Developer Reference for Intel® Integrated Performance Primitives Cryptography 2018
Gets the size of the context of a GF(q) field.
IppStatus ippsGFpGetSize(int bitSize, int* pStateSizeInBytes);
ippcp.h
bitSize |
Size, in bytes, of the odd prime number q (modulus of GF(q)). |
pStateSizeInBytes |
Pointer to the buffer size, in bytes, needed for the IppsGFpState context. |
This function returns the size of the buffer associated with the IppsGFpState context, which you can use to store data of the finite field GF(q) determined by the odd prime number q of size not greater than bitSize bit.
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. |
ippStsSizeErr |
Indicates an error condition if bitSize is less than 2 or greater than 1024. |