# A new implementation of chaotic S-boxes in CAPTCHA

> Research article (Signal Image and Video Processing, 2015) · cited 53× · AI/ML

**Wikidata**: [openalex:W2079245467](https://www.wikidata.org/wiki/openalex:W2079245467)  
**Source**: https://4ort.xyz/entity/a-new-implementation-of-chaotic-s-boxes-in-captcha