| /* Copyright lowRISC contributors. */ |
| /* Licensed under the Apache License, Version 2.0, see LICENSE for details. */ |
| /* SPDX-License-Identifier: Apache-2.0 */ |
| /* |
| * Standalone test for P-384 scalar multiplication with base point. |
| * |
| * Performs multiplication of the base point of P-384 by a scalar. This |
| * resembles computing the public key for a given private key. The scalar |
| * (private key) is contained in the .data section below. |
| * |
| * See comment at the end of the file for expected values of coordinates |
| * of resulting point. |
| */ |
| |
| .section .text.start |
| |
| p384_base_mult_test: |
| |
| /* set dmem pointer to point to scalar (private key) d */ |
| la x2, scalar |
| la x3, dptr_d |
| sw x2, 0(x3) |
| |
| /* set dmem pointer to point to blinding parameter */ |
| la x2, blinding_param |
| la x3, dptr_rnd |
| sw x2, 0(x3) |
| |
| /* set dmem pointer to point to x-coordinate */ |
| la x2, p1_x |
| la x3, dptr_x |
| sw x2, 0(x3) |
| |
| /* set dmem pointer to point to y-coordinate */ |
| la x2, p1_y |
| la x3, dptr_y |
| sw x2, 0(x3) |
| |
| /* call base point multiplication routine in P-384 lib */ |
| jal x1, p384_base_mult |
| |
| /* load result to WDRs for comparison with reference */ |
| li x2, 0 |
| la x3, p1_x |
| bn.lid x2++, 0(x3) |
| bn.lid x2++, 32(x3) |
| la x3, p1_y |
| bn.lid x2++, 0(x3) |
| bn.lid x2, 32(x3) |
| |
| ecall |
| |
| |
| .section .data |
| |
| /* scalar d */ |
| scalar: |
| .word 0xe8791ba3 |
| .word 0xf549e1f7 |
| .word 0x893be358 |
| .word 0x100794fe |
| .word 0xbc9db95d |
| .word 0xfd7ed624 |
| .word 0xc60ebab6 |
| .word 0x97ba9586 |
| .word 0xa026b431 |
| .word 0x37112316 |
| .word 0x8b26eef1 |
| .word 0xc1a0cf66 |
| .zero 16 |
| |
| /* blinding parameter rnd */ |
| blinding_param: |
| .word 0xa82c85b0 |
| .word 0x163ce1c8 |
| .word 0x32518fd7 |
| .word 0xf8a428cd |
| .word 0xf5b9d867 |
| .word 0x00906f5f |
| .word 0x7387b4f2 |
| .word 0xa2d3da7a |
| .word 0xebe0a647 |
| .word 0xfb2ef7ca |
| .word 0x74249432 |
| .word 0x230e5ff6 |
| .zero 16 |
| |
| /* result buffer x-coordinate */ |
| p1_x: |
| .zero 64 |
| |
| /* result buffer y-coordinate */ |
| p1_y: |
| .zero 64 |
