Questions tagged [code-cipher-cryptogram]

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16
votes
2answers
225 views

Why did Yonatan arrange the secret arrow sign with David?

In Shmuel Alef (20, 20-22) Yonatan arranges a whole scheme to secretly inform David whether or not it's safe for him to return. However, after the sign is given that it's not safe (20, 40), Yonatan ...
10
votes
4answers
869 views

What is the meaning of the inscription on the back of a m'zuza?

The string "כוזו במוכסז כוזו" is written on the back side of the parchment in many a doorpost scripture. According to the Ra"sh (hilchos m'zuza 18) וכן נהגו לכתוב באשכנז ובצרפת כנגד ה' אלקינו ה' ...
8
votes
5answers
298 views

Cryptography in Judaism

Are there any known uses of cryptography (or similar) in Jewish History?