HentaiNexus: Fix length=7; index=7 (#736)

src/en/hentainexus/build.gradle

@@ -1,7 +1,7 @@
 ext {
     extName = "HentaiNexus"
     extClass = ".HentaiNexus"
-    extVersionCode = 5
+    extVersionCode = 6
     isNsfw = true
 }
 

src/en/hentainexus/src/eu/kanade/tachiyomi/extension/en/hentainexus/HentaiNexus.kt

@@ -17,7 +17,6 @@ import kotlinx.serialization.json.jsonObject
 import kotlinx.serialization.json.jsonPrimitive
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import okhttp3.Request
-import okhttp3.Response
 import org.jsoup.nodes.Document
 import org.jsoup.nodes.Element
 import rx.Observable

src/en/hentainexus/src/eu/kanade/tachiyomi/extension/en/hentainexus/HentaiNexusUtils.kt

@@ -5,7 +5,7 @@ import android.util.Base64
 object HentaiNexusUtils {
     fun decryptData(data: String): String = decryptData(Base64.decode(data, Base64.DEFAULT))
 
-    private val primeNumbers = listOf(2, 3, 5, 7, 11, 13, 17)
+    private val primeNumbers = listOf(2, 3, 5, 7, 11, 13, 17, 19)
 
     private fun decryptData(data: ByteArray): String {
         val keyStream = data.slice(0 until 64).map { it.toUByte().toInt() }