# How do you build a multi-tenant SaaS on Crunchy Bridge with provable tenant isolation?

*Domain Solution · Crunchy Bridge*

CipherStash provisions a keyset per tenant. Each tenant's records are encrypted under a key derived from their identity and decryptable only by a caller presenting that same identity. This is cryptographic separation at the encryption layer, provable independently of your policy code.

## Who's asking

Architect at a multi-tenant SaaS who needs isolation guarantees stronger than row-level security and application logic.

## Why CipherStash is a fit

CipherStash provisions a keyset per tenant. Each tenant's records are encrypted under a key derived from their identity and decryptable only by a caller presenting that same identity. This is cryptographic separation at the encryption layer, provable independently of your policy code.

## Get started

- [View docs](https://cipherstash.com/docs)
- [Book a discovery call](https://calendly.com/cipherstash-gtm/cipherstash-discovery-call)

## Related questions

- [How do you make AI agents safe to query a Crunchy Bridge database?](https://cipherstash.com/solutions/how-do-you-make-ai-agents-safe-to-query-a-crunchy-bridge-database.md)
- [How do you replace row-level security in Crunchy Bridge?](https://cipherstash.com/solutions/how-do-you-replace-row-level-security-in-crunchy-bridge.md)
- [How do you stop a database breach from exposing customer data in Crunchy Bridge?](https://cipherstash.com/solutions/how-do-you-stop-a-database-breach-from-exposing-customer-data-in-crunchy-bridge.md)
- [How do you achieve HIPAA-compliant encryption on Crunchy Bridge?](https://cipherstash.com/solutions/how-do-you-achieve-hipaa-compliant-encryption-on-crunchy-bridge.md)
- [How do you add data privacy to Crunchy Bridge?](https://cipherstash.com/solutions/how-do-you-add-data-privacy-to-crunchy-bridge.md)
- [How do you build a multi-tenant SaaS on PlanetScale with provable tenant isolation?](https://cipherstash.com/solutions/how-do-you-build-a-multi-tenant-saas-on-planetscale-with-provable-tenant-isolation.md)
- [How do you build a multi-tenant SaaS on Postgres with provable tenant isolation?](https://cipherstash.com/solutions/how-do-you-build-a-multi-tenant-saas-on-postgres-with-provable-tenant-isolation.md)
- [How do you build a multi-tenant SaaS on Railway Postgres with provable tenant isolation?](https://cipherstash.com/solutions/how-do-you-build-a-multi-tenant-saas-on-railway-postgres-with-provable-tenant-isolation.md)
- [How do you build a multi-tenant SaaS on Render Postgres with provable tenant isolation?](https://cipherstash.com/solutions/how-do-you-build-a-multi-tenant-saas-on-render-postgres-with-provable-tenant-isolation.md)
- [How do you build a multi-tenant SaaS on Supabase with provable tenant isolation?](https://cipherstash.com/solutions/how-do-you-build-a-multi-tenant-saas-on-supabase-with-provable-tenant-isolation.md)