Gordon Corera

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1Cipher / Gordon Corera / Caesar cipher / Callum / Mathematics / Cryptography / One-time pad / Code

BBC Learning English 6 Minute English 9 January 2013 Messenger bird from the past Callum:

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Source URL: wsdownload.bbc.co.uk

Language: English - Date: 2013-01-10 12:08:03
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