fix(sse): Temporarily refactored the SSE design for ECStore (#2813)

Co-authored-by: houseme <housemecn@gmail.com>
Co-authored-by: cxymds <Cxymds@qq.com>

crates/rio/src/encrypt_reader.rs

@@ -57,6 +57,10 @@ where
             finished: false,
         }
     }
+
+    pub fn new_multipart(inner: R, key: [u8; 32], base_nonce: [u8; 12], part_number: usize) -> Self {
+        Self::new(inner, key, multipart_part_nonce(base_nonce, part_number))
+    }
 }
 
 impl<R> AsyncRead for EncryptReader<R>
@@ -474,6 +478,10 @@ fn derive_block_nonce(base: &[u8; 12], block_index: usize) -> [u8; 12] {
     derive_nonce_offset(base, 8, block_index)
 }
 
+pub fn multipart_part_nonce(base_nonce: [u8; 12], part_number: usize) -> [u8; 12] {
+    derive_part_nonce(&base_nonce, part_number)
+}
+
 fn derive_part_nonce(base: &[u8; 12], part_number: usize) -> [u8; 12] {
     derive_nonce_offset(base, 4, part_number)
 }

crates/rio/src/lib.rs

@@ -88,7 +88,7 @@ mod compress_reader;
 pub use compress_reader::{CompressReader, DecompressReader};
 
 mod encrypt_reader;
-pub use encrypt_reader::{DecryptReader, EncryptReader};
+pub use encrypt_reader::{DecryptReader, EncryptReader, multipart_part_nonce};
 
 mod hardlimit_reader;
 pub use hardlimit_reader::HardLimitReader;