From a5a3db4393d85407ff4c5668d88860e06158abd0 Mon Sep 17 00:00:00 2001 From: Alexey Kulakov Date: Wed, 4 Jul 2012 13:17:29 +0000 Subject: History++ sources upload (all files, no project) git-svn-id: http://svn.miranda-ng.org/main/trunk@756 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/HistoryPlusPlus/Checksum.pas | 363 +++++++++++++++++++++++++++++++++++ 1 file changed, 363 insertions(+) create mode 100644 plugins/HistoryPlusPlus/Checksum.pas (limited to 'plugins/HistoryPlusPlus/Checksum.pas') diff --git a/plugins/HistoryPlusPlus/Checksum.pas b/plugins/HistoryPlusPlus/Checksum.pas new file mode 100644 index 0000000000..dab601641a --- /dev/null +++ b/plugins/HistoryPlusPlus/Checksum.pas @@ -0,0 +1,363 @@ +{----------------------------------------------------------------------------- + Checksum (History++ project) + + Version: 1.0 + Created: 29.03.2003 + + [ Description ] + + + + [ History ] + + +-----------------------------------------------------------------------------} + + +{Copyright: Hagen Reddmann mailto:HaReddmann@AOL.COM + Author: Hagen Reddmann + Remarks: freeware, but this Copyright must be included + known Problems: none + Version: 3.0, Delphi Encryption Compendium + Delphi 2-4, BCB 3-4, designed and testet under D3 and D4 + Description: Utilitys for the DEC Packages + + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +} +unit Checksum; + +interface + +uses SysUtils, Windows, Base64; + +type + TDig64 = array[0..1] of DWord; + +function DigToBase(Digest: TDig64): AnsiString; +function BaseToDig(Str: AnsiString): TDig64; +//function StrToDig(Str: AnsiString): TDig64; +function DigToStr(Digest: TDig64): AnsiString; +function SameDigest(Dig1,Dig2: TDig64): Boolean; +procedure CalcCRC32(Data: Pointer; DataSize: DWord; var CRCValue: DWord); +//function CRC32(CRC: DWord; Data: Pointer; DataSize: DWord): LongWord; assembler; +//function CRC32a(CRC: DWord; Data: Pointer; DataSize: DWord): DWord; +function HashString(Str: AnsiString): TDig64; +procedure CalcSampleHash(const Data: Pointer; DataSize: Integer; var Digest: TDig64); + +var + ZeroDig: TDig64 = (0,0); + +implementation + +const + DIGEST_DIV = '-'; +const + InitDigest: TDig64 = ($F3C55C5C,$05000000); + InitCRC: DWord = $F3C55C5C; + +function DigToBase(Digest: TDig64): AnsiString; +var + DigStr: AnsiString; +begin + SetLength(DigStr, SizeOf(Digest)); + Move(Digest, DigStr[1], SizeOf(Digest)); + Result := Base64EncodeStr(DigStr); +end; + +function BaseToDig(Str: AnsiString): TDig64; +var + DigStr: AnsiString; +begin + DigStr := Base64DecodeStr(Str); + Move(DigStr[1], Result, SizeOf(Result)); +end; + +function HashString(Str: AnsiString): TDig64; +begin + Result := ZeroDig; + Result[0] := InitCRC; + CalcCRC32(@Str[1], Length(Str), Result[0]); + // CalcSampleHash(@Str[1],Length(Str),Result); +end; +(* +function StrToDig(Str: AnsiString): TDig64; +var + Dig1, Dig2: AnsiString; + n: Integer; +begin + Result[0] := 0; + Result[1] := 0; + n := Pos(DIGEST_DIV, Str); + if n = 0 then + exit; + + Dig1 := Copy(Str, 1, n - 1); + Dig2 := Copy(Str, n + 1, Length(Str)); + + Result[0] := StrToInt('$' + Dig1); + Result[1] := StrToInt('$' + Dig2); +end; +*) +function DigToStr(Digest: TDig64): AnsiString; +begin + Result := AnsiString(IntToHex(Digest[0], 8)) + DIGEST_DIV + AnsiString(IntToHex(Digest[1], 8)); +end; + +function SameDigest(Dig1, Dig2: TDig64): Boolean; +begin + Result := (Dig1[0] = Dig2[0]) and (Dig1[1] = Dig2[1]); +end; + +{ + function CRC32a(CRC: DWord; Data: Pointer; DataSize: DWord): DWord; + begin + Result := CRC32(CRC,Data,DataSize); + end; +} +type + PInteger = ^Integer; + +procedure CalcSampleHash(const Data: Pointer; DataSize: Integer; var Digest: TDig64); +var + B: ^DWord; + T: DWord; +begin + Digest := InitDigest; + B := Data; + while DataSize >= SizeOf(DWord) do + begin + T := Digest[0]; + Inc(Digest[0], B^); + if Digest[0] < T then + Inc(Digest[1]); + Inc(B); + Dec(DataSize, SizeOf(DWord)); + end; + if DataSize > 0 then + begin + T := 0; + Move(B^, T, DataSize); + Inc(Digest[0], T); + end; +end; + +const + CRC32Table: array[0..255] of DWord = + ($00000000, $77073096, $EE0E612C, $990951BA, + $076DC419, $706AF48F, $E963A535, $9E6495A3, + $0EDB8832, $79DCB8A4, $E0D5E91E, $97D2D988, + $09B64C2B, $7EB17CBD, $E7B82D07, $90BF1D91, + $1DB71064, $6AB020F2, $F3B97148, $84BE41DE, + $1ADAD47D, $6DDDE4EB, $F4D4B551, $83D385C7, + $136C9856, $646BA8C0, $FD62F97A, $8A65C9EC, + $14015C4F, $63066CD9, $FA0F3D63, $8D080DF5, + $3B6E20C8, $4C69105E, $D56041E4, $A2677172, + $3C03E4D1, $4B04D447, $D20D85FD, $A50AB56B, + $35B5A8FA, $42B2986C, $DBBBC9D6, $ACBCF940, + $32D86CE3, $45DF5C75, $DCD60DCF, $ABD13D59, + $26D930AC, $51DE003A, $C8D75180, $BFD06116, + $21B4F4B5, $56B3C423, $CFBA9599, $B8BDA50F, + $2802B89E, $5F058808, $C60CD9B2, $B10BE924, + $2F6F7C87, $58684C11, $C1611DAB, $B6662D3D, + + $76DC4190, $01DB7106, $98D220BC, $EFD5102A, + $71B18589, $06B6B51F, $9FBFE4A5, $E8B8D433, + $7807C9A2, $0F00F934, $9609A88E, $E10E9818, + $7F6A0DBB, $086