我在 javascript 中有这个加密代码,它的解密是用我不知道的其他语言编写的。但我想在 javascript 中解密它!谁可以帮我这个事。
function getEncryptedPassword(str) {
var keyStr = 'ABCDEFGHIJKLMNOP' +
'QRSTUVWXYZabcdef' +
'ghijklmnopqrstuv' +
'wxyz0123456789+/' +
'=';
var unEncPw = escape(str), output = '', i = 0;
var chr1, chr2, chr3 = '';
var enc1, enc2, enc3, enc4 = '';
do {
chr1 = unEncPw.charCodeAt(i++);
chr2 = unEncPw.charCodeAt(i++);
chr3 = unEncPw.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output +
keyStr.charAt(enc1) +
keyStr.charAt(enc2) +
keyStr.charAt(enc3) +
keyStr.charAt(enc4);
chr1 = chr2 = chr3 = '';
enc1 = enc2 = enc3 = enc4 = '';
} while (i < unEncPw.length);
return output;
}
提前致谢。!