Here is an algorithm in Java开发者_开发知识库: public String getHash(String password, String salt) throws Exception {
I\'m trying to create an implementation of PBKDF2 to generate a key to encrypt a file with AES-256, but I have a question about salt size. I plan to use SHA-256 and concatenate with the passphrase, so
Hi all I have a question on if this is good practice or not.I am aware that simply double hashing a value can be bad for various reasons.
I wanted to understand how the SHA0 hash function was broken.I understand that utilising the birthday problem/pigeon-hold principle, hash collision(s) were found.http://www.mail-archive.com/cryptograp
What is the output format of the SHA256? It is composed by lett开发者_开发知识库ers and numbers only? And it is case insensitive?As with most (all?) crypto hashes, the output of SHA-256 is binary data
Is it possible for me to declare a variable, without a type, then specify the type based on some conditions? For example, I want to create a SHA Hash object based what size the user would like to use:
I would like to know if there is any command available to get the SHA id of a parti开发者_如何学编程cular file on a given specific git branch on the GIT remote server?
I have a problem, maybe a silly question, I want to store data in a database after I hash with the SHA1 algorithm. However, at a future time, the si开发者_如何学Cze in database will increase because s
I start with a weak password (8 lower case characters for ex) and a file. I need to encrypt that file using that password. Result has to be secure against known attacks.
When you are using GNU/Linux, the password are (mainly) encripted in MD5 and SHA The operative system attaches a SALT to this password before encrypting it to avoid dictionary attacs.
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