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split out crypto++-specific verify code; prefer to create our own RageFileBasic

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Glenn Maynard
2005-05-20 01:19:47 +00:00
parent 98003393df
commit f098157a4f
2 changed files with 41 additions and 17 deletions
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stepmania/src/CryptManager.cpp
+38 -17
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@@ -14,11 +14,12 @@ static const CString PRIVATE_KEY_PATH = "Data/private.rsa";
static const CString PUBLIC_KEY_PATH = "Data/public.rsa";
static const CString ALTERNATE_PUBLIC_KEY_DIR = "Data/keys/";
#if !defined(HAVE_CRYPTOPP)
#if !defined(XHAVE_CRYPTOPP)
CryptManager::CryptManager() { }
CryptManager::~CryptManager() { }
void CryptManager::GenerateRSAKey( unsigned int keyLength, CString privFilename, CString pubFilename, CString seed ) { }
void CryptManager::SignFileToFile( CString sPath, CString sSignatureFile ) { }
bool CryptManager::VerifyFile( RageFileBasic &file, CString sSignature, CString sPublicKey, CString &sError ) { return true; }
bool CryptManager::VerifyFileWithFile( CString sPath, CString sSignatureFile )
{
return true;
@@ -192,6 +193,25 @@ bool CryptManager::VerifyFileWithFile( CString sPath, CString sSignatureFile, CS
if( !GetFileContents(sSignatureFile, sSignature) )
return false;
RageFile file;
if( !file.Open(sPath) )
{
LOG->Warn( "VerifyFileWithFile: open(%s) failed: %s", sPath.c_str(), file.GetError().c_str() );
return false;
}
CString sError;
if( !VerifyFile(file, sSignature, sPublicKey, sError) )
{
LOG->Warn( "VerifyFile failed: %s", sPath.c_str(), sError.c_str() );
return false;
}
return true;
}
bool CryptManager::VerifyFile( RageFileBasic &file, CString sSignature, CString sPublicKey, CString &sError )
{
try {
StringSource pubFile( sPublicKey, true );
RSASSA_PKCS1v15_SHA_Verifier pub(pubFile);
@@ -201,11 +221,13 @@ bool CryptManager::VerifyFileWithFile( CString sPath, CString sSignatureFile, CS
VerifierFilter *verifierFilter = new VerifierFilter(pub);
verifierFilter->Put( (byte *) sSignature.data(), sSignature.size() );
RageFileSource f(sMessageFilename, true, verifierFilter);
/* RageFileSource will delete the file we give to it, so make a copy. */
RageFileSource f( file.Copy(), true, verifierFilter );
return verifierFilter->GetLastResult();
} catch( const CryptoPP::Exception &s ) {
LOG->Warn( "VerifyFileWithFile(%s,%s) failed: %s", sPath.c_str(), sSignatureFile.c_str(), s.what() );
sError = s.what();
return false;
}
}
@@ -221,22 +243,21 @@ bool CryptManager::Verify( CString sPath, CString sSignature )
if( !GetFileContents(sPublicKeyFile, sPublicKey) )
return false;
try {
StringSource pubFile( sPublicKey, true );
RSASSA_PKCS1v15_SHA_Verifier pub(pubFile);
if( sSignature.size() != pub.SignatureLength() )
return false;
VerifierFilter *verifierFilter = new VerifierFilter(pub);
verifierFilter->Put( (byte *) sSignature.data(), sSignature.size() );
RageFileSource f(sMessageFilename, true, verifierFilter);
return verifierFilter->GetLastResult();
} catch( const CryptoPP::Exception &s ) {
LOG->Warn( "Verify(%s,sig) failed: %s", sPath.c_str(), s.what() );
RageFile file;
if( !file.Open(sPath) )
{
LOG->Warn( "Verify: open(%s) failed: %s", sPath.c_str(), file.GetError().c_str() );
return false;
}
CString sError;
if( !VerifyFile(file, sSignature, sPublicKey, sError) )
{
LOG->Warn( "Verify failed: %s", sPath.c_str(), sError.c_str() );
return false;
}
return true;
}
#endif