diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
index 2fb043f7bd..9793a62fe6 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
@@ -264,6 +264,10 @@ const val permissionsField = "permissions"
 const val typeField = "type"
 const val valueField = "value"
 
+const val dataField = "data"
+const val hashField = "hash"
+const val secretField = "secret"
+
 const val pointField = "point"
 const val xShiftField = "x_shift"
 const val yShiftField = "y_shift"
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/Credentials.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/Credentials.kt
new file mode 100644
index 0000000000..9eecfdc567
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/Credentials.kt
@@ -0,0 +1,5 @@
+package com.github.insanusmokrassar.TelegramBotAPI.types.passport.credentials
+
+data class Credentials(
+
+)
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/common/FileCredentials.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/common/FileCredentials.kt
new file mode 100644
index 0000000000..c8ad78354c
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/credentials/common/FileCredentials.kt
@@ -0,0 +1,6 @@
+package com.github.insanusmokrassar.TelegramBotAPI.types.passport.credentials.common
+
+data class FileCredentials(
+    val fileHash: String,
+    val secret: String
+)
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/raw/EncryptedCredentials.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/raw/EncryptedCredentials.kt
new file mode 100644
index 0000000000..bef806c970
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/passport/raw/EncryptedCredentials.kt
@@ -0,0 +1,15 @@
+package com.github.insanusmokrassar.TelegramBotAPI.types.passport.raw
+
+import com.github.insanusmokrassar.TelegramBotAPI.types.*
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class EncryptedCredentials(
+    @SerialName(dataField)
+    val data: String,
+    @SerialName(hashField)
+    val hash: String,
+    @SerialName(secretField)
+    val secret: String
+)
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/DecryptSecret.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/DecryptSecret.kt
new file mode 100644
index 0000000000..956235fb93
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/DecryptSecret.kt
@@ -0,0 +1,11 @@
+package com.github.insanusmokrassar.TelegramBotAPI.utils.crypto
+
+import com.soywiz.krypto.AES
+import com.soywiz.krypto.Padding
+
+fun decryptSecret(
+    privateKey: ByteArray,
+    encryptedSecret: ByteArray
+): ByteArray {
+    AES.decryptAes128Cbc(privateKey, Padding.PKCS7Padding)
+}
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/Decryptor.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/Decryptor.kt
new file mode 100644
index 0000000000..4976a736be
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/Decryptor.kt
@@ -0,0 +1,20 @@
+package com.github.insanusmokrassar.TelegramBotAPI.utils.crypto
+
+import com.soywiz.krypto.AES
+import com.soywiz.krypto.Padding
+
+typealias Decryptor = (ByteArray) -> ByteArray
+
+fun createDecryptor(
+    secret: ByteArray,
+    hash: ByteArray
+): Decryptor {
+    val secretHash = sha512(secret + hash)
+    val key = secretHash.copyOfRange(0, 32)
+    val iv = secretHash.copyOfRange(32, 48)
+
+    return {
+        val decrypted = AES.decryptAesCbc(it, key, iv, Padding.NoPadding)
+        decrypted.copyOfRange(decrypted[0].toInt(), decrypted.size)
+    }
+}
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/SHA512.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/SHA512.kt
new file mode 100644
index 0000000000..89cf99416c
--- /dev/null
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/crypto/SHA512.kt
@@ -0,0 +1,3 @@
+package com.github.insanusmokrassar.TelegramBotAPI.utils.crypto
+
+external fun sha512(from: ByteArray): ByteArray