# c/c++源码转换

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`//最近手头上有一份 javascript 的源代码需要把它转换成C/C++`
`//代码如下，望各位大虾帮忙做下，急用中……thanks`
`(function (\$) {    'use strict';    /*    * Add integers, wrapping at 2^32. This uses 16-bit operations internally    * to work around bugs in some JS interpreters.    */    function safe_add(x, y) {        var lsw = (x & 0xFFFF) + (y & 0xFFFF),            msw = (x >> 16) + (y >> 16) + (lsw >> 16);        return (msw << 16) | (lsw & 0xFFFF);    }    /*    * Bitwise rotate a 32-bit number to the left.    */    function bit_rol(num, cnt) {        return (num << cnt) | (num >>> (32 - cnt));    }    /*    * These functions implement the four basic operations the algorithm uses.    */    function md5_cmn(q, a, b, x, s, t) {        return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);    }    function md5_ff(a, b, c, d, x, s, t) {        return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);    }    function md5_gg(a, b, c, d, x, s, t) {        return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);    }    function md5_hh(a, b, c, d, x, s, t) {        return md5_cmn(b ^ c ^ d, a, b, x, s, t);    }    function md5_ii(a, b, c, d, x, s, t) {        return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);    }    /*    * Calculate the MD5 of an array of little-endian words, and a bit length.    */    function binl_md5(x, len) {        /* append padding */        x[len >> 5] |= 0x80 << ((len) % 32);        x[(((len + 64) >>> 9) << 4) + 14] = len;        var i, olda, oldb, oldc, oldd,            a =  1732584193,            b = -271733879,            c = -1732584194,            d =  271733878;        for (i = 0; i < x.length; i += 16) {            olda = a;            oldb = b;            oldc = c;            oldd = d;            a = md5_ff(a, b, c, d, x[i],       7, -680876936);            d = md5_ff(d, a, b, c, x[i +  1], 12, -389564586);            c = md5_ff(c, d, a, b, x[i +  2], 17,  606105819);            b = md5_ff(b, c, d, a, x[i +  3], 22, -1044525330);            a = md5_ff(a, b, c, d, x[i +  4],  7, -176418897);            d = md5_ff(d, a, b, c, x[i +  5], 12,  1200080426);            c = md5_ff(c, d, a, b, x[i +  6], 17, -1473231341);            b = md5_ff(b, c, d, a, x[i +  7], 22, -45705983);            a = md5_ff(a, b, c, d, x[i +  8],  7,  1770035416);            d = md5_ff(d, a, b, c, x[i +  9], 12, -1958414417);            c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);            b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);            a = md5_ff(a, b, c, d, x[i + 12],  7,  1804603682);            d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);            c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);            b = md5_ff(b, c, d, a, x[i + 15], 22,  1236535329);            a = md5_gg(a, b, c, d, x[i +  1],  5, -165796510);            d = md5_gg(d, a, b, c, x[i +  6],  9, -1069501632);            c = md5_gg(c, d, a, b, x[i + 11], 14,  643717713);            b = md5_gg(b, c, d, a, x[i],      20, -373897302);            a = md5_gg(a, b, c, d, x[i +  5],  5, -701558691);            d = md5_gg(d, a, b, c, x[i + 10],  9,  38016083);            c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);            b = md5_gg(b, c, d, a, x[i +  4], 20, -405537848);            a = md5_gg(a, b, c, d, x[i +  9],  5,  568446438);            d = md5_gg(d, a, b, c, x[i + 14],  9, -1019803690);            c = md5_gg(c, d, a, b, x[i +  3], 14, -187363961);            b = md5_gg(b, c, d, a, x[i +  8], 20,  1163531501);            a = md5_gg(a, b, c, d, x[i + 13],  5, -1444681467);            d = md5_gg(d, a, b, c, x[i +  2],  9, -51403784);            c = md5_gg(c, d, a, b, x[i +  7], 14,  1735328473);            b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);            a = md5_hh(a, b, c, d, x[i +  5],  4, -378558);            d = md5_hh(d, a, b, c, x[i +  8], 11, -2022574463);            c = md5_hh(c, d, a, b, x[i + 11], 16,  1839030562);            b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);            a = md5_hh(a, b, c, d, x[i +  1],  4, -1530992060);            d = md5_hh(d, a, b, c, x[i +  4], 11,  1272893353);            c = md5_hh(c, d, a, b, x[i +  7], 16, -155497632);            b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);            a = md5_hh(a, b, c, d, x[i + 13],  4,  681279174);            d = md5_hh(d, a, b, c, x[i],      11, -358537222);            c = md5_hh(c, d, a, b, x[i +  3], 16, -722521979);            b = md5_hh(b, c, d, a, x[i +  6], 23,  76029189);            a = md5_hh(a, b, c, d, x[i +  9],  4, -640364487);            