Implement verify. Part 1

include/jwt/algorithm.hpp

@@ -19,9 +19,14 @@ namespace jwt {
 /// The result type of the signing function
 using sign_result_t = std::pair<std::string, std::error_code>;
 /// The result type of verification function
-using verify_result_t = std::pair<int, std::error_code>;
+using verify_result_t = std::pair<bool, std::error_code>;
 /// The function pointer type of the signing function
-using sign_func_t   = sign_result_t (*) (string_view key, string_view data);
+using sign_func_t   = sign_result_t (*) (const string_view key, 
+                                         const string_view data);
+///
+using verify_func_t = verify_result_t (*) (const string_view key,
+                                           const string_view header,
+                                           const string_view jwt_sign);
 
 namespace algo {
 
@@ -156,7 +161,7 @@ struct HMACSign
 
   /*!
    */
-  static sign_result_t sign(string_view key, string_view data)
+  static sign_result_t sign(const string_view key, const string_view data)
   {
     std::string sign;
     sign.resize(EVP_MAX_MD_SIZE);
@@ -183,13 +188,7 @@ struct HMACSign
   /*!
    */
   static verify_result_t 
-  verify(string_view key, string_view head, string_view sign)
-  {
-    int compare_res = 0;
-    std::error_code ec{};
-
-    return {compare_res, ec};
-  }
+  verify(const string_view key, const string_view head, const string_view sign);
 
 };
 
@@ -202,7 +201,7 @@ struct HMACSign<algo::NONE>
 
   /*!
    */
-  static sign_result_t sign(string_view key, string_view data)
+  static sign_result_t sign(const string_view key, const string_view data)
   {
     std::string sign;
     std::error_code ec{};
@@ -214,7 +213,7 @@ struct HMACSign<algo::NONE>
   /*!
    */
   static verify_result_t
-  verify(string_view key, string_view head, string_view sign)
+  verify(const string_view key, const string_view head, const string_view sign)
   {
     int compare_res = 0;
     std::error_code ec{};
@@ -237,7 +236,7 @@ public:
 
   /*!
    */
-  static sign_result_t sign(string_view key, string_view data)
+  static sign_result_t sign(const string_view key, const string_view data)
   {
     std::error_code ec{};
 
@@ -272,145 +271,15 @@ public:
 private:
   /*!
    */
-  static EVP_PKEY* load_key(const string_view key)
-  {
-    auto bio_deletor = [](BIO* ptr) {
-      if (ptr) BIO_free(ptr);
-    };
-
-    std::unique_ptr<BIO, decltype(bio_deletor)> 
-      bio_ptr{BIO_new_mem_buf((void*)key.data(), key.length()), bio_deletor};
-
-    if (!bio_ptr) {
-      return nullptr;
-    }
-
-    EVP_PKEY* pkey = PEM_read_bio_PrivateKey(bio_ptr.get(), nullptr, nullptr, nullptr);
-    if (!pkey) {
-      return nullptr;
-    }
-
-    return pkey;
-  }
+  static EVP_PKEY* load_key(const string_view key);
 
