         show_iv: false
        },
        watch: {
            encrypt_type(newVal) {
                if(newVal == 'SM4-CBC'){
                    this.show_iv = true;
                }else{
                    this.show_iv = false;
                }
            },
        },
        methods: {
            encrypt() {
                if(this.set.input == '' || this.set.passphrase == '') return;
                try {
                    if(this.encrypt_type == 'SM4-ECB'){
                   