diff -r 2d65c2f76d7b -r 4a8fed1c0ef6 kernel/eka/euser/us_exec.cpp
--- a/kernel/eka/euser/us_exec.cpp	Tue Feb 02 01:24:03 2010 +0200
+++ b/kernel/eka/euser/us_exec.cpp	Sat Feb 20 00:10:51 2010 +0200
@@ -6358,7 +6358,14 @@
 
 EXPORT_C TUint32 Math::Random()
 /**
-Gets 32 random bits from the kernel's random pool.
+Gets 32 random bits from the kernel's random number generator.
+
+The returned random data may or may not be cryptographically secure but should be of a high quality for
+non-cryptographic purposes.
+
+This function uses a cryptographically strong random number generator to generate the random data, which can
+be slower than insecure generators. If security is not important, a faster generator may be used such as
+Math::Rand().
 
 @return The 32 random bits.
 */
@@ -6367,6 +6374,62 @@
 	return Exec::MathRandom();
 	}
 
+EXPORT_C void Math::Random(TDes8& aRandomValue)
+/**
+Fills the provided descriptor with random data up to its current length. The number of random bytes required
+should be specified by setting the length of the descriptor that is passed to this function.
+
+The returned random data may or may not be cryptographically secure but should be of a high quality for
+non-cryptographic purposes.
+
+This function uses a cryptographically strong random number generator to generate the random data, which can
+be slower than insecure generators. If security is not important, a faster generator may be used such as
+Math::Rand().
+
+@param aRandomValue on return, the descriptor is filled with the requested number of random bytes.
+*/
+	{
+	Exec::MathSecureRandom(aRandomValue);
+    }
+
+
+EXPORT_C void Math::RandomL(TDes8& aRandomValue)
+/**
+Fills the provided descriptor with random data up to its current length. The number of random bytes required
+should be specified by setting the length of the descriptor that is passed to the function.
+
+If the returned random data cannot be guaranteed to be cryptographically secure, the function will leave with
+KErrNotReady to indicate that the returned data should not be used for cryptographic purposes.
+
+The security strength of the cryptographically strong random number generator is 256 bits.
+
+@param aRandomValue  on return, the descriptor is filled with the requested number of random bytes.
+
+@leave KErrNotReady  if the returned random data cannot be guaranteed to be cryptographically secure.
+*/
+	{
+	User::LeaveIfError(Exec::MathSecureRandom(aRandomValue));
+	}
+
+EXPORT_C TUint32 Math::RandomL()
+/**
+Gets 32 random bits from the kernel's random number generator.
+
+If the returned random data could not be guaranteed to be cryptographically secure, the function will instead
+leave with KErrNotReady to indicate that data was not available.
+
+The security strength of the cryptographically strong random number generator is 256 bits.
+
+@leave KErrNotReady  if no data was returned as it could not be guaranteed to be cryptographically secure.
+
+@return The 32 random bits.
+*/
+	{
+	TBuf8<sizeof(TUint32)> randomBuffer;
+	randomBuffer.SetMax();
+	User::LeaveIfError(Exec::MathSecureRandom(randomBuffer));
+	return *(TUint32*)(randomBuffer.Ptr());
+	}
 
 
 EXPORT_C void User::IMB_Range(TAny* aStart, TAny* aEnd)