Add StaticAlgorithmName to select RNGs for object registry (Issue 386)

drbg.h

@@ -11,6 +11,8 @@
 
 #include "cryptlib.h"
 #include "secblock.h"
+#include "hmac.h"
+#include "sha.h"
 
 NAMESPACE_BEGIN(CryptoPP)
 
@@ -170,6 +172,8 @@ public:
     CRYPTOPP_CONSTANT(MAXIMUM_BYTES_PER_REQUEST=65536)
     CRYPTOPP_CONSTANT(MAXIMUM_REQUESTS_BEFORE_RESEED=INT_MAX)
 
+    static std::string StaticAlgorithmName() { return std::string("Hash_DRBG(") + HASH::StaticAlgorithmName() + std::string(")"); }
+
     //! \brief Construct a Hash DRBG
     //! \param entropy the entropy to instantiate the generator
     //! \param entropyLength the size of the entropy buffer
@@ -281,6 +285,8 @@ public:
     CRYPTOPP_CONSTANT(MAXIMUM_BYTES_PER_REQUEST=65536)
     CRYPTOPP_CONSTANT(MAXIMUM_REQUESTS_BEFORE_RESEED=INT_MAX)
 
+    static std::string StaticAlgorithmName() { return std::string("HMAC_DRBG(") + HASH::StaticAlgorithmName() + std::string(")"); }
+
     //! \brief Construct a HMAC DRBG
     //! \param entropy the entropy to instantiate the generator
     //! \param entropyLength the size of the entropy buffer
@@ -537,8 +543,8 @@ void Hash_DRBG<HASH, STRENGTH, SEEDLENGTH>::Hash_Update(const byte* input1, size
         size_t count = STDMIN(outlen, (size_t)HASH::DIGESTSIZE);
         hash.TruncatedFinal(output, count);
 
-		output += count; outlen -= count;
+        output += count; outlen -= count;
-		counter++;
+        counter++;
     }
 }
 

mersenne.h

@@ -30,6 +30,10 @@ template <unsigned int K, unsigned int M, unsigned int N, unsigned int F, unsign
 class MersenneTwister : public RandomNumberGenerator
 {
 public:
+	CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() { return "MT19937"; }
+
+	~MersenneTwister() {}
+
 	//! \brief Construct a Mersenne Twister
 	//! \param seed 32-bit seed
 	//! \details Defaults to template parameter S due to changing algorithm

osrng.cpp

@@ -20,9 +20,6 @@
 #include "rng.h"
 
 #ifdef CRYPTOPP_WIN32_AVAILABLE
-//#ifndef _WIN32_WINNT
-//#define _WIN32_WINNT 0x0400
-//#endif
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #if defined(USE_MS_CRYPTOAPI)
@@ -34,7 +31,6 @@
 # define CRYPT_MACHINE_KEYSET 0x00000020
 #endif
 #elif defined(USE_MS_CNGAPI)
-//#include <ntdef.h>
 #include <bcrypt.h>
 #ifndef BCRYPT_SUCCESS
 # define BCRYPT_SUCCESS(Status) (((NTSTATUS)(Status)) >= 0)

osrng.h

@@ -87,9 +87,12 @@ private:
 class CRYPTOPP_DLL NonblockingRng : public RandomNumberGenerator
 {
 public:
+	CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() { return "NonblockingRng"; }
+
+	~NonblockingRng();
+
 	//! \brief Construct a NonblockingRng
 	NonblockingRng();
-	~NonblockingRng();
 
 	//! \brief Generate random array of bytes
 	//! \param output the byte buffer
@@ -115,9 +118,12 @@ protected:
 class CRYPTOPP_DLL BlockingRng : public RandomNumberGenerator
 {
 public:
+	CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() { return "BlockingRng"; }
+
+	~BlockingRng();
+
 	//! \brief Construct a BlockingRng
 	BlockingRng();
-	~BlockingRng();
 
 	//! \brief Generate random array of bytes
 	//! \param output the byte buffer
@@ -143,7 +149,6 @@ protected:
 //!  by way of BlockingRng, if available.
 CRYPTOPP_DLL void CRYPTOPP_API OS_GenerateRandomBlock(bool blocking, byte *output, size_t size);
 
-
 //! \class AutoSeededRandomPool
 //! \brief Automatically Seeded Randomness Pool
 //! \details This class seeds itself using an operating system provided RNG.
@@ -151,6 +156,10 @@ CRYPTOPP_DLL void CRYPTOPP_API OS_GenerateRandomBlock(bool blocking, byte *outpu
 class CRYPTOPP_DLL AutoSeededRandomPool : public RandomPool
 {
 public:
+	CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() { return "AutoSeededRandomPool"; }
+
+	~AutoSeededRandomPool() {}
+
 	//! \brief Construct an AutoSeededRandomPool
 	//! \param blocking controls seeding with BlockingRng or NonblockingRng
 	//! \param seedSize the size of the seed, in bytes
@@ -178,6 +187,10 @@ template <class BLOCK_CIPHER>
 class AutoSeededX917RNG : public RandomNumberGenerator, public NotCopyable
 {
 public:
+	static std::string StaticAlgorithmName() { return std::string("AutoSeededX917RNG(") + BLOCK_CIPHER::StaticAlgorithmName() + std::string(")"); }
+
+	~AutoSeededX917RNG() {}
+
 	//! \brief Construct an AutoSeededX917RNG
 	//! \param blocking controls seeding with BlockingRng or NonblockingRng
 	//! \param autoSeed controls auto seeding of the generator