腾讯web产品通用的加密算法-白红宇

腾讯web产品通用的加密算法

阅读量：5833 次

发布时间：2019-06-18

本文共 7650 字，大约阅读时间需要 25 分钟。

class EncodePasswd(object):

def __init__(self, passwd=None, verifycode=None):

self.passwd = passwd

self.verifycode = verifycode

self.hexcase = 1

self.b64pad = ''

self.chrsz = 8

self.mode = 32

def str2binl(self, D):

C = []

A = (1<<self.chrsz) - 1

for B in range(0, len(D)*self.chrsz, self.chrsz):

if len(C) == (B>>5): C.append(0)

C[B>>5] |= (ord(D[B/self.chrsz])&A)<<(B%32)

return C

def binl2hex(self, C):

B = "0123456789abcdef"

if self.hexcase:

B = "0123456789ABCDEF"

D = ''

for A in range(0, len(C)*4, 1):

D += B[(C[A>>2]>>((A%4)*8+4))&15] + B[(C[A>>2]>>((A%4)*8))&15]

return D

def md5(self, A):

return self.hex_md5(A)

def hex_md5(self, A):

return self.binl2hex(self.core_md5(self.str2binl(A), len(A)*self.chrsz))

def str_md5(self, A):

return self.binl2str(self.core_md5(self.str2binl(A), len(A)*self.chrsz))

def hex_hmac_md5(self, A, B):

return self.binl2hex(self.core_hmac_md5(A, B))

def b64_hmac_md5(self, A, B):

return binl2b64(core_hmac_md5(A, B))

def str_hmac_md5(self, A, B):

return self.binl2str(self.core_hmac_md5(A, B))

def md5_vm_test(self):

return self.hex_md5('abc') == '900150983cd24fb0d6963f7d28e17f72'

# this is equvalent of >>> in js

def rsl(self, A, B):

return (A & 0xFFFFFFFFL) >> B

def jsArraySet(self, list, index, value):

if index < 0: return

if len(list) > index:

list[index] = value

else:

for i in range(index-len(list)):

list.append(0)

list.append(value)

def jsArrayGet(self, list, index):

if len(list) > index:

return list[index]

else:

return 0

def core_md5(self, K, F):

#K[F>>5] |= 128<<((F)%32)

self.jsArraySet(K, F>>5, self.jsArrayGet(K, F>>5)|(128<<(F%32)))

#K[(self.rsl(F+64, 9)<<4)+14] = F

self.jsArraySet(K, (self.rsl(F+64, 9)<<4)+14, F)

J=1732584193;

I=-271733879;

H=-1732584194;

G=271733878;

for C in range(0, len(K), 16):

E=J;

D=I;

B=H;

A=G;

J=self.md5_ff(J,I,H,G,self.jsArrayGet(K, C+0),7,-680876936);

G=self.md5_ff(G,J,I,H,self.jsArrayGet(K, C+1),12,-389564586);

H=self.md5_ff(H,G,J,I,self.jsArrayGet(K, C+2),17,606105819);

I=self.md5_ff(I,H,G,J,self.jsArrayGet(K, C+3),22,-1044525330);

J=self.md5_ff(J,I,H,G,self.jsArrayGet(K, C+4),7,-176418897);

G=self.md5_ff(G,J,I,H,self.jsArrayGet(K, C+5),12,1200080426);

H=self.md5_ff(H,G,J,I,self.jsArrayGet(K, C+6),17,-1473231341);

I=self.md5_ff(I,H,G,J,self.jsArrayGet(K, C+7),22,-45705983);

J=self.md5_ff(J,I,H,G,self.jsArrayGet(K, C+8),7,1770035416);

G=self.md5_ff(G,J,I,H,self.jsArrayGet(K, C+9),12,-1958414417);

H=self.md5_ff(H,G,J,I,self.jsArrayGet(K, C+10),17,-42063);

I=self.md5_ff(I,H,G,J,self.jsArrayGet(K, C+11),22,-1990404162);

J=self.md5_ff(J,I,H,G,self.jsArrayGet(K, C+12),7,1804603682);

