style: apply spotless formatting to ChaCha20/Poly1305 sources

https://claude.ai/code/session_01YHBwqnb3Z7Q7PX31tJ2G3i

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip44Encryption/crypto/ChaCha20Core.kt

@@ -48,10 +48,14 @@ object ChaCha20Core {
         c: Int,
         d: Int,
     ) {
-        state[a] += state[b]; state[d] = (state[d] xor state[a]).rotateLeft(16)
+        state[a] += state[b]
-        state[c] += state[d]; state[b] = (state[b] xor state[c]).rotateLeft(12)
+        state[d] = (state[d] xor state[a]).rotateLeft(16)
-        state[a] += state[b]; state[d] = (state[d] xor state[a]).rotateLeft(8)
+        state[c] += state[d]
-        state[c] += state[d]; state[b] = (state[b] xor state[c]).rotateLeft(7)
+        state[b] = (state[b] xor state[c]).rotateLeft(12)
+        state[a] += state[b]
+        state[d] = (state[d] xor state[a]).rotateLeft(8)
+        state[c] += state[d]
+        state[b] = (state[b] xor state[c]).rotateLeft(7)
     }
 
     /**

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip44Encryption/crypto/Poly1305.kt

@@ -84,12 +84,24 @@ object Poly1305 {
 
             // Partial reduction mod 2^130 - 5
             var c: Long
-            c = d0 ushr 26; h0 = d0 and 0x3ffffff; h1 = d1 + c
+            c = d0 ushr 26
-            c = h1 ushr 26; h1 = h1 and 0x3ffffff; h2 = d2 + c
+            h0 = d0 and 0x3ffffff
-            c = h2 ushr 26; h2 = h2 and 0x3ffffff; h3 = d3 + c
+            h1 = d1 + c
-            c = h3 ushr 26; h3 = h3 and 0x3ffffff; h4 = d4 + c
+            c = h1 ushr 26
-            c = h4 ushr 26; h4 = h4 and 0x3ffffff; h0 += c * 5
+            h1 = h1 and 0x3ffffff
-            c = h0 ushr 26; h0 = h0 and 0x3ffffff; h1 += c
+            h2 = d2 + c
+            c = h2 ushr 26
+            h2 = h2 and 0x3ffffff
+            h3 = d3 + c
+            c = h3 ushr 26
+            h3 = h3 and 0x3ffffff
+            h4 = d4 + c
+            c = h4 ushr 26
+            h4 = h4 and 0x3ffffff
+            h0 += c * 5
+            c = h0 ushr 26
+            h0 = h0 and 0x3ffffff
+            h1 += c
         }
 
         // Process remaining bytes (if any)
@@ -111,27 +123,57 @@ object Poly1305 {
             val d4 = h0 * r4 + h1 * r3 + h2 * r2 + h3 * r1 + h4 * r0
 
             var c: Long
-            c = d0 ushr 26; h0 = d0 and 0x3ffffff; h1 = d1 + c
+            c = d0 ushr 26
-            c = h1 ushr 26; h1 = h1 and 0x3ffffff; h2 = d2 + c
+            h0 = d0 and 0x3ffffff
-            c = h2 ushr 26; h2 = h2 and 0x3ffffff; h3 = d3 + c
+            h1 = d1 + c
-            c = h3 ushr 26; h3 = h3 and 0x3ffffff; h4 = d4 + c
+            c = h1 ushr 26
-            c = h4 ushr 26; h4 = h4 and 0x3ffffff; h0 += c * 5
+            h1 = h1 and 0x3ffffff
-            c = h0 ushr 26; h0 = h0 and 0x3ffffff; h1 += c
+            h2 = d2 + c
+            c = h2 ushr 26
+            h2 = h2 and 0x3ffffff
+            h3 = d3 + c
+            c = h3 ushr 26
+            h3 = h3 and 0x3ffffff
+            h4 = d4 + c
+            c = h4 ushr 26
+            h4 = h4 and 0x3ffffff
+            h0 += c * 5
+            c = h0 ushr 26
+            h0 = h0 and 0x3ffffff
+            h1 += c
         }
 
