Squyr.
Bilateral Cryptographic Data Exchange
Squyr.
Bilateral Cryptographic Data Exchange
Squyr is a bilateral cryptographic infrastructure for sensitive data — patient records, financial documents, identity proofs. Your data never leaves your server unprotected. Two locks on every piece of data. Both parties hold one key each.
Squyr is a cryptographic protocol for protecting sensitive data in motion. Identifiers are hashed client-side using SHA-256. Tokens are encrypted with bilaterally-derived AES-256-GCM keys. Nothing personally identifiable ever crosses between parties.
PHI Shield hashes patient identifiers so HIPAA populations can be exchanged without exposing raw data. SSN Shield cryptographically verifies Social Security Numbers via a challenge-response protocol with a tamper-evident attestation chain. Email Shield scans outgoing messages for PII, redacts sensitive content, and flags or blocks attachments before they leave your network.
The primitives are standard: SHA-256, HKDF-SHA256, AES-256-GCM, Ed25519. All published RFCs. Compatible with standard identity infrastructure.
Squyr was developed by Silver Mountain Ventures, LLC to enable secure data partnerships at production scale while staying compliant with HIPAA, BAA constraints, and state-level health privacy regulations.
Download Whitepaper ↗Hospitals send patient records over email. Lenders exchange tax returns through portals built in 2009. Companies store Social Security numbers because "that's how verification works."
Squyr isn't three separate products — it's one platform with three capabilities. Clone any surface, and the moat stays intact. The Ed25519 keypair that anchors PHI Shield also anchors Email Shield and SSN Shield.
One compliance posture. One audit chain. Three modules. All bilateral.
PHI Shield, Email Shield, and SSN Shield — one Ed25519 bilateral keypair, one audit chain, all running through the same cryptographic infrastructure.