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Diffstat (limited to 'secure/lib/libdes/INSTALL')
| -rw-r--r-- | secure/lib/libdes/INSTALL | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/secure/lib/libdes/INSTALL b/secure/lib/libdes/INSTALL deleted file mode 100644 index c8cc5bebd6e2..000000000000 --- a/secure/lib/libdes/INSTALL +++ /dev/null @@ -1,57 +0,0 @@ -Check the CC and CFLAGS lines in the makefile - -If your C library does not support the times(3) function, change the -#define TIMES to -#undef TIMES in speed.c -If it does, check the HZ value for the times(3) function. -If your system does not define CLK_TCK it will be assumed to -be 100.0. - -If possible use gcc v 2.7.? -Turn on the maximum optimising (normally '-O3 -fomit-frame-pointer' for gcc) - -type 'make' - -run './destest' to check things are ok. -run './rpw' to check the tty code for reading passwords works. -run './speed' to see how fast those optimisations make the library run :-) - -A make install will by default install -libdes.a in /usr/local/lib/libdes.a -des in /usr/local/bin/des -des_crypt.man in /usr/local/man/man3/des_crypt.3 -des.man in /usr/local/man/man1/des.1 -des.h in /usr/include/des.h - -des(1) should be compatible with sunOS's but I have been unable to -test it. - -These routines should compile on MSDOS, most 32bit and 64bit version -of Unix (BSD and SYSV) and VMS, without modification. -The only problems should be #include files that are in the wrong places. - -These routines can be compiled under MSDOS. -I have successfully encrypted files using des(1) under MSDOS and then -decrypted the files on a SparcStation. -I have been able to compile and test the routines with -Microsoft C v 5.1 and Turbo C v 2.0. -The code in this library is in no way optimised for the 16bit -operation of MSDOS. Microsoft C generates code that is 40% slower -than Turbo C's code. I believe this is due to problems it has with -code generation with the 32bit shift operation in the IP and FP -sections. I have added some 16bit optimization in ecb_encrypt.c -and this generated a %70 speedup under Turbo C. Such are the -limitations of DOS compilers :-(. - -For Turbo C v 2.0, make sure to define MSDOS, in the relevant menu. - -There is an alternative version of the D_ENCRYPT macro that can be -enabled with the -DDES_USE_PTR option in the makefile. This alternative -macro can make a +-%20 speed difference to the DES encryption speed, -depending on the compiler/CPU combinations. -It has its greatest effect on Sparc machines when using the sun compiler. -If in doubt, try enable/disable it and running speed. It does not -seem to affect gcc much. - -When building for glibc, ignore all of the above and just unpack into -glibc-1.??/des and then gmake as per normal. |