Fundamental difference between Hashing and Encryption algorithms
I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about: When … Read more
hash
Why does Java’s hashCode() in String use 31 as a multiplier?
Per the Java documentation, the hash code for a String object is computed as: s[0]*31^(n-1) + s[1]*31^(n-2) + … + s[n-1] using int … Read more
How can bcrypt have built-in salts?
Coda Hale’s article “How To Safely Store a Password” claims that: bcrypt has salts built-in to prevent rainbow table attacks. He cites this … Read more
Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript? I’m not utilizing a server-side language so I … Read more
How can I generate an MD5 hash in Java?
Is there any method to generate MD5 hash of a string in Java? 33 s 33
Secure hash and salt for PHP passwords
It is currently said that MD5 is partially unsafe. Taking this into consideration, I’d like to know which mechanism to use for password … Read more
How to decrypt a SHA-256 encrypted string?
SHA-256 is a cryptographic (one-way) hash function, so there is no direct way to decode it. The entire purpose of a cryptographic hash … Read more
Good Hash Function for Strings
Usually hashes wouldn’t do sums, otherwise stop and pots will have the same hash. and you wouldn’t limit it to the first n … Read more
NullPointerExcetion Native Method Accessor… Hashing Words Issue
This whileloop is strange: while (scanner.hasNextLine()) { String line = scanner.nextLine(); while (line != null) { String word = scanner.next(); addWord(word, linecount); } … Read more