Lightweight GOST crypto GCC/STM32
Part implementation of GOST crypto algorithm
GOST 34.11-2012 HASH 256/512 "Stribog"
GOST 34.12-2015 Block encryption/decryption method "Magma"
GOST 34.13-2015 CTR, ECB and MIC mode of "Magma"
R 1323565.1.026–2019 MGM mode of "Magma"
Atolic True Studio 9.2.0
Performance tests
MCU configuration STM32L071KB (Cortex M0+) tacted from HSI 16MHz
| Magma | Os | O3 | O2 | O1 | O0 |
|---|---|---|---|---|---|
| ROM, byte | 952 | 2.6k | 1.47k | 1.17k | 2.41k |
| RAM per ctx, byte | 56 | 56 | 56 | 56 | 56 |
| CTR encrypt 4 blocks 1000 times, ms | 4157 | 1588 | 4192 | 4153 | 12099 |
| CTR decrypt 4 blocks 1000 times, ms | 4157 | 1589 | 4192 | 4152 | 12099 |
| CTR encrypt 1 blocks 1000 times, ms | 1047 | 413 | 1058 | 1048 | 3022 |
| CTR decrypt 1 blocks 1000 times, ms | 1046 | 413 | 1059 | 1048 | 3022 |
| ECB encrypt 1000 times, ms | 1028 | 388 | 1036 | 1026 | 2976 |
| ECB decrypt 1000 times, ms | 1031 | 407 | 1040 | 1027 | 2976 |
| MIC calc for 4 blocks 1000 times, ms | 4073 | 1521 | 4111 | 4075 | 11906 |
| MIC calc for 2 blocks 1000 times, ms | 2046 | 769 | 2065 | 2048 | 5970 |
| Magma MGM | Os | O3 | O2 | O1 | O0 |
|---|---|---|---|---|---|
| ROM magma, byte | 656 | 1.37k | 1.06k | 780 | 1.63k |
| ROM mgm, byte | 636 | 936 | 816 | 716 | 1.27k |
| RAM per ctx, byte | 56 | 56 | 56 | 56 | 56 |
| Encrypt 9 bytes 1000 times, ms | 3074 | 1162 | 3105 | 3075 | 8929 |
| Decrypt 9 bytes 1000 times, ms | 3075 | 1161 | 3106 | 3075 | 8930 |
| MIC 9 bytes 1000 times, ms | 5704 | 2443 | 5719 | 5809 | 16166 |
| Encrypt 67 bytes 1000 times, ms | 10227 | 3847 | 10331 | 10229 | 29845 |
| Decrypt 67 bytes 1000 times, ms | 10200 | 3846 | 10300 | 10200 | 29800 |
| MIC 67 bytes + 41 bytes 1000 times, ms | 21499 | 9629 | 21505 | 22081 | 60547 |
| Stribog | Os | O3 | O2 | O1 | O0 |
|---|---|---|---|---|---|
| ROM, byte | 2.23k | 4.98k | 2.41k | 2.3k | 3.02k |
| RAM per ctx, byte | 193 | 193 | 193 | 193 | 193 |
| HASH 512 for 63 byte 100 times, ms | 6631 | 2720 | 5013 | 5119 | 19122 |
| HASH 256 for 63 byte 100 times, ms | 6618 | 2714 | 5008 | 5112 | 19000 |
| HASH 512 for 72 byte 100 times, ms | 8825 | 3623 | 6683 | 6822 | 25493 |
| HASH 256 for 72 byte 100 times, ms | 8820 | 3618 | 6680 | 6818 | 25400 |
| HASH 512 for 32 byte 100 times, ms | 6624 | 2713 | 5007 | 5113 | 19102 |
| HASH 256 for 32 byte 100 times, ms | 6637 | 2717 | 5010 | 5118 | 19100 |