Developer Guide and Reference for Intel® Integrated Performance Primitives Cryptography
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TRNGenRDSEED_BN
Generates a true random positive Big Number of the specified bit length using the RDSEED instruction.
Syntax
IppStatus ippsTRNGenRDSEED_BN(IppsBigNumState* pRand, int nBits, void* pCtx);
Include Files
ippcp.h
Parameters
pRand  |  
        Pointer to the output true random Big Number.  |  
       
nBits  |  
        The number of generated true random bits.  |  
       
pCtx  |  
        Pointer to the IppsPRNGState context. This pointer is unused and can be NULL.  |  
       
Description
The function generates a true random positive Big Number of the specified nBits length. The generation is based on the RDSEED instruction available on latest Intel® processors INTEL_ARCH.
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at https://edc.intel.com/content/www/us/en/products/performance/benchmarks/overview/. Notice revision #20201201Return Values
ippStsNoErr  |  
        Indicates no error. Any other value indicates an error or warning.  |  
       
ippStsNullPtrErr  |  
        Indicates an error condition if any of the specified pointers is NULL.  |  
       
ippStsContextMatchErr  |  
        Indicates an error condition if the context parameter does not match the operation.  |  
       
ippStsLengthErr  |  
        Indicates an error condition if nBits is less than 1.  |  
       
ippStsNotSupportedModeErr  |  
        Indicates an error condition if the RDSEED instruction is not available on the target processor.  |