#factoring on Hacker News

2 stories tagged factoring, newest first.

Screenshot of mcpherrin.ca: I've factored the RSA keys of a Certificate Authority from the 90s

I've factored the RSA keys of a Certificate Authority from the 90s (mcpherrin.ca)

461 points by ahlCVA 1 month ago | 106 comments

Blog post by Matthew McPherrin describing factoring the RSA keys of a 1990s-era certificate authority and what it says about RSA security.

rsa cryptography certificate-authority factoring

Screenshot of dmarcchecker.app: Cracking a 512-bit DKIM key for less than $8 in the cloud

Cracking a 512-bit DKIM key for less than $8 in the cloud (dmarcchecker.app)

769 points by awulf 1 year ago | 370 comments

An article describing how the authors factored a 512-bit RSA DKIM public key using cloud computing for under $8 and tested forged email signatures against major providers.

dkim rsa email-security cryptography

#factoring on Hacker News

I've factored the RSA keys of a Certificate Authority from the 90s(mcpherrin.ca)

Cracking a 512-bit DKIM key for less than $8 in the cloud(dmarcchecker.app)

I've factored the RSA keys of a Certificate Authority from the 90s (mcpherrin.ca)

Cracking a 512-bit DKIM key for less than $8 in the cloud (dmarcchecker.app)