X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fbouncycastle%2Fcrypto%2FDigest.java;fp=src%2Forg%2Fbouncycastle%2Fcrypto%2FDigest.java;h=844c28b0376e4310e3ef2c0339b7307975155c2f;hb=e5e9355b4f4e0e2c8de9068a71c1e3cc26fa9905;hp=0000000000000000000000000000000000000000;hpb=f35445729371789b3d496f426d7f87542f8e1a45;p=org.ibex.core.git

diff --git a/src/org/bouncycastle/crypto/Digest.java b/src/org/bouncycastle/crypto/Digest.java
new file mode 100644
index 0000000..844c28b
--- /dev/null
+++ b/src/org/bouncycastle/crypto/Digest.java
@@ -0,0 +1,51 @@
+package org.bouncycastle.crypto;
+
+/**
+ * interface that a message digest conforms to.
+ */
+public interface Digest
+{
+    /**
+     * return the algorithm name
+     *
+     * @return the algorithm name
+     */
+    public String getAlgorithmName();
+
+    /**
+     * return the size, in bytes, of the digest produced by this message digest.
+     *
+     * @return the size, in bytes, of the digest produced by this message digest.
+     */
+	public int getDigestSize();
+
+    /**
+     * update the message digest with a single byte.
+     *
+     * @param in the input byte to be entered.
+     */
+	public void update(byte in);
+
+    /**
+     * update the message digest with a block of bytes.
+     *
+     * @param in the byte array containing the data.
+     * @param inOff the offset into the byte array where the data starts.
+     * @param len the length of the data.
+     */
+	public void update(byte[] in, int inOff, int len);
+
+    /**
+     * close the digest, producing the final digest value. The doFinal
+     * call leaves the digest reset.
+     *
+     * @param out the array the digest is to be copied into.
+     * @param outOff the offset into the out array the digest is to start at.
+     */
+	public int doFinal(byte[] out, int outOff);
+
+    /**
+     * reset the digest back to it's initial state.
+     */
+    public void reset();
+}