david wong

Hey ! I'm David, a security consultant at Cryptography Services, the crypto team of NCC Group . This is my blog about cryptography and security and other related topics that I find interesting.

Checking your Diffie-Hellman parameters February 2016

I made a simple script to check for your DH modulus. Is it long enough? Is it a safe prime? I thought some non-cryptographers could benefit from such a tool, since usually all I have to do is fire up Sage and run some tests, but if you don't have Sage this can be tricky and annoying so...

Here's test_DHparams


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