Your logs show a TLS alert: handshake failure. Contracts between systems exist only when trust is proven, and trust here is the domain of precise TLS configuration. For Ramp contracts, that precision is non‑negotiable.
Understanding Ramp Contracts TLS Configuration
Ramp contracts rely on secure channels to transmit financial and operational data. TLS provides encryption, authentication, and integrity through certificates and cipher suites. If the TLS configuration is wrong, the contract endpoint will reject your request or expose sensitive data. This means every detail matters: supported protocol versions, certificate validity, key lengths, algorithm choices, and proper hostname verification.
Protocol Versions
Always disable deprecated protocols like TLS 1.0 and 1.1. Ramp contract endpoints often require TLS 1.2 or TLS 1.3. For maximum compatibility without sacrificing security, enable only TLS 1.2+ and keep your libraries up to date.
Cipher Suites
Select cipher suites that match Ramp’s published requirements. ECDHE-based key exchange combined with AES-GCM encryption is standard. Remove suites that use static RSA or CBC mode to reduce exposure to known attacks. Test using openssl s_client or an automated scanner to confirm.
Certificates
Certificates must be signed by trusted CAs. Handle renewal before expiration. Match the certificate’s Common Name (CN) or Subject Alternative Name (SAN) exactly to the Ramp contracts domain. Enable strict certificate validation to prevent man-in-the-middle risks.