webauthn::WebAuthn method new_challenge (public)

 <instance of webauthn::WebAuthn> new_challenge [ nbytes ]

Defined in packages/webauthn/tcl/webauthn-procs.tcl

Generate a new cryptographically strong random challenge. The challenge is generated using ns_crypto::randombytes and returned as a base64url-encoded string suitable for use in WebAuthn request/creation options.

Parameters:

nbytes (optional, defaults to "32")

Number of random bytes to generate before encoding (default: 32).

Testcases:

No testcase defined.

Source code:

return [ns_crypto::randombytes -encoding base64url $nbytes]

XQL Not present:

Generic, PostgreSQL, Oracle