Module Name:	krb5
Committed By:	raeburn
Date:		Wed Apr 13 20:38:37 UTC 2005

Modified Files:
	 krb5/src/lib/crypto/des/ChangeLog krb5/src/lib/crypto/des/d3_cbc.c
		krb5/src/lib/crypto/des/f_cbc.c
		krb5/src/lib/crypto/des/f_cksum.c
		krb5/src/lib/crypto/des/f_tables.h
Added Files:

Removed Files:


Log Message
Allow compile-time specification that small code space is desired.

* d3_cbc.c (krb5int_des3_cbc_encrypt, krb5int_des3_cbc_decrypt): Don't declare
left and right variables as registers.
* f_cksum.c (mit_des_cbc_cksum): Likewise.
* f_cbc.c (krb5int_des_cbc_encrypt, krb5int_des_cbc_decrypt): Likewise.
(krb5int_des_cbc_encrypt): For full blocks, use GET_HALF_BLOCK to read and then
xor, instead of processing each byte individually.
(krb5int_des_do_encrypt_2, krb5int_des_do_decrypt_2) [CONFIG_SMALL]: New
functions, wrapping large macros with the DES inner loops.
* f_tables.h (DES_DO_ENCRYPT_1, DES_DO_DECRYPT_1): Renamed from non-_1 names.
(krb5int_des_do_encrypt_2, krb5int_des_do_decrypt_2): Declare if CONFIG_SMALL
is defined.
(DES_DO_ENCRYPT, DES_DO_DECRYPT): Expand to _1 macros or _2 function calls
depending on whether CONFIG_SMALL is defined.

With CONFIG_SMALL defined, on x86/gcc/glibc, this drops about 5K (25%) of the
code/table space.


To generate a diff of this commit:
	cvs diff -r5.119 -r5.120 krb5/src/lib/crypto/des/ChangeLog
	cvs diff -r5.10 -r5.11 krb5/src/lib/crypto/des/d3_cbc.c
	cvs diff -r1.20 -r1.21 krb5/src/lib/crypto/des/f_cbc.c
	cvs diff -r1.15 -r1.16 krb5/src/lib/crypto/des/f_cksum.c
	cvs diff -r1.8 -r1.9 krb5/src/lib/crypto/des/f_tables.h