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

posted 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

test_DHparams

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Joseph

Hi, I have a problem that I'm hoping you can help me understand what it is and how to resolve it. Some apple devices are unable to access my website (www.cobblermall.com.ng). They always get an error message (safari could not open this webpage because it could not establish a secure connection to the server.