Just having a look at quality or performance of HAVEGE

Select your processor architecture (ARCH) and run:

HAVEGEND(ARCH) or HAVEGECRYPTO(ARCH): for testing qualities of the genereted sequences.

no argument : 32 Mbytes of random numbers are generated in file resbin
any argument: 8 Mbtytes are generated and analyzed online

HAVEGESPEED(ARCH) or HAVEGESPEEDINLINE(ARCH): for testing throughput

Linking an application with HAVEGE

Just link your application with HAVEGE(ARCH).o and HardClock(ARCH).s

GENERAL USAGE: int ndrand() high performance high quality random numbers for current usage.

ndrand() outperforms usual rand() and random() generators.
Using the inlined version reduces execution time of the generator by approximately one third (see the example HAVEGESPEEDINLINE).
Caution: ndrand () has been optimized for distribution quality and throughput. Internal state of data variables is not intentionally completely hidden from the outside world. ndrand() should not be used for cryptographic applications.

CRYPTOGRAPHIC USAGE: int cryptondrand() high performance high quality random numbers for cryptography.

cryptondrand() produces several megabytes of unpredictable random numbers per cycle.
Each 1 Mbyte sequence of cryptondrand() results is the exclusive-OR of the previous sequence with 32 consecutive 1 Mbyte sequences of a ndrand()-like function results.
Each of these 33 individual sequences are already high quality random number sequences.
Collection of a 1 Mbyte sequence spans over several tens of operating system interrupts.
The 31 intermediate sequences are hidden from the outside world. Hiding a single intermediate sequence is sufficient to ensure irreproducibility.

Remark: When possible you should avoid HAVEGE(ARCH).o new generation.
The number of iterations in the main loop of HAVEGE coded in file LoopBody.h has been optimized in order to get the executable for this loop body to fit in the instruction cache. The exact size of this executable depends on the exact compiler version and the exact compiler options used for its generation.

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