mirror of
https://github.com/OpenFusionProject/OpenFusion.git
synced 2024-11-22 13:30:06 +00:00
203 lines
4.1 KiB
ArmAsm
203 lines
4.1 KiB
ArmAsm
|
/*
|
||
|
|
* Written by Solar Designer <solar at openwall.com> in 1998-2010.
|
||
|
|
* No copyright is claimed, and the software is hereby placed in the public
|
||
|
|
* domain. In case this attempt to disclaim copyright and place the software
|
||
|
|
* in the public domain is deemed null and void, then the software is
|
||
|
|
* Copyright (c) 1998-2010 Solar Designer and it is hereby released to the
|
||
|
|
* general public under the following terms:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted.
|
||
|
|
*
|
||
|
|
* There's ABSOLUTELY NO WARRANTY, express or implied.
|
||
|
|
*
|
||
|
|
* See crypt_blowfish.c for more information.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef __i386__
|
||
|
|
|
||
|
|
#if defined(__OpenBSD__) && !defined(__ELF__)
|
||
|
|
#define UNDERSCORES
|
||
|
|
#define ALIGN_LOG
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__CYGWIN32__) || defined(__MINGW32__)
|
||
|
|
#define UNDERSCORES
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __DJGPP__
|
||
|
|
#define UNDERSCORES
|
||
|
|
#define ALIGN_LOG
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef UNDERSCORES
|
||
|
|
#define _BF_body_r __BF_body_r
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef ALIGN_LOG
|
||
|
|
#define DO_ALIGN(log) .align (log)
|
||
|
|
#elif defined(DUMBAS)
|
||
|
|
#define DO_ALIGN(log) .align 1 << log
|
||
|
|
#else
|
||
|
|
#define DO_ALIGN(log) .align (1 << (log))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define BF_FRAME 0x200
|
||
|
|
#define ctx %esp
|
||
|
|
|
||
|
|
#define BF_ptr (ctx)
|
||
|
|
|
||
|
|
#define S(N, r) N+BF_FRAME(ctx,r,4)
|
||
|
|
#ifdef DUMBAS
|
||
|
|
#define P(N) 0x1000+N+N+N+N+BF_FRAME(ctx)
|
||
|
|
#else
|
||
|
|
#define P(N) 0x1000+4*N+BF_FRAME(ctx)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This version of the assembly code is optimized primarily for the original
|
||
|
|
* Intel Pentium but is also careful to avoid partial register stalls on the
|
||
|
|
* Pentium Pro family of processors (tested up to Pentium III Coppermine).
|
||
|
|
*
|
||
|
|
* It is possible to do 15% faster on the Pentium Pro family and probably on
|
||
|
|
* many non-Intel x86 processors, but, unfortunately, that would make things
|
||
|
|
* twice slower for the original Pentium.
|
||
|
|
*
|
||
|
|
* An additional 2% speedup may be achieved with non-reentrant code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define L %esi
|
||
|
|
#define R %edi
|
||
|
|
#define tmp1 %eax
|
||
|
|
#define tmp1_lo %al
|
||
|
|
#define tmp2 %ecx
|
||
|
|
#define tmp2_hi %ch
|
||
|
|
#define tmp3 %edx
|
||
|
|
#define tmp3_lo %dl
|
||
|
|
#define tmp4 %ebx
|
||
|
|
#define tmp4_hi %bh
|
||
|
|
#define tmp5 %ebp
|
||
|
|
|
||
|
|
.text
|
||
|
|
|
||
|
|
#define BF_ROUND(L, R, N) \
|
||
|
|
xorl L,tmp2; \
|
||
|
|
xorl tmp1,tmp1; \
|
||
|
|
