diff --git a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/JsSodiumInterface.kt b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/JsSodiumInterface.kt
index 3c34d40..13fa4b1 100644
--- a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/JsSodiumInterface.kt
+++ b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/JsSodiumInterface.kt
@@ -48,6 +48,23 @@ external object CryptoKxServerSessionKeysResult: JsAny {
     val sharedTx: Uint8Array
 }
 
+external object CryptoSecretboxDetachedResult: JsAny {
+    val cipher: Uint8Array
+    val mac: Uint8Array
+}
+
+external object CryptoSecretstreamXchacha20poly1305InitPushResult: JsAny {
+    val state: Uint8Array
+    val header: Uint8Array
+}
+
+external object CryptoSecretstreamXchacha20poly1305PullResult: JsAny {
+    val message: Uint8Array
+    val tag: UByte
+}
+
+
+
 @JsModule("libsodium-wrappers-sumo")
 external object JsSodiumInterface {
 
@@ -87,7 +104,8 @@ external object JsSodiumInterface {
 
     @JsName("crypto_generichash_blake2b_update")
     fun crypto_generichash_blake2b_update(state: JsAny, inputMessage: Uint8Array)
-
+    // TODO: строка ниже просто висела без ничего, я ее закомментила
+//crypto_secretstream_xchacha20poly1305_init_push
     @JsName("crypto_generichash_blake2b_final")
     fun crypto_generichash_blake2b_final(state: JsAny, hashLength: Int) : Uint8Array
 
@@ -130,7 +148,7 @@ external object JsSodiumInterface {
     //XChaCha20Poly1305
     //encrypt
     @JsName("crypto_secretstream_xchacha20poly1305_init_push")
-    fun crypto_secretstream_xchacha20poly1305_init_push(key: Uint8Array) : JsAny
+    fun crypto_secretstream_xchacha20poly1305_init_push(key: Uint8Array) : CryptoSecretstreamXchacha20poly1305InitPushResult
     @JsName("crypto_secretstream_xchacha20poly1305_push")
     // TODO: два варианта:                      \/
     //  1. Меняем юбайт на байт и юинт на инт   \/
@@ -141,7 +159,7 @@ external object JsSodiumInterface {
     @JsName("crypto_secretstream_xchacha20poly1305_init_pull")
     fun crypto_secretstream_xchacha20poly1305_init_pull(header: Uint8Array, key: Uint8Array) : JsAny
     @JsName("crypto_secretstream_xchacha20poly1305_pull")
-    fun crypto_secretstream_xchacha20poly1305_pull(state: JsAny, ciphertext: Uint8Array, associatedData: Uint8Array) : JsAny
+    fun crypto_secretstream_xchacha20poly1305_pull(state: JsAny, ciphertext: Uint8Array, associatedData: Uint8Array) : CryptoSecretstreamXchacha20poly1305PullResult
 
     //keygen and rekey
     @JsName("crypto_secretstream_xchacha20poly1305_keygen")
@@ -151,7 +169,7 @@ external object JsSodiumInterface {
 
     // ---- SecretBox ----
     @JsName("crypto_secretbox_detached")
-    fun crypto_secretbox_detached(message: Uint8Array, nonce: Uint8Array, key: Uint8Array) : JsAny
+    fun crypto_secretbox_detached(message: Uint8Array, nonce: Uint8Array, key: Uint8Array) : CryptoSecretboxDetachedResult
     @JsName("crypto_secretbox_easy")
     fun crypto_secretbox_easy(message: Uint8Array, nonce: Uint8Array, key: Uint8Array) : Uint8Array
     @JsName("crypto_secretbox_keygen")
diff --git a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/pwhash/PasswordHash.kt b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/pwhash/PasswordHash.kt
index 82bf6c4..e678013 100644
--- a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/pwhash/PasswordHash.kt
+++ b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/pwhash/PasswordHash.kt
@@ -26,12 +26,12 @@ actual object PasswordHash {
             throw RuntimeException("Javascript doesnt support more than ${UInt.MAX_VALUE} for opslimit")
         }
         return getSodium().crypto_pwhash(
-            outputLength.toUInt(),
+            outputLength.toLong(),
             password.encodeToUByteArray().toUInt8Array(),
             salt.toUInt8Array(),
-            opsLimit.toUInt(),
-            memLimit.toUInt(),
-            algorithm.toUInt()
+            opsLimit.toLong(),
+            memLimit.toLong(),
+            algorithm.toLong()
         ).toUByteArray()
     }
 
