
+
+TEST(utils_encryption, generate_key) {
+  auto key1 =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
+  EXPECT_STREQ(
+      "182072537ada59e4d6b18034a80302ebae935f66adbdf0f271d3d36309c2d481",
+      utils::collection::to_hex_string(key1).c_str());
+
+  auto key2 =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>("moose");
+  auto key3 =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>("moose");
+  EXPECT_EQ(key2, key3);
+
+  auto key4 =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>("moose2");
+  EXPECT_NE(key2, key4);
+
+  auto key1_w =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token_w);
+  EXPECT_NE(key1, key1_w);
+  EXPECT_STREQ(
+      L"590ac70125bec4501172937f6a2cbdeb22a87b5e40d5595eccd06b2b20548d8f",
+      utils::collection::to_hex_wstring(key1_w).c_str());
+
+  auto key2_w =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(L"moose");
+  auto key3_w =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(L"moose");
+  EXPECT_EQ(key2_w, key3_w);
+  EXPECT_NE(key2_w, key2);
+  EXPECT_NE(key3_w, key3);
+
+  auto key4_w =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(L"moose2");
+  EXPECT_NE(key2_w, key4_w);
+  EXPECT_NE(key4_w, key4);
+}
+
+TEST(utils_encryption, generate_key_default_hasher_is_sha256) {
+  auto key1 =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
+  auto key2 = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_sha256(
+            std::string_view(reinterpret_cast<const char *>(data), size));
+      });
+  EXPECT_EQ(key1, key2);
+
+  auto key1_w =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token_w);
+  auto key2_w = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token_w, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_sha256(std::wstring_view(
+            reinterpret_cast<const wchar_t *>(data), size / sizeof(wchar_t)));
+      });
+  EXPECT_EQ(key1_w, key2_w);
+
+  EXPECT_NE(key1_w, key1);
+  EXPECT_NE(key2_w, key2);
+}
+
+TEST(utils_encryption, generate_key_with_hasher) {
+  auto key1 = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_sha256(
+            std::string_view(reinterpret_cast<const char *>(data), size));
+      });
+  EXPECT_STREQ(
+      "182072537ada59e4d6b18034a80302ebae935f66adbdf0f271d3d36309c2d481",
+      utils::collection::to_hex_string(key1).c_str());
+
+  auto key2 = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_blake2b_256(
+            std::string_view(reinterpret_cast<const char *>(data), size));
+      });
+  EXPECT_NE(key1, key2);
+
+  EXPECT_STREQ(
+      "ab4a0b004e824962913f7c0f79582b6ec7a3b8726426ca61d1a0a28ce5049e96",
+      utils::collection::to_hex_string(key2).c_str());
+
+  auto key1_w = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token_w, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_sha256(std::wstring_view(
+            reinterpret_cast<const wchar_t *>(data), size / sizeof(wchar_t)));
+      });
+  EXPECT_STREQ(
+      L"590ac70125bec4501172937f6a2cbdeb22a87b5e40d5595eccd06b2b20548d8f",
+      utils::collection::to_hex_wstring(key1_w).c_str());
+
+  auto key2_w = utils::encryption::generate_key<utils::encryption::hash_256_t>(
+      token_w, [](auto &&data, auto &&size) -> auto {
+        return utils::encryption::create_hash_blake2b_256(std::wstring_view(
+            reinterpret_cast<const wchar_t *>(data), size / sizeof(wchar_t)));
+      });
+  EXPECT_NE(key1_w, key2_w);
+
+  EXPECT_STREQ(
+      L"0392d95ed3eee9772fbb9af68fedf829a8eb0adbe8575d9691cc9a752196766a",
+      utils::collection::to_hex_wstring(key2_w).c_str());
+
+  EXPECT_NE(key1_w, key1);
+  EXPECT_NE(key2_w, key2);
+}
+
+#if defined(PROJECT_ENABLE_BOOST)
 static const std::string buffer = "cow moose dog chicken";
-static const std::string token = "moose";
 
 static void test_encrypted_result(const data_buffer &result) {
   EXPECT_EQ(buffer.size() + utils::encryption::encryption_header_size,
@@ -39,14 +148,6 @@ static void test_encrypted_result(const data_buffer &result) {
   EXPECT_STREQ(buffer.c_str(), data.c_str());
 }
 
