def secret
bend-collections-laws-crypto@1.0.0.0 · src/crypto/secp256k1/schnorr.bend:97
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/schnorr.bend as Schnorr
import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/scalar.bend as S
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/bytes.bend as B
97def secret(+sk: List<&2, U32>) -> Maybe<&2, List<&2, Nat>>:
98 +d = B.of_be(sk)
99 secret_if(d, Bool.and(B.has_len(32n, sk), Bool.and(Bool.not(S.is_zero(d)), S.lt_n(d))))