Bar and Bat Mitzvah "son" (), while "bat" () means "daughter" in Hebrew, and "mitzvah" () means "commandment" or "law" (plural: "mitzvot"). Thus "bar mitzvah" and "bat mitzvah" literally translate to "son of commandment" and "daughter of commandment". However, in rabbinical usage, the word "bar" means "under the category of" or "subject to". "Bar mitzvah" therefore translates to "an [agent] who is subject to the law". Although the term is commonly used to refer to the ritual itself, in fact the phrase originally refers to the person. The modern method of celebrating becoming a bar mitzvah did not exist in the time of the
Bar mitzvah attack attack is named after the bar mitzvah ceremony which is held at 13 years of age, because the vulnerability exploited is 13 years old and likely inspired by the naming of the unrelated birthday attack. Bar mitzvah attack The bar mitzvah attack is an attack on the SSL/TLS protocols that exploits the use of the RC4 cipher with weak keys for that cipher. While this affects only the first hundred or so bytes of only the very small fraction of connections that happen to use weak keys, it allows significant compromise of user security, for example by allowing the interception