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create keypair on startup if one doesn't already exist

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This commit is contained in:
Chris Danford
2004-02-15 05:45:18 +00:00
parent 0667124940
commit 5cc79c5f2b
7 changed files with 63 additions and 23 deletions
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stepmania/src/CryptManager.cpp
+32 -17
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@@ -2,6 +2,7 @@
#include "CryptManager.h"
#include "RageUtil.h"
#include "CryptHelpers.h"
#include "RageLog.h"
// crypt headers
#include "sha.h"
@@ -9,7 +10,7 @@
#include "channels.h"
#include "rsa.h"
#include "md5.h"
#include "randpool.h"
#include "osrng.h"
#include <memory>
using namespace CryptoPP;
@@ -18,21 +19,33 @@ using namespace std;
static const CString SIGNATURE_POSPEND = ".sig.rsa";
static const CString PRIVATE_KEY_PATH = "private.rsa";
static const CString PUBLIC_KEY_PATH = "public.rsa";
static const int KEY_LENGTH = 1024;
CryptManager* CRYPTMAN = NULL; // global and accessable from anywhere in our program
void CryptManager::GenerateRSAKey(unsigned int keyLength, const char *privFilename, const char *pubFilename, const char *seed)
CryptManager::CryptManager()
{
RandomPool randPool;
randPool.Put((byte *)seed, strlen(seed));
//
// generate keys if none are available
//
if( !DoesFileExist(PRIVATE_KEY_PATH) || !DoesFileExist(PUBLIC_KEY_PATH) )
{
LOG->Warn( "Keys missing. Generating new keys" );
GenerateRSAKey( KEY_LENGTH, PRIVATE_KEY_PATH, PUBLIC_KEY_PATH, "aoksdjaksd" );
FlushDirCache();
}
}
RSAES_OAEP_SHA_Decryptor priv(randPool, keyLength);
CryptManager::~CryptManager()
{
}
void CryptManager::GenerateRSAKey(unsigned int keyLength, const char *privFilename, const char *pubFilename, const char *seed )
{
AutoSeededRandomPool rng;
RSAES_OAEP_SHA_Decryptor priv(rng, keyLength);
HexEncoder privFile(new RageFileSink(privFilename));
priv.DEREncode(privFile);
privFile.MessageEnd();
@@ -49,16 +62,17 @@ void CryptManager::SignFile( CString sPath )
CString sMessageFilename = sPath;;
CString sSignatureFilename = sPath + SIGNATURE_POSPEND;
if( !IsAFile(sMessageFilename) || !IsAFile(sPrivFilename) )
ASSERT( IsAFile(sPrivFilename) );
if( !IsAFile(sMessageFilename) )
return;
// CAREFUL: These classes can throw all kinds of exceptions. Should this
// be wrapped in a try catch?
// TODO: use RageFile here
RageFileSource privFile(sPrivFilename, true, new HexDecoder);
RSASSA_PKCS1v15_SHA_Signer priv(privFile);
RandomNumberGenerator &rng = RandomPool();
AutoSeededRandomPool rng;
RageFileSource f(sMessageFilename, true, new SignerFilter(rng, priv, new HexEncoder(new RageFileSink(sSignatureFilename))));
}
@@ -68,13 +82,14 @@ bool CryptManager::VerifyFile( CString sPath )
CString sMessageFilename = sPath;;
CString sSignatureFilename = sPath + SIGNATURE_POSPEND;
if( !IsAFile(sSignatureFilename) || !IsAFile(sPubFilename) )
ASSERT( IsAFile(sPubFilename) );
if( !IsAFile(sSignatureFilename) )
return false;
// CAREFUL: These classes can throw all kinds of exceptions. Should this
// be wrapped in a try catch?
// TODO: use RageFile here
RageFileSource pubFile(sPubFilename, true, new HexDecoder);
RSASSA_PKCS1v15_SHA_Verifier pub(pubFile);