MontGetSize

Gets the size of the IppsMontState context.

Syntax

IppStatus ippsMontGetSize(IppsExpMethod method, int length, int * size);

Parameters

method	Selected exponential method.
length	Data field length for the modulus.
size	Size of the buffer required for initialization.

Description

This function is declared in the ippcp.h file. The function specifies the buffer size required to define the structuralized working buffer of the context IppsMontState to store the modulus and perform operations using various Montgomery modulus schemes.

The function returns the required buffer size based on the selected exponential method. The binary method helps to significantly reduce the buffer size, while the sliding windows method results in enhanced performance.

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.