微信小程序 sha1 实现密码加密实例详解
在utils中的util.js 文件中增加 函数 实现 字符串转换为16进制加密后的字符串
// 字符串加密成 hex 字符串
function sha1(s) {
var data = new Uint8Array(encodeUTF8(s))
var i,j,t;
var l = ((data.length + 8) >>> 6 << 4) + 16,s = new Uint8Array(l << 2);
s.set(new Uint8Array(data.buffer)),s = new Uint32Array(s.buffer);
for (t = new DataView(s.buffer),i = 0; i < l; i++)s[i] = t.getUint32(i << 2);
s[data.length >> 2] |= 0x80 << (24 - (data.length & 3) * 8);
s[l - 1] = data.length << 3;
var w = [],f = [
function () { return m[1] & m[2] | ~m[1] & m[3]; },function () { return m[1] ^ m[2] ^ m[3]; },function () { return m[1] & m[2] | m[1] & m[3] | m[2] & m[3]; },function () { return m[1] ^ m[2] ^ m[3]; }
],rol = function (n,c) { return n << c | n >>> (32 - c); },k = [1518500249,1859775393,-1894007588,-899497514],m = [1732584193,-271733879,null,-1009589776];
m[2] = ~m[0],m[3] = ~m[1];
for (i = 0; i < s.length; i += 16) {
var o = m.slice(0);
for (j = 0; j < 80; j++)
w[j] = j < 16 ? s[i + j] : rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16],1),t = rol(m[0],5) + f[j / 20 | 0]() + m[4] + w[j] + k[j / 20 | 0] | 0,m[1] = rol(m[1],30),m.pop(),m.unshift(t);
for (j = 0; j < 5; j++)m[j] = m[j] + o[j] | 0;
};
t = new DataView(new Uint32Array(m).buffer);
for (var i = 0; i < 5; i++)m[i] = t.getUint32(i << 2);
var hex = Array.prototype.map.call(new Uint8Array(new Uint32Array(m).buffer),function (e) {
return (e < 16 ? "0" : "") + e.toString(16);
}).join("");
return hex;
};
导出函数
以 密码为 123456 作为示例,在线加密结果
加密结果是相同的
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