D3D2D, $91646C97, $E6635C01, + $6B6B51F4, $1C6C6162, $856530D8, $F262004E, + $6C0695ED, $1B01A57B, $8208F4C1, $F50FC457, + $65B0D9C6, $12B7E950, $8BBEB8EA, $FCB9887C, + $62DD1DDF, $15DA2D49, $8CD37CF3, $FBD44C65, + $4DB26158, $3AB551CE, $A3BC0074, $D4BB30E2, + $4ADFA541, $3DD895D7, $A4D1C46D, $D3D6F4FB, + $4369E96A, $346ED9FC, $AD678846, $DA60B8D0, + $44042D73, $33031DE5, $AA0A4C5F, $DD0D7CC9, + $5005713C, $270241AA, $BE0B1010, $C90C2086, + $5768B525, $206F85B3, $B966D409, $CE61E49F, + $5EDEF90E, $29D9C998, $B0D09822, $C7D7A8B4, + $59B33D17, $2EB40D81, $B7BD5C3B, $C0BA6CAD, + + $EDB88320, $9ABFB3B6, $03B6E20C, $74B1D29A, + $EAD54739, $9DD277AF, $04DB2615, $73DC1683, + $E3630B12, $94643B84, $0D6D6A3E, $7A6A5AA8, + $E40ECF0B, $9309FF9D, $0A00AE27, $7D079EB1, + $F00F9344, $8708A3D2, $1E01F268, $6906C2FE, + $F762575D, $806567CB, $196C3671, $6E6B06E7, + $FED41B76, $89D32BE0, $10DA7A5A, $67DD4ACC, + $F9B9DF6F, $8EBEEFF9, $17B7BE43, $60B08ED5, + $D6D6A3E8, $A1D1937E, $38D8C2C4, $4FDFF252, + $D1BB67F1, $A6BC5767, $3FB506DD, $48B2364B, + $D80D2BDA, $AF0A1B4C, $36034AF6, $41047A60, + $DF60EFC3, $A867DF55, $316E8EEF, $4669BE79, + $CB61B38C, $BC66831A, $256FD2A0, $5268E236, + $CC0C7795, $BB0B4703, $220216B9, $5505262F, + $C5BA3BBE, $B2BD0B28, $2BB45A92, $5CB36A04, + $C2D7FFA7, $B5D0CF31, $2CD99E8B, $5BDEAE1D, + + $9B64C2B0, $EC63F226, $756AA39C, $026D930A, + $9C0906A9, $EB0E363F, $72076785, $05005713, + $95BF4A82, $E2B87A14, $7BB12BAE, $0CB61B38, + $92D28E9B, $E5D5BE0D, $7CDCEFB7, $0BDBDF21, + $86D3D2D4, $F1D4E242, $68DDB3F8, $1FDA836E, + $81BE16CD, $F6B9265B, $6FB077E1, $18B74777, + $88085AE6, $FF0F6A70, $66063BCA, $11010B5C, + $8F659EFF, $F862AE69, $616BFFD3, $166CCF45, + $A00AE278, $D70DD2EE, $4E048354, $3903B3C2, + $A7672661, $D06016F7, $4969474D, $3E6E77DB, + $AED16A4A, $D9D65ADC, $40DF0B66, $37D83BF0, + $A9BCAE53, $DEBB9EC5, $47B2CF7F, $30B5FFE9, + $BDBDF21C, $CABAC28A, $53B39330, $24B4A3A6, + $BAD03605, $CDD70693, $54DE5729, $23D967BF, + $B3667A2E, $C4614AB8, $5D681B02, $2A6F2B94, + $B40BBE37, $C30C8EA1, $5A05DF1B, $2D02EF8D); +(* +function CRC32(CRC: LongWord; Data: Pointer; DataSize: LongWord): LongWord; assembler; +asm + AND EDX,EDX + JZ @Exit + AND ECX,ECX + JLE @Exit + PUSH EBX + PUSH EDI + XOR EBX,EBX + LEA EDI,CS:[OFFSET @CRC32] +@Start: MOV BL,AL + SHR EAX,8 + XOR BL,[EDX] + XOR EAX,[EDI + EBX * 4] + INC EDX + DEC ECX + JNZ @Start + POP EDI + POP EBX +@Exit: RET + DB 0, 0, 0, 0, 0 // Align Table +@CRC32: DD 000000000h, 077073096h, 0EE0E612Ch, 