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-rw-r--r--bcprov/src/main/java/org/bouncycastle/pqc/crypto/DigestingMessageSigner.java117
1 files changed, 0 insertions, 117 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/pqc/crypto/DigestingMessageSigner.java b/bcprov/src/main/java/org/bouncycastle/pqc/crypto/DigestingMessageSigner.java
deleted file mode 100644
index 6b5b251..0000000
--- a/bcprov/src/main/java/org/bouncycastle/pqc/crypto/DigestingMessageSigner.java
+++ /dev/null
@@ -1,117 +0,0 @@
-package org.bouncycastle.pqc.crypto;
-
-import org.bouncycastle.crypto.CipherParameters;
-import org.bouncycastle.crypto.Digest;
-import org.bouncycastle.crypto.Signer;
-import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
-import org.bouncycastle.crypto.params.ParametersWithRandom;
-
-
-/**
- * Implements the sign and verify functions for a Signature Scheme which can use a hash function.
- */
-public class DigestingMessageSigner
- implements Signer
-{
- private final Digest messDigest;
- private final MessageSigner messSigner;
- private boolean forSigning;
-
- public DigestingMessageSigner(MessageSigner messSigner, Digest messDigest)
- {
- this.messSigner = messSigner;
- this.messDigest = messDigest;
- }
-
- public void init(boolean forSigning,
- CipherParameters param)
- {
-
- this.forSigning = forSigning;
- AsymmetricKeyParameter k;
-
- if (param instanceof ParametersWithRandom)
- {
- k = (AsymmetricKeyParameter)((ParametersWithRandom)param).getParameters();
- }
- else
- {
- k = (AsymmetricKeyParameter)param;
- }
-
- if (forSigning && !k.isPrivate())
- {
- throw new IllegalArgumentException("Signing Requires Private Key.");
- }
-
- if (!forSigning && k.isPrivate())
- {
- throw new IllegalArgumentException("Verification Requires Public Key.");
- }
-
- reset();
-
- messSigner.init(forSigning, param);
- }
-
-
- /**
- * This function signs the message that has been updated, making use of the
- * private key.
- *
- * @return the signature of the message.
- */
- public byte[] generateSignature()
- {
- if (!forSigning)
- {
- throw new IllegalStateException("RainbowDigestSigner not initialised for signature generation.");
- }
-
- byte[] hash = new byte[messDigest.getDigestSize()];
- messDigest.doFinal(hash, 0);
-
- return messSigner.generateSignature(hash);
- }
-
- /**
- * This function verifies the signature of the message that has been
- * updated, with the aid of the public key.
- *
- * @param signature the signature of the message is given as a byte array.
- * @return true if the signature has been verified, false otherwise.
- */
- public boolean verify(byte[] signature)
- {
- if (forSigning)
- {
- throw new IllegalStateException("RainbowDigestSigner not initialised for verification");
- }
-
- byte[] hash = new byte[messDigest.getDigestSize()];
- messDigest.doFinal(hash, 0);
-
- return messSigner.verifySignature(hash, signature);
-
- }
-
- public void update(byte b)
- {
- messDigest.update(b);
- }
-
- public void update(byte[] in, int off, int len)
- {
- messDigest.update(in, off, len);
- }
-
- public void reset()
- {
- messDigest.reset();
- }
-
- public boolean verifySignature(byte[] signature)
- {
- return this.verify(signature);
- }
-}