   /*!
    */
-  static std::string evp_digest(EVP_PKEY* pkey, const string_view data, std::error_code& ec)
-  {
-    auto md_deletor = [](EVP_MD_CTX* ptr) {
-      if (ptr) EVP_MD_CTX_destroy(ptr);
-    };
-
-    std::unique_ptr<EVP_MD_CTX, decltype(md_deletor)>
-      mdctx_ptr{EVP_MD_CTX_create(), md_deletor};
-
-    if (!mdctx_ptr) {
-      //TODO: set appropriate error_code
-      return std::string{};
-    }
-
-    //Initialiaze the digest algorithm
-    if (EVP_DigestSignInit(
-          mdctx_ptr.get(), nullptr, Hasher{}(), nullptr, pkey) != 1) {
-      //TODO: set appropriate error_code
-      return std::string{};
-    }
-
-    //Update the digest with the input data
-    if (EVP_DigestSignUpdate(mdctx_ptr.get(), data.data(), data.length()) != 1) {
-      //TODO: set appropriate error_code
-      return std::string{};
-    }
-
-    unsigned long len = 0;
-
-    if (EVP_DigestSignFinal(mdctx_ptr.get(), nullptr, &len) != 1) {
-      //TODO: set appropriate error_code
-      return std::string{};
-    }
-
-    std::string sign;
-    sign.resize(len);
-
-    //Get the signature
-    if (EVP_DigestSignFinal(mdctx_ptr.get(), (unsigned char*)&sign[0], &len) != 1) {
-      //TODO: set appropriate error_code
-      return std::string{};
-    }
-
-    return sign;
-  }
-
-
-  static std::string public_key_ser(EVP_PKEY* pkey, string_view sign, std::error_code& ec)
-  {
-    // Get the EC_KEY representing a public key and 
-    // (optionaly) an associated private key
-    std::string new_sign;
-
-    static auto eckey_deletor = [](EC_KEY* ptr) {
-      if (ptr) EC_KEY_free(ptr);
-    };
-
-    static auto ecsig_deletor = [](ECDSA_SIG* ptr) {
-      if (ptr) ECDSA_SIG_free(ptr);
-    };
-
-    std::unique_ptr<EC_KEY, decltype(eckey_deletor)> 
-      ec_key{EVP_PKEY_get1_EC_KEY(pkey), eckey_deletor};
-
-    if (!ec_key) {
-      //TODO set a valid error code
-      return std::string{};
-    }
-
-    uint32_t degree = EC_GROUP_get_degree(EC_KEY_get0_group(ec_key.get()));
-
-
-    std::unique_ptr<ECDSA_SIG, decltype(ecsig_deletor)>
-      ec_sig{d2i_ECDSA_SIG(nullptr,
-                           (const unsigned char**)&sign[0],
-                           sign.length()),
-             ecsig_deletor};
-
-    if (!ec_sig) {
-      //TODO set a valid error code
-      return std::string{};
-    }
-
-    const BIGNUM* ec_sig_r = nullptr;
-    const BIGNUM* ec_sig_s = nullptr;
-
-#if 1
-    //Taken from https://github.com/nginnever/zogminer/issues/39
-    auto ECDSA_SIG_get0 = [](const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
-    { 
-      if (pr != nullptr) *pr = sig->r;
-      if (ps != nullptr) *ps = sig->s;
-    };
-      
-#endif
-
-    ECDSA_SIG_get0(ec_sig.get(), &ec_sig_r, &ec_sig_s);
-
-    auto r_len = BN_num_bytes(ec_sig_r);
-    auto s_len = BN_num_bytes(ec_sig_s);
-    auto bn_len = (degree + 7) / 8;
-
-    if ((r_len > bn_len) || (s_len > bn_len)) {
-      //TODO set a valid error code
-      return std::string{};
-    }
-
-    auto buf_len = 2 * bn_len;
-    new_sign.resize(buf_len);
-
-    BN_bn2bin(ec_sig_r, (unsigned char*)&new_sign[0] + bn_len - r_len);
-    BN_bn2bin(ec_sig_s, (unsigned char*)&new_sign[0] + buf_len - s_len);
-
-    return new_sign;
-  }
+  static std::string evp_digest(EVP_PKEY* pkey, const string_view data, std::error_code& ec);
 
+  /*!
+   */
+  static std::string public_key_ser(EVP_PKEY* pkey, string_view sign, std::error_code& ec);
 };
 
 } // END namespace jwt

include/jwt/base64.hpp

@@ -212,6 +212,36 @@ void base64_uri_encode(char* data, size_t len) noexcept
   return;
 }
 
+/*!
+ */
+std::string base64_uri_decode(const char* data, size_t len)
+{
+  std::string uri_dec;
+  uri_dec.resize(len + 4);
+
+  for (size_t i = 0; i < len; ++i) {
+    switch (data[i]) {
+    case '-':
+      uri_dec[i] = '+';
+      break;
+    case '_':
+      uri_dec[i] = '/';
+      break;
+    default:
+      uri_dec[i] = data[i];
+    };
+  }
+
+  size_t trailer = 4 - (i % 4);
+  if (trailer && trailer < 4) {
+    while (trailer--) {
+      uri_dec[i++] = '=';
+    }
+  }
+
+  return base64_decode(uri_dec.c_str(), uri_dec.length());
+}
+
 } // END namespace jwt
 
