19. Montmult_fun_ctest_gfp

19.1. Function description:

This demo shows the operation of Montgomery Multiplication in GF(p).

• Allocate enough memory space of SRAM used by internal logic during computation.

• Filling data to address of N.

• Configure & start INV_N0 operation.

• Filling data to operand a & b address for montgomery multiplication operation.

• Configure & start MontMult operation.

• Configure & start MOD operation.

• Waiting process done to compare the result with the golden data to check.

19.2. Main Configuration:

19.2.1. INV_N0 operation:

Operation code	Field	Data length	Reserved area size
OP_INV_N0	GF(p)	1 words	6 words per variable

19.2.2. MontMult operation:

Operation code	Type	Field
OP_MontMult	MM_MULT	GF(p)

19.2.3. MOD operation:

Operation code	Option	Field	Operand a length	Operand b length
OP_MOD	ordinary	GF(p)	2 words	1 words

Note

For MOD operation, the length of operand a must greater than operand b.

19.3. Test result:

If the result is same as the standard data, then print pass, if not print fail.

19.4. IO connection:

None