How do antiforgery tokens protect form posts?
PICTURE THIS: A SENTENCE BECOMES TOKENS
The model does not read letters like humans. It reads these pieces, then predicts the next one.
Simple meaning
They ensure the post came from your page, blocking CSRF.
WHY — MVC instead of guessing?
Why interviewers care about MVC:
question about MVC.
trade-offs, and what you would actually do on a .NET MVC project - not buzzwords.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens with tokens?
Before the model can read a sentence, it goes through these steps:
- 1They ensure the post
came from your page, blocking CSRF.
- 2Token IDs
Tag helpers emit the token.
- 3APIs using cookies need
the same care.
- 4Context mix
Attention looks at nearby tokens together.
- 5Next token
The model scores what should come next.
- 6Decode
IDs turn back into readable text.
EXAMPLE — See it in action
Let's see how a real sentence is tokenized (tokens may vary by model):
Note: Actual tokens and IDs depend on the tokenizer (e.g., GPT, Llama, etc.).
Key takeaway
They ensure the post came from your page, blocking CSRF. Tag helpers emit the token.