This page compares the performance of the OpenCrypto framework (sys/opencrypto) to OpenSSL.
| Algorithm | Opencrypto 8 KB | OpenSSL 8 KB | Opencrypto 128 KB |
| AES-128-CBC | 472 MB/s | 526 MB/s | 528 MB/s |
| AES-256-CBC | 350 MB/s | 378 MB/s | 381 MB/s |
| AES-128-CTR (ICM) | 1,708 MB/s | 3,687 MB/s | 2,724 MB/s |
| AES-256-CTR (ICM) | 1,447 MB/s | 2,648 MB/s | 2,120 MB/s |
| AES-128-XTS | 1,607 MB/s | 3,323 MB/s | 2,629 MB/s |
| AES-256-XTS | 1,389 MB/s | 2,375 MB/s | 2,086 MB/s |
| AES-128-GCM | 1,150 MB/s | 2,276 MB/s | 1,559 MB/s |
| AES-256-GCM | 1,022 MB/s | 1,749 MB/s | 1,340 MB/s |
| Algorithm | Opencrypto 8 KB | OpenSSL 8 KB | Opencrypto 128 KB |
| AES-128-CBC | 236 MB/s | 257 MB/s | 263 MB/s |
| AES-256-CBC | 175 MB/s | 184 MB/s | 190 MB/s |
| AES-128-CTR (ICM) | 842 MB/s | 1,802 MB/s | 1,358 MB/s |
| AES-256-CTR (ICM) | 716 MB/s | 1,292 MB/s | 1,057 MB/s |
| AES-128-XTS | 809 MB/s | 1,626 MB/s | 1,320 MB/s |
| AES-256-XTS | 686 MB/s | 1,160 MB/s | 1,033 MB/s |
| AES-128-GCM | 558 MB/s | 1,108 MB/s | 777 MB/s |
| AES-256-GCM | 504 MB/s | 850 MB/s | 668 MB/s |