io.p8e.crypto.PBSigner.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of p8e-common Show documentation

A collection of services and libraries that iteract and run Provenance Java based contracts.

The newest version!

package io.provenance.engine.crypto

import io.p8e.crypto.Hash
import io.provenance.pbc.clients.StdPubKey
import io.provenance.pbc.clients.StdSignature
import org.kethereum.crypto.getCompressedPublicKey
import org.kethereum.crypto.impl.ec.EllipticCurveSigner
import org.kethereum.model.ECKeyPair

object PbSigner {
    fun signerFor(keyPair: ECKeyPair): (ByteArray) -> List = { bytes ->
        bytes.let {
            Hash.sha256(it)
        }.let {
            StdSignature(
                pub_key = StdPubKey("tendermint/PubKeySecp256k1", keyPair.getCompressedPublicKey()),
                signature = EllipticCurveSigner().sign(it, keyPair.privateKey.key, true).encodeAsBTC()
            )
        }.let {
            listOf(it)
        }
    }
}