How to generate a public/private key pair in the user's browser, This key must be: temporary (not saved for ever, valid only for the current session). generated in a cross browser/system manner without prompting the user for any input. allow access to the public key's hash for validation purposes. I tried using <keygen> but it requires using forms and user intervention.

Reputation: 139

How to generate temporary public-key using html5

How to generate a public/private key pair in the user's browser,

This key must be:

temporary (not saved for ever, valid only for the current session).
generated in a cross browser/system manner without prompting the user for any input.
allow access to the public key's hash for validation purposes.

I tried using <keygen> but it requires using forms and user intervention.

Upvotes: 3

Reputation: 10695

Consider using WebCrypto

Specifically, crypto.subtle.generateKey will do the key generation.

The key can be temporary as long as you discard it securely and/or invalidate it after its desired validity period has expired. Depending on how your system works, you may want to validate the expiry/validity of a given key by rolling it into the hash.
Here is a tutorial which offers a cross-browser solution.
Hashing the key (and/or other data) can be done using other parts of the WebCrypto API (see crypto.subtle.digest)

Upvotes: 2