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原创作者:柔肠寸断 [3.A.S.T] http://www.3ast.com.cm, L' @: q8 B4 j. w( o( x Y# x
原始出处:http://www.3ast.com.cm. X8 U2 M- A# t( a) N+ \ i
; H8 r- z0 W- P2 {6 y0 G+ u看不懂的直接绕过7 y, {! y# e1 Y! f: }. T
加密前为:hwy123456
: B+ q: Y4 d3 j6 y8 J加密后为0F9C1C7A2EE76EBB5C1F4D7526CC4F883F4E0 ?+ y# k- p6 t
5 v- E; `& q. d
============================================
3 A/ F, M0 L3 f1 @) d2 _上面是当时自己校内的心情。现在已经解破出来了,分享给大家! _' a$ K. Q/ S7 J. E
也就不隐瞒大家什么了,这个是国内某知名大学的后台加密算法
/ \& O' s( R q, Y8 |; G/ A以下是RSA算法文件
9 x2 @2 |, \) g4 y3 C$ W) j6 o7 q7 ?! q$ _
文件名RSA.ASP
( m+ \+ Z; k- i$ h===============================================
# s* S) q; Z; b7 C+ L<%
4 K4 O3 [$ B( y8 Q$ q! FClass clsRSA 2 l9 C+ S0 R6 q% [" x9 N
Public PrivateKey 9 g, v- r* z( b! u) H" Q4 L
Public PublicKey
) v, o1 z ^) `- G$ x. n' VPublic Modulus 1 \4 @9 u2 O0 E5 \
Public Function Crypt(pLngMessage, pLngKey)
+ i8 u/ p( q9 o2 x+ R7 e8 b$ ~. H. [On Error Resume Next
. W& L3 t! x$ ?- f/ CDim lLngMod
" A( @1 T" a2 \; Q; {Dim lLngResult
, L( l3 X# F0 w. iDim lLngIndex " u6 @* v8 h |# ?. G+ ^ A
If pLngKey Mod 2 = 0 Then + Z" p. F! N. w' f. V
lLngResult = 1 7 D/ Q' |. x6 J8 a1 {( N" B
For lLngIndex = 1 To pLngKey / 2
% \$ |2 S. E! I4 K( r1 IlLngMod = (pLngMessage ^ 2) Mod Modulus
! }: I+ d3 T) S ?2 J' D' Mod may error on key generation
2 g l# m- h* d" j1 j; u3 v3 ?lLngResult = (lLngMod * lLngResult) Mod Modulus
; T" ~( w b9 R0 IIf Err Then Exit Function 9 Y8 c+ o; Z. ]- a% q* H$ Q' o
Next
; E; R7 X+ Z* d2 U3 w' R5 F+ U ~Else 0 D1 x: a( \5 Z9 J' d/ m& A
lLngResult = pLngMessage
$ {( U* P/ O: }1 E: i- j( u* Z5 EFor lLngIndex = 1 To pLngKey / 2
! r6 Y" u+ d9 x# OlLngMod = (pLngMessage ^ 2) Mod Modulus
# X) P; `1 O1 J9 oOn Error Resume Next
! H( e4 \$ f, D9 F- L$ x' Mod may error on key generation # _5 t! |" h# i: Z* ~% m0 c. J
lLngResult = (lLngMod * lLngResult) Mod Modulus 8 C) |! A5 h& y0 F( u* C
If Err Then Exit Function + K. E+ A' @2 X) i! s
Next % r+ N0 o1 k0 b4 Z3 G4 N" q# H, v
End If 6 k5 D! a' ^! x/ l
Crypt = lLngResult : _1 m2 v6 s- H! S7 {# W6 D1 r
End Function
1 m/ S0 P" W+ G5 G8 J7 }: X. `: R2 D
Public Function Encode(ByVal pStrMessage) 2 i2 I& {7 v! w
Dim lLngIndex k/ U9 Z+ M7 j0 A* @* M! s1 \% X
Dim lLngMaxIndex * `/ _3 S3 m' C5 ]/ q. v
