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SenseCrypt
Technical library

Identity platforms

SenseCrypt vs Auth0

Auth0 is a developer-focused identity platform with a wide catalog of connections. SenseCrypt is an identity provider built around a single sign-in ceremony, a face scan completed in a companion app on the user's enrolled phone. This page sets out where each one is the better buy, and how to run both at once.

7 sectionsSeventh Sense / SenseCrypt
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01

What are you choosing between?

Auth0 gives an engineering team many ways to sign a person in: passwords, social connections, enterprise connections, one-time codes, passkeys. That range is the product, and it is why Auth0 fits so many applications. SenseCrypt takes the opposite position. One method, with none of the softer paths left standing behind it.

Narrowing authentication methods can reduce exposure to credential attacks. The cited 2026 Verizon DBIR attributes credentials to 28 percent of breaches and reports a median phishing click time under sixty seconds. Reintroducing passwords through recovery also reintroduces password-related risks.

A broad platform supports older methods because customers still use them. Decide whether you need that range or a more focused authentication flow.

Three ways to check the person

The user scans an on-screen QR code and completes the face scan in the companion app, or signs in with a real FIDO2/WebAuthn passkey (ES256) presented by that same app as a roaming authenticator. A webcam variant is available to enterprise customers on a trusted network through sales@seventhsense.ai. This licensed on-premises method processes captures inside the customer deployment and does not add an enrolled-phone possession factor.

Face verification runs on the enrolled phone

On both mobile-app methods, liveness and matching run on the user's own handset. The browser, kiosk or shared desktop being signed in to needs no enrollment, no agent and no driver.

Phishing resistance on the passkey path

A passkey created under FIDO2/WebAuthn is bound to the origin that created it, so an assertion harvested by a lookalike domain will not validate anywhere it matters. That is the precise claim, and it belongs to that path rather than to the platform.

No password to reset, no code to recite

One PIN, issued once, at the single moment a new phone is bound to an account. It reaches the user by email, with a parallel SMS where the record holds a mobile number. Routine sign-in carries no shared secret at all, so neither a caller nor a fake page has anything to ask for.

02

What the server keeps after enrollment

This is the difference that survives a breach, so it is worth reading slowly. IdP retains quantum-safe, sealed, biometric-free, disposable face tokens and their verifier challenges. Standard OIDC/SAML account records, device public keys, sessions, logs and encrypted tenant signing keys also persist. No face images or templates are retained in the documented phone flow. Licensed on-premises Webcam processes captures inside the customer deployment.

The retained face token is quantum-safe, sealed, biometric-free and disposable. No face images or templates are retained in the documented phone flow. Tokens are tenant-bound and stored alongside the required account records. ISO/IEC 24745:2022 sets out those properties for protected biometric references, and ISO/IEC 30136:2018 frames how such protection is measured.

We describe the platform as biometric-blind on that basis. The practical effect is that a SenseCrypt deployment gives a data protection impact assessment less to worry about than the architecture diagram suggests, and gives an exfiltration less to be worth.

Quantum-safe, revocable and renewable face token

The construction uses NIST 140-3 approved symmetric and hash primitives exclusively: AES-256-GCM, HKDF-SHA256, SHA-256. No proprietary or non-approved cryptographic primitives are used anywhere. There is no public-key assumption inside it for a future quantum computer to undo.

Hybrid post-quantum TLS in transit

Connections negotiate hybrid post-quantum TLS (X25519MLKEM768), which addresses the harvest-now-decrypt-later problem that US NSM-10 and the NIST FIPS 203/204/205 series exist to answer.

Patent-pending face tokenization and Face PKI

Face tokenization and Face PKI are patent-pending.

Independent evidence

Face recognition is evaluated in the NIST Face Recognition Technology Evaluation under Seventh Sense's own name, participation since 2021, with the report card at https://pages.nist.gov/frvt/reportcards/11/seventhsense_000.html. Liveness detection is tested by iBeta to ISO/IEC 30107-3 Levels 1 and 2.

03

Which approach fits your requirements?

Both products are identity providers, both speak the same protocols, and both hand your application a token it already knows how to read. A feature count will not settle anything.

What Auth0 has accumulated is years of answers to awkward integration questions, a large connection catalog, and an extensibility model a development team can bend around something unusual. Buy that when the requirement sheet is long and the entries on it vary. Cryptographic tidiness is no substitute for coverage a team can rely on.

