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总结一些加密算法 _加密解密_网络安全_
2023-05-24
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简介 总结一些加密算法 _加密解密_网络安全_
有一些是之前学破解写注册机时写的，一些是我改写某些兄弟的代码来的，写的不好多多指教：
{=======================================================
学习破解，写注册机的一些函数集
By：黑夜彩虹
========================================================}
function wzwgp(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttostr(sum);
end;
function ASCII10ADD(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttostr(sum);
end;
function ASCII16ADD(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttohex(sum,2);
end;
function float( a:integer ):string;
var i:integer;
s:Extended;
begin
s:=0;
i:=1;
for i:=1 to a do
begin
s:=s 1/i;
end;
result:=FloatToStr(s);
end;
function float2( a:integer ):string; //浮点数学运算
var i:integer;
s:Extended;
begin
s:=0;
i:=1;
for i:=1 to a do
begin
if i mod 2 <>0 then
s:=s 1/i
else
s:=s - 1/i;
end;
result:=FloatToStr(s);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
edit2.text:=float2(100);
end;
{ }
function StrToBack(s: string): string; //将字符串倒转过来
var i:integer;
begin
for i:=1 to length(s) do
begin
result :=s[i] result;
end;
end;
{ }
function mdistr(str:string;int:integer):string; //取字符串的中间部份
begin
if intresult:=copy(str,length(str) div 2,int)
else
result:=copy(str,Length(str)div 2-(int-Length(str)div 2),int);
end;
{ }
function StrToASCII16(s: string): string; //字符串转换ascii码16进制
var i:integer;
begin
for i:=1 to length(s) do
begin
result := result IntToHex(ord(s[i]),2);
end;
end;
{ }
function StrToASCII10(s: string): string; //字符串转换ascii码10进制
var i:integer;
begin
for i:=1 to length(s) do
begin
result:= result inttostr(ord(s[i]));
end;
end;
{ }
function StrToASCII16(s: string): string; //字符串转换ascii码16进制，
var i:integer; // 如：黑夜彩虹＝$BA,$DA,$D2,$B9,$B2,$CA,$BA,$E7
begin
for i:=1 to length(s) do
begin
result := result '$' IntToHex(ord(s[i]),2) ',';
end;
Result:=copy(Result,0,Length(result)-1);
end;
{ }
function DoubleStr(Str: string): string; //取字符串偶位数字符
var
i: Integer;
begin
Result := '';
for i := 2 to Length(Str) do
if i mod 2 = 0 then
Result := Result Str[i];
end;
{ }
function WideStr(str:string):String; //取出字符串中的汉字
var I: Integer;
begin
for I := 1 to Length(WideString(Str)) do
if Length(string(WideString(Str)[I])) = 2 then
result:= result WideString(Str)[I];
end;
{ }
function StrSubCount(const Source,Sub:string):integer; //判断某字符在字符串中的个数
var Buf:string;
Len,i:integer;
begin
Result:=0;
Buf:=Source;
i:=Pos(Sub, Buf);
Len:=Length(Sub);
while i <> 0 do
begin
Inc(Result);
Delete(Buf,1,i Len-1);
i:=Pos(Sub,Buf);
end;
end;
{ }
function ByteToHex(Src: Byte): String;
begin
SetLength(Result, 2);
asm
MOV EDI, [Result]
MOV EDI, [EDI]
MOV AL, Src
MOV AH, AL // Save to AH
SHR AL, 4 // Output High 4 Bits
ADD AL, '0'
CMP AL, '9'
JBE @@OutCharLo
ADD AL, 'A'-'9'-1
@@OutCharLo:
AND AH, $f
ADD AH, '0'
CMP AH, '9'
JBE @@OutChar
ADD AH, 'A'-'9'-1
@@OutChar:
STOSW
end;
end;
{ }
function ShiftStr(str1,str2:string):string; //移位字符串
var i:integer;
begin
Result:='';
for i:=1 to length(str1) do