0990951BAh + DD 0076DC419h, 0706AF48Fh, 0E963A535h, 09E6495A3h + DD 00EDB8832h, 079DCB8A4h, 0E0D5E91Eh, 097D2D988h + DD 009B64C2Bh, 07EB17CBDh, 0E7B82D07h, 090BF1D91h + DD 01DB71064h, 06AB020F2h, 0F3B97148h, 084BE41DEh + DD 01ADAD47Dh, 06DDDE4EBh, 0F4D4B551h, 083D385C7h + DD 0136C9856h, 0646BA8C0h, 0FD62F97Ah, 08A65C9ECh + DD 014015C4Fh, 063066CD9h, 0FA0F3D63h, 08D080DF5h + DD 03B6E20C8h, 04C69105Eh, 0D56041E4h, 0A2677172h + DD 03C03E4D1h, 04B04D447h, 0D20D85FDh, 0A50AB56Bh + DD 035B5A8FAh, 042B2986Ch, 0DBBBC9D6h, 0ACBCF940h + DD 032D86CE3h, 045DF5C75h, 0DCD60DCFh, 0ABD13D59h + DD 026D930ACh, 051DE003Ah, 0C8D75180h, 0BFD06116h + DD 021B4F4B5h, 056B3C423h, 0CFBA9599h, 0B8BDA50Fh + DD 02802B89Eh, 05F058808h, 0C60CD9B2h, 0B10BE924h + DD 02F6F7C87h, 058684C11h, 0C1611DABh, 0B6662D3Dh + DD 076DC4190h, 001DB7106h, 098D220BCh, 0EFD5102Ah + DD 071B18589h, 006B6B51Fh, 09FBFE4A5h, 0E8B8D433h + DD 07807C9A2h, 00F00F934h, 09609A88Eh, 0E10E9818h + DD 07F6A0DBBh, 0086D3D2Dh, 091646C97h, 0E6635C01h + DD 06B6B51F4h, 01C6C6162h, 0856530D8h, 0F262004Eh + DD 06C0695EDh, 01B01A57Bh, 08208F4C1h, 0F50FC457h + DD 065B0D9C6h, 012B7E950h, 08BBEB8EAh, 0FCB9887Ch + DD 062DD1DDFh, 015DA2D49h, 08CD37CF3h, 0FBD44C65h + DD 04DB26158h, 03AB551CEh, 0A3BC0074h, 0D4BB30E2h + DD 04ADFA541h, 03DD895D7h, 0A4D1C46Dh, 0D3D6F4FBh + DD 04369E96Ah, 0346ED9FCh, 0AD678846h, 0DA60B8D0h + DD 044042D73h, 033031DE5h, 0AA0A4C5Fh, 0DD0D7CC9h + DD 05005713Ch, 0270241AAh, 0BE0B1010h, 0C90C2086h + DD 05768B525h, 0206F85B3h, 0B966D409h, 0CE61E49Fh + DD 05EDEF90Eh, 029D9C998h, 0B0D09822h, 0C7D7A8B4h + DD 059B33D17h, 02EB40D81h, 0B7BD5C3Bh, 0C0BA6CADh + DD 0EDB88320h, 09ABFB3B6h, 003B6E20Ch, 074B1D29Ah + DD 0EAD54739h, 09DD277AFh, 004DB2615h, 073DC1683h + DD 0E3630B12h, 094643B84h, 00D6D6A3Eh, 07A6A5AA8h + DD 0E40ECF0Bh, 09309FF9Dh, 00A00AE27h, 07D079EB1h + DD 0F00F9344h, 08708A3D2h, 01E01F268h, 06906C2FEh + DD 0F762575Dh, 0806567CBh, 0196C3671h, 06E6B06E7h + DD 0FED41B76h, 089D32BE0h, 010DA7A5Ah, 067DD4ACCh + DD 0F9B9DF6Fh, 08EBEEFF9h, 017B7BE43h, 060B08ED5h + DD 0D6D6A3E8h, 0A1D1937Eh, 038D8C2C4h, 04FDFF252h + DD 0D1BB67F1h, 0A6BC5767h, 03FB506DDh, 048B2364Bh + DD 0D80D2BDAh, 0AF0A1B4Ch, 036034AF6h, 041047A60h + DD 0DF60EFC3h, 0A867DF55h, 0316E8EEFh, 04669BE79h + DD 0CB61B38Ch, 0BC66831Ah, 0256FD2A0h, 05268E236h + DD 0CC0C7795h, 0BB0B4703h, 0220216B9h, 05505262Fh + DD 0C5BA3BBEh, 0B2BD0B28h, 02BB45A92h, 05CB36A04h + DD 0C2D7FFA7h, 0B5D0CF31h, 02CD99E8Bh, 05BDEAE1Dh + DD 09B64C2B0h, 0EC63F226h, 0756AA39Ch, 