 

include/jwt/detail/meta.hpp

@@ -1,10 +1,42 @@
-#ifndef JWT_META_HPP
-#define JWT_META_HPP
+#ifndef CPP_JWT_META_HPP
+#define CPP_JWT_META_HPP
+
+#include <type_traits>
 
 namespace jwt {
 namespace detail {
+namespace meta {
 
-}
+template <typename... T>
+struct make_void
+{
+  using type = void;
+};
+
+template <typename... T>
+using void_t = typename make_void<T...>::type;
+
+
+template <typename T, typename=void>
+struct has_create_json_obj_member: std::false_type
+{
+};
+
+template <typename T>
+struct has_create_json_obj_member<T, 
+  void_t<
+    decltype(
+      std::declval<T&&>.create_json_obj(),
+      (void)0
+    )
+  >
+  >: std::true_type
+{
+};
+
+
+} // END namespace meta
+} // END namespace detail
 } // END namespace jwt
 
 #endif

include/jwt/impl/algorithm.ipp

@@ -0,0 +1,194 @@
+#ifndef CPP_JWT_ALGORITHM_IPP
+#define CPP_JWT_ALGORITHM_IPP
+
+namespace jwt {
+
+template <typename Hasher>
+verify_result_t HMACSign<Hasher>::verify(
+    const string_view key,
+    const string_view head,
+    const string_view jwt_sign)
+{
+  std::error_code ec{};
+  static auto bio_deletor = [](BIO* ptr) {
+    if (ptr) BIO_free_all(ptr);
+  };
+
+  using bio_deletor_t = decltype(bio_deletor);
+  using BIO_unique_ptr = std::unique_ptr<BIO_unique_ptr, bio_deletor_t>;
+
+  BIO_unique_ptr b64{BIO_new(BIO_f_base64())};
+  if (!b64) {
+    //TODO: set error code
+    return {false, ec};
+  }
+
+  BIO* bmem = BIO_new(BIO_s_mem());
+  if (!bmem) {
+    //TODO: set error code
+    return {false, ec};
+  }
+
+  BIO_push(b64, bmem);
+  BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+
+  unsigned char enc_buf[EVP_MAX_MD_SIZE];
+
+  unsigned char* res = HMAC(Hasher{}(),
+                            key.data(),
+                            key.length(),
+                            reinterpret_cast<const unsigned char*>(head.data()),
+                            head.length(),
+                            enc_buf,
+                            &enc_buf_len);
+
+  return {true, ec};
+}
+
+template <typename Hasher>
+sign_result_t PEMSign<Hasher>::load_key(const string_view key)
+{
+  auto bio_deletor = [](BIO* ptr) {
+    if (ptr) BIO_free(ptr);
+  };
+
+  std::unique_ptr<BIO, decltype(bio_deletor)>
+    bio_ptr{BIO_new_mem_buf((void*)key.data(), key.length()), bio_deletor};
+
+  if (!bio_ptr) {
+    return nullptr;
+  }
+
+  EVP_PKEY* pkey = PEM_read_bio_PrivateKey(bio_ptr.get(), nullptr, nullptr, nullptr);
+  if (!pkey) {
+    return nullptr;
+  }
+
+  return pkey;
+}
+
+template <typename Hasher>
+std::string PEMSign<Hasher>::evp_digest(
+    EVP_PKEY* pkey, 
+    const string_view data, 
+    std::error_code& ec)
+{
+  auto md_deletor = [](EVP_MD_CTX* ptr) {
+    if (ptr) EVP_MD_CTX_destroy(ptr);
+  };
+
+  std::unique_ptr<EVP_MD_CTX, decltype(md_deletor)>
+    mdctx_ptr{EVP_MD_CTX_create(), md_deletor};
