Tao mat khau tung buoc: tao mat khau manh ngay trong trinh duyet
Cong cu Password Generator mien phi tren trang nay tao mot mat khau ngau nhien hoan toan trong trinh duyet cua ban, dung bo tao so ngau nhien an toan cua he dieu hanh. Huong dan nay di qua tung nut va giai thich cac lua chon giup mat khau manh.
freetoolonline.com Editorial TeamCach tao mat khau
- Mo cong cu Password Generator. Mot mat khau xuat hien trong o ket qua ngay lap tuc, nen ban co the sao chep ma khong can chinh cai dat nao.
- Dat do dai bang thanh truot. No chay tu 4 den 64 ky tu va bat dau o 16; mat khau duoc tao lai khi ban keo.
- Chon bo ky tu bang bon o tick: chu thuong, chu hoa, chu so va ky hieu. Ca bon deu bat san theo mac dinh.
- Xem nhan do manh ben canh cac nut (Weak, Fair, Strong, Very strong) cung so bit, roi chinh do dai hoac bo ky tu cho den khi vua y.
- Bam Copy de dua mat khau vao bo nho tam, hoac bam Generate de tao mat khau moi.
Do dai anh huong den do manh nhu the nao
Khi bat ca bon bo, moi ky tu duoc chon tu mot tap 69 ky hieu, khoang 6,1 bit entropy moi ky tu. Mat khau cang dai cang cong them bit theo duong thang, va nhan cua cong cu bam theo so bit do:
| Do dai (bat tat ca cac bo) | Entropy uoc tinh | Nhan do manh |
|---|---|---|
| 8 ky tu | ~49 bit | Fair |
| 12 ky tu | ~73 bit | Strong |
| 16 ky tu (mac dinh) | ~98 bit | Very strong |
| 20 ky tu | ~122 bit | Very strong |
Tat mot bo ky tu se thu nho tap va giam so bit o cung do dai; vi vay neu ban buoc phai bo ky hieu hoac chu so cho mot trang tu choi chung, hay them vai ky tu do dai de bu lai.
Vi sao mot so ky tu bi bo qua
Cac bo chu thuong, chu hoa va chu so co y bo qua nhung ky tu de nham: chu thuong bo l va o, chu hoa bo I va O, con chu so bo 0 va 1. Danh doi nay lay di vai ky hieu khoi tap, nhung lam mat khau de doc tren man hinh va de go bang tay hon ma khong nham so mot voi chu el.
Nhan do manh la gi (va khong phai la gi)
Nhan la mot uoc tinh toan hoc tu do dai va kich thuoc tap ky tu ban da bat - dai khai ke tan cong can trung binh bao nhieu lan thu. No khong phai la kiem tra doi chieu voi cac co so du lieu ro ri, cung khong phai bai kiem tra be khoa thuc te, nen hay coi "Very strong" la "du dai va du ngau nhien", chu khong phai mot bao dam. Don bay chac chan nhat la do dai: mat khau dai gan nhu luon thang mat khau ngan co nhieu loai ky hieu hon.
Quyen rieng tu
Viec tao chay hoan toan trong tab trinh duyet cua ban bang bo tao so ngau nhien an toan (Web Crypto). Mat khau khong duoc gui den may chu, khong duoc ghi vao dich vu phan tich va khong duoc luu tren trang - lam moi hoac roi trang se xoa het, khong lich su va khong tai khoan. Sao chep chi dua mat khau vao bo nho tam va khong noi nao khac.
Huong dan lien quan
- Cong cu Password Generator - chinh cong cu, chay trong trinh duyet va khong gui di.
- MD5 converter - tinh ma bam MD5 cua van ban, mot phep bien doi mot chieu khac.
- Trung tam cong cu tien ich - toan bo bo tien ich chi chay trong trinh duyet.
Cau hoi thuong gap
Mat khau co du ngau nhien de an toan khong?
Co. Moi ky tu den tu bo tao so ngau nhien an toan cua trinh duyet (Web Crypto) qua mot bo chon khong thien lech, nen khong co mau nao doan truoc duoc. Ket hop voi do dai tu 16 tro len va tat ca cac bo ky tu, nhan do manh se bao Very strong.
Toi co the dung ma khong doi cai dat nao khong?
Co. Mot mat khau 16 ky tu voi ca bon bo duoc tao ngay khi trang tai xong, nen ban co the bam Copy ngay. Cac nut dieu khien danh cho luc mot trang gioi han do dai hoac cam mot so ky hieu.
Mot trang tu choi ky hieu cua toi. Phai lam gi?
Bo tick o ky hieu va tao lai, sau do them vai ky tu do dai de giu do manh. Chu so cung chu hoa va chu thuong da tao mot tap lon ngay ca khi dung rieng.
Mat khau cua toi co bi gui hoac luu o dau khong?
Khong. Viec tao chay hoan toan trong trinh duyet cua ban; mat khau khong bao gio duoc gui den may chu va khong gi duoc luu sau khi ban lam moi hoac roi trang.
Why trust these tools
- Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
- No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
- Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
- Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
- Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.