Curve25519
Xiphera’s offering for Asymmetric Cryptography includes solutions for key exchange, digital signatures, and public-key encryption.
About the product
Xiphera offers two main IP Cores for public-key exchange and digital signatures. Both the cores are designed for easy integration with FPGA- and ASIC-based designs in a vendor-agnostic design methodology, and the functionality does not rely on any FPGA manufacturer-specific features.
- Compact Curve25519 Key Exchange IP core (XIP4001C): a very compact Intellectual Property (IP) core designed for efficient key exchange using the X25519 protocol.
- Compact Curve25519 Key Exchange and Digital Signature IP core (XIP4003C): a very compact IP core designed for efficient X25519 key exchange and Ed25519-based Edwards-curve Digital Signature Algorithm (EdDSA).
Key features
- Constant Latency: The execution time of both our Curve25519 IP Cores is independent of the key value, and consequently provides protection against timing-based side-channel attacks.
- Performance: Despite their small size, both our Curve25519 IP Cores can support more than 100 key exchange or digital signature operations per second.
- Standard Compliance:
- Compact Curve25519 Key Exchange IP core (XIP4001C) is compliant with RFC7748, and can be used as a part of many public-key protocols including IKEv2 (RFC 8031) and TLS 1.3 (RFC 8446).
- Compact Curve25519 Key Exchange and Digital Signature IP core (XIP4003C) is compliant with RFC7748, RFC8032, and the draft vesion of FIPS 186-5. XIP4003C can be used as a part of many public-key protocols including IKEv2 (RFC 8031) and TLS 1.3 (RFC 8446).
For more details, including FPGA resources & peak performance as well as ordering instructions, open the full product briefs in PDF. Contact us here, and we’ll get back to you as soon as possible.