DerivationFunction, DigestDerivationFunctionKDF1BytesGenerator, KDF2BytesGeneratorpublic class BaseKDFBytesGenerator extends java.lang.Object implements DigestDerivationFunction
| Modifier | Constructor | Description |
|---|---|---|
protected |
BaseKDFBytesGenerator(int counterStart,
Digest digest) |
Construct a KDF Parameters generator.
|
| Modifier and Type | Method | Description |
|---|---|---|
int |
generateBytes(byte[] out,
int outOff,
int len) |
fill len bytes of the output buffer with bytes generated from the
derivation function.
|
Digest |
getDigest() |
return the underlying digest.
|
void |
init(DerivationParameters param) |
protected BaseKDFBytesGenerator(int counterStart,
Digest digest)
counterStart - value of counter.digest - the digest to be used as the source of derived keys.public void init(DerivationParameters param)
init in interface DerivationFunctionpublic Digest getDigest()
getDigest in interface DigestDerivationFunctionpublic int generateBytes(byte[] out,
int outOff,
int len)
throws DataLengthException,
java.lang.IllegalArgumentException
generateBytes in interface DerivationFunctionjava.lang.IllegalArgumentException - if the size of the request will cause an overflow.DataLengthException - if the out buffer is too small.