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package cryptostore
import (
"github.com/pkg/errors"
crypto "github.com/tendermint/go-crypto"
)
var (
// GenEd25519 produces Ed25519 private keys
GenEd25519 Generator = GenFunc(genEd25519)
// GenSecp256k1 produces Secp256k1 private keys
GenSecp256k1 Generator = GenFunc(genSecp256)
)
// Generator determines the type of private key the keystore creates
type Generator interface {
Generate(secret []byte) crypto.PrivKey
}
// GenFunc is a helper to transform a function into a Generator
type GenFunc func(secret []byte) crypto.PrivKey
func (f GenFunc) Generate(secret []byte) crypto.PrivKey {
return f(secret)
}
func genEd25519(secret []byte) crypto.PrivKey {
return crypto.GenPrivKeyEd25519FromSecret(secret).Wrap()
}
func genSecp256(secret []byte) crypto.PrivKey {
return crypto.GenPrivKeySecp256k1FromSecret(secret).Wrap()
}
func getGenerator(algo string) (Generator, error) {
switch algo {
case crypto.NameEd25519:
return GenEd25519, nil
case crypto.NameSecp256k1:
return GenSecp256k1, nil
default:
return nil, errors.Errorf("Cannot generate keys for algorithm: %s", algo)
}
}
func getGeneratorByType(typ byte) (Generator, error) {
switch typ {
case crypto.TypeEd25519:
return GenEd25519, nil
case crypto.TypeSecp256k1:
return GenSecp256k1, nil
default:
return nil, errors.Errorf("Cannot generate keys for algorithm: %X", typ)
}
}