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Lit Protocol supports a wide range of elliptic curves and signing schemes, all securely implemented using threshold cryptography and threshold consensus within a trusted execution environment (TEE).

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Supported Elliptic Curves and Signing Schemes

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Supported Chains

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secp256k1 (K256) with ECDSA

Bitcoin Ecosystem:
  • Bitcoin (BTC) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Bitcoin Cash (BCH) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Bitcoin SV (BSV) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Litecoin (LTC) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Dogecoin (DOGE) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Zcash (ZEC) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Dash (DASH) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Decred (DCR) - CurveType::K256, SigningScheme::EcdsaK256Sha256
Ethereum Ecosystem:
  • Ethereum (ETH) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Ethereum Classic (ETC) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Polygon (MATIC) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Binance Smart Chain (BNB) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Avalanche (AVAX) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Fantom (FTM) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Arbitrum - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Optimism - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Base - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • zkSync - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Linea - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Scroll - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Gnosis Chain (xDai) - CurveType::K256, SigningScheme::EcdsaK256Sha256
Cosmos Ecosystem:
  • Cosmos (ATOM) - CurveType::K256, SigningScheme::EcdsaK256Sha256
Other secp256k1 Chains:
  • Tron (TRX) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • VeChain (VET) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • EOS - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Theta Network (THETA) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Qtum (QTUM) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Zilliqa (ZIL) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • ICON (ICX) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • DigiByte (DGB) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Komodo (KMD) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Verge (XVG) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Ravencoin (RVN) - CurveType::K256, SigningScheme::EcdsaK256Sha256
  • Horizen (ZEN) - CurveType::K256, SigningScheme::EcdsaK256Sha256

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secp256k1 (K256) with Schnorr

  • Bitcoin (Taproot) - CurveType::K256, SigningScheme::SchnorrK256Taproot

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P-256 (secp256r1) with ECDSA

  • Flow - CurveType::P256, SigningScheme::EcdsaP256Sha256
  • NEO - CurveType::P256, SigningScheme::EcdsaP256Sha256
  • Ontology (ONT) - CurveType::P256, SigningScheme::EcdsaP256Sha256
  • Hyperledger Fabric - CurveType::P256, SigningScheme::EcdsaP256Sha256
  • Tezos (optional) - CurveType::P256, SigningScheme::EcdsaP256Sha256
  • WebAuthn / Passkeys - CurveType::P256, SigningScheme::EcdsaP256Sha256

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P-384 (secp384r1) with ECDSA

  • Enterprise PKI systems - CurveType::P384, SigningScheme::EcdsaP384Sha384
  • Government and high-security applications - CurveType::P384, SigningScheme::EcdsaP384Sha384

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Ed25519 with EdDSA (Schnorr)

  • Solana (SOL) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Stellar (XLM) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Cardano (ADA) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Algorand (ALGO) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Hedera Hashgraph (HBAR) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Elrond (EGLD) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Tezos (optional) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Ripple (XRP, optional) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • NEM (XEM) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Waves (WAVES) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Lisk (LSK) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Nano (NANO) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Siacoin (SC) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512
  • Monero (XMR, variant) - CurveType::Ed25519, SigningScheme::SchnorrEd25519Sha512

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Ristretto25519 with Schnorr/Schnorrkel

  • Polkadot (DOT, sr25519) - CurveType::Ristretto25519, SigningScheme::SchnorrkelSubstrate
  • Kusama (KSM, sr25519) - CurveType::Ristretto25519, SigningScheme::SchnorrkelSubstrate
  • All Polkadot Parachains (sr25519) - CurveType::Ristretto25519, SigningScheme::SchnorrkelSubstrate
  • All Substrate-based chains (sr25519) - CurveType::Ristretto25519, SigningScheme::SchnorrkelSubstrate

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Ed448 with Schnorr

  • Research and experimental protocols - CurveType::Ed448, SigningScheme::SchnorrEd448Shake256
  • High-security government applications - CurveType::Ed448, SigningScheme::SchnorrEd448Shake256

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RedJubjub with Schnorr

  • Zcash (Sapling shielded transactions) - CurveType::RedJubjub, SigningScheme::SchnorrRedJubjubBlake2b512

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RedDecaf377 with Schnorr (RedDSA)

  • Penumbra - CurveType::RedDecaf377, SigningScheme::SchnorrRedDecaf377Blake2b512

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BLS12-381 with BLS Signatures

  • Ethereum (Consensus Layer / Beacon Chain) - CurveType::BLS, SigningScheme::Bls12381
  • Filecoin (FIL) - CurveType::BLS, SigningScheme::Bls12381
  • Chia (XCH) - CurveType::BLS, SigningScheme::Bls12381
  • Dfinity (ICP) - CurveType::BLS, SigningScheme::Bls12381

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Key Derivation

Key derivation is done additively and uses all 10 root keys per curve to derive child keys, based on Groth and Shoup 2022.