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author | Torsten Grote <t@grobox.de> | 2020-08-14 17:33:22 -0300 |
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committer | Torsten Grote <t@grobox.de> | 2020-08-14 17:33:22 -0300 |
commit | a307a498dc8a42df129e8eaff591e9144ed96298 (patch) | |
tree | a55182b4793b673e433d0e431e9d971d45c9a6a7 /wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt | |
parent | 2ac13b19a5c7fc3531447333fe1772a78ca35795 (diff) | |
download | wallet-kotlin-a307a498dc8a42df129e8eaff591e9144ed96298.tar.gz wallet-kotlin-a307a498dc8a42df129e8eaff591e9144ed96298.tar.bz2 wallet-kotlin-a307a498dc8a42df129e8eaff591e9144ed96298.zip |
Make the wallet lib actually use the common lib
Diffstat (limited to 'wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt')
-rw-r--r-- | wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt b/wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt deleted file mode 100644 index 0780e45..0000000 --- a/wallet/src/commonMain/kotlin/net/taler/wallet/kotlin/crypto/CryptoImpl.kt +++ /dev/null @@ -1,55 +0,0 @@ -/* - * This file is part of GNU Taler - * (C) 2020 Taler Systems S.A. - * - * GNU Taler is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free Software - * Foundation; either version 3, or (at your option) any later version. - * - * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - * A PARTICULAR PURPOSE. See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> - */ - -package net.taler.wallet.kotlin.crypto - -import net.taler.wallet.kotlin.crypto.CryptoImpl.Companion.toByteArray - -abstract class CryptoImpl : Crypto { - - companion object { - fun Int.toByteArray(): ByteArray { - val bytes = ByteArray(4) - bytes[3] = (this and 0xFFFF).toByte() - bytes[2] = ((this ushr 8) and 0xFFFF).toByte() - bytes[1] = ((this ushr 16) and 0xFFFF).toByte() - bytes[0] = ((this ushr 24) and 0xFFFF).toByte() - return bytes - } - - fun Long.toByteArray() = ByteArray(8).apply { - var l = this@toByteArray - for (i in 7 downTo 0) { - this[i] = (l and 0xFF).toByte() - l = l shr 8 - } - } - } - - override fun kdf(outputLength: Int, ikm: ByteArray, salt: ByteArray, info: ByteArray): ByteArray { - return Kdf.kdf(outputLength, ikm, salt, info, { sha256(it) }, { sha512(it) }) - } - - override fun setupRefreshPlanchet(secretSeed: ByteArray, coinNumber: Int): FreshCoin { - val info = "taler-coin-derivation".encodeToByteArray() - val salt = coinNumber.toByteArray() - val out = kdf(64, secretSeed, salt, info) - val coinPrivateKey = out.copyOfRange(0, 32) - val bks = out.copyOfRange(32, 64) - return FreshCoin(eddsaGetPublic(coinPrivateKey), coinPrivateKey, bks) - } - -} |