BigNumGetSize

Developer Reference for Intel® Integrated Performance Primitives Cryptography

Gets the size of the IppsBigNumState context in bytes.

Syntax

IppStatus ippsBigNumGetSize(int length, int* psize);

Include Files

ippcp.h

Parameters

length	The length of the integer big number in Ipp32u.
pSize	Pointer to the size, in bytes, of the buffer required for initialization.

Description

The function specifies the buffer size required to define a structured working buffer of the context IppsBigNumState for the storage and operations on an integer big number in bytes.

Note

For security reasons, the length of the big number is restricted to 16 kilobits.

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.
ippStsLengthErr	Indicates an error condition if length is less than or equal to 0 or greater than 512.