Welcome to mirror list, hosted at ThFree Co, Russian Federation.

gitlab.com/quite/humla-spongycastle.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRoberto Tyley <roberto.tyley@gmail.com>2014-07-15 01:38:01 +0400
committerRoberto Tyley <roberto.tyley@gmail.com>2014-07-26 11:23:17 +0400
commit7cb752aaf746dc0b473afeb9e892b7fbc12666c5 (patch)
treecc4f91ddc18332b5adbe82e3fcb040d976c90105 /core/src/main/java/org/spongycastle/crypto/DSA.java
parent551830f8ea5177042af2c7dd1fc90888bc67387d (diff)
Execute become-spongy.sh
https://github.com/rtyley/spongycastle/blob/3040af/become-spongy.sh
Diffstat (limited to 'core/src/main/java/org/spongycastle/crypto/DSA.java')
-rw-r--r--core/src/main/java/org/spongycastle/crypto/DSA.java36
1 files changed, 36 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/crypto/DSA.java b/core/src/main/java/org/spongycastle/crypto/DSA.java
new file mode 100644
index 00000000..7243ddd9
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/crypto/DSA.java
@@ -0,0 +1,36 @@
+package org.spongycastle.crypto;
+
+import java.math.BigInteger;
+
+/**
+ * interface for classes implementing algorithms modeled similar to the Digital Signature Alorithm.
+ */
+public interface DSA
+{
+ /**
+ * initialise the signer for signature generation or signature
+ * verification.
+ *
+ * @param forSigning true if we are generating a signature, false
+ * otherwise.
+ * @param param key parameters for signature generation.
+ */
+ public void init(boolean forSigning, CipherParameters param);
+
+ /**
+ * sign the passed in message (usually the output of a hash function).
+ *
+ * @param message the message to be signed.
+ * @return two big integers representing the r and s values respectively.
+ */
+ public BigInteger[] generateSignature(byte[] message);
+
+ /**
+ * verify the message message against the signature values r and s.
+ *
+ * @param message the message that was supposed to have been signed.
+ * @param r the r signature value.
+ * @param s the s signature value.
+ */
+ public boolean verifySignature(byte[] message, BigInteger r, BigInteger s);
+}