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sub 4096R/FC0D0DCB 2012-03-05 [expires: 2018-02-02] Once you have downloaded both SHA256SUMS and SHA256SUMS.gpg, you can verify the signature as follows: $ gpg --verify SHA256SUMS.gpg SHA256SUMSgpg: Signature made Thu Mar 7 21:26:40 2013 CET using RSA key ID 7D8D0BF6gpg: Good signature from "Kali Linux Repository