diff options
Diffstat (limited to 'crypto/des/asm/des-586.pl')
| -rw-r--r-- | crypto/des/asm/des-586.pl | 274 |
1 files changed, 238 insertions, 36 deletions
diff --git a/crypto/des/asm/des-586.pl b/crypto/des/asm/des-586.pl index b75d3c6..5b5f39c 100644 --- a/crypto/des/asm/des-586.pl +++ b/crypto/des/asm/des-586.pl @@ -4,7 +4,8 @@ # Svend Olaf Mikkelsen <svolaf@inet.uni-c.dk> # -push(@INC,"perlasm","../../perlasm"); +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); require "x86asm.pl"; require "cbc.pl"; require "desboth.pl"; @@ -18,29 +19,110 @@ require "desboth.pl"; $L="edi"; $R="esi"; +$trans="ebp"; +$small_footprint=1 if (grep(/\-DOPENSSL_SMALL_FOOTPRINT/,@ARGV)); +# one can discuss setting this variable to 1 unconditionally, as +# the folded loop is only 3% slower than unrolled, but >7 times smaller -&external_label("DES_SPtrans"); +&public_label("DES_SPtrans"); + +&DES_encrypt_internal(); +&DES_decrypt_internal(); &DES_encrypt("DES_encrypt1",1); &DES_encrypt("DES_encrypt2",0); &DES_encrypt3("DES_encrypt3",1); &DES_encrypt3("DES_decrypt3",0); &cbc("DES_ncbc_encrypt","DES_encrypt1","DES_encrypt1",0,4,5,3,5,-1); &cbc("DES_ede3_cbc_encrypt","DES_encrypt3","DES_decrypt3",0,6,7,3,4,5); +&DES_SPtrans(); &asm_finish(); +sub DES_encrypt_internal() + { + &function_begin_B("_x86_DES_encrypt"); + + if ($small_footprint) + { + &lea("edx",&DWP(128,"ecx")); + &push("edx"); + &push("ecx"); + &set_label("eloop"); + &D_ENCRYPT(0,$L,$R,0,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment(""); + &D_ENCRYPT(1,$R,$L,2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment(""); + &add("ecx",16); + &cmp("ecx",&swtmp(1)); + &mov(&swtmp(0),"ecx"); + &jb(&label("eloop")); + &add("esp",8); + } + else + { + &push("ecx"); + for ($i=0; $i<16; $i+=2) + { + &comment("Round $i"); + &D_ENCRYPT($i,$L,$R,$i*2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment("Round ".sprintf("%d",$i+1)); + &D_ENCRYPT($i+1,$R,$L,($i+1)*2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + } + &add("esp",4); + } + &ret(); + + &function_end_B("_x86_DES_encrypt"); + } + +sub DES_decrypt_internal() + { + &function_begin_B("_x86_DES_decrypt"); + + if ($small_footprint) + { + &push("ecx"); + &lea("ecx",&DWP(128,"ecx")); + &push("ecx"); + &set_label("dloop"); + &D_ENCRYPT(0,$L,$R,-2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment(""); + &D_ENCRYPT(1,$R,$L,-4,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment(""); + &sub("ecx",16); + &cmp("ecx",&swtmp(1)); + &mov(&swtmp(0),"ecx"); + &ja(&label("dloop")); + &add("esp",8); + } + else + { + &push("ecx"); + for ($i=15; $i>0; $i-=2) + { + &comment("Round $i"); + &D_ENCRYPT(15-$i,$L,$R,$i*2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + &comment("Round ".sprintf("%d",$i-1)); + &D_ENCRYPT(15-$i+1,$R,$L,($i-1)*2,$trans,"eax","ebx","ecx","edx",&swtmp(0)); + } + &add("esp",4); + } + &ret(); + + &function_end_B("_x86_DES_decrypt"); + } + sub DES_encrypt { local($name,$do_ip)=@_; - &function_begin_B($name,"EXTRN _DES_SPtrans:DWORD"); + &function_begin_B($name); &push("esi"); &push("edi"); &comment(""); &comment("Load the 2 words"); - $trans="ebp"; if ($do_ip) { @@ -73,39 +155,20 @@ sub DES_encrypt } # PIC-ification:-) - &picmeup($trans,"DES_SPtrans"); - #if ($cpp) { &picmeup($trans,"DES_SPtrans"); } - #else { &lea($trans,&DWP("DES_SPtrans")); } + &call (&label("pic_point")); + &set_label("pic_point"); + &blindpop($trans); + &lea ($trans,&DWP(&label("DES_SPtrans")."