| /* Copyright lowRISC contributors. */ | |
| /* Licensed under the Apache License, Version 2.0, see LICENSE for details. */ | |
| /* SPDX-License-Identifier: Apache-2.0 */ | |
| .section .text.start | |
| /** | |
| * Standalone RSA 1024 decrypt | |
| * | |
| * Uses OTBN modexp bignum lib to decrypt the message from the .data segment | |
| * in this file with the private key contained in .data segment of this file. | |
| * | |
| * Copies the decrypted message to wide registers for comparison (starting at | |
| * w0). See comment at the end of the file for expected values. | |
| */ | |
| run_rsa_1024_dec: | |
| jal x1, modload | |
| jal x1, modexp | |
| /* pointer to out buffer */ | |
| lw x21, 28(x0) | |
| /* copy all limbs of result to wide reg file */ | |
| li x8, 0 | |
| loop x30, 2 | |
| bn.lid x8, 0(x21++) | |
| addi x8, x8, 1 | |
| ecall | |
| .data | |
| /* | |
| * The words below are used by the code above, but the linker can't tell | |
| * because we reference them by absolute address. Make a global symbol | |
| * (cfg_data), which will refer to the whole lot and ensure that gc-sections | |
| * doesn't discard them. | |
| */ | |
| .globl cfg_data | |
| cfg_data: | |
| /* reserved */ | |
| .word 0x00000000 | |
| /* number of limbs (N) */ | |
| .word 0x00000004 | |
| /* pointer to m0' (dptr_m0d) */ | |
| .word 0x00000280 | |
| /* pointer to RR (dptr_rr) */ | |
| .word 0x000002c0 | |
| /* load pointer to modulus (dptr_m) */ | |
| .word 0x00000080 | |
| /* pointer to base bignum buffer (dptr_in) */ | |
| .word 0x000004c0 | |
| /* pointer to exponent buffer (dptr_exp) */ | |
| .word 0x000006c0 | |
| /* pointer to out buffer (dptr_out) */ | |
| .word 0x000008c0 | |
| /* Modulus */ | |
| /* skip to 128 */ | |
| .skip 96 | |
| .word 0xc28cf49f | |
| .word 0xb6e64c3b | |
| .word 0xa21417f1 | |
| .word 0x34ab89fe | |
| .word 0xe4d4c752 | |
| .word 0xe9289a03 | |
| .word 0xc8aa371c | |
| .word 0xafb68c05 | |
| .word 0x893c882e | |
| .word 0xa62c908d | |
| .word 0xd23f4ebf | |
| .word 0xea5bb198 | |
| .word 0xdb6f076f | |
| .word 0xcfcc4b48 | |
| .word 0x75a24aa4 | |
| .word 0x7bda03fc | |
| .word 0xcb5adf60 | |
| .word 0xbc7c20bc | |
| .word 0x8ea4f2fe | |
| .word 0x3ba5d46d | |
| .word 0x21536a4e | |
| .word 0x7f292995 | |
| .word 0xaafd0e56 | |
| .word 0xc8033b94 | |
| .word 0x127ca9e8 | |
| .word 0xa3998c2e | |
| .word 0xecf3ecf6 | |
| .word 0xc39b1e20 | |
| .word 0xdc59f4e7 | |
| .word 0x5affc57c | |
| .word 0x0a4536b4 | |
| .word 0x962be299 | |
| /* encrypted message */ | |
| /* skip to 1216 */ | |
| .skip 960 | |
| .word 0xe0e14a9b | |
| .word 0x7ae96741 | |
| .word 0x4a430036 | |
| .word 0xcda13a47 | |
| .word 0x79524410 | |
| .word 0x3810cd51 | |
| .word 0x3b47425f | |
| .word 0x686f3abe | |
| .word 0x91dff899 | |
| .word 0xbfa8b284 | |
| .word 0x0539e396 | |
| .word 0xa66cf53c | |
| .word 0xbcdc315a | |
| .word 0x0d595811 | |
| .word 0x0a522e08 | |
| .word 0x5b9dce33 | |
| .word 0x6fde2d48 | |
| .word 0x587a618e | |
| .word 0x6b4c0c56 | |
| .word 0x4affcc62 | |
| .word 0x6a88ead2 | |
| .word 0x991f39d0 | |
| .word 0x39f88b9a | |
| .word 0x3c0d6626 | |
| .word 0xa3fe6181 | |
| .word 0x82f3f1f6 | |
| .word 0x43f4ed0b | |
| .word 0x938bfd7b | |
| .word 0x60de8b63 | |
| .word 0x8ade6cc0 | |
| .word 0x91f560d7 | |
| .word 0x35f506d1 | |
| /* private exponent */ | |
| /* skip to 1728 */ | |
| .skip 384 | |
| .word 0x93a8cd95 | |
| .word 0x24a2614b | |
| .word 0xeeb788b3 | |
| .word 0x6dfc48e4 | |
| .word 0xca97cdc4 | |
| .word 0x41146c79 | |
| .word 0xf4ca744b | |
| .word 0xc386c827 | |
| .word 0xd9ddaef3 | |
| .word 0xae51440f | |
| .word 0x9741739d | |
| .word 0x9ebad71b | |
| .word 0x9a7a2bfd | |
| .word 0xfbd58848 | |
| .word 0x13464f06 | |
| .word 0x17f60ed9 | |
| .word 0x1d63a0b9 | |
| .word 0x581ccd6c | |
| .word 0x951579d6 | |
| .word 0x35a9ec64 | |
| .word 0xc3a08e32 | |
| .word 0xdd2f62e8 | |
| .word 0xc3739e4a | |
| .word 0x01ca5c4e | |
| .word 0x3a107e7d | |
| .word 0xf9dacc79 | |
| .word 0x49ecbe20 | |
| .word 0x5d21e910 | |
| .word 0x9550ecb5 | |
| .word 0x511778ce | |
| .word 0x42209f7b | |
| .word 0x41b468dc |