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feat: Add detailed logging for encryptReplyBlob function in MessageCrypto

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k1ngsterr1
2026-01-27 00:22:34 +05:00
parent b3873a759f
commit f906dc9cf8
1 changed files with 19 additions and 3 deletions
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22
app/src/main/java/com/rosetta/messenger/crypto/MessageCrypto.kt
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@@ -731,29 +731,40 @@ object MessageCrypto {
*/
fun encryptReplyBlob(replyJson: String, plainKeyAndNonce: ByteArray): String {
return try {
android.util.Log.d("MessageCrypto", "🔐 encryptReplyBlob START")
android.util.Log.d("MessageCrypto", "🔐 Input length: ${replyJson.length} chars")
android.util.Log.d("MessageCrypto", "🔐 Input first 100: ${replyJson.take(100)}")
android.util.Log.d("MessageCrypto", "🔐 plainKeyAndNonce length: ${plainKeyAndNonce.size} bytes")
// Convert plainKeyAndNonce to string - simulate JS Buffer.toString('utf-8') behavior
// which replaces invalid UTF-8 sequences with U+FFFD
val password = bytesToJsUtf8String(plainKeyAndNonce)
android.util.Log.d("MessageCrypto", "🔐 Password length: ${password.length} chars")
android.util.Log.d("MessageCrypto", "🔐 Password first 50 chars: ${password.take(50)}")
// Compress with raw deflate (NO zlib header) - matching pako.deflate()
// CRITICAL: nowrap=true for raw deflate (pako default)
val deflater = java.util.zip.Deflater(java.util.zip.Deflater.DEFAULT_COMPRESSION, true)
// Compress with zlib format (WITH header) - matching pako.deflate()
// CRITICAL: nowrap=false for zlib format (pako.deflate default)
val deflater = java.util.zip.Deflater(java.util.zip.Deflater.DEFAULT_COMPRESSION, false)
deflater.setInput(replyJson.toByteArray(Charsets.UTF_8))
deflater.finish()
val compressedBuffer = ByteArray(replyJson.length * 2 + 100)
val compressedSize = deflater.deflate(compressedBuffer)
deflater.end()
val compressed = compressedBuffer.copyOf(compressedSize)
android.util.Log.d("MessageCrypto", "🔐 Original size: ${replyJson.length}, Compressed size: ${compressed.size}")
// PBKDF2 key derivation (matching crypto-js)
// CRITICAL: Use our custom implementation that properly handles UTF-8!
// Java's PBEKeySpec uses UTF-16, but crypto-js uses UTF-8
val keyBytes = generatePBKDF2Key(password)
android.util.Log.d("MessageCrypto", "🔐 PBKDF2 key generated: ${keyBytes.size} bytes")
android.util.Log.d("MessageCrypto", "🔐 Key first 16 bytes (hex): ${keyBytes.take(16).joinToString("") { "%02x".format(it) }}")
// Generate random IV (16 bytes)
val iv = ByteArray(16)
java.security.SecureRandom().nextBytes(iv)
android.util.Log.d("MessageCrypto", "🔐 IV generated: ${iv.size} bytes")
android.util.Log.d("MessageCrypto", "🔐 IV (hex): ${iv.joinToString("") { "%02x".format(it) }}")
// AES-CBC encryption
val cipher = Cipher.getInstance("AES/CBC/PKCS5Padding")
@@ -761,14 +772,19 @@ object MessageCrypto {
val ivSpec = IvParameterSpec(iv)
cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec)
val ciphertext = cipher.doFinal(compressed)
android.util.Log.d("MessageCrypto", "🔐 AES encrypted: ${ciphertext.size} bytes")
// Format: "ivBase64:ciphertextBase64" (same as RN new format)
val ivBase64 = Base64.encodeToString(iv, Base64.NO_WRAP)
val ctBase64 = Base64.encodeToString(ciphertext, Base64.NO_WRAP)
val result = "$ivBase64:$ctBase64"
android.util.Log.d("MessageCrypto", "🔐 Final encrypted length: ${result.length} chars")
android.util.Log.d("MessageCrypto", "🔐 Final format check - contains colon: ${result.contains(":")}")
android.util.Log.d("MessageCrypto", "🔐 encryptReplyBlob END")
result
} catch (e: Exception) {
android.util.Log.e("MessageCrypto", "❌ encryptReplyBlob failed: ${e.message}", e)
// Fallback: return plaintext (for backwards compatibility)
replyJson
}