详细问题描述

在1.8之后自定义组件模式下调用以下代码会报
Neither WebCryptoAPI nor a crypto module is available. Use bcrypt.setRandomFallback to set an alternative;at api request success callback function

const salt = bcrypt.genSaltSync(saltRounds);  
var code = bcrypt.hashSync(“aa”,salt)

之后 自行用isaac.js 后解决了该问题
但是在最新更新的 2.2.1版本后bcrypt.hashSync()会变得非常耗时 5s以上
bcrypt 相关源码如下:

   bcrypt.hashSync = function(s, salt) {  
        if (typeof salt === 'undefined')  
            salt = GENSALT_DEFAULT_LOG2_ROUNDS;  
        if (typeof salt === 'number')  
            salt = bcrypt.genSaltSync(salt);  
        if (typeof s !== 'string' || typeof salt !== 'string')  
            throw Error("Illegal arguments: "+(typeof s)+', '+(typeof salt));  
        return _hash(s, salt);  
    };  
bcrypt.genSaltSync = function(rounds, seed_length) {  
        rounds = rounds || GENSALT_DEFAULT_LOG2_ROUNDS;  
        if (typeof rounds !== 'number')  
            throw Error("Illegal arguments: "+(typeof rounds)+", "+(typeof seed_length));  
        if (rounds < 4)  
            rounds = 4;  
        else if (rounds > 31)  
            rounds = 31;  
        var salt = [];  
        salt.push("$2a$");  
        if (rounds < 10)  
            salt.push("0");  
        salt.push(rounds.toString());  
        salt.push('$');  
        salt.push(base64_encode(random(BCRYPT_SALT_LEN), BCRYPT_SALT_LEN)); // May throw  
        return salt.join('');  
    };

[IDE版本号]

HBuilder X 2.2.1.20190813

[mac版本号]
10.15 Beta (19A526h)

uni-app运行环境说明

云打包后 自定义基座 真机调试都有延迟 Android模拟器有延迟 ios模拟器上没有延迟
[运行端是h5或app或某个小程序？]
h5 正常 app 延迟