-".&label("pic_point"),$trans)); &mov( "ecx", &wparam(1) ); - &cmp("ebx","0"); - &je(&label("start_decrypt")); - - for ($i=0; $i<16; $i+=2) - { - &comment(""); - &comment("Round $i"); - &D_ENCRYPT($i,$L,$R,$i*2,$trans,"eax","ebx","ecx","edx"); - - &comment(""); - &comment("Round ".sprintf("%d",$i+1)); - &D_ENCRYPT($i+1,$R,$L,($i+1)*2,$trans,"eax","ebx","ecx","edx"); - } - &jmp(&label("end")); - &set_label("start_decrypt"); - - for ($i=15; $i>0; $i-=2) - { - &comment(""); - &comment("Round $i"); - &D_ENCRYPT(15-$i,$L,$R,$i*2,$trans,"eax","ebx","ecx","edx"); - &comment(""); - &comment("Round ".sprintf("%d",$i-1)); - &D_ENCRYPT(15-$i+1,$R,$L,($i-1)*2,$trans,"eax","ebx","ecx","edx"); - } - - &set_label("end"); + &cmp("ebx","0"); + &je(&label("decrypt")); + &call("_x86_DES_encrypt"); + &jmp(&label("done")); + &set_label("decrypt"); + &call("_x86_DES_decrypt"); + &set_label("done"); if ($do_ip) { @@ -139,7 +202,7 @@ sub DES_encrypt sub D_ENCRYPT { - local($r,$L,$R,$S,$trans,$u,$tmp1,$tmp2,$t)=@_; + local($r,$L,$R,$S,$trans,$u,$tmp1,$tmp2,$t,$wp1)=@_; &mov( $u, &DWP(&n2a($S*4),$tmp2,"",0)); &xor( $tmp1, $tmp1); @@ -166,7 +229,7 @@ sub D_ENCRYPT &and( $t, "0xff" ); &xor( $L, &DWP("0x600",$trans,$tmp1,0)); &xor( $L, &DWP("0x700",$trans,$tmp2,0)); - &mov( $tmp2, &wparam(1) ); + &mov( $tmp2, $wp1 ); &xor( $L, &DWP("0x400",$trans,$u,0)); &xor( $L, &DWP("0x500",$trans,$t,0)); } @@ -249,3 +312,142 @@ sub FP_new &rotr($tt , 4); } +sub DES_SPtrans + { + &set_label("DES_SPtrans",64); + &data_word(0x02080800, 0x00080000, 0x02000002, 0x02080802); + &data_word(0x02000000, 0x00080802, 0x00080002, 0x02000002); + &data_word(0x00080802, 0x02080800, 0x02080000, 0x00000802); + &data_word(0x02000802, 0x02000000, 0x00000000, 0x00080002); + &data_word(0x00080000, 0x00000002, 0x02000800, 0x00080800); + &data_word(0x02080802, 0x02080000, 0x00000802, 0x02000800); + &data_word(0x00000002, 0x00000800, 0x00080800, 0x02080002); + &data_word(0x00000800, 0x02000802, 0x02080002, 0x00000000); + &data_word(0x00000000, 0x02080802, 0x02000800, 0x00080002); + &data_word(0x02080800, 0x00080000, 0x00000802, 0x02000800); + &data_word(0x02080002, 0x00000800, 0x00080800, 0x02000002); + &data_word(0x00080802, 0x00000002, 0x02000002, 0x02080000); + &data_word(0x02080802, 0x00080800, 0x02080000, 0x02000802); + &data_word(0x02000000, 0x00000802, 0x00080002, 0x00000000); + &data_word(0x00080000, 0x02000000, 0x02000802, 0x02080800); + &data_word(0x00000002, 0x02080002, 0x00000800, 0x00080802); + # nibble 1 + &data_word(0x40108010, 0x00000000, 0x00108000, 0x40100000); + &data_word(0x40000010, 0x00008010, 0x40008000, 0x00108000); + &data_word(0x00008000, 0x40100010, 0x00000010, 0x40008000); + &data_word(0x00100010, 0x40108000, 0x40100000, 0x00000010); + &data_word(0x00100000, 0x40008010, 0x40100010, 0x00008000); + &data_word(0x00108010, 0x40000000, 0x00000000, 0x00100010); + &data_word(0x40008010, 0x00108010, 0x40108000, 0x40000010); + &data_word(0x40000000, 0x00100000, 0x00008010, 0x40108010); + &data_word(0x00100010, 0x40108000, 