Module types

Implements basic cryptography-related types based on primitives, such as Hash, PublicKey and Signature.

Structs

Challenge

Natural extension of the Curve Point to the Proof-of-Relay challenge. Proof-of-Relay challenge is a secp256k1 curve point.

CompactOffchainPublicKey

Compact representation of OffchainPublicKey suitable for use in enums.

CompressedPublicKey

Represents a compressed serializable extension of the PublicKey using the secp256k1 curve.

CurvePoint

Represents an elliptic curve point on the secp256k1 curve It stores the compressed (and optionally also the uncompressed) form.

HalfKey

Represents a half-key used for the Proof-of-Relay.

HalfKeyChallenge

Represents a challenge for the half-key in Proof of Relay. Half-key challenge is equivalent to a secp256k1 curve point. Therefore, HalfKeyChallenge can be obtained from a HalfKey.

Hash

Represents an Ethereum 256-bit hash value This implementation instantiates the hash via Keccak256 digest.

OffchainPublicKey

Represents an Ed25519 public key.

OffchainSignature

Represents an EdDSA signature using Ed25519 Edwards curve.

PublicKey

Represents a secp256k1 public key.

Response

Contains a response upon ticket acknowledgement It is equivalent to a non-zero secret scalar on secp256k1 (EC private key).

Signature

Represents an ECDSA signature based on the secp256k1 curve with a recoverable public key. This signature encodes the 2-bit recovery information into the uppermost bits from MSB of the S value, which are never used by this ECDSA instantiation over secp256k1. The instance holds the byte array consisting of R and S values with the recovery bit already embedded in S.

SimplePseudonym

Represents a simple UUID-like pseudonym consisting of 10 bytes.

Constants

PACKET_TAG_LENGTH

Length of a packet tag

Traits

Pseudonym

Pseudonym used to identify the creator of a SURB. This allows indexing SURB and LocalSURBEntry at both parties.

Type Aliases

PacketTag

Represents a fixed size packet verification tag