WindowsXP-SP1/termsrv/common/tssec/genrand.c
2020-09-30 16:53:49 +02:00

148 lines
2.1 KiB
C

/*++
Copyright (c) 1994-1998 Microsoft Corporation
Module Name:
tssec.c
Abstract:
Contains code that generates random keys.
Author:
Madan Appiah (madana) 1-Jan-1998
Modified by Nadim Abdo 31-Aug-2001 to use system RNG
Environment:
User Mode - Win32
Revision History:
--*/
#include <seccom.h>
#include <stdlib.h>
#include <rng.h>
#ifndef OS_WINCE
#include <randlib.h>
#endif
VOID
TSRNG_Initialize(
)
{
#ifndef OS_WINCE
InitializeRNG(NULL);
#else
TSInitializeRNG();
#endif
}
VOID
TSRNG_Shutdown(
)
{
#ifndef OS_WINCE
ShutdownRNG(NULL);
#endif
}
//
// function definitions
//
BOOL
TSRNG_GenerateRandomBits(
LPBYTE pbRandomBits,
DWORD cbLen
)
/*++
Routine Description:
This function returns random bits
Arguments:
pbRandomBits - pointer to a buffer where a random key is returned.
cbLen - length of the random key required.
Return Value:
TRUE - if a random key is generated successfully.
FALSE - otherwise.
--*/
{
#ifndef OS_WINCE
BOOL fRet;
fRet = NewGenRandom(NULL, NULL, pbRandomBits, cbLen);
return fRet;
#else
GenerateRandomBits(pbRandomBits, cbLen);
return( TRUE );
#endif
}
// Legacy RNG's
VOID
InitRandomGenerator(
VOID
)
{
//
// initialize the random generator first.
//
TSInitializeRNG();
}
//
// function definitions
//
BOOL
GenerateRandomKey(
LPBYTE pbRandomKey,
DWORD dwRandomKeyLen
)
/*++
Routine Description:
This function makes and return the microsoft terminal server certificate
blob of data.
Arguments:
pbRandomKey - pointer to a buffer where a random key is returned.
dwRandomKeyLen - length of the random key required.
Return Value:
TRUE - if a random key is generated successfully.
FALSE - otherwise.
--*/
{
//
// generate random bits now.
//
legacyGenerateRandomBits( pbRandomKey, dwRandomKeyLen );
return( TRUE );
}