d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);            c = md5_hh(c, d, a, b, x[i + 15], 16,  530742520);            b = md5_hh(b, c, d, a, x[i +  2], 23, -995338651);            a = md5_ii(a, b, c, d, x[i],       6, -198630844);            d = md5_ii(d, a, b, c, x[i +  7], 10,  1126891415);            c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);            b = md5_ii(b, c, d, a, x[i +  5], 21, -57434055);            a = md5_ii(a, b, c, d, x[i + 12],  6,  1700485571);            d = md5_ii(d, a, b, c, x[i +  3], 10, -1894986606);            c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);            b = md5_ii(b, c, d, a, x[i +  1], 21, -2054922799);            a = md5_ii(a, b, c, d, x[i +  8],  6,  1873313359);            d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);            c = md5_ii(c, d, a, b, x[i +  6], 15, -1560198380);            b = md5_ii(b, c, d, a, x[i + 13], 21,  1309151649);            a = md5_ii(a, b, c, d, x[i +  4],  6, -145523070);            d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);            c = md5_ii(c, d, a, b, x[i +  2], 15,  718787259);            b = md5_ii(b, c, d, a, x[i +  9], 21, -343485551);            a = safe_add(a, olda);            b = safe_add(b, oldb);            c = safe_add(c, oldc);            d = safe_add(d, oldd);        }        return [a, b, c, d];    }    /*    * Convert an array of little-endian words to a string    */    function binl2rstr(input) {        var i,            output = '';        for (i = 0; i < input.length * 32; i += 8) {            output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xFF);        }        return output;    }    /*    * Convert a raw string to an array of little-endian words    * Characters >255 have their high-byte silently ignored.    */    function rstr2binl(input) {        var i,            output = [];        output[(input.length >> 2) - 1] = undefined;        for (i = 0; i < output.length; i += 1) {            output[i] = 0;        }        for (i = 0; i < input.length * 8; i += 8) {            output[i >> 5] |= (input.charCodeAt(i / 8) & 0xFF) << (i % 32);        }        return output;    }    /*    * Calculate the MD5 of a raw string    */    function rstr_md5(s) {        return binl2rstr(binl_md5(rstr2binl(s), s.length * 8));    }    /*    * Calculate the HMAC-MD5, of a key and some data (raw strings)    */    function rstr_hmac_md5(key, data) {        var i,            bkey = rstr2binl(key),            ipad = [],            opad = [],            hash;        ipad[15] = opad[15] = undefined;                                if (bkey.length > 16) {            bkey = binl_md5(bkey, key.length * 8);        }        for (i = 0; i < 16; i += 1) {            ipad[i] = bkey[i] ^ 0x36363636;            opad[i] = bkey[i] ^ 0x5C5C5C5C;        }        hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);        return binl2rstr(binl_md5(opad.concat(hash), 512 + 128));    }    /*    * Convert a raw string to a hex string    */    function rstr2hex(input) {        var hex_tab = '0123456789abcdef',            output = '',            x,            i;        for (i = 0; i < input.length; i += 1) {            x = input.charCodeAt(i);            output += hex_tab.charAt((x >>> 4) & 0x0F) +                hex_tab.charAt(x & 0x0F);        }        return output;    }    /*    * Encode a string as utf-8    */    function str2rstr_utf8(input) {        return unescape(encodeURIComponent(input));    }    /*    * Take string arguments and return either raw or hex encoded strings    */    function raw_md5(s) {        return rstr_md5(str2rstr_utf8(s));    }    function hex_md5(s) {        return rstr2hex(raw_md5(s));    }    function raw_hmac_md5(k, d) {        return rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d));    }    function hex_hmac_md5(k, d) {        return rstr2hex(raw_hmac_md5(k, d));    }        \$.md5 = function (string, key, raw) {        if (!key) {            if (!raw) {                return hex_md5(string);            } else {                return raw_md5(string);            }        }        if (!raw) {            return hex_hmac_md5(key, string);        } else {            return raw_hmac_md5(key, string);        }    };    }(typeof jQuery === 'function' ? jQuery : this));`
sagapo | 初学一级 | 园豆：64

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az235 | 园豆：8483 (大侠五级) | 2012-02-28 13:49

javascript 加密的

@sagapo: 哪种加密方式MD%?

@az235: 改了的HMAC_MD5算法，有兴趣不？

0

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sagapo | 园豆：64 (初学一级) | 2012-03-20 13:58

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