0x40008000, 0x00108010); + &data_word(0x40108010, 0x00100010, 0x40000010, 0x00000000); + &data_word(0x40000000, 0x00008010, 0x00100000, 0x40100010); + &data_word(0x00008000, 0x40000000, 0x00108010, 0x40008010); + &data_word(0x40108000, 0x00008000, 0x00000000, 0x40000010); + &data_word(0x00000010, 0x40108010, 0x00108000, 0x40100000); + &data_word(0x40100010, 0x00100000, 0x00008010, 0x40008000); + &data_word(0x40008010, 0x00000010, 0x40100000, 0x00108000); + # nibble 2 + &data_word(0x04000001, 0x04040100, 0x00000100, 0x04000101); + &data_word(0x00040001, 0x04000000, 0x04000101, 0x00040100); + &data_word(0x04000100, 0x00040000, 0x04040000, 0x00000001); + &data_word(0x04040101, 0x00000101, 0x00000001, 0x04040001); + &data_word(0x00000000, 0x00040001, 0x04040100, 0x00000100); + &data_word(0x00000101, 0x04040101, 0x00040000, 0x04000001); + &data_word(0x04040001, 0x04000100, 0x00040101, 0x04040000); + &data_word(0x00040100, 0x00000000, 0x04000000, 0x00040101); + &data_word(0x04040100, 0x00000100, 0x00000001, 0x00040000); + &data_word(0x00000101, 0x00040001, 0x04040000, 0x04000101); + &data_word(0x00000000, 0x04040100, 0x00040100, 0x04040001); + &data_word(0x00040001, 0x04000000, 0x04040101, 0x00000001); + &data_word(0x00040101, 0x04000001, 0x04000000, 0x04040101); + &data_word(0x00040000, 0x04000100, 0x04000101, 0x00040100); + &data_word(0x04000100, 0x00000000, 0x04040001, 0x00000101); + &data_word(0x04000001, 0x00040101, 0x00000100, 0x04040000); + # nibble 3 + &data_word(0x00401008, 0x10001000, 0x00000008, 0x10401008); + &data_word(0x00000000, 0x10400000, 0x10001008, 0x00400008); + &data_word(0x10401000, 0x10000008, 0x10000000, 0x00001008); + &data_word(0x10000008, 0x00401008, 0x00400000, 0x10000000); + &data_word(0x10400008, 0x00401000, 0x00001000, 0x00000008); + &data_word(0x00401000, 0x10001008, 0x10400000, 0x00001000); + &data_word(0x00001008, 0x00000000, 0x00400008, 0x10401000); + &data_word(0x10001000, 0x10400008, 0x10401008, 0x00400000); + &data_word(0x10400008, 0x00001008, 0x00400000, 0x10000008); + &data_word(0x00401000, 0x10001000, 0x00000008, 0x10400000); + &data_word(0x10001008, 0x00000000, 0x00001000, 0x00400008); + &data_word(0x00000000, 0x10400008, 0x10401000, 0x00001000); + &data_word(0x10000000, 0x10401008, 0x00401008, 0x00400000); + &data_word(0x10401008, 0x00000008, 0x10001000, 0x00401008); + &data_word(0x00400008, 0x00401000, 0x10400000, 0x10001008); + &data_word(0x00001008, 0x10000000, 0x10000008, 0x10401000); + # nibble 4 + &data_word(0x08000000, 0x00010000, 0x00000400, 0x08010420); + &data_word(0x08010020, 0x08000400, 0x00010420, 0x08010000); + &data_word(0x00010000, 0x00000020, 0x08000020, 0x00010400); + &data_word(0x08000420, 0x08010020, 0x08010400, 0x00000000); + &data_word(0x00010400, 0x08000000, 0x00010020, 0x00000420); + &data_word(0x08000400, 0x00010420, 0x00000000, 0x08000020); + &data_word(0x00000020, 0x08000420, 0x08010420, 0x00010020); + &data_word(0x08010000, 0x00000400, 0x00000420, 0x08010400); + &data_word(0x08010400, 0x08000420, 0x00010020, 0x08010000); + &data_word(0x00010000, 0x00000020, 0x08000020, 0x08000400); + &data_word(0x08000000, 0x00010400, 0x08010420, 0x00000000); + &data_word(0x00010420, 0x08000000, 0x00000400, 0x00010020); + &data_word(0x08000420, 