meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 2 years, 2 months |
| seen | 3 hours ago | |
| stats | profile views | 15 |
|
Jul 10 |
suggested | suggested edit on How can I be sure Lastpass really can't access my passwords? |
|
Jul 10 |
comment |
how to host email server for small Business company has Static IP and Port 25 is Opened? @RoryAlsop: Is that Problem with the DNS settings for our new company mailserver, or some other question? |
|
Jul 9 |
comment |
Is PBKDF2-based System.Cryptology.RFC2898DeriveBytes() “better” for Unicode Password hashing than traditional methods? related: Does NIST really recommend PBKDF2 for password hashing? |
|
Jun 27 |
comment |
Using passwords made of words possible duplicate of Can a dictionary attack crack a Diceware passphrase? |
|
Jun 23 |
comment |
Is it safe to store a single symmetric key encrypted with several different RSA public keys? related: security.stackexchange.com/questions/8720/… |
|
Jun 23 |
comment |
Save private messages encrypted in database related: security.stackexchange.com/questions/12205/… |
|
Jun 22 |
awarded | Critic |
|
Jun 22 |
comment |
Can a file contain its md5sum inside it? @CesarB: Could you edit your answer to emphasize that it is almost certainly theoretically possible to "create a file that contains its md5sum inside it", even though it is practically impossible with today's technology? For any one given postfix, we have a 63% probability that such file is possible; for any 7 different given postfixes, we have a 99.9% probability that such a file is possible for at least one of those postfixes. Since there are an infinite number of possible postfixes, it's almost certain that millions of different postfixes have at least one md5 fixed point. |
|
Jun 22 |
awarded | Commentator |
|
Jun 22 |
comment |
Can a file contain its md5sum inside it? @CesarB: Could you edit your answer to emphasize that it is almost certainly possible to "create a file that contains its md5sum inside it" -- for any one postfix, we have a 63% probability that one "merely" iterates through all possible postfixes (of where there are an infinite number) |
|
Jun 22 |
comment |
Can a file contain its md5sum inside it? @Shadur: Yes, there is no function f such that, for each and every value X, f(md5(X)) yields X. However, there are many functions f such that, for at least one value X, f(md5(X)) yields X (the fixedpoint) -- CesarB already gives one example. |
|
Jun 20 |
answered | Is there a crypto system which detects decryption somewhere between sender and receiver? |
|
Jun 19 |
answered | What's a good way to trigger a hidden 'distress signal' in instant messaging? |
|
Jun 18 |
asked | Is there a standard for printing a public key as a barcode? |
|
Jun 18 |
answered | Is it safe to store a single symmetric key encrypted with several different RSA public keys? |
|
Jun 18 |
awarded | Scholar |
|
Jun 18 |
accepted | Can a dictionary attack crack a Diceware passphrase? |
|
Jun 18 |
answered | Is a self signed certificate sufficient to prove the integrity of my executable? |
|
Jun 17 |
awarded | Tag Editor |
|
Jun 17 |
revised |
passwords wiki description include the 3 KDFs actually mentioned in the top-rated answer |
