I converted a byte array to string as follow, in Java:
String str_bytearray = new String(bytearray_original);
and then, I recovered original byte array using string, as follow:
byte[] bytearray_recovered = str_bytearray.getBytes();
but I wondered when I compared bytearray_original and bytearray_recovered. the result is as follow:
[48, 89, 48, 19, 6, 7, 42, -122, 72, -50, 61, 2, 1, 6, 8, 42, -122, 72, -50, 61, 3, 1, 7, 3, 66, 0, 4, 100, -27, 48, -31, 13, -33, 107, -90, 91, -9, 119, 121, -73, 83, -105, 51, -87, -109, -84, 99, 115, -123, 119, -117, -1, -62, 71, -32, 99, 4, -103, -115, -47, 113, -83, 8, -91, 14, -74, 113, -40, -26, 50, 111, 95, 71, -9, 112, 120, 16, 0, 113, -80, 124, -71, 53, -97, 69, -85, 38, -112, -30, -110, 115]
[48, 89, 48, 19, 6, 7, 42, -122, 72, -50, 61, 2, 1, 6, 8, 42, -122, 72, -50, 61, 3, 1, 7, 3, 66, 0, 4, 100, -27, 48, -31, 13, -33, 107, -90, 91, -9, 119, 121, -73, 83, -105, 51, -87, -109, -84, 99, 115, -123, 119, -117, -1, -62, 71, -32, 99, 4, -103, 63, -47, 113, -83, 8, -91, 14, -74, 113, -40, -26, 50, 111, 95, 71, -9, 112, 120, 16, 0, 113, -80, 124, -71, 53, -97, 69, -85, 38, 63, -30, -110, 115]
as you can see, two bytes are different from original byte array, that is -115 to 63
and -112 to 63
. Is it possible to solve this problem?
Note: In fact both original and recovered byte array are a public key. First public key is converted to string to store in a file, and then after reading string value of the public key, it should be recovered to verify the signature.
The bytearray_original is generated as follow:
PublicKey signPublicKey = keypair.getPublic();
byte [] bytearray_original = signPublicKey.getEncoded();
I appreciate any help.
Regards