Cryptography

Cryptographic agility is core to Sui. The system supports multiple cryptography algorithms and primitives and can switch between them rapidly.

Signature Verification

Sui supports verification within Move smart contracts through several signature schemes. Signature schemes include Ed25519, Secp256k1 recoverable, Secp256k1 non-recoverable, Secp256r1 non-recoverable, Secp256r1 recoverable, BLS G1, and BLS G2.

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Hashing

Sui supports SHA2-256, SHA3-256, Keccak256, and Blake2b-256 cryptographic hash functions.

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Groth16

Zero-knowledge proofs are used to validate statements without revealing information about the proof's inputs.

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ECVRF

Elliptic curve verifiable random function is a cryptographic algorithm that enables you to generate a random number and provide proof that the number used a secret key for generation.

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Passkey

Sui supports the passkey signature scheme that enables you to sign in to apps and sign transactions using a private key stored securely on a passkey authenticator. It uses the WebAuthn standard.

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