nl.open.jwtdependency.org.bouncycastle.pqc.asn1.RainbowPrivateKey Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of java-jwt-nodependencies Show documentation
Show all versions of java-jwt-nodependencies Show documentation
This is a drop in replacement for the auth0 java-jwt library (see https://github.com/auth0/java-jwt). This jar makes sure there are no external dependencies (e.g. fasterXml, Apacha Commons) needed. This is useful when deploying to an application server (e.g. tomcat with Alfreso or Pega).
The newest version!
package org.bouncycastle.pqc.asn1;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.pqc.crypto.rainbow.Layer;
import org.bouncycastle.pqc.crypto.rainbow.util.RainbowUtil;
/**
* Return the key data to encode in the PrivateKeyInfo structure.
*
* The ASN.1 definition of the key structure is
*
* RainbowPrivateKey ::= SEQUENCE {
* CHOICE
* {
* oid OBJECT IDENTIFIER -- OID identifying the algorithm
* version INTEGER -- 0
* }
* A1inv SEQUENCE OF OCTET STRING -- inversed matrix of L1
* b1 OCTET STRING -- translation vector of L1
* A2inv SEQUENCE OF OCTET STRING -- inversed matrix of L2
* b2 OCTET STRING -- translation vector of L2
* vi OCTET STRING -- num of elmts in each Set S
* layers SEQUENCE OF Layer -- layers of F
* }
*
* Layer ::= SEQUENCE OF Poly
*
* Poly ::= SEQUENCE {
* alpha SEQUENCE OF OCTET STRING
* beta SEQUENCE OF OCTET STRING
* gamma OCTET STRING
* eta INTEGER
* }
*
*/
public class RainbowPrivateKey
extends ASN1Object
{
private ASN1Integer version;
private ASN1ObjectIdentifier oid;
private byte[][] invA1;
private byte[] b1;
private byte[][] invA2;
private byte[] b2;
private byte[] vi;
private Layer[] layers;
private RainbowPrivateKey(ASN1Sequence seq)
{
// or version
if (seq.getObjectAt(0) instanceof ASN1Integer)
{
version = ASN1Integer.getInstance(seq.getObjectAt(0));
}
else
{
oid = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0));
}
//
ASN1Sequence asnA1 = (ASN1Sequence)seq.getObjectAt(1);
invA1 = new byte[asnA1.size()][];
for (int i = 0; i < asnA1.size(); i++)
{
invA1[i] = ((ASN1OctetString)asnA1.getObjectAt(i)).getOctets();
}
//
ASN1Sequence asnb1 = (ASN1Sequence)seq.getObjectAt(2);
b1 = ((ASN1OctetString)asnb1.getObjectAt(0)).getOctets();
//
ASN1Sequence asnA2 = (ASN1Sequence)seq.getObjectAt(3);
invA2 = new byte[asnA2.size()][];
for (int j = 0; j < asnA2.size(); j++)
{
invA2[j] = ((ASN1OctetString)asnA2.getObjectAt(j)).getOctets();
}
//
ASN1Sequence asnb2 = (ASN1Sequence)seq.getObjectAt(4);
b2 = ((ASN1OctetString)asnb2.getObjectAt(0)).getOctets();
//
ASN1Sequence asnvi = (ASN1Sequence)seq.getObjectAt(5);
vi = ((ASN1OctetString)asnvi.getObjectAt(0)).getOctets();
//
ASN1Sequence asnLayers = (ASN1Sequence)seq.getObjectAt(6);
byte[][][][] alphas = new byte[asnLayers.size()][][][];
byte[][][][] betas = new byte[asnLayers.size()][][][];
byte[][][] gammas = new byte[asnLayers.size()][][];
byte[][] etas = new byte[asnLayers.size()][];
// a layer:
for (int l = 0; l < asnLayers.size(); l++)
{
ASN1Sequence asnLayer = (ASN1Sequence)asnLayers.getObjectAt(l);
// alphas (num of alpha-2d-array = oi)
ASN1Sequence alphas3d = (ASN1Sequence)asnLayer.getObjectAt(0);
alphas[l] = new byte[alphas3d.size()][][];
for (int m = 0; m < alphas3d.size(); m++)
{
ASN1Sequence alphas2d = (ASN1Sequence)alphas3d.getObjectAt(m);
alphas[l][m] = new byte[alphas2d.size()][];
for (int n = 0; n < alphas2d.size(); n++)
{
alphas[l][m][n] = ((ASN1OctetString)alphas2d.getObjectAt(n)).getOctets();
}
}
// betas ....
ASN1Sequence betas3d = (ASN1Sequence)asnLayer.getObjectAt(1);
betas[l] = new byte[betas3d.size()][][];
for (int mb = 0; mb < betas3d.size(); mb++)
{
ASN1Sequence betas2d = (ASN1Sequence)betas3d.getObjectAt(mb);
betas[l][mb] = new byte[betas2d.size()][];
for (int nb = 0; nb < betas2d.size(); nb++)
{
betas[l][mb][nb] = ((ASN1OctetString)betas2d.getObjectAt(nb)).getOctets();
}
}
// gammas ...