0x00000400, 0x00000000, 0x08010420); + &data_word(0x08010020, 0x08010400, 0x00000420, 0x00010000); + &data_word(0x00010400, 0x08010020, 0x08000400, 0x00000420); + &data_word(0x00000020, 0x00010420, 0x08010000, 0x08000020); + # nibble 5 + &data_word(0x80000040, 0x00200040, 0x00000000, 0x80202000); + &data_word(0x00200040, 0x00002000, 0x80002040, 0x00200000); + &data_word(0x00002040, 0x80202040, 0x00202000, 0x80000000); + &data_word(0x80002000, 0x80000040, 0x80200000, 0x00202040); + &data_word(0x00200000, 0x80002040, 0x80200040, 0x00000000); + &data_word(0x00002000, 0x00000040, 0x80202000, 0x80200040); + &data_word(0x80202040, 0x80200000, 0x80000000, 0x00002040); + &data_word(0x00000040, 0x00202000, 0x00202040, 0x80002000); + &data_word(0x00002040, 0x80000000, 0x80002000, 0x00202040); + &data_word(0x80202000, 0x00200040, 0x00000000, 0x80002000); + &data_word(0x80000000, 0x00002000, 0x80200040, 0x00200000); + &data_word(0x00200040, 0x80202040, 0x00202000, 0x00000040); + &data_word(0x80202040, 0x00202000, 0x00200000, 0x80002040); + &data_word(0x80000040, 0x80200000, 0x00202040, 0x00000000); + &data_word(0x00002000, 0x80000040, 0x80002040, 0x80202000); + &data_word(0x80200000, 0x00002040, 0x00000040, 0x80200040); + # nibble 6 + &data_word(0x00004000, 0x00000200, 0x01000200, 0x01000004); + &data_word(0x01004204, 0x00004004, 0x00004200, 0x00000000); + &data_word(0x01000000, 0x01000204, 0x00000204, 0x01004000); + &data_word(0x00000004, 0x01004200, 0x01004000, 0x00000204); + &data_word(0x01000204, 0x00004000, 0x00004004, 0x01004204); + &data_word(0x00000000, 0x01000200, 0x01000004, 0x00004200); + &data_word(0x01004004, 0x00004204, 0x01004200, 0x00000004); + &data_word(0x00004204, 0x01004004, 0x00000200, 0x01000000); + &data_word(0x00004204, 0x01004000, 0x01004004, 0x00000204); + &data_word(0x00004000, 0x00000200, 0x01000000, 0x01004004); + &data_word(0x01000204, 0x00004204, 0x00004200, 0x00000000); + &data_word(0x00000200, 0x01000004, 0x00000004, 0x01000200); + &data_word(0x00000000, 0x01000204, 0x01000200, 0x00004200); + &data_word(0x00000204, 0x00004000, 0x01004204, 0x01000000); + &data_word(0x01004200, 0x00000004, 0x00004004, 0x01004204); + &data_word(0x01000004, 0x01004200, 0x01004000, 0x00004004); + # nibble 7 + &data_word(0x20800080, 0x20820000, 0x00020080, 0x00000000); + &data_word(0x20020000, 0x00800080, 0x20800000, 0x20820080); + &data_word(0x00000080, 0x20000000, 0x00820000, 0x00020080); + &data_word(0x00820080, 0x20020080, 0x20000080, 0x20800000); + &data_word(0x00020000, 0x00820080, 0x00800080, 0x20020000); + &data_word(0x20820080, 0x20000080, 0x00000000, 0x00820000); + &data_word(0x20000000, 0x00800000, 0x20020080, 0x20800080); + &data_word(0x00800000, 0x00020000, 0x20820000, 0x00000080); + &data_word(0x00800000, 0x00020000, 0x20000080, 0x20820080); + &data_word(0x00020080, 0x20000000, 0x00000000, 0x00820000); + &data_word(0x20800080, 0x20020080, 0x20020000, 0x00800080); + &data_word(0x20820000, 0x00000080, 0x00800080, 0x20020000); + &data_word(0x20820080, 0x00800000, 0x20800000, 0x20000080); + &data_word(0x00820000, 0x00020080, 0x20020080, 0x20800000); + &data_word(0x00000080, 0x20820000, 0x00820080, 0x00000000); + &data_word(0x20000000, 0x20800080, 0x00020000, 0x00820080); + } |
