'DKIM' is a mechanism to prevent email spoofing and prove that an email was sent from the correct person, but engineer Andreas Wolf explains that if the RSA key used for DKIM signature is short, it ...

The cost and time required to break 512-bit RSA encryption keys has plummeted to an all-time low of just $75 and four hours using a recently published recipe that even computing novices can follow.

For years, privacy advocates have pushed developers of websites, virtual private network apps, and other cryptographic software to adopt the Diffie-Hellman cryptographic key exchange as a defense ...