org.h2.security

接口 BlockCipher

所有已知实现类:

AES, Fog, XTEA

public interface BlockCipher

A block cipher is a data encryption algorithm that operates on blocks.

字段概要

字段

限定符和类型	字段和说明
static int	ALIGN Blocks sizes are always multiples of this number.

方法概要

限定符和类型	方法和说明
void	decrypt(byte[] bytes, int off, int len) Decrypt a number of bytes.
void	encrypt(byte[] bytes, int off, int len) Encrypt a number of bytes.
int	getKeyLength() Get the length of the key in bytes.
void	setKey(byte[] key) Set the encryption key used for encrypting and decrypting.

字段详细资料

ALIGN

static final int ALIGN

Blocks sizes are always multiples of this number.

另请参阅:

常量字段值

方法详细资料

setKey

void setKey(byte[] key)

Set the encryption key used for encrypting and decrypting. The key needs to be 16 bytes long.

参数:

key - the key

encrypt

void encrypt(byte[] bytes,
             int off,
             int len)

Encrypt a number of bytes. This is done in-place, that means the bytes are overwritten.

参数:

bytes - the byte array

off - the start index

len - the number of bytes to encrypt

decrypt

void decrypt(byte[] bytes,
             int off,
             int len)

Decrypt a number of bytes. This is done in-place, that means the bytes are overwritten.

参数:

bytes - the byte array

off - the start index

len - the number of bytes to decrypt

getKeyLength

int getKeyLength()

Get the length of the key in bytes.

返回:

the length of the key