AlgorithmParameterSpec
public class IvParameterSpec extends Object implements AlgorithmParameterSpec
Constructor | Description |
---|---|
IvParameterSpec |
Creates an IvParameterSpec object using the bytes in iv as the IV. |
IvParameterSpec |
Creates an IvParameterSpec object using the first len bytes in iv , beginning at offset inclusive, as the IV. |
Modifier and Type | Method | Description |
---|---|---|
byte[] |
getIV() |
Returns the initialization vector (IV). |
public IvParameterSpec(byte[] iv)
iv
as the IV.iv
- the buffer with the IV. The contents of the buffer are copied to protect against subsequent modification.NullPointerException
- if iv
is null
public IvParameterSpec(byte[] iv, int offset, int len)
len
bytes in iv
, beginning at offset
inclusive, as the IV. The bytes that constitute the IV are those between iv[offset]
and iv[offset+len-1]
inclusive.
iv
- the buffer with the IV. The first len
bytes of the buffer beginning at offset
inclusive are copied to protect against subsequent modification.offset
- the offset in iv
where the IV starts.len
- the number of IV bytes.IllegalArgumentException
- if iv
is null
or (iv.length - offset < len)
ArrayIndexOutOfBoundsException
- is thrown if offset
or len
index bytes outside the iv
.public byte[] getIV()
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/javax/crypto/spec/IvParameterSpec.html