From 2a8202e74846d191a321cca1202175af9db6107d Mon Sep 17 00:00:00 2001 From: dec05eba Date: Thu, 5 Nov 2020 01:45:06 +0100 Subject: Convert to sibs project --- lib/curve25519-donna/contrib/Curve25519Donna.java | 77 ----------------------- 1 file changed, 77 deletions(-) delete mode 100644 lib/curve25519-donna/contrib/Curve25519Donna.java (limited to 'lib/curve25519-donna/contrib/Curve25519Donna.java') 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)); - - } -} -- cgit v1.2.3