0026D930Ah + DD 09C0906A9h, 0EB0E363Fh, 072076785h, 005005713h + DD 095BF4A82h, 0E2B87A14h, 07BB12BAEh, 00CB61B38h + DD 092D28E9Bh, 0E5D5BE0Dh, 07CDCEFB7h, 00BDBDF21h + DD 086D3D2D4h, 0F1D4E242h, 068DDB3F8h, 01FDA836Eh + DD 081BE16CDh, 0F6B9265Bh, 06FB077E1h, 018B74777h + DD 088085AE6h, 0FF0F6A70h, 066063BCAh, 011010B5Ch + DD 08F659EFFh, 0F862AE69h, 0616BFFD3h, 0166CCF45h + DD 0A00AE278h, 0D70DD2EEh, 04E048354h, 03903B3C2h + DD 0A7672661h, 0D06016F7h, 04969474Dh, 03E6E77DBh + DD 0AED16A4Ah, 0D9D65ADCh, 040DF0B66h, 037D83BF0h + DD 0A9BCAE53h, 0DEBB9EC5h, 047B2CF7Fh, 030B5FFE9h + DD 0BDBDF21Ch, 0CABAC28Ah, 053B39330h, 024B4A3A6h + DD 0BAD03605h, 0CDD70693h, 054DE5729h, 023D967BFh + DD 0B3667A2Eh, 0C4614AB8h, 05D681B02h, 02A6F2B94h + DD 0B40BBE37h, 0C30C8EA1h, 05A05DF1Bh, 02D02EF8Dh + DD 074726F50h, 0736E6F69h, 0706F4320h, 067697279h + DD 028207468h, 031202963h, 020393939h, 048207962h + DD 06E656761h, 064655220h, 06E616D64h, 06FBBA36Eh +end; +*) + +procedure CalcCRC32(Data: Pointer; DataSize: DWord; var CRCValue: DWord); + // The following is a little cryptic (but executes very quickly). + // The algorithm is as follows: + // 1. exclusive-or the input byte with the low-order byte of + // the CRC register to get an INDEX + // 2. shift the CRC register eight bits to the right + // 3. exclusive-or the CRC register with the contents of Table[INDEX] + // 4. repeat steps 1 through 3 for all bytes +var + i: Integer; + q: ^Byte; +begin + q := Data; + if DataSize = 0 then + exit; + for i := 0 to DataSize - 1 do + begin + CRCValue := (CRCValue SHR 8) XOR CRC32Table[q^ XOR (CRCValue AND $000000FF)]; + Inc(q); + end; +end; + +{a Random generated Testvector 256bit - 32 Bytes, it's used for Self Test} +{ +function GetTestVector: PAnsiChar; assembler; register; +asm + MOV EAX,OFFSET @Vector + RET +@Vector: DB 030h,044h,0EDh,06Eh,045h,0A4h,096h,0F5h + DB 0F6h,035h,0A2h,0EBh,03Dh,01Ah,05Dh,0D6h + DB 0CBh,01Dh,009h,082h,02Dh,0BDh,0F5h,060h + DB 0C2h,0B8h,058h,0A1h,091h,0F9h,081h,0B1h + DB 000h,000h,000h,000h,000h,000h,000h,000h +end; +} +var + TableCRC: DWord; + +initialization + {this calculate a Checksum (CRC32) over the function CRC32 and the TestVector, + if InitTestIsOk = False any modification from Testvector or CRC32() detected, :-) } + TableCRC := $FFFFFFFF; + CalcCRC32(@CRC32Table[0], SizeOf(CRC32Table), TableCRC); + TableCRC := not TableCRC; + if TableCRC <> $6FCF9E13 then + raise Exception.Create('Bad case, wrong CRC table'); + +finalization +end. -- cgit v1.2.3