( = TDEA < Triple Data Encryption Algorithm,
"andmete kolmekordse krüpteerimise algoritm")

olemus
standardne plokkšiffer, mis on tuletatud šifrist DES, rakendab igale 64-bitisele plokile kolm korda šǐfri DES algoritmi; võtme pikkus on 168 bitti
= a symmetric-key block cipher, which applies the DES cipher algorithm three times to each data block

ülevaateid
http://www.crypto-it.net/eng/symmetric/3des.html?tab=0
https://en.wikipedia.org/wiki/Triple_DES
https://arxiv.org/pdf/1003.4085.pdf

turvalisus
https://leeneubecker.com/3des-insecurities-pose-risk-to-many-financial-institutions-and-us-military/
https://www.itjungle.com/2016/11/14/tfh111416-story02/
https://www.cryptomathic.com/news-events/blog/3des-is-officially-being-retired