@@ -51,8 +51,8 @@ actual object PasswordHash {
         }
         return getSodium().crypto_pwhash_str(
             password.encodeToUByteArray().toUInt8Array(),
-            opslimit.toUInt(),
-            memlimit.toUInt()
+            opslimit.toLong(),
+            memlimit.toLong()
         )
     }
 
@@ -73,8 +73,8 @@ actual object PasswordHash {
         return if (
             getSodium().crypto_pwhash_str_needs_rehash(
                 passwordHash,
-                opslimit.toUInt(),
-                memlimit.toUInt()
+                opslimit.toLong(),
+                memlimit.toLong()
             )
         ) {
             1
diff --git a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretbox/SecretBox.kt b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretbox/SecretBox.kt
index 4ff9188..e61d14f 100644
--- a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretbox/SecretBox.kt
+++ b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretbox/SecretBox.kt
@@ -42,8 +42,8 @@ actual object SecretBox {
             key.toUInt8Array()
         )
         return SecretBoxEncryptedDataAndTag(
-            (result.cipher as Uint8Array).toUByteArray(),
-            (result.mac as Uint8Array).toUByteArray()
+            result.cipher.toUByteArray(),
+            result.mac.toUByteArray()
         )
     }
 
diff --git a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretstream/SecretStream.kt b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretstream/SecretStream.kt
index 27856e8..6cb67fd 100644
--- a/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretstream/SecretStream.kt
+++ b/multiplatform-crypto-libsodium-bindings/src/wasmJsMain/kotlin/com/ionspin/kotlin/crypto/secretstream/SecretStream.kt
@@ -5,12 +5,14 @@ import ext.libsodium.com.ionspin.kotlin.crypto.toUByteArray
 import ext.libsodium.com.ionspin.kotlin.crypto.toUInt8Array
 import org.khronos.webgl.Uint8Array
 
-actual typealias SecretStreamState = Any
+external object SecretStreamStateType: JsAny
+
+actual typealias SecretStreamState = SecretStreamStateType
 
 actual object SecretStream {
     actual fun xChaCha20Poly1305InitPush(key: UByteArray): SecretStreamStateAndHeader {
         val state = getSodium().crypto_secretstream_xchacha20poly1305_init_push(key.toUInt8Array())
-        return SecretStreamStateAndHeader(state.state, (state.header as Uint8Array).toUByteArray())
+        return SecretStreamStateAndHeader(state.state as SecretStreamState, state.header.toUByteArray())
     }
 
     actual fun xChaCha20Poly1305Push(
@@ -20,7 +22,7 @@ actual object SecretStream {
         tag: UByte
     ): UByteArray {
         return getSodium().crypto_secretstream_xchacha20poly1305_push(
-            state, message.toUInt8Array(), associatedData.toUInt8Array(), tag
+            state, message.toUInt8Array(), associatedData.toUInt8Array(), tag.toInt()
         ).toUByteArray()
     }
 
@@ -29,7 +31,7 @@ actual object SecretStream {
         header: UByteArray
     ): SecretStreamStateAndHeader {
         val state = getSodium().crypto_secretstream_xchacha20poly1305_init_pull(header.toUInt8Array(), key.toUInt8Array())
-        return SecretStreamStateAndHeader(state, header)
+        return SecretStreamStateAndHeader(state as SecretStreamState, header)
     }
 
     actual fun xChaCha20Poly1305Pull(
@@ -40,10 +42,12 @@ actual object SecretStream {
         val dataAndTag = getSodium().crypto_secretstream_xchacha20poly1305_pull(
             state, ciphertext.toUInt8Array(), associatedData.toUInt8Array()
         )
-        if (dataAndTag == false) {
+        // TODO: cast definitely will succeed (i hope),
+        //       but it needs to be checked \/ i'm not sure about this move
+        if (dataAndTag as Boolean == false) {
             throw SecretStreamCorruptedOrTamperedDataException()
         }
-        return DecryptedDataAndTag((dataAndTag.message as Uint8Array).toUByteArray(), dataAndTag.tag)
+        return DecryptedDataAndTag(dataAndTag.message.toUByteArray(), dataAndTag.tag.toUByte())
 
     }