ECPrivateKey,
and they are intended for use with algorithms based on RFC 7748 such as the
XDH KeyAgreement algorithm.
An XEC private key is an encoded scalar value as described in RFC 7748.
The decoding procedure defined in this RFC includes an operation that forces
certain bits of the key to either 1 or 0. This operation is known as
"pruning" or "clamping" the private key. Arrays returned by this interface
are unpruned, and implementations will need to prune the array before
using it in any numerical operations.
| Modifier and Type | Method and Description |
|---|---|
| public default AlgorithmParameterSpec | getParams()
Overrides default java. Implements java. Returns the parameters associated with this key. |
| public Optional | Returns: the unpruned encoded scalar value, or an empty Optional if the scalar cannot be extracted (e.g. if the provider is a hardware token and the private key is not allowed to leave the crypto boundary).Get the scalar value encoded as an unpruned byte array. |
| getParams | back to summary |
|---|---|
| public default AlgorithmParameterSpec getParams() Overrides default java. Implements java. Doc from java. Returns the parameters associated with this key. The parameters are optional and may be either explicitly specified or implicitly created during key pair generation. Implementation Specification The default implementation returns
| |
| getScalar | back to summary |
|---|---|
| public Optional Get the scalar value encoded as an unpruned byte array. A new copy of the array is returned each time this method is called.
| |