         // Final reduction: fully carry and reduce mod 2^130 - 5
         var c: Long
-        c = h1 ushr 26; h1 = h1 and 0x3ffffff; h2 += c
+        c = h1 ushr 26
-        c = h2 ushr 26; h2 = h2 and 0x3ffffff; h3 += c
+        h1 = h1 and 0x3ffffff
-        c = h3 ushr 26; h3 = h3 and 0x3ffffff; h4 += c
+        h2 += c
-        c = h4 ushr 26; h4 = h4 and 0x3ffffff; h0 += c * 5
+        c = h2 ushr 26
-        c = h0 ushr 26; h0 = h0 and 0x3ffffff; h1 += c
+        h2 = h2 and 0x3ffffff
+        h3 += c
+        c = h3 ushr 26
+        h3 = h3 and 0x3ffffff
+        h4 += c
+        c = h4 ushr 26
+        h4 = h4 and 0x3ffffff
+        h0 += c * 5
+        c = h0 ushr 26
+        h0 = h0 and 0x3ffffff
+        h1 += c
 
         // Compute h + -(2^130 - 5) = h - 2^130 + 5
-        var g0 = h0 + 5; c = g0 ushr 26; g0 = g0 and 0x3ffffff
+        var g0 = h0 + 5
-        var g1 = h1 + c; c = g1 ushr 26; g1 = g1 and 0x3ffffff
+        c = g0 ushr 26
-        var g2 = h2 + c; c = g2 ushr 26; g2 = g2 and 0x3ffffff
+        g0 = g0 and 0x3ffffff
-        var g3 = h3 + c; c = g3 ushr 26; g3 = g3 and 0x3ffffff
+        var g1 = h1 + c
+        c = g1 ushr 26
+        g1 = g1 and 0x3ffffff
+        var g2 = h2 + c
+        c = g2 ushr 26
+        g2 = g2 and 0x3ffffff
+        var g3 = h3 + c
+        c = g3 ushr 26
+        g3 = g3 and 0x3ffffff
         var g4 = h4 + c - (1L shl 26)
 
         // Select h if g4 is negative (bit 63 set), else select g
@@ -160,9 +202,12 @@ object Poly1305 {
         val s2Long = key.leToUInt(24)
         val s3Long = key.leToUInt(28)
 
-        f0 += s0; c = f0 ushr 32
+        f0 += s0
-        f1 += s1Long + c; c = f1 ushr 32
+        c = f0 ushr 32
-        f2 += s2Long + c; c = f2 ushr 32
+        f1 += s1Long + c
+        c = f1 ushr 32
+        f2 += s2Long + c
+        c = f2 ushr 32
         f3 += s3Long + c
 
         // Output as little-endian bytes

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip44Encryption/crypto/ChaCha20CoreTest.kt

@@ -31,7 +31,11 @@ import kotlin.test.assertFailsWith
  */
 class ChaCha20CoreTest {
     private fun hex(s: String): ByteArray =
-        s.replace(" ", "").chunked(2).map { it.toInt(16).toByte() }.toByteArray()
+        s
+            .replace(" ", "")
+            .chunked(2)
+            .map { it.toInt(16).toByte() }
+            .toByteArray()
 
     private fun ByteArray.toHex(): String = joinToString("") { "%02x".format(it) }
 

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip44Encryption/crypto/XChaCha20Test.kt

@@ -25,13 +25,17 @@ import kotlin.test.assertContentEquals
 
 /** Test vectors from libsodium xchacha20.c */
 class XChaCha20Test {
-    private fun hex(s: String): ByteArray =
+    private fun hex(s: String): ByteArray = s.chunked(2).map { it.toInt(16).toByte() }.toByteArray()
-        s.chunked(2).map { it.toInt(16).toByte() }.toByteArray()
 
     // HChaCha20 test vectors from libsodium
-    data class HChaCha20TV(val key: String, val input: String, val expected: String)
+    data class HChaCha20TV(
+        val key: String,
+        val input: String,
+        val expected: String,
+    )
 
-    private val hChaCha20Vectors = listOf(
+    private val hChaCha20Vectors =
+        listOf(
             HChaCha20TV(
                 "24f11cce8a1b3d61e441561a696c1c1b7e173d084fd4812425435a8896a013dc",
                 "d9660c5900ae19ddad28d6e06e45fe5e",
@@ -68,9 +72,14 @@ class XChaCha20Test {
     }
 
     // XChaCha20 stream test vectors from libsodium
-    data class XChaCha20TV(val key: String, val nonce: String, val expected: String)
+    data class XChaCha20TV(
+        val key: String,
+        val nonce: String,
+        val expected: String,
+    )
 
-    private val xChaCha20Vectors = listOf(
+    private val xChaCha20Vectors =
+        listOf(
             XChaCha20TV(
                 "79c99798ac67300bbb2704c95c341e3245f3dcb21761b98e52ff45b24f304fc4",
                 "b33ffd3096479bcfbc9aee49417688a0a2554f8d95389419",