begin
Result:=Result str1[i] str2[i];
end;
end;
function SiftStr(Str: string): string; //过滤字符串
var i,j:integer;
begin
Result:='';
j:=Length(str);
for i:=0 to j do
begin
if str[i] in ['0'..'9','a'..'f','A'..'F'] then
Result:=Result str[i];
end;
end;
function IsNum(str:string;int,int2:integer): string;
var i:integer;
begin
for i:=1 to length(str) do
begin
result := inttostr((StrToInt('$' str[i]) or int) mod int2) result;
end;
end;
{ }
function OpeateStr(const s :string): string; //字符逐位 xor 运算
const
snLen = 5 ;
sn:array[1..snLen] of Integer =($0D, $01, $14, $05,$02);
var
i,n: integer;
begin
setLength(result,Length(s));
for i :=1 to Length(s) do begin
n := i mod snLen ;
if n = 0 then
n := 5 ;
result[i] := char(ord(s[i]) xor sn[n]);
end;
end;
{ }
function StrToEncrypt(Str,ID,Pass:string): string; //销售王进销存_keygen算法
var
username: string;
a, b, c_str, c_hex, d, e, f: string;
I, a_len: Integer;
begin
username:=str;
a:=id str;
//b:= 'MraketSoft62095231';
b:=pass;
a_len := Length(a);
c_str := '';
c_hex := '';
for I := 1 to a_len do
begin
c_hex := c_hex IntToHex(Byte(a[I]) xor Byte(b[I mod Length(b)]), 2) ' ';
c_str := c_str Chr(Byte(a[I]) xor Byte(b[I mod Length(b)]));
end;
d := '';
for I := 1 to Length(c_str) do
begin
if Byte(c_str[I]) in [$01..$09,$0A..$0F] then
d := d QuotedStr('#$' IntToHex(Byte(c_str[I]), 1))
else d := d c_str[I];
end;
d := '''' d '''';
e := '';
for I := 1 to Length(d) do
begin
if d[I] in ['0'..'9','a'..'z','A'..'Z'] then e := e d[I];
end;
f := '';
for I := 1 to Length(e) do
begin
f := f e[I];
if (I mod 4 = 0)and(I f := f '-';
end;
Result:=f;
end;
{ }
function myStrtoHex(s: string): string; //原字符串转16进制字符串
var tmpstr:string;
i:integer;
begin
tmpstr := '';
for i:=1 to length(s) do
begin
tmpstr := tmpstr inttoHex(ord(s[i]),2);
end;
result := tmpstr;
end;
function myHextoStr(S: string): string; //16进制字符串转原字符串
var hexS,tmpstr:string;
i:integer;
a:byte;
begin
hexS :=s;//应该是该字符串
if length(hexS) mod 2=1 then
begin
hexS:=hexS '0';
end;
tmpstr:='';
for i:=1 to (length(hexS) div 2) do
begin
a:=strtoint('$' hexS[2*i-1] hexS[2*i]);
tmpstr := tmpstr chr(a);
end;
result :=tmpstr;
end;
function encryptstr(const s:string; skey:string):string; //异或运算加密
var
i,j: integer;
hexS,hexskey,midS,tmpstr:string;
a,b,c:byte;
begin
hexS :=myStrtoHex(s);
hexskey:=myStrtoHex(skey);
midS :=hexS;
for i:=1 to (length(hexskey) div 2) do
begin
if i<>1 then midS:= tmpstr;
tmpstr:='';
for j:=1 to (length(midS) div 2) do
begin
a:=strtoint('$' midS[2*j-1] midS[2*j]);
b:=strtoint('$' hexskey[2*i-1] hexskey[2*i]);
c:=a xor b;
tmpstr := tmpstr myStrtoHex(chr(c));
end;
end;
result := tmpstr;
end;
function decryptstr(const s:string; skey:string):string; //异或运算解密
var
i,j: integer;
hexS,hexskey,midS,tmpstr:string;
a,b,c:byte;
begin
hexS :=s;//应该是该字符串
if length(hexS) mod 2=1 then
begin
showmessage('密文错误！');
exit;
end;
hexskey:=myStrtoHex(skey);
tmpstr :=hexS;
midS :=hexS;
for i:=(length(hexskey) div 2) downto 1 do
begin
if i<>(length(hexskey) div 2) then midS:= tmpstr;
tmpstr:='';
for j:=1 to (length(midS) div 2) do
begin