+
+  if (!mdctx_ptr) {
+    //TODO: set appropriate error_code
+    return std::string{};
+  }
+
+  //Initialiaze the digest algorithm
+  if (EVP_DigestSignInit(
+        mdctx_ptr.get(), nullptr, Hasher{}(), nullptr, pkey) != 1) {
+    //TODO: set appropriate error_code
+    return std::string{};
+  }
+
+  //Update the digest with the input data
+  if (EVP_DigestSignUpdate(mdctx_ptr.get(), data.data(), data.length()) != 1) {
+    //TODO: set appropriate error_code
+    return std::string{};
+  }
+
+  unsigned long len = 0;
+
+  if (EVP_DigestSignFinal(mdctx_ptr.get(), nullptr, &len) != 1) {
+    //TODO: set appropriate error_code
+    return std::string{};
+  }
+
+  std::string sign;
+  sign.resize(len);
+
+  //Get the signature
+  if (EVP_DigestSignFinal(mdctx_ptr.get(), (unsigned char*)&sign[0], &len) != 1) {
+    //TODO: set appropriate error_code
+    return std::string{};
+  }
+
+  return sign;
+}
+
+template <typename Hasher>
+std::string PEMSign<Hasher>::public_key_ser(
+    EVP_PKEY* pkey, 
+    string_view sign, 
+    std::error_code& ec)
+{
+  // Get the EC_KEY representing a public key and
+  // (optionaly) an associated private key
+  std::string new_sign;
+
+  static auto eckey_deletor = [](EC_KEY* ptr) {
+    if (ptr) EC_KEY_free(ptr);
+  };
+
+  static auto ecsig_deletor = [](ECDSA_SIG* ptr) {
+    if (ptr) ECDSA_SIG_free(ptr);
+  };
+
+  std::unique_ptr<EC_KEY, decltype(eckey_deletor)>
+    ec_key{EVP_PKEY_get1_EC_KEY(pkey), eckey_deletor};
+
+  if (!ec_key) {
+    //TODO set a valid error code
+    return std::string{};
+  }
+
+  uint32_t degree = EC_GROUP_get_degree(EC_KEY_get0_group(ec_key.get()));
+
+  std::unique_ptr<ECDSA_SIG, decltype(ecsig_deletor)>
+    ec_sig{d2i_ECDSA_SIG(nullptr,
+                         (const unsigned char**)&sign[0],
+                         sign.length()),
+           ecsig_deletor};
+
+  if (!ec_sig) {
+    //TODO set a valid error code
+    return std::string{};
+  }
+
+  const BIGNUM* ec_sig_r = nullptr;
+  const BIGNUM* ec_sig_s = nullptr;
+
+#if 1
+  //Taken from https://github.com/nginnever/zogminer/issues/39
+  auto ECDSA_SIG_get0 = [](const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
+  {
+    if (pr != nullptr) *pr = sig->r;
+    if (ps != nullptr) *ps = sig->s;
+  };
+
+#endif
+
+  ECDSA_SIG_get0(ec_sig.get(), &ec_sig_r, &ec_sig_s);
+
+  auto r_len = BN_num_bytes(ec_sig_r);
+  auto s_len = BN_num_bytes(ec_sig_s);
+  auto bn_len = (degree + 7) / 8;
+
+  if ((r_len > bn_len) || (s_len > bn_len)) {
+    //TODO set a valid error code
+    return std::string{};
+  }
+
+  auto buf_len = 2 * bn_len;
+  new_sign.resize(buf_len);
+
+  BN_bn2bin(ec_sig_r, (unsigned char*)&new_sign[0] + bn_len - r_len);
+  BN_bn2bin(ec_sig_s, (unsigned char*)&new_sign[0] + buf_len - s_len);
+
+  return new_sign;
+}
+
+} // END namespace jwt
+
+#endif