ASN1Sequence gammas2d = (ASN1Sequence)asnLayer.getObjectAt(2);
gammas[l] = new byte[gammas2d.size()][];
for (int mg = 0; mg < gammas2d.size(); mg++)
{
gammas[l][mg] = ((ASN1OctetString)gammas2d.getObjectAt(mg)).getOctets();
}
// eta ...
etas[l] = ((ASN1OctetString)asnLayer.getObjectAt(3)).getOctets();
}
int numOfLayers = vi.length - 1;
this.layers = new Layer[numOfLayers];
for (int i = 0; i < numOfLayers; i++)
{
Layer l = new Layer(vi[i], vi[i + 1], RainbowUtil.convertArray(alphas[i]),
RainbowUtil.convertArray(betas[i]), RainbowUtil.convertArray(gammas[i]), RainbowUtil.convertArray(etas[i]));
this.layers[i] = l;
}
}
public RainbowPrivateKey(short[][] invA1, short[] b1, short[][] invA2,
short[] b2, int[] vi, Layer[] layers)
{
this.version = new ASN1Integer(1);
this.invA1 = RainbowUtil.convertArray(invA1);
this.b1 = RainbowUtil.convertArray(b1);
this.invA2 = RainbowUtil.convertArray(invA2);
this.b2 = RainbowUtil.convertArray(b2);
this.vi = RainbowUtil.convertIntArray(vi);
this.layers = layers;
}
public static RainbowPrivateKey getInstance(Object o)
{
if (o instanceof RainbowPrivateKey)
{
return (RainbowPrivateKey)o;
}
else if (o != null)
{
return new RainbowPrivateKey(ASN1Sequence.getInstance(o));
}
return null;
}
public ASN1Integer getVersion()
{
return version;
}
/**
* Getter for the inverse matrix of A1.
*
* @return the A1inv inverse
*/
public short[][] getInvA1()
{
return RainbowUtil.convertArray(invA1);
}
/**
* Getter for the translation part of the private quadratic map L1.
*
* @return b1 the translation part of L1
*/
public short[] getB1()
{
return RainbowUtil.convertArray(b1);
}
/**
* Getter for the translation part of the private quadratic map L2.
*
* @return b2 the translation part of L2
*/
public short[] getB2()
{
return RainbowUtil.convertArray(b2);
}
/**
* Getter for the inverse matrix of A2
*
* @return the A2inv
*/
public short[][] getInvA2()
{
return RainbowUtil.convertArray(invA2);
}
/**
* Returns the layers contained in the private key
*
* @return layers
*/
public Layer[] getLayers()
{
return this.layers;
}
/**
* Returns the array of vi-s
*
* @return the vi
*/
public int[] getVi()
{
return RainbowUtil.convertArraytoInt(vi);
}
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
// encode or version
if (version != null)
{
v.add(version);
}
else
{
v.add(oid);
}
// encode
ASN1EncodableVector asnA1 = new ASN1EncodableVector();
for (int i = 0; i < invA1.length; i++)
{
asnA1.add(new DEROctetString(invA1[i]));
}
v.add(new DERSequence(asnA1));
// encode
ASN1EncodableVector asnb1 = new ASN1EncodableVector();
asnb1.add(new DEROctetString(b1));
v.add(new DERSequence(asnb1));
// encode
ASN1EncodableVector asnA2 = new ASN1EncodableVector();
for (int i = 0; i < invA2.length; i++)
{
asnA2.add(new DEROctetString(invA2[i]));
}
v.add(new DERSequence(asnA2));
// encode
ASN1EncodableVector asnb2 = new ASN1EncodableVector();
asnb2.add(new DEROctetString(b2));
v.add(new DERSequence(asnb2));
// encode
ASN1EncodableVector asnvi = new ASN1EncodableVector();
asnvi.add(new DEROctetString(vi));
v.add(new DERSequence(asnvi));
// encode
ASN1EncodableVector asnLayers = new ASN1EncodableVector();
// a layer:
for (int l = 0; l < layers.length; l++)
{
ASN1EncodableVector aLayer = new ASN1EncodableVector();
// alphas (num of alpha-2d-array = oi)
byte[][][] alphas = RainbowUtil.convertArray(layers[l].getCoeffAlpha());
ASN1EncodableVector alphas3d = new ASN1EncodableVector();
for (int i = 0; i < alphas.length; i++)
{
ASN1EncodableVector alphas2d = new ASN1EncodableVector();
for (int j = 0; j < alphas[i].length; j++)
{
alphas2d.add(new DEROctetString(alphas[i][j]));
}
alphas3d.add(new DERSequence(alphas2d));
}
aLayer.add(new DERSequence(alphas3d));
// betas ....
byte[][][] betas = RainbowUtil.convertArray(layers[l].getCoeffBeta());
ASN1EncodableVector betas3d = new ASN1EncodableVector();
for (int i = 0; i < betas.length; i++)
{
ASN1EncodableVector betas2d = new ASN1EncodableVector();
for (int j = 0; j < betas[i].length; j++)
{
betas2d.add(new DEROctetString(betas[i][j]));
}
betas3d.add(new DERSequence(betas2d));
}
aLayer.add(new DERSequence(betas3d));
// gammas ...
byte[][] gammas = RainbowUtil.convertArray(layers[l].getCoeffGamma());
ASN1EncodableVector asnG = new ASN1EncodableVector();
for (int i = 0; i < gammas.length; i++)
{
asnG.add(new DEROctetString(gammas[i]));
}
aLayer.add(new DERSequence(asnG));
// eta
aLayer.add(new DEROctetString(RainbowUtil.convertArray(layers[l].getCoeffEta())));
// now, layer built up. add it!
asnLayers.add(new DERSequence(aLayer));
}
v.add(new DERSequence(asnLayers));
return new DERSequence(v);
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy