Handle building Botan with almost all public key code disabled (though only

with the aid of macro hackery, at the moment).

Change DH feature macro to BOTAN_HAS_DIFFIE_HELLMAN
Change NR feature macro to BOTAN_HAS_NYBERG_RUEPPEL

9 files changed, 102 insertions, 53 deletions

diff --git a/checks/pk.cpp b/checks/pk.cpp
index 550135bb3..57eb12936 100644
--- a/checks/pk.cpp
+++ b/checks/pk.cpp
@@ -15,11 +15,11 @@
   #include <botan/dsa.h>
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
   #include <botan/dh.h>
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
   #include <botan/nr.h>
 #endif
 
@@ -43,12 +43,16 @@ using namespace Botan;
 #include "common.h"
 #include "validate.h"
 
-static BigInt to_bigint(const std::string& h)
+namespace {
+
+BigInt to_bigint(const std::string& h)
    {
    return BigInt::decode(reinterpret_cast<const byte*>(h.data()),
                          h.length(), BigInt::Hexadecimal);
    }
 
+}
+
 #define DEBUG 0
 
 namespace {
@@ -163,7 +167,6 @@ u32bit validate_rsa_enc_pkcs8(const std::string& algo,
    if(str.size() != 4 && str.size() != 5)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool failure = false;
 
 #if defined(BOTAN_HAS_RSA)
    std::string pass;
@@ -187,10 +190,12 @@ u32bit validate_rsa_enc_pkcs8(const std::string& algo,
    PK_Encryptor* e = get_pk_encryptor(*rsapub, eme);
    PK_Decryptor* d = get_pk_decryptor(*rsapriv, eme);
 
+   bool failure = false;
    validate_encryption(e, d, algo, str[1], str[2], str[3], failure);
+   return (failure ? 1 : 0);
 #endif
 
-   return (failure ? 1 : 0);
+   return 2;
    }
 
 u32bit validate_rsa_enc(const std::string& algo,
@@ -200,7 +205,6 @@ u32bit validate_rsa_enc(const std::string& algo,
    if(str.size() != 6)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool failure = false;
 
 #if defined(BOTAN_HAS_RSA)
    RSA_PrivateKey privkey(rng,
@@ -214,10 +218,12 @@ u32bit validate_rsa_enc(const std::string& algo,
    PK_Encryptor* e = get_pk_encryptor(pubkey, eme);
    PK_Decryptor* d = get_pk_decryptor(privkey, eme);
 
+   bool failure = false;
    validate_encryption(e, d, algo, str[3], str[4], str[5], failure);
+   return (failure ? 1 : 0);
 #endif
 
-   return (failure ? 1 : 0);
+   return 2;
    }
 
 u32bit validate_elg_enc(const std::string& algo,
@@ -227,7 +233,6 @@ u32bit validate_elg_enc(const std::string& algo,
    if(str.size() != 6 && str.size() != 7)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool failure = false;
 
 #if defined(BOTAN_HAS_ELGAMAL)
    DL_Group domain(to_bigint(str[0]), to_bigint(str[1]));
@@ -238,6 +243,7 @@ u32bit validate_elg_enc(const std::string& algo,
 
    PK_Decryptor* d = get_pk_decryptor(privkey, eme);
 
+   bool failure = false;
    if(str.size() == 7)
       {
       PK_Encryptor* e = get_pk_encryptor(pubkey, eme);
@@ -246,9 +252,10 @@ u32bit validate_elg_enc(const std::string& algo,
    else
       validate_decryption(d, algo, decode_hex(str[5]),
                           decode_hex(str[4]), failure);
+   return (failure ? 1 : 0);
 #endif
 
-   return (failure ? 1 : 0);
+   return 2;
    }
 
 u32bit validate_rsa_sig(const std::string& algo,
@@ -258,7 +265,6 @@ u32bit validate_rsa_sig(const std::string& algo,
    if(str.size() != 6)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool failure = false;
 
 #if defined(BOTAN_HAS_RSA)
    RSA_PrivateKey privkey(rng,
@@ -271,10 +277,12 @@ u32bit validate_rsa_sig(const std::string& algo,
 
    PK_Verifier* v = get_pk_verifier(pubkey, emsa);
    PK_Signer* s = get_pk_signer(privkey, emsa);
+   bool failure = false;
    validate_signature(v, s, algo, str[3], str[4], str[5], failure);
+   return (failure ? 1 : 0);
 #endif
 