movl tmp2,L; \
|
||
|
|
shrl $16,tmp2; \
|
||
|
|
movl L,tmp4; \
|
||
|
|
movb tmp2_hi,tmp1_lo; \
|
||
|
|
andl $0xFF,tmp2; \
|
||
|
|
movb tmp4_hi,tmp3_lo; \
|
||
|
|
andl $0xFF,tmp4; \
|
||
|
|
movl S(0,tmp1),tmp1; \
|
||
|
|
movl S(0x400,tmp2),tmp5; \
|
||
|
|
addl tmp5,tmp1; \
|
||
|
|
movl S(0x800,tmp3),tmp5; \
|
||
|
|
xorl tmp5,tmp1; \
|
||
|
|
movl S(0xC00,tmp4),tmp5; \
|
||
|
|
addl tmp1,tmp5; \
|
||
|
|
movl 4+P(N),tmp2; \
|
||
|
|
xorl tmp5,R
|
||
|
|
|
||
|
|
#define BF_ENCRYPT_START \
|
||
|
|
BF_ROUND(L, R, 0); \
|
||
|
|
BF_ROUND(R, L, 1); \
|
||
|
|
BF_ROUND(L, R, 2); \
|
||
|
|
BF_ROUND(R, L, 3); \
|
||
|
|
BF_ROUND(L, R, 4); \
|
||
|
|
BF_ROUND(R, L, 5); \
|
||
|
|
BF_ROUND(L, R, 6); \
|
||
|
|
BF_ROUND(R, L, 7); \
|
||
|
|
BF_ROUND(L, R, 8); \
|
||
|
|
BF_ROUND(R, L, 9); \
|
||
|
|
BF_ROUND(L, R, 10); \
|
||
|
|
BF_ROUND(R, L, 11); \
|
||
|
|
BF_ROUND(L, R, 12); \
|
||
|
|
BF_ROUND(R, L, 13); \
|
||
|
|
BF_ROUND(L, R, 14); \
|
||
|
|
BF_ROUND(R, L, 15); \
|
||
|
|
movl BF_ptr,tmp5; \
|
||
|
|
xorl L,tmp2; \
|
||
|
|
movl P(17),L
|
||
|
|
|
||
|
|
#define BF_ENCRYPT_END \
|
||
|
|
xorl R,L; \
|
||
|
|
movl tmp2,R
|
||
|
|
|
||
|
|
DO_ALIGN(5)
|
||
|
|
.globl _BF_body_r
|
||
|
|
_BF_body_r:
|
||
|
|
movl 4(%esp),%eax
|
||
|
|
pushl %ebp
|
||
|
|
pushl %ebx
|
||
|
|
pushl %esi
|
||
|
|
pushl %edi
|
||
|
|
subl $BF_FRAME-8,%eax
|
||
|
|
xorl L,L
|
||
|
|
cmpl %esp,%eax
|
||
|
|
ja BF_die
|
||
|
|
xchgl %eax,%esp
|
||
|
|
xorl R,R
|
||
|
|
pushl %eax
|
||
|
|
leal 0x1000+BF_FRAME-4(ctx),%eax
|
||
|
|
movl 0x1000+BF_FRAME-4(ctx),tmp2
|
||
|
|
pushl %eax
|
||
|
|
xorl tmp3,tmp3
|
||
|
|
BF_loop_P:
|
||
|
|
BF_ENCRYPT_START
|
||
|
|
addl $8,tmp5
|
||
|
|
BF_ENCRYPT_END
|
||
|
|
leal 0x1000+18*4+BF_FRAME(ctx),tmp1
|
||
|
|
movl tmp5,BF_ptr
|
||
|
|
cmpl tmp5,tmp1
|
||
|
|
movl L,-8(tmp5)
|
||
|
|
movl R,-4(tmp5)
|
||
|
|
movl P(0),tmp2
|
||
|
|
ja BF_loop_P
|
||
|
|
leal BF_FRAME(ctx),tmp5
|
||
|
|
xorl tmp3,tmp3
|
||
|
|
movl tmp5,BF_ptr
|
||
|
|
BF_loop_S:
|
||
|
|
BF_ENCRYPT_START
|
||
|
|
BF_ENCRYPT_END
|
||
|
|
movl P(0),tmp2
|
||
|
|
movl L,(tmp5)
|
||
|
|
movl R,4(tmp5)
|
||
|
|
BF_ENCRYPT_START
|
||
|
|
BF_ENCRYPT_END
|
||
|
|
movl P(0),tmp2
|
||
|
|
movl L,8(tmp5)
|
||
|
|
movl R,12(tmp5)
|
||
|
|
BF_ENCRYPT_START
|
||
|
|
BF_ENCRYPT_END
|
||
|
|
movl P(0),tmp2
|
||
|
|
movl L,16(tmp5)
|
||
|
|
movl R,20(tmp5)
|
||
|
|
BF_ENCRYPT_START
|
||
|
|
addl $32,tmp5
|
||
|
|
BF_ENCRYPT_END
|
||
|
|
leal 0x1000+BF_FRAME(ctx),tmp1
|
||
|
|
movl tmp5,BF_ptr
|
||
|
|
cmpl tmp5,tmp1
|
||
|
|
movl P(0),tmp2
|
||
|
|
movl L,-8(tmp5)
|
||
|
|
movl R,-4(tmp5)
|
||
|
|
ja BF_loop_S
|
||
|
|
movl 4(%esp),%esp
|
||
|
|
popl %edi
|
||
|
|
popl %esi
|
||
|
|
popl %ebx
|
||
|
|
popl %ebp
|
||
|
|
ret
|
||
|
|
|
||
|
|
BF_die:
|
||
|
|
/* Oops, need to re-compile with a larger BF_FRAME. */
|
||
|
|
hlt
|
||
|
|
jmp BF_die
|
||
|
|
|
||
|
|
#if defined(__ELF__) && defined(__linux__)
|
||
|
|
.section .note.GNU-stack,"",@progbits
|
||
|
|
#endif
|
||
|
|
#endif
|