SHA 1 Critical Vulnerability Notice

On October 8, 2015, a team of international cryptography researchers warned of a significantly increased risk in using SHA-1 certificates, and recommended that administrators accelerate their migration to SHA-2 certificates. The risk is that, with enough computing power, an attacker can craft a fake certificate that in all key respects appears to be signed by a public Certification Authority (it cryptographically chains up to a Certification Authority’s root certificate). This doesn’t mean that websites is suddenly insecure, but it certainly is a wake-up call. The current policy of most browsers stipulates that they will completely reject SHA-1 TLS certificates on January 1, 2017. However, in light of these new findings, it’s highly possible the deadline will be accelerated. If your […]

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