# Unicity distance

> Amount of ciphertext needed to unambiguously break an encryption system

**Wikidata**: [Q1640661](https://www.wikidata.org/wiki/Q1640661)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Unicity_distance)  
**Source**: https://4ort.xyz/entity/unicity-distance


## References

1. Freebase Data Dumps. 2013