SenseCrypt is younger and narrower on purpose. It is the right answer when the problem in front of you is that people can still be talked out of a credential, and the wrong answer when it is almost anything else.

Broad platform or focused sign-in?

Auth0 optimizes for covering every case an application might present. SenseCrypt optimizes for one case having no soft edge. Those are different products that happen to share a category.

Both use standard federation protocols

Because each side issues OIDC, OAuth 2.0 and SAML 2.0, most of the integration code an application already holds carries over untouched. Switching cost accumulates in rollout and support instead.

Plan for enrollment

Every user installs the companion app and binds a phone they will actually carry. Budget that as change management with a helpdesk plan behind it, because it is the honest cost line on a SenseCrypt rollout.

04

Running both, with SenseCrypt behind Auth0

Ripping out the platform that already holds your applications, your users and your audit history is rarely proportionate to a change in sign-in method, and this page is not arguing for it. External identity providers are a supported Auth0 concept, registered over OIDC or SAML 2.0, and SenseCrypt registers as one of them.

Auth0 remains the identity platform in that arrangement, holding the user records, the rules, the application registrations and the session it issues. Only the proof step relocates. A user arriving at Auth0 is passed onward, completes the face ceremony on the enrolled phone, and comes back carrying a standard token or assertion that Auth0 turns into the application session it always issued.

Setup is configuration on both sides rather than software you install: endpoints and metadata, a client registration, a claim mapping, and a rule deciding who takes the new path.

Keep existing application integrations

Applications keep pointing at Auth0. There is no SDK to swap, no redirect URI to update in every service, and no second directory to keep reconciled.

Pilot with one group

Point one application, or one department, at the new path and leave the rest of the population untouched. The support queue answers the enrollment question long before a full rollout has been committed to.

Map the incoming claims

SenseCrypt emits roles and permissions in the token. Auth0 maps them into its own model, and your application keeps enforcing what it already enforced.

05

Protocols, limits and pricing

The protocol surface is not a module licensed on top of the biometric. SenseCrypt is the identity provider, so an application integrates with it the way it integrates with any standards-based provider, and the face ceremony is simply how presence is proven inside that flow. Roles and permissions travel in the token behind a default-closed group gate at sign-in, SCIM 2.0 provisioning and CIBA are part of the same surface, and multi-tenant isolation includes three tenants or custom domains in every account.

Two operating limits are worth stating plainly rather than discovering later. There is no operator-side single sign-on session for end-user authentication: each application sign-in is its own ceremony rather than a ride on a shared cookie, and the admin console is the only place a browser session is kept. Separately, the hash-chained tamper-evident log covers administrative actions in the console, while end-user sign-ins are recorded in a read-only activity stream that is not part of that chain, with no customer-facing endpoint for verifying the chain.

Seats list at a dollar each per month and billing starts at twenty of them, which is where an estimate begins rather than where it ends. Signing keys held as non-exportable keys in a managed key service add twenty dollars per key per month, and the key cannot be copied out by anyone, including us. Beyond the three tenants or custom domains every account includes, each additional one is ten dollars per month. Metering on customer identity deployments counts monthly active users, so a dormant account does not bill. The trial runs thirty days and takes no card.

06

Compare the details

SenseCrypt and Auth0, dimension by dimension
DimensionSenseCryptAuth0
Primary sign-inFace scan in the companion app on an enrolled phoneConfigurable across many connection types, varies by plan
Where face verification runsOn the user's phone for both mobile-app methods; within the customer deployment for licensed on-premises Webcam flows.See vendor documentation
Stored on the server after enrollmentQuantum-safe, sealed, biometric free, disposable face tokens and their verifier challenges. Standard OIDC/SAML account records, device public keys, sessions, logs and encrypted tenant signing keys also persist.See vendor documentation
Phishing resistanceOn the passkey path, via FIDO2/WebAuthn origin bindingVaries by plan and configuration
Federation protocolsOpenID Connect and OAuth 2.0 (RFC 6749), with PKCE (RFC 7636) and pushed authorization requests (RFC 9126); SAML 2.0; SCIM 2.0 (RFC 7644); CIBA; FAPI 2.0, FAPI 2.0 Message Signing and FAPI-CIBA. A backchannel push starts a face check on the enrolled phone.Documented as supported
Use as an external IdPYes, SenseCrypt federates into Auth0 over OIDC or SAML 2.0Accepts external identity providers
Independent testingNIST-evaluated recognition, liveness tested by iBeta to ISO/IEC 30107-3 Levels 1 and 2See vendor documentation
List priceOne dollar per user per month, twenty-seat minimumVaries by plan

