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Cryptographic Engineering

Security Architecture & Audits

At Shinrai Apps and our parent engineering division Shinrai Ops, trust is verified mathematically through cryptographic proofs, hardware-bound isolation, and public disclosure.

Hardware Keystore

Secrets never exist unencrypted in device RAM or disk. Master keys are anchored within Android StrongBox Keymaster or Apple Secure Enclave coprocessors.

Zero-Knowledge Primitives

Passphrases and encryption seeds are derived locally with Argon2id memory-hard algorithms. Our engineers never possess the keys to decrypt your files.

Mutual TLS (mTLS)

All cloud integrations with shinraiops.com utilize client certificate authentication, preventing man-in-the-middle attacks and impersonation.

Cryptographic Standards Deployed

DomainAlgorithm & PrimitiveKey Length / SpecificationImplementation
Local Vault EncryptionAES-GCM / ChaCha20-Poly1305256-bit symmetricHardware Keystore
Key Derivation (KDF)Argon2id / PBKDF2-HMAC-SHA25664MB memory cost, 4 iterationsNative Rust Core
Network TransportTLS 1.3 with HSTS PinningX25519 & ECDSA P-256Strict Certificate Pinning
Two-Factor AuthenticationRFC 6238 TOTP & RFC 4226 HOTPSHA-1 / SHA-256 / SHA-512Local Sandbox Only
Responsible Vulnerability Disclosure Program

We welcome vulnerability reports from independent security researchers. If you identify a potential security vulnerability in any of our mobile applications, APIs, or infrastructure, please report it immediately:

Security Inquiries & PGP Submissions:
security@shinraiops.com
PGP Key Fingerprint: 3F9A 8E2B C104 5D99 87F2 0E12 4A3B 7F9E 2D8C 11B4

We commit to acknowledging your submission within 24 hours and providing status updates throughout the remediation process.