如何給byte賦值？

第一種 直接操作byte數(shù)組

private void SetValue(byte[] byteArr)

{

byte[] LenK = new byte[4];

byte[] LenIV = new byte[4];

Buffer.BlockCopy(byteArr,0,LenK,0,4);

Buffer.BlockCopy(byteArr, 4, LenIV, 0, 4);

int lenK = BitConverter.ToInt32(LenK, 0);

int lenIV = BitConverter.ToInt32(LenIV, 0);

byte[] KeyEncrypted = new byte[lenK];

byte[] IV = new byte[lenIV];

Buffer.BlockCopy(byteArr, 8, KeyEncrypted, 0, lenK);

Buffer.BlockCopy(byteArr, 8 + lenK, IV, 0, lenIV);

byte[] KeyDecrypted = rsa.Decrypt(KeyEncrypted, false);

byte[] IVDecrypted = rsa.Decrypt(IV, false);

}

第二種方法

private void SetValue(byte[] byteArr)

{

using (Stream inFs = new MemoryStream(byteArr))

{

byte[] LenK = new byte[4];

byte[] LenIV = new byte[4];

inFs.Seek(0, SeekOrigin.Begin);

inFs.Read(LenK, 0, 4);

inFs.Seek(4, SeekOrigin.Begin);

inFs.Read(LenIV, 0, 4);

int lenK = BitConverter.ToInt32(LenK, 0);

int lenIV = BitConverter.ToInt32(LenIV, 0);

byte[] KeyEncrypted = new byte[lenK];

byte[] IV = new byte[lenIV];

inFs.Seek(8, SeekOrigin.Begin);

inFs.Read(KeyEncrypted, 0, lenK);

inFs.Seek(8 + lenK, SeekOrigin.Begin);

inFs.Read(IV, 0, lenIV);

}