Tagged Questions
1
vote
3answers
124 views
Deterministic key generation
In a situation where it is required to generate n number of keys deterministically from a single piece of seed information can we assume that b breached number of keys, no matter what the quantity ...
0
votes
1answer
71 views
On the fly key generation for cloud storage objects
Cryptographic key management involves storing and managing encryption decryption keys , certificates , signatures etc .
If the requirement is just to store and manage object specific keys ( say ...
2
votes
1answer
124 views
Is it OK to use a data-encryption key for key wrapping, too?
Our industry (area of cheap networked devices) has a standard that defines the usage of keys for both authentication and encryption using EAX mode of AES. This standard does not define key management, ...
5
votes
4answers
362 views
Creating an encryption key from several other keys and using hash functions
I want to combine two or more keys to create a single encryption key that relies on all of them. What is the proper method for doing that? Simple XOR? Using hash functions? Something else?
I ...
3
votes
3answers
179 views
Derived Shared Key vs Distinct Keys?
I've seen a lot of 2-party applications that derive a shared key from distinct keys created by each party.
Why is this technique employed? Would it not be better to use those two distinct keys for ...
3
votes
2answers
569 views
How key materials are generated in SSL V3 from master secret
The generation of key materials is given by
...
6
votes
2answers
249 views
Key Length & Hashing
I need to use a hash function to generate a 128-bit key for a symmetric cipher. The specific cipher is from the eStream portofolio, called Rabbit.
I am using the SRP protocol for authentication (a ...
10
votes
5answers
632 views
Why does PBKDF2 xor the iterations of the hash function together?
The definition of PBKDF2 states that I obtain a derived key* by calling a pseudorandom function a bunch of times recursively:
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