It dates back to when Workers only supported 50ms CPU time limits. Back then 100k iterations was enough to exceed the 50ms budget.
Now that the limit is 5 minutes this is pretty silly, but since PBKDF2 is considered obsolete and not often used in new code, I guess fixing it never really came up.
I would accept a PR to increase the constant to 1M, or higher with a good argument (but most recommendations I see for iteration count are <1M). Constant defined here:
Sorry, this is a bug.
It dates back to when Workers only supported 50ms CPU time limits. Back then 100k iterations was enough to exceed the 50ms budget.
Now that the limit is 5 minutes this is pretty silly, but since PBKDF2 is considered obsolete and not often used in new code, I guess fixing it never really came up.
I would accept a PR to increase the constant to 1M, or higher with a good argument (but most recommendations I see for iteration count are <1M). Constant defined here:
https://github.com/cloudflare/workerd/blob/main/src/workerd/...
Also FWIW I've had success with argon2 in workers via wasm.
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