{"id":"shannon1949","page":"656–715","type":"article-journal","issue":"4","title":"Communication Theory of Secrecy Systems","author":[{"given":"Claude E.","family":"Shannon"}],"issued":{"date-parts":[[1949]]},"volume":"28","year-text":"1949","container-title":"Bell System Technical Journal","URL":"https://doi.org/10.1002/j.1538-7305.1949.tb00928.x","DOI":"10.1002/j.1538-7305.1949.tb00928.x","catalog-key":"SRC08JJ6WYR1R4P"}