-   return (failure ? 1 : 0);
+   return 2;
    }
 
 u32bit validate_rsa_ver(const std::string& algo,
@@ -283,8 +291,6 @@ u32bit validate_rsa_ver(const std::string& algo,
    if(str.size() != 5) /* is actually 4, parse() adds an extra empty one */
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool passed = true;
-
 #if defined(BOTAN_HAS_RSA)
    RSA_PublicKey key(to_bigint(str[1]), to_bigint(str[0]));
 
@@ -295,10 +301,12 @@ u32bit validate_rsa_ver(const std::string& algo,
    SecureVector<byte> msg = decode_hex(str[2]);
    SecureVector<byte> sig = decode_hex(str[3]);
 
+   bool passed = true;
    passed = v->verify_message(msg, msg.size(), sig, sig.size());
+   return (passed ? 0 : 1);
 #endif
 
-   return (passed ? 0 : 1);
+   return 2;
    }
 
 u32bit validate_rsa_ver_x509(const std::string& algo,
@@ -307,8 +315,6 @@ u32bit validate_rsa_ver_x509(const std::string& algo,
    if(str.size() != 5) /* is actually 3, parse() adds extra empty ones */
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool passed = true;
-
 #if defined(BOTAN_HAS_RSA)
    DataSource_Memory keysource(reinterpret_cast<const byte*>(str[0].c_str()),
                                str[0].length());
@@ -327,10 +333,12 @@ u32bit validate_rsa_ver_x509(const std::string& algo,
    SecureVector<byte> msg = decode_hex(str[1]);
    SecureVector<byte> sig = decode_hex(str[2]);
 
-   passed = v->verify_message(msg, msg.size(), sig, sig.size());
+   bool passed = v->verify_message(msg, msg.size(), sig, sig.size());
+   return (passed ? 0 : 1);
+
 #endif
 
-   return (passed ? 0 : 1);
+   return 2;
    }
 
 u32bit validate_rw_ver(const std::string& algo,
@@ -339,7 +347,7 @@ u32bit validate_rw_ver(const std::string& algo,
    if(str.size() != 5)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool passed = true;
+
 
 #if defined(BOTAN_HAS_RW)
    RW_PublicKey key(to_bigint(str[1]), to_bigint(str[0]));
@@ -351,10 +359,12 @@ u32bit validate_rw_ver(const std::string& algo,
    SecureVector<byte> msg = decode_hex(str[2]);
    SecureVector<byte> sig = decode_hex(str[3]);
 
+   bool passed = true;
    passed = v->verify_message(msg, msg.size(), sig, sig.size());
+   return (passed ? 0 : 1);
 #endif
 
-   return (passed ? 0 : 1);
+   return 2;
    }
 
 u32bit validate_rw_sig(const std::string& algo,
@@ -364,7 +374,6 @@ u32bit validate_rw_sig(const std::string& algo,
    if(str.size() != 6)
       throw Exception("Invalid input from pk_valid.dat");
 
-   bool failure = false;
 
 #if defined(BOTAN_HAS_RW)
    RW_PrivateKey privkey(rng, to_bigint(str[1]), to_bigint(str[2]),
@@ -376,10 +385,12 @@ u32bit validate_rw_sig(const std::string& algo,
    PK_Verifier* v = get_pk_verifier(pubkey, emsa);
    PK_Signer* s = get_pk_signer(privkey, emsa);
 
+   bool failure = false;
    validate_signature(v, s, algo, str[3], str[4], str[5], failure);
+   return (failure ? 1 : 0);
 #endif
 
-   return (failure ? 1 : 0);
+   return 2;
    }
 
 u32bit validate_dsa_sig(const std::string& algo,
@@ -461,7 +472,7 @@ u32bit validate_nr_sig(const std::string& algo,
       throw Exception("Invalid input from pk_valid.dat");
 
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
 
    DL_Group domain(to_bigint(str[0]), to_bigint(str[1]), to_bigint(str[2]));
    NR_PrivateKey privkey(rng, domain, to_bigint(str[4]));
@@ -488,7 +499,7 @@ u32bit validate_dh(const std::string& algo,
       throw Exception("Invalid input from pk_valid.dat");
 
