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authordec05eba <dec05eba@protonmail.com>2020-11-05 01:45:06 +0100
committerdec05eba <dec05eba@protonmail.com>2020-11-05 01:45:06 +0100
commit2a8202e74846d191a321cca1202175af9db6107d (patch)
treea6f455caf07da1186851f343a237a4c4e4484f46 /lib/curve25519-donna/contrib/Curve25519Donna.java
parent8efa0ec17d8c262f9c3fd7603e8074f74a053708 (diff)
Convert to sibs projectHEADmaster
Diffstat (limited to 'lib/curve25519-donna/contrib/Curve25519Donna.java')
-rw-r--r--lib/curve25519-donna/contrib/Curve25519Donna.java77
1 files changed, 0 insertions, 77 deletions
diff --git a/lib/curve25519-donna/contrib/Curve25519Donna.java b/lib/curve25519-donna/contrib/Curve25519Donna.java
deleted file mode 100644
index e28cb53..0000000
--- a/lib/curve25519-donna/contrib/Curve25519Donna.java
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- James Robson
- Public domain.
-*/
-
-public class Curve25519Donna {
-
- final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();
-
- public static String bytesToHex(byte[] bytes) {
- char[] hexChars = new char[bytes.length * 2];
- int v;
- for ( int j = 0; j < bytes.length; j++ ) {
- v = bytes[j] & 0xFF;
- hexChars[j * 2] = hexArray[v >>> 4];
- hexChars[j * 2 + 1] = hexArray[v & 0x0F];
- }
- return new String(hexChars);
- }
-
- public native byte[] curve25519Donna(byte[] a, byte[] b);
- public native byte[] makePrivate(byte[] secret);
- public native byte[] getPublic(byte[] privkey);
- public native byte[] makeSharedSecret(byte[] privkey, byte[] theirPubKey);
- public native void helowrld();
-
- // Uncomment if your Java is 32-bit:
- //static { System.loadLibrary("Curve25519Donna"); }
-
- // Otherwise, load this 64-bit .jnilib:
- static { System.loadLibrary("Curve25519Donna_64"); }
-
- /*
- To give the old tires a kick (OSX):
- java -cp `pwd` Curve25519Donna
- */
- public static void main (String[] args) {
-
- Curve25519Donna c = new Curve25519Donna();
-
- // These should be 32 bytes long
- byte[] user1Secret = "abcdefghijklmnopqrstuvwxyz123456".getBytes();
- byte[] user2Secret = "654321zyxwvutsrqponmlkjihgfedcba".getBytes();
-
-
- // You can use the curve function directly...
-
- //byte[] o = c.curve25519Donna(a, b);
- //System.out.println("o = " + bytesToHex(o));
-
-
- // ... but it's not really necessary. Just use the following
- // convenience methods:
-
- byte[] privKey = c.makePrivate(user1Secret);
- byte[] pubKey = c.getPublic(privKey);
-
- byte[] privKey2 = c.makePrivate(user2Secret);
- byte[] pubKey2 = c.getPublic(privKey2);
-
- System.out.println("'user1' privKey = " + bytesToHex(privKey));
- System.out.println("'user1' pubKey = " + bytesToHex(pubKey));
- System.out.println("===================================================");
-
- System.out.println("'user2' privKey = " + bytesToHex(privKey2));
- System.out.println("'user2' pubKey = " + bytesToHex(pubKey2));
- System.out.println("===================================================");
-
-
- byte[] ss1 = c.makeSharedSecret(privKey, pubKey2);
- System.out.println("'user1' computes shared secret: " + bytesToHex(ss1));
-
- byte[] ss2 = c.makeSharedSecret(privKey2, pubKey);
- System.out.println("'user2' computes shared secret: " + bytesToHex(ss2));
-
- }
-}