a:=strtoint('$' midS[2*j-1] midS[2*j]);
b:=strtoint('$' hexskey[2*i-1] hexskey[2*i]);
c:=a xor b;
tmpstr := tmpstr myStrtoHex(chr(c));
end;
end;
result := myHextoStr(tmpstr);
end;
//调用
Edit2.Text :=encryptstr(Edit1.Text,Editkey.Text);
{ }
// XOR 加密/解密
function XorEncDec(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i]) xor Key);
end;
//加法加密
function AddEnc(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i]) Key);
end;
//加法解密
function AddDec(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i])-Key);
end;
其中XorEncDec的加密/解密均为同一个过程，而加法加密、解密则需要两个过程配套使用。
procedure TForm1.Button1Click(Sender: TObject);
begin
Edit2.Text:=XorEncDec(Edit1.Text,123); //加密（Edit1中存放明文，Edit2存放密文）
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit1.Text:=XorEncDec(Edit2.Text,123); //解密（Edit2存放密文，Edit1中存放解密的明文）
end;
//====================================================
//题目：有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？
function permutation( int:integer ):string;
var
i,j,k:integer;
begin
for i:=1 to int do
for j:=1 to int do
for k:=1 to int do
begin
if (i<>j) and (i<>k) and (j<>k)then
result:=result inttostr(i) inttostr(j) inttostr(k) #13 #10;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Memo1.Clear;
Memo1.Lines.Add(permutation(4));
label1.Caption:=inttostr(memo1.Lines.Count);
end;
//=============================收集函数
function acafeel(Name:string):string;
var
strA,strB, strC : string;
sum, pos : integer;
begin
if Name ='' then exit;
for pos := 1 to length(Name) do
if (ord(Name[pos]) < $20) or (ord(Name[pos]) > $7E) then
begin
showmessage('请
{=======================================================
学习破解，写注册机的一些函数集
By：黑夜彩虹
========================================================}
function wzwgp(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttostr(sum);
end;
function ASCII10ADD(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttostr(sum);
end;
function ASCII16ADD(s: string): string; //取累加值
var i,sum:integer;
begin
sum:=0; for i:=1 to length(s) do
begin
sum:=sum ord(s[i]);
end;
Result :=inttohex(sum,2);
end;
function float( a:integer ):string;
var i:integer;
s:Extended;
begin
s:=0;
i:=1;
for i:=1 to a do
begin
s:=s 1/i;
end;
result:=FloatToStr(s);
end;
function float2( a:integer ):string; //浮点数学运算
var i:integer;
s:Extended;
begin
s:=0;
i:=1;
for i:=1 to a do
begin
if i mod 2 <>0 then
s:=s 1/i
else
s:=s - 1/i;
end;
result:=FloatToStr(s);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
edit2.text:=float2(100);
end;
{ }
function StrToBack(s: string): string; //将字符串倒转过来
var i:integer;
begin
for i:=1 to length(s) do
begin
result :=s[i] result;
end;
end;
{ }
function mdistr(str:string;int:integer):string; //取字符串的中间部份
begin
if int
else
result:=copy(str,Length(str)div 2-(int-Length(str)div 2),int);
end;
{ }
function StrToASCII16(s: string): string; //字符串转换ascii码16进制
var i:integer;
begin
for i:=1 to length(s) do
begin
result := result IntToHex(ord(s[i]),2);
end;
end;
{ }
function StrToASCII10(s: string): string; //字符串转换ascii码10进制
var i:integer;
begin
for i:=1 to length(s) do
begin
