ceilidh

• For the social dance, see Céilidh

CEILIDH is a public key cryptosystem based on the discrete logarithm problem in algebraic torus. This idea was first introduced by Alice Silverberg and Karl Rubin in 2003. The main advantage of the system is the reduced size of the keys for the same security over basic schemes.

In modern usage, a cèilidh or ceilidh is a traditional Gaelic social gathering, which usually involves playing Gaelic folk music and dancing. It originated from Ireland and Scotland, but is now common throughout the Scottish and Irish diasporas, as well as throughout England in a fusion with English country dance. In Scottish Gaelic it is spelled cèilidh , and in Irish it is spelled céilí .