G=self.md5_ff(G,J,I,H,self.jsArrayGet(K, C+13),12,-40341101);

H=self.md5_ff(H,G,J,I,self.jsArrayGet(K, C+14),17,-1502002290);

I=self.md5_ff(I,H,G,J,self.jsArrayGet(K, C+15),22,1236535329);

J=self.md5_gg(J,I,H,G,self.jsArrayGet(K, C+1),5,-165796510);

G=self.md5_gg(G,J,I,H,self.jsArrayGet(K, C+6),9,-1069501632);

H=self.md5_gg(H,G,J,I,self.jsArrayGet(K, C+11),14,643717713);

I=self.md5_gg(I,H,G,J,self.jsArrayGet(K, C+0),20,-373897302);

J=self.md5_gg(J,I,H,G,self.jsArrayGet(K, C+5),5,-701558691);

G=self.md5_gg(G,J,I,H,self.jsArrayGet(K, C+10),9,38016083);

H=self.md5_gg(H,G,J,I,self.jsArrayGet(K, C+15),14,-660478335);

I=self.md5_gg(I,H,G,J,self.jsArrayGet(K, C+4),20,-405537848);

J=self.md5_gg(J,I,H,G,self.jsArrayGet(K, C+9),5,568446438);

G=self.md5_gg(G,J,I,H,self.jsArrayGet(K, C+14),9,-1019803690);

H=self.md5_gg(H,G,J,I,self.jsArrayGet(K, C+3),14,-187363961);

I=self.md5_gg(I,H,G,J,self.jsArrayGet(K, C+8),20,1163531501);

J=self.md5_gg(J,I,H,G,self.jsArrayGet(K, C+13),5,-1444681467);

G=self.md5_gg(G,J,I,H,self.jsArrayGet(K, C+2),9,-51403784);

H=self.md5_gg(H,G,J,I,self.jsArrayGet(K, C+7),14,1735328473);

I=self.md5_gg(I,H,G,J,self.jsArrayGet(K, C+12),20,-1926607734);

J=self.md5_hh(J,I,H,G,self.jsArrayGet(K, C+5),4,-378558);

G=self.md5_hh(G,J,I,H,self.jsArrayGet(K, C+8),11,-2022574463);

H=self.md5_hh(H,G,J,I,self.jsArrayGet(K, C+11),16,1839030562);

I=self.md5_hh(I,H,G,J,self.jsArrayGet(K, C+14),23,-35309556);

J=self.md5_hh(J,I,H,G,self.jsArrayGet(K, C+1),4,-1530992060);

G=self.md5_hh(G,J,I,H,self.jsArrayGet(K, C+4),11,1272893353);

H=self.md5_hh(H,G,J,I,self.jsArrayGet(K, C+7),16,-155497632);

I=self.md5_hh(I,H,G,J,self.jsArrayGet(K, C+10),23,-1094730640);

J=self.md5_hh(J,I,H,G,self.jsArrayGet(K, C+13),4,681279174);

G=self.md5_hh(G,J,I,H,self.jsArrayGet(K, C+0),11,-358537222);

H=self.md5_hh(H,G,J,I,self.jsArrayGet(K, C+3),16,-722521979);

I=self.md5_hh(I,H,G,J,self.jsArrayGet(K, C+6),23,76029189);

J=self.md5_hh(J,I,H,G,self.jsArrayGet(K, C+9),4,-640364487);

G=self.md5_hh(G,J,I,H,self.jsArrayGet(K, C+12),11,-421815835);

H=self.md5_hh(H,G,J,I,self.jsArrayGet(K, C+15),16,530742520);

I=self.md5_hh(I,H,G,J,self.jsArrayGet(K, C+2),23,-995338651);

J=self.md5_ii(J,I,H,G,self.jsArrayGet(K, C+0),6,-198630844);

G=self.md5_ii(G,J,I,H,self.jsArrayGet(K, C+7),10,1126891415);

H=self.md5_ii(H,G,J,I,self.jsArrayGet(K, C+14),15,-1416354905);

I=self.md5_ii(I,H,G,J,self.jsArrayGet(K, C+5),21,-57434055);

