How to add encryption?

[cobalt sundial]

I just finished coding my first complete next js app with next auth. What is the best way to add encryption?

[vast girder]

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[obsidian oar]

for what?

[cobalt sundial]

For stuff like user authentication and sensitive information

[obsidian oar]

for cookies you use libs like jose and sensitive info i think bcrypt

[viral mulch]

in which part do you need encryption?

[wary apex]

i think u can use bcrypt module

if u need more details about bcrypt, i will show u

but in my opinion, for only user authentication and sensitive info, we normally use hash