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Passkeys WebAuthn Standards

⬢ LIVELLO 3Tecniche
Alto
Impatto sullo stipendio
2 mesi
Tempo di apprendimento
Difficile
Difficoltà
4
Carriere
In sintesi

Passkeys replace passwords. User signs up → device generates cryptographic key pair → public key stored on server, private key stays on device (never shared). Login: server sends challenge → device signs with private key → server verifies. No passwords = no phishing, no reuse, no breaches. Mastery takes 6-8 weeks. Security teams and fintech firms pushing passkey adoption hard. Engineers implementing passkeys command 20-30% premium because they're solving authentication (broken for 30 years).

Cos'è Passkeys WebAuthn Standards

Passkeys are a passwordless authentication method using cryptography and WebAuthn/FIDO2 standards. Instead of username + password, user signs up with face/fingerprint/PIN on their device. Device generates public/private key pair. Public key sent to server. Later, login involves device cryptographically signing a challenge from server. Server verifies signature with public key. User is authenticated. No password ever stored or transmitted. Advantages: phishing-resistant (no password to steal), breach-proof (private key never leaves device), passwordless (no fatigue), fast (biometric login ~2 sec).

🔧 STRUMENTI ED ECOSISTEMA
WebAuthn APIsFIDO2 librariesPasswordless.devAuth0 passkeysPlatform authenticatorsSecurity keys (YubiKey)Cryptography librariesTesting frameworks

💰 Stipendio per regione

RegioneLivello baseMidLivello esperto
USA$95k$160k$240k
UK£58k£100k£150k
EU€65k€110k€160k
CANADAC$95kC$165kC$250k

❓ Domande frequenti

Do users need a special hardware key for passkeys?
No. Platform authenticators (Face ID, Touch ID, Windows Hello) work on most phones/computers. Users who want extra security can buy security keys (YubiKey ~$50). Both work with WebAuthn. Passkeys = passwordless; optional hardware key for even more security.
What happens if a user loses their device with passkey?
Passkey is tied to device. Device lost = can't use that passkey. Solution: backup/sync passkeys (iCloud Keychain, Google Password Manager, Bitwarden). User recovers account via email or recovery codes. Plan for device loss upfront.
Is WebAuthn supported everywhere?
98% of browsers (Chrome, Firefox, Safari, Edge) + iOS/Android support WebAuthn. Older devices/browsers don't. Fallback: email sign-up link (passwordless but less secure) or password. Don't force passkeys on everyone yet.
How do I migrate users from passwords to passkeys?
Gradual rollout: (1) users can add passkey as second factor, (2) users can sign in with passkey, (3) users can remove password, (4) passwordless by default. Timeline: 6-12 months. Force too fast = churn.
What if a website using my passkey is hacked?
Server stores public key, not private key. Hack doesn't expose private key. Attacker can't use that passkey to access your account. Server breach ≠ credential compromise (unlike password breaches). Way safer.

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