'Pigpen cipher' presentation slideshows

Cryptography & Cryptanalysis

561 views • 41 slides

DPEFT, DJQIFST boe TFDSFU XSJUJOH.

DPEFT, DJQIFST boe TFDSFU XSJUJOH. If for each letter, you instead write the letter before it in the alphabet, you will discover what we are doing this morning. DPEFT, DJQIFST boe TFDSFU XSJUJOH. becomes CODES, CIPHERS and SECRET WRITING. WHY?. Codes have been important throughout history.

394 views • 29 slides

CRYTOGRAPHY

CRYTOGRAPHY. PIGPEN CIPHER. Contents. Introduction History Advantages Disadvantages Explanation (how it works) Illustrated examples TEST! Cracking the code (how to break it). Introduction. Simple substitution cipher for symbols based on a grid.

204 views • 18 slides