Satria Bakti (13297096) wrote: > Hi, > > I'm doing some experiment on openssl-0.9.7-stable-SNAP-20020421. > I replaced the AES code (the original AES code) with > Brian Gladman's AES code (with some modification). > (http://fp.gladman.plus.com/cryptography_technology/rijndael/) > > Then, I measure my new implementation's speed using > 'openssl speed aes' command in openssl. > Here's the original result: > --- > OpenSSL 0.9.7-dev XX xxx XXXX > built on: Thu Jun 5 02:05:14 GMT-5 2002 > options:bn(64,32) md2(int) rc4(idx,int) des(ptr,risc1,16,long) aes(partial) >idea(int) blowfish(idx) > compiler: gcc -fPIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN > -DHAVE_DLFCN_H -DOPENSSL_NO_KRB5 -DL_ENDIAN -DTERMIO -O3 > -fomit-frame-pointer -mcpu=pentium -Wall -DSHA1_ASM -DMD5_ASM -DRMD160_ASM > available timing options: TIMES TIMEB HZ=100 [sysconf value] > timing function used: times > The 'numbers' are in 1000s of bytes per second processed. > type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 > bytes > aes-128 cbc 6258.41k 6621.88k 6719.09k 6749.09k > 6777.02k > aes-192 cbc 5425.44k 5594.44k 5557.54k 5569.25k > 5624.07k > aes-256 cbc 4800.59k 4929.72k 4979.67k 4992.43k > 4931.75k > --- > > > > And here's my implementation result: > > --- > OpenSSL 0.9.7-dev XX xxx XXXX > built on: Thu Jun 6 01:47:25 GMT-5 2002 > options:bn(64,32) md2(int) rc4(idx,int) des(ptr,risc1,16,long) aes(partial) >idea(int) blowfish(idx) > compiler: gcc -fPIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN > -DHAVE_DLFCN_H -DOPENSSL_NO_KRB5 -DL_ENDIAN -DTERMIO -O3 > -fomit-frame-pointer -mcpu=pentium -Wall -DSHA1_ASM -DMD5_ASM -DRMD160_ASM > available timing options: TIMES TIMEB HZ=100 [sysconf value] > timing function used: times > The 'numbers' are in 1000s of bytes per second processed. > type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 > bytes > aes-128 cbc 27900.53k 34734.04k 36680.45k 37256.87k > 37552.13k > aes-192 cbc 28848.54k 34869.08k 36367.02k 37445.97k > 36814.85k > aes-256 cbc 26579.55k 34030.28k 36479.91k 36972.89k > 37538.47k > --- > > I'm using PentiumIII-450Mhz-512KB cache, 126.69MB Physical Memory, > Linux 2.4.7-10, and gcc-2.96. > > There are significant increases. I'm afraid that there is something > wrong with my implementation. How could the speed increase so > significant ? > > Any comments or explanations are welcome.
Its possible, in fact - because what we have is the reference code, and Gladman's is optimised for speed. Of course, if the code passes the tests, then you must, presumably, have got it right. Are you planning to contribute your implementation (I'd been planning to look at this at some point myself). Cheers, Ben. -- http://www.apache-ssl.org/ben.html http://www.thebunker.net/ "There is no limit to what a man can do or how far he can go if he doesn't mind who gets the credit." - Robert Woodruff ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
