3ee2635d93
* Upgrade JNI interface * Input signatures can be DER or compact format, output signatures are always in compact format * Input public keys can be compressed or uncompressed, output public keys are always uncompressed * Name and parameters match libsecp256k1's * JNI implementation is now straightforward No more ByteBuffers Exceptions are thrown in case of failures * Update src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt * Add public key compression method Co-authored-by: Salomon BRYS <salomon.brys@gmail.com>
87 lines
3.7 KiB
Kotlin
87 lines
3.7 KiB
Kotlin
/*
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* Copyright 2013 Google Inc.
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* Copyright 2014-2016 the libsecp256k1 contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package fr.acinq.secp256k1
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public object NativeSecp256k1 : Secp256k1 {
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override fun verify(signature: ByteArray, data: ByteArray, pub: ByteArray): Boolean {
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return Secp256k1CFunctions.secp256k1_ecdsa_verify(Secp256k1Context.getContext(), signature, data, pub) == 1
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}
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override fun sign(data: ByteArray, sec: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ecdsa_sign(Secp256k1Context.getContext(), data, sec)
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}
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override fun signatureNormalize(sig: ByteArray): Pair<ByteArray, Boolean> {
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val sigout = ByteArray(64)
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val result = Secp256k1CFunctions.secp256k1_ecdsa_signature_normalize(Secp256k1Context.getContext(), sig, sigout)
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return Pair(sigout, result == 1)
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}
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override fun secKeyVerify(seckey: ByteArray): Boolean {
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val result = Secp256k1CFunctions.secp256k1_ec_seckey_verify(Secp256k1Context.getContext(), seckey);
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return result == 1;
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}
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override fun pubkeyCreate(seckey: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_create(Secp256k1Context.getContext(), seckey)
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}
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override fun pubkeyParse(pubkey: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_parse(Secp256k1Context.getContext(), pubkey)
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}
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override fun cleanup() {
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return Secp256k1CFunctions.secp256k1_context_destroy(Secp256k1Context.getContext())
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}
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override fun privKeyNegate(privkey: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_privkey_negate(Secp256k1Context.getContext(), privkey)
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}
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override fun privKeyTweakMul(privkey: ByteArray, tweak: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_privkey_tweak_mul(Secp256k1Context.getContext(), privkey, tweak)
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}
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override fun privKeyTweakAdd(privkey: ByteArray, tweak: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_privkey_tweak_add(Secp256k1Context.getContext(), privkey, tweak)
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}
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override fun pubKeyNegate(pubkey: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_negate(Secp256k1Context.getContext(), pubkey)
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}
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override fun pubKeyTweakAdd(pubkey: ByteArray, tweak: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_tweak_add(Secp256k1Context.getContext(), pubkey, tweak)
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}
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override fun pubKeyTweakMul(pubkey: ByteArray, tweak: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_tweak_mul(Secp256k1Context.getContext(), pubkey, tweak)
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}
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override fun pubKeyAdd(pubkey1: ByteArray, pubkey2: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ec_pubkey_add(Secp256k1Context.getContext(), pubkey1, pubkey2)
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}
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override fun ecdh(seckey: ByteArray, pubkey: ByteArray): ByteArray {
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return Secp256k1CFunctions.secp256k1_ecdh(Secp256k1Context.getContext(), seckey, pubkey)
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}
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override fun ecdsaRecover(sig: ByteArray, message: ByteArray, recid: Int): ByteArray {
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return Secp256k1CFunctions.secp256k1_ecdsa_recover(Secp256k1Context.getContext(), sig, message, recid)
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}
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}
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