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CryptoSpi::MRandom Class Reference

class CryptoSpi::MRandom : public CryptoSpi::MPlugin

A pseudo-random number generator (PRNG). Generates random numbers derived from entropy obtained from another source, usually a hardware random number generator or if unavailable, from a combination variety of unpredictable system variables, added to an entropy pool which is used for seeding. This might include keypresses generated by a user, hardware interrupts, etc.

Inherits from

CryptoSpi::MRandom
- CryptoSpi::MPlugin

Public Member Functions
void	GenerateRandomBytesL(TDes8 &)

Inherited Functions
	CryptoSpi::MPlugin::Close()
	CryptoSpi::MPlugin::GetCharacteristicsL(const TCharacteristics *&)
	CryptoSpi::MPlugin::GetExtendedCharacteristicsL()
	CryptoSpi::MPlugin::GetExtension(TUid)
	CryptoSpi::MPlugin::Reset()

Member Functions Documentation

GenerateRandomBytesL(TDes8 &)

void

GenerateRandomBytesL

(

TDes8 &

aDest

)

[pure virtual]

Implementations of this method should fill the passed buffer with the generated pseudo-random data up to the current length, discarding any current contents. The implementations should leave with KErrNotSecure when the generated random data is not secure enough.

leave: KErrNotSecure Random data generated is not secure enough for crytographic operations otherwise, leaves with any other system wide error code.

Parameters

TDes8 & aDest

The buffer to fill with random data