Package net.i2p.crypto.x25519

Implementation of X25519 elliptic curve Diffie-Hellman key exchange for I2P.

This package provides X25519 functionality based on RFC 7748, offering:

• Key Exchange: Secure Diffie-Hellman operations using Curve25519
• Performance: Optimized implementation suitable for high-throughput routing
• Security: Modern elliptic curve cryptography with 128-bit security level
• Compatibility: Standards-compliant implementation for interoperability

X25519 is used throughout I2P for:

• Session key establishment in encrypted tunnels
• Key agreement in garlic routing
• Ephemeral key exchange for forward secrecy

The implementation wraps Noise's Curve25519 DH operations and provides Java Security API compatibility through parameter specifications.

Since 0.9.41.