Crate solana_ecvrf 

ECVRF-EDWARDS25519-SHA512-TAI (RFC 9381) verification for Solana programs.

A VRF proof is a signature whose output is also a pseudorandom 64-byte value that is unique per (key, input): the prover cannot grind for a favourable output, which is what makes it usable as on-chain randomness.

On target_os = "solana" every primitive is a syscall: sol_curve_* for the group arithmetic and sol_sha512 (SIMD-0512) for hashing. Nothing cryptographic runs in software.

Structs

Proof

pi_string = Gamma || c || s.

PublicKey

An Ed25519 public key Y = x·B, compressed per RFC 8032 §5.1.2. The same bytes as the Solana address of the proving keypair.

Enums

Error

Constants

OUTPUT_LENGTH

PROOF_LENGTH

ptLen + cLen + qLen = 32 + 16 + 32.

PUBLIC_KEY_LENGTH

SUITE

suite_string for ECVRF-EDWARDS25519-SHA512-TAI, RFC 9381 §5.5.

Type Aliases

Output

VRF hash output beta_string.