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Updated on 2026-08-14

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This commit is contained in:
Tangem 2020-04-13 07:40:19 +00:00
commit 0ce9d71a2a
4 changed files with 17 additions and 11 deletions
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2
tangem-core/src/main/java/com/tangem/CardSession.kt
View file

@ -208,7 +208,7 @@ class CardSession(
when (result) {
is CompletionResult.Success -> {
val uid = result.data.uid
val protocolKey = environment.pin1.calculateSha256().pbkdf2Hash(uid, 50)
val protocolKey = environment.pin1.pbkdf2Hash(uid, 50)
val secret = encryptionHelper.generateSecret(result.data.sessionKeyB)
val sessionKey = (secret + protocolKey).calculateSha256()
environment.encryptionKey = sessionKey

12
tangem-core/src/main/java/com/tangem/SessionEnvironment.kt
View file

@ -14,8 +14,8 @@ import com.tangem.crypto.CryptoUtils.generatePublicKey
* @property terminalKeys generated terminal keys used in Linked Terminal feature.
*/
data class SessionEnvironment(
val pin1: String = DEFAULT_PIN,
val pin2: String = DEFAULT_PIN2,
var pin1: ByteArray = DEFAULT_PIN.calculateSha256(),
var pin2: ByteArray = DEFAULT_PIN2.calculateSha256(),
var card: Card? = null,
val terminalKeys: KeyPair? = null,
var encryptionMode: EncryptionMode = EncryptionMode.NONE,
@ -23,6 +23,14 @@ data class SessionEnvironment(
val cvc: ByteArray? = null
) {
fun setPin1(pin1: String) {
this.pin1 = pin1.calculateSha256()
}
fun setPin2(pin2: String) {
this.pin2 = pin2.calculateSha256()
}
companion object {
const val DEFAULT_PIN = "000000"
const val DEFAULT_PIN2 = "000"

2
tangem-core/src/main/java/com/tangem/common/tlv/TlvTag.kt
View file

@ -125,7 +125,7 @@ enum class TlvTag(val code: Int) {
fun valueType(): TlvValueType {
return when (this) {
CardId, Batch, CrExKey -> TlvValueType.HexString
Pin, Pin2, NewPin, NewPin2, NewPin3 -> TlvValueType.HexStringToHash
NewPin, NewPin2, NewPin3 -> TlvValueType.HexStringToHash
ManufactureId, Firmware, IssuerId, BlockchainId, TokenSymbol, TokenContractAddress ->
TlvValueType.Utf8String
CurveId -> TlvValueType.EllipticCurve

12
tangem-core/src/test/java/com/tangem/common/apdu/CommandApduTest.kt
View file

@ -1,9 +1,7 @@
package com.tangem.common.apdu
import com.google.common.truth.Truth.assertThat
import com.tangem.common.extensions.calculateSha256
import com.tangem.common.extensions.toHexString
import com.tangem.common.tlv.Tlv
import com.tangem.SessionEnvironment
import com.tangem.common.tlv.TlvBuilder
import com.tangem.common.tlv.TlvTag
import org.junit.Test
@ -13,9 +11,9 @@ class CommandApduTest {
@Test
fun `simple READ command to bytes`() {
val pin = "000000"
val sessionEnvironment = SessionEnvironment()
val tlvBuilder = TlvBuilder()
tlvBuilder.append(TlvTag.Pin, pin)
tlvBuilder.append(TlvTag.Pin, sessionEnvironment.pin1)
val commandApdu = CommandApdu(
Instruction.Read,
tlvBuilder.serialize()
@ -30,13 +28,13 @@ class CommandApduTest {
@Test
fun `READ with terminal key to bytes`() {
val pin = "000000"
val sessionEnvironment = SessionEnvironment()
val terminalPublicKey = byteArrayOf(4, 80, -122, 58, -42, 74, -121, -82, -118, 47, -24, 60,
26, -15, -88, 64, 60, -75, 63, 83, -28, -122, -40, 81, 29, -83, -118, 4, -120, 126,
91, 35, 82, 44, -44, 112, 36, 52, 83, -94, -103, -6, -98, 119, 35, 119, 22, 16, 58,
-68, 17, -95, -33, 56, -123, 94, -42, -14, -18, 24, 126, -100, 88, 43, -90)
val tlvBuilder = TlvBuilder()
tlvBuilder.append(TlvTag.Pin, pin)
tlvBuilder.append(TlvTag.Pin, sessionEnvironment.pin1)
tlvBuilder.append(TlvTag.TerminalPublicKey, terminalPublicKey)
val commandApdu = CommandApdu(
Instruction.Read,