這篇文章主要介紹了jquery開發實現的md5插件，最後返回的是一串十進制數，在jquery1.9.2下測試通過,需要的朋友可以參考下
方法返回的是一串十進制數，在jquery1.9.2下測試通過。 代碼如下: (function($){ $.md5 = function(o) { if(null === o) { return 'null'; } if(typeof o != "string") { return 'null'; } //計算填充的長度 var fill_data_len = 0; var data_len = o.length; var d_l_mod = data_len % MD5_BASE_LEN; if(0 != d_l_mod) fill_data_len = MD5_BASE_LEN - d_l_mod; if(fill_data_len < 8) fill_data_len += MD5_BASE_LEN; var buf = new Array(data_len + fill_data_len); for(var i = 0;i < data_len;i++) buf[i] = o.charCodeAt(i); var msg_bit_len = data_len * BYTE_BIT_LEN buf[data_len] = FIRST_FILL_BYTE; for(var i = 0;i < 4;i++) { buf[data_len + fill_data_len - 8 + i] = ((msg_bit_len & (0x000000ff << (i * 8))) >> (i * 8)); } var md5_c = [MD5_A,MD5_B,MD5_C,MD5_D]; var md5_code = [MD5_A,MD5_B,MD5_C,MD5_D]; for(var m = 0;m < data_len + fill_data_len;m += 64) { var buf_p = new Array(16); for(var i = 0;i < 16;i++) { buf_p[i] = 0; for(var j = 0;j < 4;j++) { buf_p[i] <<= 8; buf_p[i] |= buf[m + j + i * 4]; } } for(var k = 0;k < 16;k += 4) { md5_c[0] = FF(md5_c[0],md5_c[1],md5_c[2], md5_c[3],buf_p[k],7,md5_ti[k]); md5_c[3] = FF(md5_c[3],md5_c[0],md5_c[1], md5_c[2],buf_p[k + 1],12, md5_ti[k + 1]); md5_c[2] = FF(md5_c[2],md5_c[3],md5_c[0], md5_c[1],buf_p[k + 2],17, md5_ti[k + 2]); md5_c[1] = FF(md5_c[1],md5_c[2],md5_c[3], md5_c[0],buf_p[k + 3],22, md5_ti[k + 3]); } md5_c[0] = GG(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[1],5,md5_ti[16]); md5_c[3] = GG(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[6],9,md5_ti[17]); md5_c[2] = GG(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[11],14,md5_ti[18]); md5_c[1] = GG(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[0],20,md5_ti[19]); md5_c[0] = GG(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[5],5,md5_ti[20]); md5_c[3] = GG(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[10],9,md5_ti[21]); md5_c[2] = GG(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[15],14,md5_ti[22]); md5_c[1] = GG(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[4],20,md5_ti[23]); md5_c[0] = GG(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[9],5,md5_ti[24]); md5_c[3] = GG(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[14],9,md5_ti[25]); md5_c[2] = GG(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[3],14,md5_ti[26]); md5_c[1] = GG(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[8],20,md5_ti[27]); md5_c[0] = GG(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[13],5,md5_ti[28]); md5_c[3] = GG(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[2],9,md5_ti[29]); md5_c[2] = GG(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[7],14,md5_ti[30]); md5_c[1] = GG(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[12],20,md5_ti[31]); md5_c[0] = HH(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[5],4,md5_ti[32]); md5_c[3] = HH(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[8],11,md5_ti[33]); md5_c[2] = HH(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[11],16,md5_ti[34]); md5_c[1] = HH(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[14],23,md5_ti[35]); md5_c[0] = HH(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[1],4,md5_ti[36]); md5_c[3] = HH(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[4],11,md5_ti[37]); md5_c[2] = HH(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[7],16,md5_ti[38]); md5_c[1] = HH(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[10],23,md5_ti[39]); md5_c[0] = HH(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[13],4,md5_ti[40]); md5_c[3] = HH(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[0],11,md5_