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pg/src/main/java/org/bouncycastle/bcpg/EdDSAPublicBCPGKey.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package org.bouncycastle.bcpg; | ||
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| import java.io.IOException; | ||
| import java.math.BigInteger; | ||
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| import org.bouncycastle.asn1.ASN1ObjectIdentifier; | ||
| import org.bouncycastle.math.ec.ECPoint; | ||
| import org.bouncycastle.util.Arrays; | ||
| import org.bouncycastle.util.BigIntegers; | ||
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| /** | ||
| * base class for an ECDSA Public Key. | ||
| */ | ||
| public class EdDSAPublicBCPGKey | ||
| extends ECPublicBCPGKey | ||
| { | ||
| private static final ASN1ObjectIdentifier OID_Ed25519 = new ASN1ObjectIdentifier("1.3.6.1.4.1.11591.15.1"); | ||
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| /** | ||
| * @param in the stream to read the packet from. | ||
| */ | ||
| protected EdDSAPublicBCPGKey( | ||
| BCPGInputStream in) | ||
| throws IOException | ||
| { | ||
| super(in); | ||
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| if (!OID_Ed25519.equals(oid)) | ||
| { | ||
| throw new IOException("Invalid curve oid for EdDSA key!"); | ||
| } | ||
| } | ||
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| public EdDSAPublicBCPGKey( | ||
| BigInteger encodedPoint) | ||
| throws IOException | ||
| { | ||
| super(OID_Ed25519, encodedPoint); | ||
| } | ||
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| public static EdDSAPublicBCPGKey fromEdDSAEncodedPoint( | ||
| byte[] eddsaEncodedPoint) | ||
| throws IOException | ||
| { | ||
| byte[] openpgpEncodedPoint = new byte[eddsaEncodedPoint.length + 1]; | ||
| openpgpEncodedPoint[0] = 0x40; | ||
| System.arraycopy(eddsaEncodedPoint, 0, openpgpEncodedPoint, 1, eddsaEncodedPoint.length); | ||
| return new EdDSAPublicBCPGKey(BigIntegers.fromUnsignedByteArray(openpgpEncodedPoint)); | ||
| } | ||
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| public byte[] getEdDSAEncodedPoint() | ||
| { | ||
| BigInteger encodedPoint = getEncodedPoint(); | ||
| byte[] pointData = BigIntegers.asUnsignedByteArray(encodedPoint); | ||
| if (pointData[0] != 0x40) | ||
| { | ||
| throw new IllegalStateException("Invalid point format in EdDSA key!"); | ||
| } | ||
| return Arrays.copyOfRange(pointData, 1, pointData.length); | ||
| } | ||
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| } |
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pg/src/main/java/org/bouncycastle/bcpg/EdDSASecretBCPGKey.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package org.bouncycastle.bcpg; | ||
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| import java.io.IOException; | ||
| import java.math.BigInteger; | ||
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| import org.bouncycastle.util.BigIntegers; | ||
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| /** | ||
| * base class for an EC Secret Key. | ||
| */ | ||
| public class EdDSASecretBCPGKey | ||
| extends BCPGObject | ||
| implements BCPGKey | ||
| { | ||
| MPInteger x; | ||
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| /** | ||
| * @param in | ||
| * @throws IOException | ||
| */ | ||
| public EdDSASecretBCPGKey( | ||
| BCPGInputStream in) | ||
| throws IOException | ||
| { | ||
| this.x = new MPInteger(in); | ||
| } | ||
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| /** | ||
| * @param x | ||
| */ | ||
| public EdDSASecretBCPGKey( | ||
| BigInteger x) | ||
| { | ||
| this.x = new MPInteger(x); | ||
| } | ||
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| /** | ||
| * @param seed | ||
| */ | ||
| public EdDSASecretBCPGKey( | ||
| byte[] seed) | ||
| { | ||
| BigInteger x = BigIntegers.fromUnsignedByteArray(seed); | ||
| this.x = new MPInteger(x); | ||
| } | ||
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| /** | ||
| * return "PGP" | ||
| * | ||
| * @see BCPGKey#getFormat() | ||
| */ | ||
| public String getFormat() | ||
| { | ||
| return "PGP"; | ||
| } | ||
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| /** | ||
| * return the standard PGP encoding of the key. | ||
| * | ||
| * @see BCPGKey#getEncoded() | ||
| */ | ||
| public byte[] getEncoded() | ||
| { | ||
| try | ||
| { | ||
| return super.getEncoded(); | ||
| } | ||
| catch (IOException e) | ||
| { | ||
| return null; | ||
| } | ||
| } | ||
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| public void encode( | ||
| BCPGOutputStream out) | ||
| throws IOException | ||
| { | ||
| out.writeObject(x); | ||
| } | ||
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| /** | ||
| * @return x | ||
| */ | ||
| public BigInteger getX() | ||
| { | ||
| return x.getValue(); | ||
| } | ||
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| public byte[] getSeed() | ||
| { | ||
| return BigIntegers.asUnsignedByteArray(x.getValue()); | ||
| } | ||
| } |
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