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
    DL_Group domain(to_bigint(str[0]), to_bigint(str[1]));
 
    DH_PrivateKey mykey(rng, domain, to_bigint(str[2]));
@@ -544,7 +555,7 @@ u32bit validate_dlies(const std::string& algo,
    validate_encryption(e, d, algo, str[4], empty, str[5], failure);
    return (failure ? 1 : 0);
 #else
-   return 0;
+   return 2;
 #endif
    }
 
@@ -595,13 +606,13 @@ void do_pk_keygen_tests(RandomNumberGenerator& rng)
    DL_SIG_KEY(DSA_PrivateKey, "dsa/jce/1024");
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
    DL_KEY(DH_PrivateKey, "modp/ietf/768");
    DL_KEY(DH_PrivateKey, "modp/ietf/2048");
    DL_KEY(DH_PrivateKey, "dsa/jce/1024");
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
    DL_SIG_KEY(NR_PrivateKey, "dsa/jce/512");
    DL_SIG_KEY(NR_PrivateKey, "dsa/jce/768");
    DL_SIG_KEY(NR_PrivateKey, "dsa/jce/1024");
diff --git a/checks/pk_bench.cpp b/checks/pk_bench.cpp
index ac8f5649f..ac470b88a 100644
--- a/checks/pk_bench.cpp
+++ b/checks/pk_bench.cpp
@@ -12,11 +12,11 @@
   #include <botan/dsa.h>
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
   #include <botan/dh.h>
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
   #include <botan/nr.h>
 #endif
 
@@ -160,7 +160,8 @@ void benchmark_rsa(RandomNumberGenerator& rng,
 
 #if 0
          // for profiling
-         PKCS8_PrivateKey* pkcs8_key = PKCS8::load_key("rsa/" + to_string(keylen) + ".pem", rng);
+         PKCS8_PrivateKey* pkcs8_key =
+            PKCS8::load_key("rsa/" + to_string(keylen) + ".pem", rng);
          RSA_PrivateKey* key_ptr = dynamic_cast<RSA_PrivateKey*>(pkcs8_key);
 
          RSA_PrivateKey key = *key_ptr;
@@ -179,7 +180,8 @@ void benchmark_rsa(RandomNumberGenerator& rng,
 
             std::auto_ptr<PK_Signer> sig(get_pk_signer(key, sig_padding));
             std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, sig_padding));
-            benchmark_sig_ver(*ver, *sig, verify_timer, sig_timer, rng, 10000, seconds);
+            benchmark_sig_ver(*ver, *sig, verify_timer,
+                              sig_timer, rng, 10000, seconds);
             }
 
          const std::string rsa_keylen = "RSA " + to_string(keylen);
@@ -247,7 +249,7 @@ void benchmark_dsa_nr(RandomNumberGenerator& rng,
                       double seconds,
                       Benchmark_Report& report)
    {
-#if defined(BOTAN_HAS_NR) || defined(BOTAN_HAS_DSA)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL) || defined(BOTAN_HAS_DSA)
    const char* domains[] = { "dsa/jce/512",
                              "dsa/jce/768",
                              "dsa/jce/1024",
@@ -280,7 +282,8 @@ void benchmark_dsa_nr(RandomNumberGenerator& rng,
          std::auto_ptr<PK_Signer> sig(get_pk_signer(key, padding));
          std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
 
-         benchmark_sig_ver(*ver, *sig, verify_timer, sig_timer, rng, 1000, seconds);
+         benchmark_sig_ver(*ver, *sig, verify_timer,
+                           sig_timer, rng, 1000, seconds);
          }
 
       const std::string nm = algo_name + "-" + to_string(pbits);
@@ -295,7 +298,7 @@ void benchmark_dh(RandomNumberGenerator& rng,
                   double seconds,
                   Benchmark_Report& report)
    {
-#ifdef BOTAN_HAS_DH
+#ifdef BOTAN_HAS_DIFFIE_HELLMAN
 
