fix mac full 3DES iv generation

2018-10-02 15:52:12 +02:00 · 2018-10-02 15:52:12 +02:00 · 7971bc3e09
parent 2f4bf27ce0
commit 7971bc3e09
1 changed files with 1 additions and 1 deletions
--- a/globalplatform/crypto/crypto.go
+++ b/globalplatform/crypto/crypto.go
@ -65,7 +65,7 @@ func MacFull3DES(key, data, iv []byte) ([]byte, error) {
 		tmp := make([]byte, length)
 		mode := cipher.NewCBCEncrypter(desBlock, iv)
 		mode.CryptBlocks(tmp, data[:length])
-		des3IV = tmp
+		des3IV = tmp[length-8:]
 	}

 	ciphertext := make([]byte, 8)