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Weak cryptography keys allow others to add valid DKIM signatures to fake emails

512-bit key cracked within 72 hours.
512-bit key cracked within 72 hours. A Florida-based mathematician has caused a stir in the email community by adding a valid DKIM signature for google.com to an email after… https://virusbulletin.com/blog/2012/10/weak-cryptography-keys-allow-others-add-valid-dkim-signatures-fake-emails/

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