-TEST(utils_encryption, generate_key) {
-  const auto key = utils::encryption::generate_key(token);
-  const auto str = utils::collection::to_hex_string(key);
-  EXPECT_STREQ(
-      "182072537ada59e4d6b18034a80302ebae935f66adbdf0f271d3d36309c2d481",
-      str.c_str());
-}
-
 TEST(utils_encryption, encrypt_data_buffer) {
   data_buffer result;
   utils::encryption::encrypt_data(token, buffer, result);
@@ -54,7 +155,8 @@ TEST(utils_encryption, encrypt_data_buffer) {
 }
 
 TEST(utils_encryption, encrypt_data_buffer_with_key) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(key, buffer, result);
   test_encrypted_result(result);
@@ -69,7 +171,8 @@ TEST(utils_encryption, encrypt_data_pointer) {
 }
 
 TEST(utils_encryption, encrypt_data_pointer_with_key) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(
       key, reinterpret_cast<const unsigned char *>(buffer.data()),
@@ -78,7 +181,8 @@ TEST(utils_encryption, encrypt_data_pointer_with_key) {
 }
 
 TEST(utils_encryption, decrypt_data_pointer) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(
       key, reinterpret_cast<const unsigned char *>(buffer.data()),
@@ -93,7 +197,8 @@ TEST(utils_encryption, decrypt_data_pointer) {
 }
 
 TEST(utils_encryption, decrypt_data_buffer_with_key) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(
       key, reinterpret_cast<const unsigned char *>(buffer.data()),
@@ -107,7 +212,8 @@ TEST(utils_encryption, decrypt_data_buffer_with_key) {
 }
 
 TEST(utils_encryption, decrypt_data_pointer_with_key) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(
       key, reinterpret_cast<const unsigned char *>(buffer.data()),
@@ -122,7 +228,8 @@ TEST(utils_encryption, decrypt_data_pointer_with_key) {
 }
 
 TEST(utils_encryption, decryption_failure) {
-  const auto key = utils::encryption::generate_key(token);
+  const auto key =
+      utils::encryption::generate_key<utils::encryption::hash_256_t>(token);
   data_buffer result;
   utils::encryption::encrypt_data(
       key, reinterpret_cast<const unsigned char *>(buffer.data()),
@@ -134,6 +241,7 @@ TEST(utils_encryption, decryption_failure) {
   std::string data;
   EXPECT_FALSE(utils::encryption::decrypt_data(key, result, data));
 }
+#endif // defined(PROJECT_ENABLE_BOOST)
 } // namespace repertory
 
-#endif // defined(PROJECT_ENABLE_LIBSODIUM) && defined(PROJECT_ENABLE_BOOST)
+#endif // defined(PROJECT_ENABLE_LIBSODIUM)
diff --git a/support/test/src/utils/path_test.cpp b/support/test/src/utils/path_test.cpp
index ff1b7a99..da767ab3 100644
--- a/support/test/src/utils/path_test.cpp
+++ b/support/test/src/utils/path_test.cpp
@@ -304,4 +304,31 @@ TEST(utils_path, absolute) {
 
   // path = utils::path::absolute("~/.local");
 }
+
+TEST(utils_path, absolute_can_resolve_path_variables) {
+  std::string home{};
+
+#if defined(_WIN32)
+  home.resize(MAX_PATH + 1U);
+  auto size = ::GetEnvironmentVariableA("USERPROFILE", home.data(), 0U);
+
+  home.resize(size);
+  ::GetEnvironmentVariableA("USERPROFILE", home.data(),
+                            static_cast<DWORD>(home.size()));
+  home = utils::path::absolute(home);
+
+  auto expanded_str = utils::path::absolute("%USERPROFILE%");
+  EXPECT_STREQ(home.c_str(), expanded_str.c_str());
+
+  expanded_str = utils::path::absolute("~");
+  EXPECT_STREQ(home.c_str(), expanded_str.c_str());
+  EXPECT_STREQ((home + home).c_str(), expanded_str.c_str());
+#else  // !defined(_WIN32)
+  home = std::getenv("HOME");
+  home = utils::path::absolute(home);
+
+  auto expanded_str = utils::path::absolute("~");
+  EXPECT_STREQ(home.c_str(), expanded_str.c_str());
+#endif // defined(_WIN32)
+}
 } // namespace repertory