continued work on encryption

pkg/provider/crypto/reader.go

@@ -3,6 +3,7 @@ package crypto
 import (
 	"crypto/cipher"
 	"errors"
+	"fmt"
 	"io"
 
 	"golang.org/x/crypto/chacha20poly1305"
@@ -23,6 +24,7 @@ type reader struct {
 
 	err   error
 	nonce [NonceSize]byte
+	cn    int64
 }
 
 func newReader(key []byte, src cryptoReader) (*reader, error) {
@@ -33,6 +35,7 @@ func newReader(key []byte, src cryptoReader) (*reader, error) {
 	return &reader{
 		a:   aead,
 		src: src,
+		cn:  -1,
 	}, nil
 }
 
@@ -84,7 +87,9 @@ func (r *reader) readChunk() (last bool, err error) {
 		// The last chunk can be short.
 		in = in[:n]
 		last = true
+		fmt.Println("last nonce", r.nonce)
 		setLastChunkFlag(&r.nonce)
+		fmt.Println("last nonce flag", r.nonce)
 	case err != nil:
 		return false, err
 	}