package schnorr

// BIP-340 Schnorr signatures via native JS BigInt.
// The pure-Go secp256k1 implementation uses [4]uint64 field elements which
// lose precision when compiled to JS (float64 can only represent integers
// up to 2^53 exactly). This jsbridge delegates to schnorr.mjs which uses
// JS BigInt for exact 256-bit arithmetic.

// PubKeyFromSecKey derives the x-only public key from a secret key.
// Returns (pubkey, ok).
func PubKeyFromSecKey(seckey []byte) ([]byte, bool) { panic("jsbridge") }

// SignSchnorr creates a BIP-340 Schnorr signature.
// All inputs are 32 bytes. Returns (sig [64]byte, ok).
func SignSchnorr(seckey, msg, auxRand []byte) ([]byte, bool) { panic("jsbridge") }

// VerifySchnorr verifies a BIP-340 Schnorr signature.
// pubkey: 32 bytes, msg: 32 bytes, sig: 64 bytes.
func VerifySchnorr(pubkey, msg, sig []byte) bool { panic("jsbridge") }

// ECDH computes the shared secret x-coordinate.
// seckey: 32 bytes, pubkey: 32 bytes (x-only).
func ECDH(seckey, pubkey []byte) ([]byte, bool) { panic("jsbridge") }

// SHA256Sum computes the SHA-256 hash of data.
// Returns the 32-byte hash.
func SHA256Sum(data []byte) []byte { panic("jsbridge") }

// ScalarAddModN adds two 32-byte big-endian scalars modulo secp256k1 order N.
// Returns (result, ok). ok is false if the result is zero.
func ScalarAddModN(a, b []byte) ([]byte, bool) { panic("jsbridge") }

// CompressedPubKey derives the 33-byte SEC1 compressed public key from a secret key.
// Returns (compressed, ok).
func CompressedPubKey(seckey []byte) ([]byte, bool) { panic("jsbridge") }