include/jwt/impl/jwt.ipp

@@ -1,6 +1,8 @@
 #ifndef JWT_IPP
 #define JWT_IPP
 
+#include "jwt/detail/meta.hpp"
+
 namespace jwt {
 
 template <typename T>
@@ -23,13 +25,54 @@ std::ostream& write(std::ostream& os, const T& obj, bool pretty)
 }
 
 
-template <typename T>
+template <typename T,
+          typename = typename std::enable_if<
+            detail::meta::has_create_json_obj_member<T>{}>::type>
 std::ostream& operator<< (std::ostream& os, const T& obj)
 {
   os << obj.create_json_obj();
   return os;
 }
 
+//========================================================================
+
+void jwt_header::decode(const string_view enc_str)
+{
+  std::string json_str = base64_decode(enc_str);
+  json_t obj = json_t::parse(std::move(json_str));
+
+  //Look for the algorithm field
+  auto alg_itr = obj.find("alg");
+  assert (alg_itr != obj.end() && "Algorithm header is missing");
+  std::error_code ec;
+
+  alg_ = str_to_alg(alg_itr.value().get<std::string>());
+
+  if (alg_ != algorithm::NONE) {
+    auto itr = obj.find("typ");
+    if (itr == obj.end()) {
+      //TODO: set error code
+      return;
+    }
+    auto typ = itr.value().get<std::string>();
+    if (strcasecmp(typ.c_str(), "JWT")) {
+      //TODO: set error code
+      return;
+    }
+    typ_ = str_to_type(typ);
+  }
+
+  return;
+}
+
+
+void jwt_payload::decode(const string_view enc_str)
+{
+  std::string json_str = base64_decode(enc_str);
+  payload_ = json_t::parse(std::move(json_str));
+  return;
+}
+
 std::string jwt_signature::encode(const jwt_header& header,
                                   const jwt_payload& payload)
 {
@@ -41,9 +84,6 @@ std::string jwt_signature::encode(const jwt_header& header,
   std::string hdr_sign = header.base64_encode();
   std::string pld_sign = payload.base64_encode();
 
-  base64_uri_encode(&hdr_sign[0], hdr_sign.length());
-  base64_uri_encode(&pld_sign[0], pld_sign.length());
-
   std::string data = hdr_sign + '.' + pld_sign;
   auto res = sign_fn(key_, data);
  
@@ -55,6 +95,15 @@ std::string jwt_signature::encode(const jwt_header& header,
   return jwt_msg;
 }
 
+bool jwt_signature::verify(const jwt_header& header,
+                           const string_view hdr_pld_sign,
+                           const srting_view jwt_sign)
+{
+  //TODO: is bool the right choice ?
+
+  return true;
+}
+
 
 sign_func_t 
 jwt_signature::get_algorithm_impl(const jwt_header& hdr) const noexcept
@@ -99,6 +148,33 @@ jwt_signature::get_algorithm_impl(const jwt_header& hdr) const noexcept
   return ret;
 }
 
+//====================================================================
+
+void jwt_decode(string_view encoded_str, string_view key, bool validate)
+{
+  //TODO: implement error_code
+  size_t fpos = encoded_str.find_first_of('.');
+  assert (fpos != string_view::npos);
+
+  string_view head{&encoded_str[0], fpos};
+  std::cout << "Head: " << head << std::endl;
+  jwt_header hdr;
+  hdr.decode(head);
+
+  size_t spos = encoded_str.find_first_of('.', fpos + 1);
+  if (spos == string_view::npos) {
+    //TODO: Check for none algorithm
+  }
+  string_view body{&encoded_str[fpos + 1], spos - fpos - 1};
+  std::cout << "Body: " << body << std::endl;
+
+  //Json objects or claims get set in the decode
+  jwt_payload pld;
+  pld.decode(body);
+
+
+}
+
 } // END namespace jwt
 
 

include/jwt/jwt.hpp

@@ -10,7 +10,6 @@
 #include "jwt/base64.hpp"
 #include "jwt/algorithm.hpp"
 #include "jwt/string_view.hpp"
-#include "jwt/detail/meta.hpp"
 #include "jwt/json/json.hpp"
 
 // For convenience
@@ -59,6 +58,25 @@ string_view alg_to_str(enum algorithm alg) noexcept
   assert (0 && "Code not reached");
 }
 
+/*!
+ */
+enum algorithm str_to_alg(const string_view alg) noexcept
+{
+  if (!alg.length()) return algorithm::NONE;
+
+  if (!strcasecmp(alg.data(), "none"))  return algorithm::NONE;
+  if (!strcasecmp(alg.data(), "hs256")) return algorithm::HS256;
+  if (!strcasecmp(alg.data(), "hs384")) return algorithm::HS384;
+  if (!strcasecmp(alg.data(), "hs512")) return algorithm::HS512;
+  if (!strcasecmp(alg.data(), "rs256")) return algorithm::RS256;
+  if (!strcasecmp(alg.data(), "rs384")) return algorithm::RS384;
+  if (!strcasecmp(alg.data(), "rs512")) return algorithm::RS512;
+  if (!strcasecmp(alg.data(), "es256")) return algorithm::ES256;
+  if (!strcasecmp(alg.data(), "es384")) return algorithm::ES384;
+  if (!strcasecmp(alg.data(), "es512")) return algorithm::ES512;
+
+  assert (0 && "Code not reached");
+}
 
 /*!
  */
@@ -67,6 +85,17 @@ enum class type
   JWT = 0,
 };
 
