Module Name:	basesrc
Committed By:	thorpej
Date:		Mon Jul 31 18:39:07 UTC 2000

Added Files:
	basesrc/lib/libcrypto/arch/i386: bf.inc bf_enc_586.S bf_enc_686.S
	    bf_enc_x86.S

Log Message:
Add support for building the assembly versions of Blowfish encrypt
and decrypt from OpenSSL.  Right now we only build the 586 version,
but eventually we will be able to build the 686 version based on a
CPP flag defined as a result of using `cc -mcpu=pentiumpro'.

We don't build the assembly version of BF_cbc_encrypt(), as it would
have to be rewritten to be PIC.

Performance difference is quite noticeable.

Before:
Doing blowfish cbc for 3s on 8 size blocks: 2891026 blowfish cbc's in 2.97s
Doing blowfish cbc for 3s on 64 size blocks: 411766 blowfish cbc's in 3.10s
Doing blowfish cbc for 3s on 256 size blocks: 104721 blowfish cbc's in 3.00s
Doing blowfish cbc for 3s on 1024 size blocks: 26291 blowfish cbc's in 2.98s
Doing blowfish cbc for 3s on 8192 size blocks: 3290 blowfish cbc's in 3.10s
type              8 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
blowfish cbc      7787.28k     8755.16k     8936.19k     9034.22k     8954.05k

After:
Doing blowfish cbc for 3s on 8 size blocks: 4573792 blowfish cbc's in 3.10s
Doing blowfish cbc for 3s on 64 size blocks: 713440 blowfish cbc's in 2.99s
Doing blowfish cbc for 3s on 256 size blocks: 183125 blowfish cbc's in 3.00s
Doing blowfish cbc for 3s on 1024 size blocks: 46221 blowfish cbc's in 3.00s
Doing blowfish cbc for 3s on 8192 size blocks: 5787 blowfish cbc's in 3.00s
type              8 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
blowfish cbc     12156.26k    15270.96k    15626.67k    15776.77k    15802.37k


To generate a diff of this commit:
cvs rdiff -r0 -r1.1 basesrc/lib/libcrypto/arch/i386/bf.inc \
    basesrc/lib/libcrypto/arch/i386/bf_enc_586.S \
    basesrc/lib/libcrypto/arch/i386/bf_enc_686.S \
    basesrc/lib/libcrypto/arch/i386/bf_enc_x86.S

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.