J=self.md5_ii(J,I,H,G,self.jsArrayGet(K, C+12),6,1700485571);

G=self.md5_ii(G,J,I,H,self.jsArrayGet(K, C+3),10,-1894986606);

H=self.md5_ii(H,G,J,I,self.jsArrayGet(K, C+10),15,-1051523);

I=self.md5_ii(I,H,G,J,self.jsArrayGet(K, C+1),21,-2054922799);

J=self.md5_ii(J,I,H,G,self.jsArrayGet(K, C+8),6,1873313359);

G=self.md5_ii(G,J,I,H,self.jsArrayGet(K, C+15),10,-30611744);

H=self.md5_ii(H,G,J,I,self.jsArrayGet(K, C+6),15,-1560198380);

I=self.md5_ii(I,H,G,J,self.jsArrayGet(K, C+13),21,1309151649);

J=self.md5_ii(J,I,H,G,self.jsArrayGet(K, C+4),6,-145523070);

G=self.md5_ii(G,J,I,H,self.jsArrayGet(K, C+11),10,-1120210379);

H=self.md5_ii(H,G,J,I,self.jsArrayGet(K, C+2),15,718787259);

I=self.md5_ii(I,H,G,J,self.jsArrayGet(K, C+9),21,-343485551);

J=self.safe_add(J,E);

I=self.safe_add(I,D);

H=self.safe_add(H,B);

G=self.safe_add(G,A)

if self.mode == 16:

return [I, H]

else:

return [J, I, H, G]

def md5_cmn(self, F, C, B, A, E, D):

return self.safe_add(self.bit_rol(self.safe_add(self.safe_add(C, F), self.safe_add(A, D)), E), B)

def md5_ff(self, C, B,G, F,A,E,D):

return self.md5_cmn((B&G)|((~B)&F), C, B, A, E, D)

def md5_gg(self, C,B,G,F,A,E,D):

return self.md5_cmn((B&F)|(G&(~F)),C,B,A,E,D)

def md5_hh(self, C,B,G,F,A,E,D):

return self.md5_cmn(B^G^F, C,B,A,E,D)

def md5_ii(self,C,B,G,F,A,E,D):

return self.md5_cmn(G^(B|(~F)),C,B,A,E,D)

def core_hmac_md5(self, C, F):

E = self.str2binl(C)

if len(E) > 16:

E = self.core_md5(E,len(C)*self.chrsz)

A = [None]*16

D = [None]*16

for B in range(0, 16):

A[B] = E[B]^909522486

D[B] = E[B]^1549556828

G = self.core_md5(A+self.str2binl(F), 512+len(F)*self.chrsz)

return self.core_md5(D+G, 512+128)

def safe_add(self, A,D):

C = (A&65535)+(D&65535)

B = (A>>16)+(D>>16)+(C>>16)

return (B<<16)|(C&65535)

def bit_rol(self, A, B):

return (A<<B)|self.rsl(A, 32-B)

def binl2str(self, C):

D = ''

A = (1<<self.chrsz)-1

for B in range(0, len(C)*32, self.chrsz):

D += chr(self.rsl(C[B>>5], B%32)&A)

return D

def binl2b64(self, D):

C="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"

F = ''

for B in range(0, len(D)*4, 3):

E=(((D[B>>2]>>8*(B%4))&255)<<16)|(((D[B+1>>2]>>8*((B+1)%4))&255)<<8)|((D[B+2>>2]>>8*((B+2)%4))&255)

for A in range(0, 4):

if B*8+A*6>len(D)*32:

F += self.b64pad

else:

F += C[(E>>6*(3-A))&63]

return F

def hexchar2bin(self,str):

arr = []

for i in range(0, len(str) , 2):

arr.append("\\x" + str[i:i+2])

arr="".join(arr)

exec("temp = '" + arr + "'");

return temp

def md5_3(self, B):

hash = self.core_md5(self.str2binl(B), len(B)*self.chrsz)

hash = self.core_md5(hash, 16*self.chrsz)

hash = self.core_md5(hash, 16*self.chrsz)

return self.binl2hex(hash)

转载于:https://blog.51cto.com/wbppp/894473

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