[SOLVED] OpenSSL Encryption Speed

Peter_APIIT · 09-15-2015, 07:07 AM

HI,

I had did a performance test on AES encryption but i don't know how to interpret it.
Please enlighten on the subject. Thanks.

Quote:

# openssl speed aes-128-cbc aes-192-cbc aes-256-cbc
Doing aes-128 cbc for 3s on 16 size blocks: 8067111 aes-128 cbc's in 3.04s
Doing aes-128 cbc for 3s on 64 size blocks: 2454909 aes-128 cbc's in 3.02s
Doing aes-128 cbc for 3s on 256 size blocks: 667281 aes-128 cbc's in 3.03s
Doing aes-128 cbc for 3s on 1024 size blocks: 154994 aes-128 cbc's in 3.04s
Doing aes-128 cbc for 3s on 8192 size blocks: 19244 aes-128 cbc's in 3.01s
Doing aes-192 cbc for 3s on 16 size blocks: 6967546 aes-192 cbc's in 3.01s
Doing aes-192 cbc for 3s on 64 size blocks: 2067574 aes-192 cbc's in 3.01s
Doing aes-192 cbc for 3s on 256 size blocks: 546756 aes-192 cbc's in 3.02s
Doing aes-192 cbc for 3s on 1024 size blocks: 128865 aes-192 cbc's in 3.02s
Doing aes-192 cbc for 3s on 8192 size blocks: 16102 aes-192 cbc's in 3.01s
Doing aes-256 cbc for 3s on 16 size blocks: 6259429 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 64 size blocks: 1779879 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 256 size blocks: 459021 aes-256 cbc's in 3.04s
Doing aes-256 cbc for 3s on 1024 size blocks: 101346 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 8192 size blocks: 12327 aes-256 cbc's in 3.01s
LibreSSL 2.1
built on: date not available
options:bn(64,32) rc4(1x,char) des(ptr,risc1,16,long) aes(partial) idea(int) blowfish(idx)
compiler: information not available
The 'numbers' are in 1000s of bytes per second processed.
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
aes-128 cbc 42458.48k 52024.56k 56377.54k 52208.51k 52374.37k
aes-192 cbc 37036.79k 43961.71k 46347.53k 43694.62k 43823.12k
aes-256 cbc 33272.71k 37844.60k 38654.40k 34477.84k 33549.10k

Thanks.

smallpond · 09-15-2015, 08:02 AM

Take one encryption method aes-256 for example:

The raw data:
Doing aes-256 cbc for 3s on 16 size blocks: 6259429 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 64 size blocks: 1779879 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 256 size blocks: 459021 aes-256 cbc's in 3.04s
Doing aes-256 cbc for 3s on 1024 size blocks: 101346 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 8192 size blocks: 12327 aes-256 cbc's in 3.01s

It processed 6259429 x 16 bytes in 3.01s = 33272712 bytes/sec = 33272 KB/sec (or 32492 KiB/sec)

The table below shows the values calculated as above for 16, 64, 256, 1K, and 8K blocks in units of 1000 bytes/sec:
aes-256 cbc 33272.71k 37844.60k 38654.40k 34477.84k 33549.10k

Peter_APIIT · 09-16-2015, 01:58 AM

Thanks for the clarification. Blowfish-cbc is a lot faster than aes-128-cbc.