GCM has an integrity check built in, which is very useful in crypto. https://crypto.stackexchange.com/questions/2310/what-is-the-difference-between-cbc-and-gcm

GCM has an integrity check built in, which is very useful in crypto. https://crypto.stackexchange.com/questions/2310/what-is-the-difference-between-cbc-and-gcm-mode https://crypto.stackexchange.com/questions/2310/what-is-the-... https://crypto.stackexchange.com/questions/14747/gcm-vs-ctrhmac-tradeoffs https://crypto.stackexchange.com/questions/14747/gcm-vs-ctrh... https://security.stackexchange.com/questions/33569/why-do-you-need-message-authentication-in-addition-to-encryption https://security.stackexchange.com/questions/33569/why-do-yo...