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Diffstat (limited to 'core/src/main/java/org/bouncycastle/crypto/tls/CombinedHash.java')
-rw-r--r--core/src/main/java/org/bouncycastle/crypto/tls/CombinedHash.java135
1 files changed, 0 insertions, 135 deletions
diff --git a/core/src/main/java/org/bouncycastle/crypto/tls/CombinedHash.java b/core/src/main/java/org/bouncycastle/crypto/tls/CombinedHash.java
deleted file mode 100644
index 43b73bff..00000000
--- a/core/src/main/java/org/bouncycastle/crypto/tls/CombinedHash.java
+++ /dev/null
@@ -1,135 +0,0 @@
-package org.bouncycastle.crypto.tls;
-
-import org.bouncycastle.crypto.Digest;
-
-/**
- * A combined hash, which implements md5(m) || sha1(m).
- */
-class CombinedHash
- implements TlsHandshakeHash
-{
- protected TlsContext context;
- protected Digest md5;
- protected Digest sha1;
-
- CombinedHash()
- {
- this.md5 = TlsUtils.createHash(HashAlgorithm.md5);
- this.sha1 = TlsUtils.createHash(HashAlgorithm.sha1);
- }
-
- CombinedHash(CombinedHash t)
- {
- this.context = t.context;
- this.md5 = TlsUtils.cloneHash(HashAlgorithm.md5, t.md5);
- this.sha1 = TlsUtils.cloneHash(HashAlgorithm.sha1, t.sha1);
- }
-
- public void init(TlsContext context)
- {
- this.context = context;
- }
-
- public TlsHandshakeHash notifyPRFDetermined()
- {
- return this;
- }
-
- public void trackHashAlgorithm(short hashAlgorithm)
- {
- throw new IllegalStateException("CombinedHash only supports calculating the legacy PRF for handshake hash");
- }
-
- public void sealHashAlgorithms()
- {
- }
-
- public TlsHandshakeHash stopTracking()
- {
- return new CombinedHash(this);
- }
-
- public Digest forkPRFHash()
- {
- return new CombinedHash(this);
- }
-
- public byte[] getFinalHash(short hashAlgorithm)
- {
- throw new IllegalStateException("CombinedHash doesn't support multiple hashes");
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#getAlgorithmName()
- */
- public String getAlgorithmName()
- {
- return md5.getAlgorithmName() + " and " + sha1.getAlgorithmName();
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#getDigestSize()
- */
- public int getDigestSize()
- {
- return md5.getDigestSize() + sha1.getDigestSize();
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#update(byte)
- */
- public void update(byte in)
- {
- md5.update(in);
- sha1.update(in);
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#update(byte[], int, int)
- */
- public void update(byte[] in, int inOff, int len)
- {
- md5.update(in, inOff, len);
- sha1.update(in, inOff, len);
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#doFinal(byte[], int)
- */
- public int doFinal(byte[] out, int outOff)
- {
- if (context != null && TlsUtils.isSSL(context))
- {
- ssl3Complete(md5, SSL3Mac.IPAD, SSL3Mac.OPAD, 48);
- ssl3Complete(sha1, SSL3Mac.IPAD, SSL3Mac.OPAD, 40);
- }
-
- int i1 = md5.doFinal(out, outOff);
- int i2 = sha1.doFinal(out, outOff + i1);
- return i1 + i2;
- }
-
- /**
- * @see org.bouncycastle.crypto.Digest#reset()
- */
- public void reset()
- {
- md5.reset();
- sha1.reset();
- }
-
- protected void ssl3Complete(Digest d, byte[] ipad, byte[] opad, int padLength)
- {
- byte[] master_secret = context.getSecurityParameters().masterSecret;
-
- d.update(master_secret, 0, master_secret.length);
- d.update(ipad, 0, padLength);
-
- byte[] tmp = new byte[d.getDigestSize()];
- d.doFinal(tmp, 0);
-
- d.update(master_secret, 0, master_secret.length);
- d.update(opad, 0, padLength);
- d.update(tmp, 0, tmp.length);
- }
-}