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authorTorsten Grote <t@grobox.de>2020-08-17 09:29:54 -0300
committerTorsten Grote <t@grobox.de>2020-08-17 09:29:54 -0300
commitdade0470c7e378c72ac2f2fd2a623416dadbff10 (patch)
tree083449814b1ad1320677e115f42f9a76125ccd76 /wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt
parenta307a498dc8a42df129e8eaff591e9144ed96298 (diff)
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Provide a blocking API for iOS (until Kotlin 1.4 is out)
and put base crypto into dedicated package (to be split out later).
Diffstat (limited to 'wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt')
-rw-r--r--wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt78
1 files changed, 0 insertions, 78 deletions
diff --git a/wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt b/wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt
deleted file mode 100644
index cbb486a..0000000
--- a/wallet/src/commonMain/kotlin/net/taler/lib/wallet/crypto/Crypto.kt
+++ /dev/null
@@ -1,78 +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.lib.wallet.crypto
-
-internal interface Crypto {
- fun sha256(input: ByteArray): ByteArray
- fun sha512(input: ByteArray): ByteArray
- fun getHashSha512State(): HashSha512State
- fun getRandomBytes(num: Int): ByteArray
- fun eddsaGetPublic(eddsaPrivateKey: ByteArray): ByteArray
- fun ecdheGetPublic(ecdhePrivateKey: ByteArray): ByteArray
- fun createEddsaKeyPair(): EddsaKeyPair
- fun createEcdheKeyPair(): EcdheKeyPair
- fun eddsaSign(msg: ByteArray, eddsaPrivateKey: ByteArray): ByteArray
- fun eddsaVerify(msg: ByteArray, sig: ByteArray, eddsaPub: ByteArray): Boolean
- fun keyExchangeEddsaEcdhe(eddsaPrivateKey: ByteArray, ecdhePublicKey: ByteArray): ByteArray
- fun keyExchangeEcdheEddsa(ecdhePrivateKey: ByteArray, eddsaPublicKey: ByteArray): ByteArray
- fun kdf(outputLength: Int, ikm: ByteArray, salt: ByteArray, info: ByteArray): ByteArray
- fun rsaBlind(hm: ByteArray, bks: ByteArray, rsaPubEnc: ByteArray): ByteArray
- fun rsaUnblind(sig: ByteArray, rsaPubEnc: ByteArray, bks: ByteArray): ByteArray
- fun rsaVerify(hm: ByteArray, rsaSig: ByteArray, rsaPubEnc: ByteArray): Boolean
- fun setupRefreshPlanchet(secretSeed: ByteArray, coinNumber: Int): FreshCoin
-}
-
-interface HashSha512State {
- fun update(data: ByteArray): HashSha512State
- fun final(): ByteArray
-}
-class EddsaKeyPair(val privateKey: ByteArray, val publicKey: ByteArray)
-class EcdheKeyPair(val privateKey: ByteArray, val publicKey: ByteArray)
-data class FreshCoin(val coinPublicKey: ByteArray, val coinPrivateKey: ByteArray, val bks: ByteArray) {
- override fun equals(other: Any?): Boolean {
- if (this === other) return true
- if (other == null || this::class != other::class) return false
- other as FreshCoin
- if (!coinPublicKey.contentEquals(other.coinPublicKey)) return false
- if (!coinPrivateKey.contentEquals(other.coinPrivateKey)) return false
- if (!bks.contentEquals(other.bks)) return false
- return true
- }
-
- override fun hashCode(): Int {
- var result = coinPublicKey.contentHashCode()
- result = 31 * result + coinPrivateKey.contentHashCode()
- result = 31 * result + bks.contentHashCode()
- return result
- }
-}
-
-internal expect object CryptoFactory {
- internal fun getCrypto(): Crypto
-}
-
-private val hexArray = arrayOf('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f')
-
-fun ByteArray.toHexString(): String {
- val hexChars = CharArray(this.size * 2)
- for (j in this.indices) {
- val v = (this[j].toInt() and 0xFF)
- hexChars[j * 2] = hexArray[v ushr 4]
- hexChars[j * 2 + 1] = hexArray[v and 0x0F]
- }
- return String(hexChars)
-}