Developer Reference for Intel® Integrated Performance Primitives Cryptography 2018

Ref_BN

Extracts the main characteristics of the integer big number from the input structure.

Syntax

IppStatus ippsRef_BN(IppsBigNumSGN *sgn, int *bitSize, Ipp32u** const ppData, const IppsBigNumState *x);

Include Files

ippcp.h

Parameters

sgn

Sign of IppsBigNumState *x.

bitSize

Length of the integer big number in bits.

ppData

Pointer to the data array.

x

Integer big number of the context IppsBigNumState.

Description

The function extracts from the input structure the main characteristics of the integer big number: sign, length, and pointer to the data array. You can extract either the entire set or any subset of these characteristics. To turn off extraction of a particular characteristic, set the appropriate function parameter to NULL.

Return 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.