result:= result inttostr(ord(s[i]));
end;
end;
{ }
function StrToASCII16(s: string): string; //字符串转换ascii码16进制，
var i:integer; // 如：黑夜彩虹＝$BA,$DA,$D2,$B9,$B2,$CA,$BA,$E7
begin
for i:=1 to length(s) do
begin
result := result '$' IntToHex(ord(s[i]),2) ',';
end;
Result:=copy(Result,0,Length(result)-1);
end;
{ }
function DoubleStr(Str: string): string; //取字符串偶位数字符
var
i: Integer;
begin
Result := '';
for i := 2 to Length(Str) do
if i mod 2 = 0 then
Result := Result Str[i];
end;
{ }
function WideStr(str:string):String; //取出字符串中的汉字
var I: Integer;
begin
for I := 1 to Length(WideString(Str)) do
if Length(string(WideString(Str)[I])) = 2 then
result:= result WideString(Str)[I];
end;
{ }
function StrSubCount(const Source,Sub:string):integer; //判断某字符在字符串中的个数
var Buf:string;
Len,i:integer;
begin
Result:=0;
Buf:=Source;
i:=Pos(Sub, Buf);
Len:=Length(Sub);
while i <> 0 do
begin
Inc(Result);
Delete(Buf,1,i Len-1);
i:=Pos(Sub,Buf);
end;
end;
{ }
function ByteToHex(Src: Byte): String;
begin
SetLength(Result, 2);
asm
MOV EDI, [Result]
MOV EDI, [EDI]
MOV AL, Src
MOV AH, AL // Save to AH
SHR AL, 4 // Output High 4 Bits
ADD AL, '0'
CMP AL, '9'
JBE @@OutCharLo
ADD AL, 'A'-'9'-1
@@OutCharLo:
AND AH, $f
ADD AH, '0'
CMP AH, '9'
JBE @@OutChar
ADD AH, 'A'-'9'-1
@@OutChar:
STOSW
end;
end;
{ }
function ShiftStr(str1,str2:string):string; //移位字符串
var i:integer;
begin
Result:='';
for i:=1 to length(str1) do
begin
Result:=Result str1[i] str2[i];
end;
end;
function SiftStr(Str: string): string; //过滤字符串
var i,j:integer;
begin
Result:='';
j:=Length(str);
for i:=0 to j do
begin
if str[i] in ['0'..'9','a'..'f','A'..'F'] then
Result:=Result str[i];
end;
end;
function IsNum(str:string;int,int2:integer): string;
var i:integer;
begin
for i:=1 to length(str) do
begin
result := inttostr((StrToInt('$' str[i]) or int) mod int2) result;
end;
end;
{ }
function OpeateStr(const s :string): string; //字符逐位 xor 运算
const
snLen = 5 ;
sn:array[1..snLen] of Integer =($0D, $01, $14, $05,$02);
var
i,n: integer;
begin
setLength(result,Length(s));
for i :=1 to Length(s) do begin
n := i mod snLen ;
if n = 0 then
n := 5 ;
result[i] := char(ord(s[i]) xor sn[n]);
end;
end;
{ }
function StrToEncrypt(Str,ID,Pass:string): string; //销售王进销存_keygen算法
var
username: string;
a, b, c_str, c_hex, d, e, f: string;
I, a_len: Integer;
begin
username:=str;
a:=id str;
//b:= 'MraketSoft62095231';
b:=pass;
a_len := Length(a);
c_str := '';
c_hex := '';
for I := 1 to a_len do
begin
c_hex := c_hex IntToHex(Byte(a[I]) xor Byte(b[I mod Length(b)]), 2) ' ';
c_str := c_str Chr(Byte(a[I]) xor Byte(b[I mod Length(b)]));
end;
d := '';
for I := 1 to Length(c_str) do
begin
if Byte(c_str[I]) in [$01..$09,$0A..$0F] then
d := d QuotedStr('#$' IntToHex(Byte(c_str[I]), 1))
else d := d c_str[I];
end;
d := '''' d '''';
e := '';
for I := 1 to Length(d) do
begin
if d[I] in ['0'..'9','a'..'z','A'..'Z'] then e := e d[I];
end;
f := '';
for I := 1 to Length(e) do
begin
f := f e[I];
if (I mod 4 = 0)and(I
end;
Result:=f;
end;
{ }
function myStrtoHex(s: string): string; //原字符串转16进制字符串