    const char* domains[] = { "modp/ietf/768",
                              "modp/ietf/1024",
@@ -457,7 +460,7 @@ void bench_pk(RandomNumberGenerator& rng,
    if(algo == "All" || algo == "ELG" || algo == "ElGamal")
       benchmark_elg(rng, seconds, report);
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
    if(algo == "All" || algo == "NR")
       benchmark_dsa_nr<NR_PrivateKey>(rng, seconds, report);
 #endif
diff --git a/src/build-data/cc/gcc b/src/build-data/cc/gcc
index 4194892a7..bb0849c51 100644
--- a/src/build-data/cc/gcc
+++ b/src/build-data/cc/gcc
@@ -9,8 +9,8 @@ add_lib_dir_option "-L"
 add_lib_option "-l"
 
 lang_flags "-D_REENTRANT -ansi -Wno-long-long"
-warning_flags "-W -Wall"
-#warning_flags "-Werror -Wextra -Wall -Wstrict-aliasing -Wstrict-overflow=5 -Wcast-align -Wmissing-declarations"
+#warning_flags "-W -Wall"
+warning_flags "-Werror -Wextra -Wall -Wstrict-aliasing -Wstrict-overflow=5 -Wcast-align -Wmissing-declarations"
 
 lib_opt_flags "-O2 -finline-functions"
 check_opt_flags "-O2"
diff --git a/src/core/libstate/eng_def.h b/src/core/libstate/eng_def.h
index 7d7ecce58..66cb774d2 100644
--- a/src/core/libstate/eng_def.h
+++ b/src/core/libstate/eng_def.h
@@ -16,16 +16,27 @@ namespace Botan {
 class BOTAN_DLL Default_Engine : public Engine
    {
    public:
+#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
       IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
                           const BigInt&, const BigInt&, const BigInt&,
                           const BigInt&, const BigInt&) const;
+#endif
+
+#if defined(BOTAN_HAS_DSA)
       DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
                             const BigInt&) const;
+#endif
+
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
       NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&) const;
+#endif
+
+#if defined(BOTAN_HAS_ELGAMAL)
       ELG_Operation* elg_op(const DL_Group&, const BigInt&,
                             const BigInt&) const;
+#endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
       DH_Operation* dh_op(const DL_Group&, const BigInt&) const;
 #endif
 
diff --git a/src/core/libstate/engine.cpp b/src/core/libstate/engine.cpp
index 13ab63193..4f58fb040 100644
--- a/src/core/libstate/engine.cpp
+++ b/src/core/libstate/engine.cpp
@@ -13,6 +13,7 @@ namespace Botan {
 
 namespace Engine_Core {
 
+#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
 /*************************************************
 * Acquire an IF op                               *
 *************************************************/
@@ -31,7 +32,9 @@ IF_Operation* if_op(const BigInt& e, const BigInt& n, const BigInt& d,
 
    throw Lookup_Error("Engine_Core::if_op: Unable to find a working engine");
    }
+#endif
 
+#if defined(BOTAN_HAS_DSA)
 /*************************************************
 * Acquire a DSA op                               *
 *************************************************/
@@ -48,7 +51,9 @@ DSA_Operation* dsa_op(const DL_Group& group, const BigInt& y, const BigInt& x)
 
    throw Lookup_Error("Engine_Core::dsa_op: Unable to find a working engine");
    }
+#endif
 
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
 /*************************************************
 * Acquire a NR op                                *
 *************************************************/
@@ -65,7 +70,9 @@ NR_Operation* nr_op(const DL_Group& group, const BigInt& y, const BigInt& x)
 
    throw Lookup_Error("Engine_Core::nr_op: Unable to find a working engine");
    }
+#endif
 
+#if defined(BOTAN_HAS_ELGAMAL)
 /*************************************************
 * Acquire an ElGamal op                          *
 *************************************************/
@@ -82,8 +89,9 @@ ELG_Operation* elg_op(const DL_Group& group, const BigInt& y, const BigInt& x)
 
    throw Lookup_Error("Engine_Core::elg_op: Unable to find a working engine");
    }
+#endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
 /*************************************************
 * Acquire a DH op                                *
 *************************************************/
diff --git a/src/core/libstate/engine.h b/src/core/libstate/engine.h
index 72f5b28ca..bf33fa24d 100644
--- a/src/core/libstate/engine.h
+++ b/src/core/libstate/engine.h
@@ -20,11 +20,11 @@
   #include <botan/dsa_op.h>
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
   #include <botan/dh_op.h>
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
   #include <botan/nr_op.h>
 #endif
 
