如果包装在函数中，CryptoJS 不会解密

Question

I am experiencing an issue that is blowing my mind. I have two equal pieces of code, with the only difference that I wrapped a call (that I will use often in my class) inside a function in one of them, while in the other is explicit. Well, the one piece works, while the other does not.

This works fine:

public testSymmetricEncryption(): void {
        const original = 'Understanding at the alpha quadrant that is when conscious klingons yell.';
        const password = 'myPassword';
        const encrypted = CryptoJS.AES.encrypt(original, password).toString();
        const decrypted = CryptoJS.AES.decrypt(encrypted, password).toString(CryptoJS.enc.Utf8);

        console.log('Test symmetric encryption', {original, password, encrypted, decrypted});
    }

While this other does not work (no decrypted value give, ie '' ), and sometimes even an Error: Malformed UTF-8 data exception:

public testSymmetricEncryption(): void {
        const original = 'Understanding at the alpha quadrant that is when conscious klingons yell.';
        const password = 'myPassword';
        const encrypted = this.encryptSymmetric(original, original);
        const decrypted = this.decryptSymmetric(encrypted, password);

        console.log('Test symmetric encryption', {original, password, encrypted, decrypted});
}

    public encryptSymmetric(value: string, password: string) {
        return CryptoJS.AES.encrypt(value, password).toString();
}

    public decryptSymmetric(encrypted: string, password: string) {
        return CryptoJS.AES.decrypt(encrypted, password).toString(CryptoJS.enc.Utf8);
}

Anybody has an idea why this is happening?

Answer 1

I think you might have a typo here. Instead of const encrypted = this.encryptSymmetric(original, original); , I think it should be const encrypted = this.encryptSymmetric(original, password);