Dim lBytAscii , B& L5 O7 M* E! _
Dim lLngEncrypted + d) E9 ^1 u& T7 }9 } o n
lLngMaxIndex = Len(pStrMessage)
- j+ I% N8 C2 J8 a) j) M- EIf lLngMaxIndex = 0 Then Exit Function
4 h' C5 S7 b' w+ l' I+ q- Y9 l( E' sFor lLngIndex = 1 To lLngMaxIndex 4 _2 k3 s$ o8 ?4 k3 o2 K7 ]) S
lBytAscii = Asc(Mid(pStrMessage, lLngIndex, 1)) W! c4 y+ _, }5 F
lLngEncrypted = Crypt(lBytAscii, PublicKey) + t! u2 Y/ T$ C- ~ R
Encode = Encode & NumberToHex(lLngEncrypted, 4)
$ e/ E1 ?5 y; j0 |5 J& N# \Next
8 B( Y8 l0 P: b1 j% P. t3 PEnd Function
) ]2 b1 h- I$ L) O1 R! ^Public Function Decode(ByVal pStrMessage) ' @- [2 e) V8 N
Dim lBytAscii
5 ^. R, F7 a( l+ [) E. p' e8 ?Dim lLngIndex
( I. v/ ]5 K. f6 zDim lLngMaxIndex
5 d+ A2 @0 p* V- A, kDim lLngEncryptedData , f& V# R- H: b0 k" L
Decode = "" 0 k/ H, @% ~9 ~: f
lLngMaxIndex = Len(pStrMessage)
4 t8 u9 H7 Q. w. ?" F+ c$ w7 S3 W8 VFor lLngIndex = 1 To lLngMaxIndex Step 4 5 x- s/ l- y; Y! D0 b6 q' R
lLngEncryptedData = HexToNumber(Mid(pStrMessage, lLngIndex, 4))
- ?. y( z8 r4 S; V9 G/ C1 ]6 I3 ZlBytAscii = Crypt(lLngEncryptedData, PrivateKey)
/ b) y2 w# [9 HDecode = Decode & Chr(lBytAscii) 7 _( I; T' h' m1 P0 ~7 `2 ~
Next
9 P/ P# @. ^+ w$ p4 j( X) X! fEnd Function
9 K. c* K9 M4 [* Z7 z; C& \Private Function NumberToHex(ByRef pLngNumber, ByRef pLngLength)
4 e. e, `( j! e& n$ o7 PNumberToHex = Right(String(pLngLength, "0") & Hex(pLngNumber), pLngLength)
( l; Q3 H# [6 QEnd Function
0 H: S q+ d" B Q3 H; QPrivate Function HexToNumber(ByRef pStrHex) 2 {& B0 `) A7 }% A( `8 z
HexToNumber = CLng("&h" & pStrHex)
3 x0 P: ~; a- p9 c4 |7 C- wEnd Function $ j2 s: w4 X/ j6 h9 i$ G! s: y: k
End Class
. A1 o; `9 N' J' |! h$ b8 \' vfunction Encryptstr(Message) . Y8 Q7 O) ]' E( C7 @
Dim LngKeyE ! p, z7 ?2 G1 h9 t4 m0 }4 c
Dim LngKeyD
$ H4 i [1 K: m3 _- fDim LngKeyN
5 _% D% R9 N5 r$ I* k1 k3 xDim StrMessage
7 U! T3 y, B1 rDim ObjRSA 5 U: X. G4 ~; i1 r
LngKeyE = "32823" * m7 V0 w; Z5 f# [
LngKeyD = "20643"
- z, h$ \+ x( Y3 WLngKeyN = "29893" + V" X' C; E: S, k
StrMessage = Message
$ Q4 y% n0 W) Y, _8 R# w: XSet ObjRSA = New clsRSA : T+ w W* z7 Q/ e: E& T1 ^
ObjRSA.PublicKey = LngKeyE
4 U* s, B3 p* b/ AObjRSA.Modulus = LngKeyN
/ r8 U) x! v& xEncryptstr = ObjRSA.Encode(StrMessage) 5 c8 I; |3 Z+ A* M$ R: g. O' g( }
Set ObjRSA = Nothing