@@ -32,7 +32,6 @@
   #include <botan/elg_op.h>
 #endif
 
-
 #if defined(BOTAN_HAS_ECDSA)
   #include <botan/ecc_op.h>
 #endif
@@ -57,24 +56,32 @@ class BOTAN_DLL Engine
             virtual ~Algorithm_Cache() {}
          };
 
+#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
       virtual IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
                                   const BigInt&, const BigInt&, const BigInt&,
                                   const BigInt&, const BigInt&) const
          { return 0; }
+#endif
 
+#if defined(BOTAN_HAS_DSA)
       virtual DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
                                     const BigInt&) const
          { return 0; }
+#endif
 
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
       virtual NR_Operation* nr_op(const DL_Group&, const BigInt&,
                                   const BigInt&) const
          { return 0; }
+#endif
 
+#if defined(BOTAN_HAS_ELGAMAL)
       virtual ELG_Operation* elg_op(const DL_Group&, const BigInt&,
                                     const BigInt&) const
          { return 0; }
+#endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
       virtual DH_Operation* dh_op(const DL_Group&, const BigInt&) const
          { return 0; }
 #endif
@@ -154,16 +161,25 @@ namespace Engine_Core {
 *************************************************/
 Modular_Exponentiator* mod_exp(const BigInt&, Power_Mod::Usage_Hints);
 
+#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
 IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
                     const BigInt&, const BigInt&, const BigInt&,
                     const BigInt&, const BigInt&);
+#endif
 
+#if defined(BOTAN_HAS_DSA)
 DSA_Operation* dsa_op(const DL_Group&, const BigInt&, const BigInt&);
+#endif
+
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
 NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&);
+#endif
 
+#if defined(BOTAN_HAS_ELGAMAL)
 ELG_Operation* elg_op(const DL_Group&, const BigInt&, const BigInt&);
+#endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
 DH_Operation* dh_op(const DL_Group&, const BigInt&);
 #endif
 
diff --git a/src/pubkey/dh/info.txt b/src/pubkey/dh/info.txt
index a54188c57..7c38b027e 100644
--- a/src/pubkey/dh/info.txt
+++ b/src/pubkey/dh/info.txt
@@ -1,6 +1,6 @@
-realname "DH"
+realname "Diffie-Hellman Key Agreement"
 
-define DH
+define DIFFIE_HELLMAN
 
 load_on auto
 
diff --git a/src/pubkey/nr/info.txt b/src/pubkey/nr/info.txt
index b574af0e7..6434d4385 100644
--- a/src/pubkey/nr/info.txt
+++ b/src/pubkey/nr/info.txt
@@ -1,6 +1,6 @@
 realname "Nyberg-Rueppel"
 
-define NR
+define NYBERG_RUEPPEL
 
 load_on auto
 
diff --git a/src/pubkey/pubkey/pk_algs.cpp b/src/pubkey/pubkey/pk_algs.cpp
index 3c1b81ba9..c1fc569a0 100644
--- a/src/pubkey/pubkey/pk_algs.cpp
+++ b/src/pubkey/pubkey/pk_algs.cpp
@@ -13,7 +13,7 @@
   #include <botan/dsa.h>
 #endif
 
-#ifdef BOTAN_HAS_DH
+#ifdef BOTAN_HAS_DIFFIE_HELLMAN
   #include <botan/dh.h>
 #endif
 
@@ -21,7 +21,7 @@
   #include <botan/ec.h>
 #endif
 
-#ifdef BOTAN_HAS_NR
+#ifdef BOTAN_HAS_NYBERG_RUEPPEL
   #include <botan/nr.h>
 #endif
 
@@ -48,11 +48,11 @@ Public_Key* get_public_key(const std::string& alg_name)
    if(alg_name == "DSA") return new DSA_PublicKey;
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
    if(alg_name == "DH")  return new DH_PublicKey;
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
    if(alg_name == "NR")  return new NR_PublicKey;
 #endif
 
@@ -84,11 +84,11 @@ Private_Key* get_private_key(const std::string& alg_name)
    if(alg_name == "DSA") return new DSA_PrivateKey;
 #endif
 
-#if defined(BOTAN_HAS_DH)
+#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
    if(alg_name == "DH")  return new DH_PrivateKey;
 #endif
 
-#if defined(BOTAN_HAS_NR)
+#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
    if(alg_name == "NR")  return new NR_PrivateKey;
 #endif