uniapp 小程序接口加密 (jsencrypt) 不支持window.btoa()转base64,找了一个本地转加密的也不行
function base64_encode(str) {
var c1, c2, c3;
var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var i = 0,
len = str.length,
string = '';
while (i < len) {
c1 = str.charCodeAt(i++) & 0xff;
if (i == len) {
string += base64EncodeChars.charAt(c1 >> 2);
string += base64EncodeChars.charAt((c1 & 0x3) << 4);
string += "==";
break;
}
c2 = str.charCodeAt(i++);
if (i == len) {
string += base64EncodeChars.charAt(c1 >> 2);
string += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
string += base64EncodeChars.charAt((c2 & 0xF) << 2);
string += "=";
break;
}
c3 = str.charCodeAt(i++);
string += base64EncodeChars.charAt(c1 >> 2);
string += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
string += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
string += base64EncodeChars.charAt(c3 & 0x3F)
}
return string
}
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