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Updated on 2026-08-14

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Tangem 2025-11-05 14:01:26 +03:00
commit 9aacdb2ed3
695 changed files with 22022 additions and 5116 deletions
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46
domain/card/src/main/kotlin/com/tangem/domain/card/BackupValidator.kt Normal file
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@ -0,0 +1,46 @@
package com.tangem.domain.card
import com.tangem.common.card.EllipticCurve
import com.tangem.domain.card.configs.CardConfig
import com.tangem.domain.models.scan.CardDTO
object BackupValidator {
fun isValidFull(cardDTO: CardDTO): Boolean {
return validateBackupStatus(cardDTO) && validateCurves(cardDTO)
}
fun isValidBackupStatus(cardDTO: CardDTO): Boolean {
return validateBackupStatus(cardDTO)
}
private fun validateCurves(cardDTO: CardDTO): Boolean {
val config = CardConfig.createConfig(cardDTO)
// / Since the curve `bls12381_G2_AUG` was added later into first generation of wallets,
// we cannot determine whether this curve is missing due to an error or because the user
// did not want to recreate the wallet.
val expectedCurves = config.mandatoryCurves
.filterNot { it == EllipticCurve.Bls12381G2Aug }
val curves = cardDTO.wallets.map { it.curve }
for (expectedCurve in expectedCurves) {
val cardCurvesCount = curves.count { it == expectedCurve }
// missing curve
if (cardCurvesCount == 0) {
return false
}
// duplicated curve
if (cardCurvesCount > 1) {
return false
}
}
return true
}
private fun validateBackupStatus(cardDTO: CardDTO): Boolean {
val backupStatus = cardDTO.backupStatus
backupStatus ?: return true // for card with null backup status, validation should always returns true
return backupStatus !is CardDTO.BackupStatus.CardLinked
}
}

2
domain/card/src/main/kotlin/com/tangem/domain/card/common/visa/VisaUtilities.kt
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@ -3,6 +3,7 @@ package com.tangem.domain.card.common.visa
import com.tangem.blockchain.common.Blockchain
import com.tangem.blockchain.common.derivation.DerivationStyle
import com.tangem.common.card.FirmwareVersion
import com.tangem.crypto.hdWallet.DerivationPath
import com.tangem.domain.models.scan.CardDTO
private const val VISA_BATCH_START = "AE"
@ -16,6 +17,7 @@ object VisaUtilities {
val visaDefaultDerivationPath
get() = visaBlockchain.derivationPath(DerivationStyle.V3)
val customDerivationPath = DerivationPath("m/44'/60'/999999'/0/0")
fun visaDefaultDerivationPath(style: DerivationStyle) = visaBlockchain.derivationPath(style)

6
domain/card/src/main/kotlin/com/tangem/domain/card/configs/Wallet2CardConfig.kt
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@ -212,9 +212,9 @@ data object Wallet2CardConfig : CardConfig {
Blockchain.HyperliquidTestnet -> EllipticCurve.Secp256k1
Blockchain.Quai -> EllipticCurve.Secp256k1
Blockchain.QuaiTestnet -> EllipticCurve.Secp256k1
// Blockchain.Linea -> EllipticCurve.Secp256k1
// Blockchain.LineaTestnet -> EllipticCurve.Secp256k1
// Blockchain.ArbitrumNova -> EllipticCurve.Secp256k1
Blockchain.Linea -> EllipticCurve.Secp256k1
Blockchain.LineaTestnet -> EllipticCurve.Secp256k1
Blockchain.ArbitrumNova -> EllipticCurve.Secp256k1
}
}
}

6
domain/card/src/test/java/com/tangem/domain/card/configs/Wallet2CardConfigTest.kt
View file

@ -168,9 +168,9 @@ class Wallet2CardConfigTest {
Blockchain.HyperliquidTestnet to EllipticCurve.Secp256k1,
Blockchain.Quai to EllipticCurve.Secp256k1,
Blockchain.QuaiTestnet to EllipticCurve.Secp256k1,
// Blockchain.Linea to EllipticCurve.Secp256k1,
// Blockchain.LineaTestnet to EllipticCurve.Secp256k1,
// Blockchain.ArbitrumNova to EllipticCurve.Secp256k1,
Blockchain.Linea to EllipticCurve.Secp256k1,
Blockchain.LineaTestnet to EllipticCurve.Secp256k1,
Blockchain.ArbitrumNova to EllipticCurve.Secp256k1,
)
@Test