var tmpstr:string;
i:integer;
begin
tmpstr := '';
for i:=1 to length(s) do
begin
tmpstr := tmpstr inttoHex(ord(s[i]),2);
end;
result := tmpstr;
end;
function myHextoStr(S: string): string; //16进制字符串转原字符串
var hexS,tmpstr:string;
i:integer;
a:byte;
begin
hexS :=s;//应该是该字符串
if length(hexS) mod 2=1 then
begin
hexS:=hexS '0';
end;
tmpstr:='';
for i:=1 to (length(hexS) div 2) do
begin
a:=strtoint('$' hexS[2*i-1] hexS[2*i]);
tmpstr := tmpstr chr(a);
end;
result :=tmpstr;
end;
function encryptstr(const s:string; skey:string):string; //异或运算加密
var
i,j: integer;
hexS,hexskey,midS,tmpstr:string;
a,b,c:byte;
begin
hexS :=myStrtoHex(s);
hexskey:=myStrtoHex(skey);
midS :=hexS;
for i:=1 to (length(hexskey) div 2) do
begin
if i<>1 then midS:= tmpstr;
tmpstr:='';
for j:=1 to (length(midS) div 2) do
begin
a:=strtoint('$' midS[2*j-1] midS[2*j]);
b:=strtoint('$' hexskey[2*i-1] hexskey[2*i]);
c:=a xor b;
tmpstr := tmpstr myStrtoHex(chr(c));
end;
end;
result := tmpstr;
end;
function decryptstr(const s:string; skey:string):string; //异或运算解密
var
i,j: integer;
hexS,hexskey,midS,tmpstr:string;
a,b,c:byte;
begin
hexS :=s;//应该是该字符串
if length(hexS) mod 2=1 then
begin
showmessage('密文错误！');
exit;
end;
hexskey:=myStrtoHex(skey);
tmpstr :=hexS;
midS :=hexS;
for i:=(length(hexskey) div 2) downto 1 do
begin
if i<>(length(hexskey) div 2) then midS:= tmpstr;
tmpstr:='';
for j:=1 to (length(midS) div 2) do
begin
a:=strtoint('$' midS[2*j-1] midS[2*j]);
b:=strtoint('$' hexskey[2*i-1] hexskey[2*i]);
c:=a xor b;
tmpstr := tmpstr myStrtoHex(chr(c));
end;
end;
result := myHextoStr(tmpstr);
end;
//调用
Edit2.Text :=encryptstr(Edit1.Text,Editkey.Text);
{ }
// XOR 加密/解密
function XorEncDec(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i]) xor Key);
end;
//加法加密
function AddEnc(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i]) Key);
end;
//加法解密
function AddDec(AStr:String;Key:Byte):String;
var
i,n:Integer;
begin
n:=Length(AStr);
SetLength(Result,n);
for i:=1 to n do
Result[i]:=Char(Byte(AStr[i])-Key);
end;
其中XorEncDec的加密/解密均为同一个过程，而加法加密、解密则需要两个过程配套使用。
procedure TForm1.Button1Click(Sender: TObject);
begin
Edit2.Text:=XorEncDec(Edit1.Text,123); //加密（Edit1中存放明文，Edit2存放密文）
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit1.Text:=XorEncDec(Edit2.Text,123); //解密（Edit2存放密文，Edit1中存放解密的明文）
end;
//====================================================
//题目：有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？
function permutation( int:integer ):string;
var
i,j,k:integer;
begin
for i:=1 to int do
for j:=1 to int do
for k:=1 to int do
begin
if (i<>j) and (i<>k) and (j<>k)then
result:=result inttostr(i) inttostr(j) inttostr(k) #13 #10;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Memo1.Clear;
Memo1.Lines.Add(permutation(4));
label1.Caption:=inttostr(memo1.Lines.Count);
end;
//=============================收集函数
function acafeel(Name:string):string;
var
strA,strB, strC : string;
sum, pos : integer;
begin
if Name ='' then exit;
for pos := 1 to length(Name) do
if (ord(Name[pos]) < $20) or (ord(Name[pos]) > $7E) then
begin
showmessage('请
