hash-collision

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Recursive MD5 and probability of collision

I wonder if it is \'safe\' to hash a bunch of MD5 hash values together to create a new hash or whether this will in any way increase the probability of collisions.[详细]

2023-04-05 21:13 分类：问答
Why doesn't my HashTable allow key collisions?

I read that HashTable can map same key to multiple values. That\'s what collision is. Now I run the program like this:[详细]

2023-03-29 04:45 分类：问答
How was SHA-0 broken? - What is the significance of a mere handful of hash collisions?

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[详细]

2023-03-18 05:22 分类：问答
I'm using ELF Hash to write a specially tweaked version of hash map. Wanting to produce collisions

Can any one give an example of 2 strings, consisting of alphabetical characters only, that will produce the same hash value with ELFHash?[详细]

2023-03-04 13:11 分类：问答
C++: proper use of HASH and Collision Techniques

Sh开发者_如何学Pythonould there be a size limitation on how LARGE a Hash Table may be? I\'m a little baffled as I can see why creating too small of a Hash Table should be causing me issues? It appea[详细]

2023-02-12 11:19 分类：问答
How to discover identical files without comparing them to eachother?

I am building a site where users can upload content. As always I aim for world dominance, so I would like to avoid storing the same file twice.[详细]

2023-02-11 07:50 分类：问答
substr md5 collision

I need a 4-character hash. At the 开发者_开发问答moment I am taking the first 4 characters of a md5() hash. I am hashing a string which is 80 characters long or less. Will this lead to collision? or,[详细]

2023-02-04 18:45 分类：问答
Collision Attacks, Message Digests and a Possible solution

I\'ve been doing some preliminary research in the area of message digests. Specifically collision attacks of cryptographic hash functions such as MD5 and SHA-1, such as the Postscript example and X.50[详细]

2023-02-03 23:48 分类：问答
Inserting twice the same key in a HashTable, how is that possible?

I am trying to understand how works the key sorting / insertion check in a hashtable. I\'ve understood that when I\'m adding an object to a hashtable, it checks at runtime that there isn\'t the same k[详细]

2023-01-25 07:09 分类：问答
HashMap collisions: is my code correct?

I want to have one DateWrapper - representing a date (built for Hibernate persistance, but this is another story) - at most existing at the same time for the same date.[详细]

2023-01-25 00:26 分类：问答