public abstract class Encoding extends Object
| Constructor and Description |
|---|
Encoding() |
| Modifier and Type | Method and Description |
|---|---|
abstract FieldElement |
decode(byte[] in)
Decode a FieldElement from its $(b-1)$-bit encoding.
|
abstract byte[] |
encode(FieldElement x)
Encode a FieldElement in its $(b-1)$-bit encoding.
|
abstract boolean |
isNegative(FieldElement x)
From the Ed25519 paper:
$x$ is negative if the $(b-1)$-bit encoding of $x$ is lexicographically larger than the $(b-1)$-bit encoding of -x. |
void |
setField(Field f) |
protected Field f
public void setField(Field f)
public abstract byte[] encode(FieldElement x)
x - the FieldElement to encodepublic abstract FieldElement decode(byte[] in)
in - the $(b-1)$-bit encoding of a FieldElement.public abstract boolean isNegative(FieldElement x)
x - the FieldElement to checkCopyright © 2019. All rights reserved.