ti[41]); md5_c[2] = HH(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[3],16,md5_ti[42]); md5_c[1] = HH(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[6],23,md5_ti[43]); md5_c[0] = HH(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[9],4,md5_ti[44]); md5_c[3] = HH(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[12],11,md5_ti[45]); md5_c[2] = HH(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[15],16,md5_ti[46]); md5_c[1] = HH(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[2],23,md5_ti[47]); md5_c[0] = II(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[0],6,md5_ti[48]); md5_c[3] = II(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[7],10,md5_ti[49]); md5_c[2] = II(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[14],15,md5_ti[50]); md5_c[1] = II(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[5],21,md5_ti[51]); md5_c[0] = II(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[12],6,md5_ti[52]); md5_c[3] = II(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[3],10,md5_ti[53]); md5_c[2] = II(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[10],15,md5_ti[54]); md5_c[1] = II(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[1],21,md5_ti[55]); md5_c[0] = II(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[8],6,md5_ti[56]); md5_c[3] = II(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[15],10,md5_ti[57]); md5_c[2] = II(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[6],15,md5_ti[58]); md5_c[1] = II(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[13],21,md5_ti[59]); md5_c[0] = II(md5_c[0],md5_c[1],md5_c[2],md5_c[3], buf_p[4],6,md5_ti[60]); md5_c[3] = II(md5_c[3],md5_c[0],md5_c[1],md5_c[2], buf_p[11],10,md5_ti[61]); md5_c[2] = II(md5_c[2],md5_c[3],md5_c[0],md5_c[1], buf_p[2],15,md5_ti[62]); md5_c[1] = II(md5_c[1],md5_c[2],md5_c[3],md5_c[0], buf_p[9],21,md5_ti[63]); for(var i = 0;i < 4;i++) { md5_code[i] += md5_c[i]; } for(var i = 0;i < 4;i++) { md5_c[i] = md5_code[i]; } } var md5_code_str = "" + md5_code[0]; for(var i = 1;i < 4;i++) md5_code_str += md5_code[i]; return md5_code_str; }; }(jQuery)); function F(x,y,z) { return (((x) & (y)) | ((~(x)) & (z))); } function G(x,y,z) { return (((x) & (z)) | ((y) & (~(z)))); } function H(x,y,z) { return ((x) ^ (y) ^ (z)); } function I(x,y,z) { return ((y) ^ ((x) | (~(z)))); } function bit_rol(d,n) { return (((d) << (n)) | ((d) >> (32 - (n)))); } function FF(a,b,c,d,m,s,t) { return b + bit_rol((a + F(b,c,d) + m + t),s); } function GG(a,b,c,d,m,s,t) { return b + bit_rol((a + G(b,c,d) + m + t),s); } function HH(a,b,c,d,m,s,t) { return b + bit_rol((a + H(b,c,d) + m + t),s); } function II(a,b,c,d,m,s,t) { return b + bit_rol((a + I(b,c,d) + m + t),s); } var md5_ti = [ 0xd76aa478,0xe8c7b756,0x242070db,0xc1bdceee, 0xf57c0faf,0x4787c62a,0xa8304613,0xfd469501, 0x698098d8,0x8b44f7af,0xffff5bb1,0x895cd7be, 0x6b901122,0xfd987193,0xa679438e,0x49b40821, 0xf61e2562,0xc040b340,0x265e5a51,0xe9b6c7aa, 0xd62f105d,0x02441453,0xd8a1e681,0xe7d3fbc8, 0x21e1cde6,0xc33707d6,0xf4d50d87,0x455a14ed, 0xa9e3e905,0xfcefa3f8,0x676f02d9,0x8d2a4c8a, 0xfffa3942,0x8771f681,0x6d9d6122,0xfde5380c, 0xa4beea44,0x4bdecfa9,0xf6bb4b60,0xbebfbc70, 0x289b7ec6,0xeaa127fa,0xd4ef3085,0x04881d05, 0xd9d4d039,0xe6db99e5,0x1fa27cf8,0xc4ac5665, 0xf4292244,0x432aff97,0xab9423a7,0xfc93a039, 0x655b59c3,0x8f0ccc92,0xffeff47d,0x85845dd1, 0x6fa87e4f,0xfe2ce6e0,0xa3014314,0x4e0811a1, 0xf7537e82,0xbd3af235,0x2ad7d2bb,0xeb86d391 ]; var BYTE_BIT_LEN = 8; var MD5_BASE_LEN = 64; var MD5_A = 0x67452301; var MD5_B = 0xefcdab89; var MD5_C = 0x98badcfe; var MD5_D = 0x10325476; var FIRST_FILL_BYTE = 0x80;