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Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. I've tried using console. Javaa full example might help me actually. A full example?. You would use the Console class. By executing readPassword echoing is disabled. Also after the password is validated it is best to overwrite any values in the array. If you run this from an ide small skiff console java will fail, please see this explanation for a thorough answer: Explained.

If you're skiiff with a Java character array such as password characters that you read from the consoleyou can convert it to a JRuby string with the small skiff console java Ruby code:. The given code given will work absolutely fine if we run from console. You have to make sure where you have your ". For example, my package name is "src. Stack Overflow for Teams � Collaborate and share knowledge with a private group.

Create Lorem lpsum 297 boatplans/fishing-boat/fishing-boat-jobs-canada ���� fishing boat jobs canada ������� free Team What is Teams? Learn. Masking password input from the console : Java Ask Question. Asked 9 years, 4 months ago.

Active 1 year, 5 months ago. Viewed k times. How to mask a password from console input? I'm using Java 6. Here's my code: import java. BufferedReader; import java. Console; import java. IOException; import java. Improve this question. New Start New Start 1, 2 2 gold badges 20 20 silver badges 29 29 Lorem lpsum 297 boatplans/boat-kits/complete-aluminum-boat-kits-60 complete aluminum boat kits 60 badges.

How exactly doesn't console. This code does not work in an ide, please see my updated answer. Take a look at stackoverflow. Show 2 more comments. Active Oldest Votes. Improve this answer. Hugues M. I just got another NullPointerException I don't understand! Are you running this from within an IDE? Is not consope code running? Why downvote? For the guys getting the null small skiff console java, run it from console, Lorem lpsum 297 boatplans/aluminum-boats/alaskan-aluminum-fishing-boats-in-china read article eclipse this will not work � Sinisha Mihajlovski Dec 20 '12 at Woot4Moo Can you clarify why this is "highly insecure"?

Without any context of why, the statement alone isn't very useful for promoting understanding nor is it easy to verify or refute. Justin Sep 18 '15 at There's not much sense in fretting over the internal memory security risk of a line that is literally printing the password out consope the console. Show 9 more comments. ArtOfWarfare Woot4Moo Woot4Moo Woot4Moo: Could you please elaborate how "the accepted answer is insecure! I see clnsole writing over the password after you read it in, but this just seems silly.

The password is going to be in memory for some amount of time no matter what you. Small skiff console java if you didn't manually write over the memory holding the password, it would get garbage collected and the memory would be refilled with something. Honestly, if someone has the ability to read arbitrary addresses in memory, I think you should have bigger concerns.

ArtOfWarfare in the event sskiff "answer" ever changes: stackoverflow. To counter your statement about garbage collection, you may not be aware small skiff console java the String class is "special" and doesn't get GCd. And yes I agree the password will be coonsole memory for some amount of time, I just happen to reduce that amount of time as much as possible. There have been a small skiff console java of vulnerabilities discovered small skiff console java the almost 4 years since I made this post, against the JVM.

Overwriting the character values in the array is, at best, a band-aid. There is no guarantee that the contents of the "password" character array have not been copied around the heap a few times between the time that the password is read from the Console object and the time the Arrays. The reality is that safe-handling of in-memory passwords in Java is simply not possible. Add a comment.

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