+/*!
+ */
+enum type str_to_type(const string_view typ) noexcept
+{
+  assert (typ.length() && "Empty type string");
+
+  if (!strcasecmp(typ.data(), "jwt")) return type::JWT;
+
+  assert (0 && "Code not reached");
+}
+
 
 /*!
  */
@@ -160,18 +189,28 @@ template <typename Derived>
 struct base64_enc_dec
 {
   /*!
+   * Does URL safe base64 encoding
    */
   std::string base64_encode(bool with_pretty = false) const
   {
     std::string jstr = to_json_str(*static_cast<const Derived*>(this), with_pretty);
-    return jwt::base64_encode(jstr.c_str(), jstr.length());
+    std::string b64_str = jwt::base64_encode(jstr.c_str(), jstr.length());
+    size_t rpos = b64_str.length();
+    while(b64_str[rpos-1] == '=') rpos--;
+    // Remove the '=' characters
+    b64_str.resize(rpos);
+    // Do the URI safe encoding
+    jwt::base64_uri_encode(&b64_str[0], b64_str.length());
+
+    return b64_str;
   }
 
   /*!
+   * Does URL safe base64 decoding.
    */
-  static std::string base64_decode(const std::string& encoded_str)
+  std::string base64_decode(const string_view encoded_str)
   {
-    return jwt::base64_decode(encoded_str.c_str(), encoded_str.length());
+    return jwt::base64_uri_decode(encoded_str.data(), encoded_str.length());
   }
 
 };
@@ -235,6 +274,18 @@ public: // Exposed APIs
     return typ_;
   }
 
+  /*!
+   */
+  //TODO: error code ?
+  std::string encode(bool pprint = false)
+  {
+    return base64_encode(pprint);
+  }
+
+  /*!
+   */
+  void decode(const string_view enc_str);
+
   /*!
    */
   json_t create_json_obj() const
@@ -315,6 +366,18 @@ public: // Exposed APIs
     return (cvalue == payload_[cname]);
   }
 
+  /*!
+   */
+  std::string encode(bool pprint = false)
+  {
+    return base64_encode(pprint);
+  }
+
+  /*!
+   */
+  //TODO: what about error_code ?
+  void decode(const string_view enc_str);
+
   /*!
    */
   const json_t& create_json_obj() const
@@ -366,6 +429,12 @@ public: // Exposed APIs
   std::string encode(const jwt_header& header, 
                      const jwt_payload& payload);
 
+  /*!
+   */
+  bool verify(const jwt_header& header,
+              const string_view hdr_pld_sign,
+              const string_view jwt_sign);
+
 private: // Private implementation
   /*!
    */
@@ -381,8 +450,24 @@ private: // Data members;
  */
 class jwt_object
 {
+public: // 'tors
+  jwt_object() = default;
+
+public: // Exposed APIs
+
+private: // Data Members
+
+  /// JWT header section
+  jwt_header header_;
+  /// JWT payload section
+  jwt_payload payload_;
+
 };
 
+/*!
+ */
+void jwt_decode(string_view encoded_str, string_view key, bool validate=true);
+
 
 } // END namespace jwt
 

include/jwt/test/test_jwt_decode.cc

@@ -0,0 +1,27 @@
+#include <iostream>
+#include "jwt/jwt.hpp"
+
+void basic_decode_test()
+{
+  // Create header
+  jwt::jwt_header hdr;
+  hdr = jwt::jwt_header{jwt::algorithm::HS256};
+
+  // Create payload
+  jwt::jwt_payload jp;
+  jp.add_claim("sub", "1234567890");
+  jp.add_claim("name", "John Doe");
+  jp.add_claim("admin", true);
+
+  jwt::jwt_signature sgn{"secret"};
+  auto res = sgn.encode(hdr, jp);
+  std::cout << res << std::endl;
+
+  std::cout << "DECODE: \n";
+  jwt::jwt_decode(res, "secret");
+}
+
+int main() {
+  basic_decode_test();
+  return 0;
+}

include/jwt/test/test_jwt_header.cc

@@ -10,7 +10,7 @@ void test_basic_header()
 
   std::string enc_str = hdr.base64_encode();
   std::cout << "Base64: " << enc_str << std::endl;
-  std::cout << "Decoded: " << jwt::jwt_header::base64_decode(enc_str) << std::endl;
+  std::cout << "Decoded: " << hdr.base64_decode(enc_str) << std::endl;
 }
 
 int main() {