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2
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1answer
89 views

Is it feasible to break Diffie-Hellman key exchange when the implementation uses a poor-quality PRNG?

I've come across an implementation of DH in Java that uses the Random class to generate the secret integer value $a$, as shown in in Wikipedia's description of the ...
1
vote
2answers
201 views

is AES secure for java application licensing

I have to license a java application and want to code a quick implementation, the scheme I came up with is: 1) The Application calculates a string X which we assume to be the md5 sum of the ...
1
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0answers
37 views

Parallelizing AES GCM in BouncyCastle [migrated]

I'm using AES-GCM with the BouncyCastle provider in Java and it works fine. The NIST documentation seems to suggest that GCM is an algorithm that allows parallelization -- however, on looking at the ...
0
votes
1answer
129 views

Possibility of factorisation of rsa modulus due to vulnerability in java implementation code

Below is my implementation of the RSA algorithm. Actually I'm choosing the private key (d) instead of public key (e) and computing the public key.It is working fine but I want to know if this is a ...