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/*
* This file is part of LibEuFin.
* Copyright (C) 2024 Taler Systems S.A.
* LibEuFin is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3, or
* (at your option) any later version.
* LibEuFin 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 Affero General
* Public License for more details.
* You should have received a copy of the GNU Affero General Public
* License along with LibEuFin; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>
*/
import org.junit.Assert.assertTrue
import org.junit.Test
import tech.libeufin.common.crypto.CryptoUtil
import tech.libeufin.common.decodeBase64
import tech.libeufin.ebics.XMLUtil
import java.security.KeyPairGenerator
import javax.xml.transform.stream.StreamSource
class XmlUtilTest {
@Test
fun basicSigningTest() {
val doc = XMLUtil.parseIntoDom("""
<myMessage xmlns:ebics="urn:org:ebics:H004">
<ebics:AuthSignature />
<foo authenticate="true">Hello World</foo>
</myMessage>
""".trimIndent().toByteArray().inputStream())
val kpg = KeyPairGenerator.getInstance("RSA")
kpg.initialize(2048)
val pair = kpg.genKeyPair()
val otherPair = kpg.genKeyPair()
XMLUtil.signEbicsDocument(doc, pair.private)
kotlin.test.assertTrue(XMLUtil.verifyEbicsDocument(doc, pair.public))
kotlin.test.assertFalse(XMLUtil.verifyEbicsDocument(doc, otherPair.public))
}
@Test
fun multiAuthSigningTest() {
val doc = XMLUtil.parseIntoDom("""
<myMessage xmlns:ebics="urn:org:ebics:H004">
<ebics:AuthSignature />
<foo authenticate="true">Hello World</foo>
<bar authenticate="true">Another one!</bar>
</myMessage>
""".trimIndent().toByteArray().inputStream())
val kpg = KeyPairGenerator.getInstance("RSA")
kpg.initialize(2048)
val pair = kpg.genKeyPair()
XMLUtil.signEbicsDocument(doc, pair.private)
kotlin.test.assertTrue(XMLUtil.verifyEbicsDocument(doc, pair.public))
}
@Test
fun testRefSignature() {
val classLoader = ClassLoader.getSystemClassLoader()
val docText = classLoader.getResourceAsStream("signature1/doc.xml")
val doc = XMLUtil.parseIntoDom(docText)
val keyStream = classLoader.getResourceAsStream("signature1/public_key.txt")
val keyBytes = keyStream.decodeBase64().readAllBytes()
val key = CryptoUtil.loadRsaPublicKey(keyBytes)
assertTrue(XMLUtil.verifyEbicsDocument(doc, key))
}
}
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