Org.BouncyCastle.Crypto.Parameters.X25519PublicKeyParameters
X25519 public key (RFC 7748). Holds the 32-byte u-coordinate of the peer's curve point. The
encoding is stored verbatim; validation of the point is performed during scalar multiplication
in the agreement primitive.
Length in bytes of an X25519 public key encoding (32).
Construct from a 32-byte buffer holding the encoded u-coordinate.
Read the 32-byte encoded u-coordinate from input.
Write the 32-byte encoded u-coordinate into buf at off.
Return a fresh copy of the 32-byte encoded u-coordinate.