: ^' V+ g$ ~' |$ ?end function( j$ r: ?+ t/ J& H0 }& _
Function Decryptstr(Message) 6 g% D2 G6 o f! u; F5 V0 Q2 E8 p. [
Dim LngKeyE
& T; d' E) P6 c, U1 hDim LngKeyD
& j" H- A8 |9 T7 m, a* _Dim LngKeyN
7 Y; A' B5 `8 C$ G1 [; NDim StrMessage # O0 r$ U, V: S( @! w
Dim ObjRSA 7 [' l: q$ A. T: y" {
LngKeyE = "32823" 0 X3 }+ T0 y; k5 e6 b4 b1 C* {% l+ R
LngKeyD = "20643" 7 ]0 d3 u* Y' M
LngKeyN = "29893"
% r. z5 c \0 q3 ]( AStrMessage = Message
* D- ~$ z. [. }6 dSet ObjRSA = New clsRSA
) k6 U4 M# i: @+ uObjRSA.PrivateKey =LngKeyD
* \4 y2 K2 f7 w4 V6 S! F5 WObjRSA.Modulus=LngKeyN 8 p) T' m* s* k2 c3 C/ Y
decryptstr=ObjRSA.Decode(StrMessage) 4 C/ i5 e4 r- r; w
Set ObjRSA = Nothing
8 Y% ]$ @* v/ h. N/ }; vend function k8 o2 W- m: U5 F% V
%>* t3 o/ w/ ~6 O- L/ d5 `$ p
===============================================- z5 F- S+ Z4 Y$ @, }* t" J6 F
- }- v% w8 w2 Y- i' s还有一个用于测试这段代码的test.asp9 n P) E. e" g6 u$ k4 w; Z
有兴趣的自己搭建个IIS测试下" G) d* k' j& _7 Q) \; g
<!--#INCLUDE FILE="RSA.asp"--> 5 J9 ?1 v, d" I' E
<%
9 U9 t& H" z+ k, |& Q% N2 `9 S$ ufunction Encryptstr(Message) 8 t) X: _$ O, l8 `% ~; {6 U0 S. ~
Dim LngKeyE
) a' ]( A9 Z) B: E! K& ?7 jDim LngKeyD . q$ ?9 G3 T+ e6 l. E1 o
Dim LngKeyN
6 x8 A; s% I7 Y- n0 l( WDim StrMessage
; z% ?/ p. g9 J1 V6 @( d9 C! QDim ObjRSA
: v% e b" F2 H9 WLngKeyE = "32823"
6 T, l+ Z6 N' k: k$ L& g; f% A6 F6 V8 c8 QLngKeyD = "20643"
4 J8 U$ M- }8 b5 h( H/ MLngKeyN = "29893" 7 K$ r, g% L9 l- j* e* W
StrMessage = Message ; }' W8 v- u& a& a; I! N
Set ObjRSA = New clsRSA
/ c5 F% l+ q8 ?8 N; h+ m% WObjRSA.PublicKey = LngKeyE
; [7 p( A0 }' C9 `% D; P4 I dObjRSA.Modulus = LngKeyN 0 z( [& L+ [$ p: Q' r4 C- k3 Q, n( c
Encryptstr = ObjRSA.Encode(StrMessage)
. g7 t* x0 Q4 O4 |9 eSet ObjRSA = Nothing i1 ~; _9 a7 o% S- k1 |' a
end function 4 }, K/ i9 C W- _* y* Q7 g
function decryptstr(Message) & B0 O0 Q2 ?3 B: a( q
Dim LngKeyE }5 S6 o6 q2 B& v, L9 h" [
Dim LngKeyD " ]8 f2 V4 [7 H6 g9 a
Dim LngKeyN
3 H7 A: e' _* H% q. oDim StrMessage 4 b w6 H1 E- y3 X C
Dim ObjRSA 0 l9 `& r; r; F* G: s* B
LngKeyE = "32823" ; V0 C) X: i. R2 A! h% a
LngKeyD = "20643"
. G7 z: c; n. ~7 |+ W: l. rLngKeyN = "29893"
7 O, _/ O: O6 N( T( `StrMessage = Message
4 [) `8 ~- V9 T: ]Set ObjRSA = New clsRSA
( K9 q8 q& X5 M7 C) y9 K2 I% FObjRSA.PrivateKey =LngKeyD
; n, j* ^1 m2 q) ^# v1 HObjRSA.Modulus=LngKeyN
