so many things

encrypter/encrypter.go

@@ -1,77 +1,13 @@
 package encrypter
 
 import (
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/rand"
-	"github.com/didiercrunch/ecrypto/keys"
 	"io"
 )
 
-type FileEncrypter struct {
-	PublicKey    keys.PublicKey
-	PrivateKey   keys.PrivateKey
-	InputPath    string
-	OutputPath   string
-	randomReader io.Reader
-
-	iv  []byte
-	key []byte
+type StreamEncrypter interface {
+	EncrypeReaderToWriter(clearInput io.Reader, encryptedOutput io.Writer)
 }
 
-func NewEncrypter() *FileEncrypter {
-	ret := new(FileEncrypter)
-	ret.randomReader = rand.Reader
-	return ret
-}
-
-func (this *FileEncrypter) createSymetricKey(size int) ([]byte, error) {
-	key := make([]byte, size)
-	_, err := io.ReadFull(this.randomReader, key)
-	return key, err
-}
-
-func (this *FileEncrypter) getCypherBlock() (cipher.Block, error) {
-	var err error
-	this.key, err = this.createSymetricKey(32)
-	if err != nil {
-		return nil, err
-	}
-	return aes.NewCipher(this.key)
-}
-
-func (this *FileEncrypter) createIV(block cipher.Block) (iv []byte, err error) {
-	return this.createSymetricKey(block.BlockSize())
-}
-
-func (this *FileEncrypter) createStreamMode(block cipher.Block) (stream cipher.Stream, err error) {
-	this.iv, err = this.createIV(block)
-	if err != nil {
-		return nil, err
-	}
-	return cipher.NewOFB(block, this.iv), err
-}
-
-func (this *FileEncrypter) createFileHandlerAndCypherBlock() (stream cipher.Stream, err error) {
-	cypherBlock, err := this.getCypherBlock()
-	if err != nil {
-		return nil, err
-	}
-	return this.createStreamMode(cypherBlock)
-}
-
-func (this *FileEncrypter) encrypeReaderToWriter(clearInput io.Reader, encryptedOutput io.Writer) error {
-	stream, err := this.createFileHandlerAndCypherBlock()
-	if err != nil {
-		return err
-	}
-	writer := &cipher.StreamWriter{S: stream, W: encryptedOutput}
-	if _, err := io.Copy(writer, clearInput); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (this *FileEncrypter) Encrypt() error {
-	return nil
+type StreamSigner interface {
+	SignStream(input io.Reader) ([]byte, error)
 }