Primary sign-in

SenseCrypt
Face scan in the companion app on an enrolled phone
Auth0
Configurable across many connection types, varies by plan

Where face verification runs

SenseCrypt
On the user's phone for both mobile-app methods; within the customer deployment for licensed on-premises Webcam flows.
Auth0
See vendor documentation

Stored on the server after enrollment

SenseCrypt
Quantum-safe, sealed, biometric free, disposable face tokens and their verifier challenges. Standard OIDC/SAML account records, device public keys, sessions, logs and encrypted tenant signing keys also persist.
Auth0
See vendor documentation

Phishing resistance

SenseCrypt
On the passkey path, via FIDO2/WebAuthn origin binding
Auth0
Varies by plan and configuration

Federation protocols

SenseCrypt
OpenID Connect and OAuth 2.0 (RFC 6749), with PKCE (RFC 7636) and pushed authorization requests (RFC 9126); SAML 2.0; SCIM 2.0 (RFC 7644); CIBA; FAPI 2.0, FAPI 2.0 Message Signing and FAPI-CIBA. A backchannel push starts a face check on the enrolled phone.
Auth0
Documented as supported

Use as an external IdP

SenseCrypt
Yes, SenseCrypt federates into Auth0 over OIDC or SAML 2.0
Auth0
Accepts external identity providers

Independent testing

SenseCrypt
NIST-evaluated recognition, liveness tested by iBeta to ISO/IEC 30107-3 Levels 1 and 2
Auth0
See vendor documentation

List price

SenseCrypt
One dollar per user per month, twenty-seat minimum
Auth0
Varies by plan

07

Frequently asked questions

Is SenseCrypt an alternative to Auth0 or an addition to it?

Both patterns work, and the second is the more common starting point. SenseCrypt is a complete identity provider, so applications can federate to it directly over OIDC or SAML 2.0. It can also register behind Auth0 as an external identity provider, which leaves your directory, rules and application registrations untouched and changes only how a user proves presence.

What does SenseCrypt actually store about a user's face?

IdP retains quantum-safe, sealed, biometric-free, disposable face tokens and their verifier challenges. Standard OIDC/SAML account records, device public keys, sessions, logs and encrypted tenant signing keys also persist. No face images or templates are retained in the documented phone flow. Licensed on-premises Webcam processes captures inside the customer deployment.

Is SenseCrypt phishing-resistant?

On the passkey path, yes. Those are real FIDO2/WebAuthn passkeys, and WebAuthn origin binding is what makes a lookalike site unusable, which is the pattern CISA points to in its phishing-resistant MFA guidance. The QR path removes the shared secret instead of binding the origin, so a user has nothing to type into a fake page, but the precise phishing-resistance claim belongs to the passkey path. Phone sign-in also combines a live face check with a key bound to the enrolled device.

Does every user need a phone?

Yes. The companion app on an enrolled phone is required and there is no deviceless mode. What needs no enrollment is the target: the browser, kiosk or desktop the user is signing in to needs no agent, no driver and no prior registration.

Can a user sign in with a laptop webcam instead?

A webcam method exists for enterprise customers on a trusted corporate network, and it is not part of the self-serve product. In that mode liveness and matching run inside the customer's isolated deployment rather than on the user's phone. Contact sales@seventhsense.ai if that is the deployment you need.

What happens when a user loses their phone?

They bind a replacement handset using a one-time PIN that we deliver by email, adding an SMS copy where the account record carries a mobile number. Device binding is the only thing that PIN does. It never appears in a routine sign-in, and because no password exists anywhere in the system, a helpdesk has nothing to reset in the first place. The replacement must also prove a new device key; the account remains bound to the enrolled person through biometric-free, disposable face tokens, and the live face check is still required at sign-in.

What can an auditor see?

Administrative actions in the console are written to a hash-chained, tamper-evident log. End-user sign-ins are recorded separately in a read-only activity stream that is not part of that chain, and there is no customer-facing interface for verifying the chain independently.

Next step

Whether SenseCrypt sits behind Auth0 or in front of your applications depends on what those applications already consume, so the useful first conversation starts from your connection catalog.