4 `8 A2 n F7 u$ p% ^( ^0 Edecryptstr=ObjRSA.Decode(StrMessage) - r* N5 s& Y6 W# I5 z# p9 L
Set ObjRSA = Nothing ' I; L3 ]5 v! j! H$ K6 J
end function # |9 h4 ^4 {7 c+ b/ R' j
dim last,first ! i4 V' K) L2 k+ z9 _) v
first="!@#$%^&*()" 8 N$ U8 R/ ]' \. L7 b% ~7 t+ r6 y
Response.Write "加密前为:"&first
3 |! G5 }, B2 Hlast=Encryptstr(first) * u7 ]* V$ O/ h
Response.Write "加密后为"&last ! p/ G5 T+ J9 a5 j
Response.Write "解密后为" &decryptstr(last)
0 r) C6 }2 G7 F6 C3 P( z%> ==============================================& c2 t6 m3 k- H6 o) t* F* L$ g' H
剩下的就是字符的对照表了7 |% p9 J% Y5 @' y: M
===================字符集================6 b% ^7 n! J- D! f1 V7 d
1_____6EBB
4 B, N, H0 m- c- l2 e2_____5C1F
3 }# i! T5 W+ o/ L3_____4D758 O9 e3 k: h1 v8 p5 ]
4_____26CC
% r$ I( b" O' [* e0 `( P5_____4F88' ^4 c6 l ]& D, j
6_____3F4E
$ l1 D/ O6 s) v8 T7 O. _( Z" ~. I7_____0A9D
@! M! a. |# P# l9 \8_____1A1C" H& r/ Q9 s0 _! j- O
9_____6D20
, c! e0 m. h8 A! D4 f; S# C0_____1089
7 P+ V. Z* C, @# _$ pa_____0F3E8 a1 A8 Q8 o9 w4 a- a
b_____3159
4 c3 x, x1 Q0 z. b4 |c_____3517
8 G. m1 Q' i1 N1 yd_____419C* K1 M, d5 J Y7 c6 A" b* `
e_____615C
5 m! Z$ j8 X5 A) L, Vf_____556F
], y2 k% `) x/ l3 Z5 wg_____2B7F
: O4 r: ~6 G# K& \; U. T# M' v6 ch_____0F9C
/ U8 b( U6 p. G' J `# X1 A" G- Wi_____00FA
+ `2 c4 e" N& ]9 ?7 G) i6 d. M" bj_____5A50% c# B7 K9 w7 Y6 @9 D: V
k_____2850# x, n/ V; z/ ^9 N! i2 X+ L/ x J
l_____3E7B/ g7 J2 [7 b% K) f
m_____71C5) @$ {7 p: ^* \# s9 B7 ?
n_____1FC8% g0 l1 f! \& e! D% ]$ |
o_____74C1
( J: ?8 L" k( y9 a5 ` [2 hp_____5FB8
/ b! a0 I) } x3 M/ ]q_____60859 K) S6 e7 h- o/ |
r_____3AC40 B* E$ M; V# o: a& k5 @
s_____2F50
" w; H' P( W; d0 ]0 D3 |t_____36F8& W& i6 y3 x3 Y
u_____7010
. M# T' c6 l2 a5 d5 Gv_____0B42
' y! w" c* u, B. g6 U* z3 M6 jw_____1C7A
2 ]7 i# E, x! Z; V ux_____16F8
& Q Y% d) q. M- ?3 s, Dy_____2EE7
' F3 A9 |8 \4 v8 K. b1 K# Wz_____5CF3
0 k0 T0 o# m6 g) H! ~# A!_____62337 B- J# M/ \) b
@_____3A45/ g0 f3 p( W8 D) R1 Z; B, \" N3 C
#_____2291. g8 Y6 N, [" M5 Y
$_____5D5C
h1 T9 y* B# Z0 I: b3 H%_____09B9, Y* C5 p* [" f; Y, [' v
^_____43EA
: ~/ H" l- F+ w) M1 p% I&_____62B9
! ]& A, _4 _/ @; \" Y*_____6301
" |+ a$ g3 P' M2 }( L(_____4659
' s4 e. `+ p6 a8 y/ l7 K+ d' @& A)_____5C82 |
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