diff options
Diffstat (limited to 'bcprov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams.java')
-rw-r--r-- | bcprov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams.java b/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams.java new file mode 100644 index 0000000..03e7c1b --- /dev/null +++ b/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams.java @@ -0,0 +1,47 @@ +package org.bouncycastle.pqc.jcajce.provider.mceliece; + +import java.security.InvalidKeyException; +import java.security.PrivateKey; +import java.security.PublicKey; + +import org.bouncycastle.crypto.params.AsymmetricKeyParameter; +import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters; +import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters; + +/** + * utility class for converting jce/jca McElieceCCA2 objects + * objects into their org.bouncycastle.crypto counterparts. + */ +public class McElieceCCA2KeysToParams +{ + + + static public AsymmetricKeyParameter generatePublicKeyParameter( + PublicKey key) + throws InvalidKeyException + { + if (key instanceof BCMcElieceCCA2PublicKey) + { + BCMcElieceCCA2PublicKey k = (BCMcElieceCCA2PublicKey)key; + + return new McElieceCCA2PublicKeyParameters(k.getOIDString(), k.getN(), k.getT(), k.getG(), k.getMcElieceCCA2Parameters()); + } + + throw new InvalidKeyException("can't identify McElieceCCA2 public key: " + key.getClass().getName()); + } + + + static public AsymmetricKeyParameter generatePrivateKeyParameter( + PrivateKey key) + throws InvalidKeyException + { + if (key instanceof BCMcElieceCCA2PrivateKey) + { + BCMcElieceCCA2PrivateKey k = (BCMcElieceCCA2PrivateKey)key; + return new McElieceCCA2PrivateKeyParameters(k.getOIDString(), k.getN(), k.getK(), k.getField(), k.getGoppaPoly(), + k.getP(), k.getH(), k.getQInv(), k.getMcElieceCCA2Parameters()); + } + + throw new InvalidKeyException("can't identify McElieceCCA2 private key."); + } +} |