dhe

The tag 'dhe' on WindowsForum.com refers to Diffie-Hellman ephemeral (DHE) key exchange, particularly in the context of a security vulnerability addressed by Microsoft security update MS15-055. This update resolves an information disclosure vulnerability in Microsoft Windows where Secure Channel (Schannel) allowed the use of weak 512-bit DHE keys in TLS sessions, making them vulnerable to attacks. The discussion highlights that Windows servers default to a minimum 1024-bit DHE key length, but the vulnerability could be exploited if a server supports 512-bit keys. The tag covers topics related to Windows security updates, TLS encryption, and cryptographic key strength.