(BlindStreamChunkPlainV1��BlindStreamChunkPlainV1�rBlindStreamChunkPlainV1 { // exact total = wireClass bytes - 16-byte AEAD tag
version: u8 = 1
wireClass: u8 // ciphertext: 1=4096, 2=16384, 3=65535 bytes
flags: u8 // bit 0 FIN; other bits zero
contentLength: u32
content: bytes[contentLength]
randomPadding: remaining bytes to (wireClass bytes - 16)
}