diff options
Diffstat (limited to 'lib/curve25519-donna/contrib')
| -rw-r--r-- | lib/curve25519-donna/contrib/Curve25519Donna.c | 118 | ||||
| -rw-r--r-- | lib/curve25519-donna/contrib/Curve25519Donna.h | 53 | ||||
| -rw-r--r-- | lib/curve25519-donna/contrib/Curve25519Donna.java | 77 | ||||
| -rw-r--r-- | lib/curve25519-donna/contrib/make-snippets | 68 |
4 files changed, 316 insertions, 0 deletions
diff --git a/lib/curve25519-donna/contrib/Curve25519Donna.c b/lib/curve25519-donna/contrib/Curve25519Donna.c new file mode 100644 index 0000000..71b816c --- /dev/null +++ b/lib/curve25519-donna/contrib/Curve25519Donna.c @@ -0,0 +1,118 @@ +/* + James Robson + Public domain. +*/ + +#include "Curve25519Donna.h" +#include <stdio.h> +#include <stdlib.h> + +extern void curve25519_donna(unsigned char *output, const unsigned char *a, + const unsigned char *b); + +unsigned char* +as_unsigned_char_array(JNIEnv* env, jbyteArray array, int* len); + +jbyteArray as_byte_array(JNIEnv* env, unsigned char* buf, int len); + + +jbyteArray as_byte_array(JNIEnv* env, unsigned char* buf, int len) { + jbyteArray array = (*env)->NewByteArray(env, len); + (*env)->SetByteArrayRegion(env, array, 0, len, (jbyte*)buf); + + //int i; + //for (i = 0;i < len;++i) printf("%02x",(unsigned int) buf[i]); printf(" "); + //printf("\n"); + + return array; +} + +unsigned char* +as_unsigned_char_array(JNIEnv* env, jbyteArray array, int* len) { + + *len = (*env)->GetArrayLength(env, array); + unsigned char* buf = (unsigned char*)calloc(*len+1, sizeof(char)); + (*env)->GetByteArrayRegion (env, array, 0, *len, (jbyte*)buf); + return buf; + +} + +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_curve25519Donna + (JNIEnv *env, jobject obj, jbyteArray a, jbyteArray b) { + + unsigned char o[32] = {0}; + int l1, l2; + unsigned char* a1 = as_unsigned_char_array(env, a, &l1); + unsigned char* b1 = as_unsigned_char_array(env, b, &l2); + + if ( !(l1 == 32 && l2 == 32) ) { + fprintf(stderr, "Error, must be length 32"); + return NULL; + } + + + curve25519_donna(o, (const unsigned char*)a1, (const unsigned char*)b1); + + free(a1); + free(b1); + + return as_byte_array(env, (unsigned char*)o, 32); +} + +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_makePrivate + (JNIEnv *env, jobject obj, jbyteArray secret) { + + int len; + unsigned char* k = as_unsigned_char_array(env, secret, &len); + + if (len != 32) { + fprintf(stderr, "Error, must be length 32"); + return NULL; + } + + k[0] &= 248; + k[31] &= 127; + k[31] |= 64; + return as_byte_array(env, k, 32); +} + +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_getPublic + (JNIEnv *env, jobject obj, jbyteArray privkey) { + + int len; + unsigned char* private = as_unsigned_char_array(env, privkey, &len); + + if (len != 32) { + fprintf(stderr, "Error, must be length 32"); + return NULL; + } + + unsigned char pubkey[32]; + unsigned char basepoint[32] = {9}; + + curve25519_donna(pubkey, private, basepoint); + return as_byte_array(env, (unsigned char*)pubkey, 32); +} + +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_makeSharedSecret + (JNIEnv *env, jobject obj, jbyteArray privkey, jbyteArray their_pubkey) { + + unsigned char shared_secret[32]; + + int l1, l2; + unsigned char* private = as_unsigned_char_array(env, privkey, &l1); + unsigned char* pubkey = as_unsigned_char_array(env, their_pubkey, &l2); + + if ( !(l1 == 32 && l2 == 32) ) { + fprintf(stderr, "Error, must be length 32"); + return NULL; + } + + curve25519_donna(shared_secret, private, pubkey); + return as_byte_array(env, (unsigned char*)shared_secret, 32); +} + +JNIEXPORT void JNICALL Java_Curve25519Donna_helowrld + (JNIEnv *env, jobject obj) { + printf("helowrld\n"); +} diff --git a/lib/curve25519-donna/contrib/Curve25519Donna.h b/lib/curve25519-donna/contrib/Curve25519Donna.h new file mode 100644 index 0000000..3cd4ca0 --- /dev/null +++ b/lib/curve25519-donna/contrib/Curve25519Donna.h @@ -0,0 +1,53 @@ +/* DO NOT EDIT THIS FILE - it is machine generated */ +#include <jni.h> +/* Header for class Curve25519Donna */ + +#ifndef _Included_Curve25519Donna +#define _Included_Curve25519Donna +#ifdef __cplusplus +extern "C" { +#endif +/* + * Class: Curve25519Donna + * Method: curve25519Donna + * Signature: ([B[B)[B + */ +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_curve25519Donna + (JNIEnv *, jobject, jbyteArray, jbyteArray); + +/* + * Class: Curve25519Donna + * Method: makePrivate + * Signature: ([B)[B + */ +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_makePrivate + (JNIEnv *, jobject, jbyteArray); + +/* + * Class: Curve25519Donna + * Method: getPublic + * Signature: ([B)[B + */ +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_getPublic + (JNIEnv *, jobject, jbyteArray); + +/* + * Class: Curve25519Donna + * Method: makeSharedSecret + * Signature: ([B[B)[B + */ +JNIEXPORT jbyteArray JNICALL Java_Curve25519Donna_makeSharedSecret + (JNIEnv *, jobject, jbyteArray, jbyteArray); + +/* + * Class: Curve25519Donna + * Method: helowrld + * Signature: ()V + */ +JNIEXPORT void JNICALL Java_Curve25519Donna_helowrld + (JNIEnv *, jobject); + +#ifdef __cplusplus +} +#endif +#endif diff --git a/lib/curve25519-donna/contrib/Curve25519Donna.java b/lib/curve25519-donna/contrib/Curve25519Donna.java new file mode 100644 index 0000000..e28cb53 --- /dev/null +++ b/lib/curve25519-donna/contrib/Curve25519Donna.java @@ -0,0 +1,77 @@ +/* + 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)); + + } +} diff --git a/lib/curve25519-donna/contrib/make-snippets b/lib/curve25519-donna/contrib/make-snippets new file mode 100644 index 0000000..4568721 --- /dev/null +++ b/lib/curve25519-donna/contrib/make-snippets @@ -0,0 +1,68 @@ +CFLAGS=-Wmissing-prototypes -Wdeclaration-after-statement -O2 -Wall +CC=clang + + +targets: curve25519-donna.a curve25519-donna-c64.a + +test: test-donna test-donna-c64 + + +clean: + rm -f java-src/*.class java-src/*.jnilib *.dylib *.o *.a *.pp test-curve25519-donna test-curve25519-donna-c64 speed-curve25519-donna speed-curve25519-donna-c64 + +curve25519-donna.a: curve25519-donna.o + ar -rc curve25519-donna.a curve25519-donna.o + ranlib curve25519-donna.a + + +##### OSX dynamic library (32- & 64-bit) + +curve25519donna.dylib: curve25519-donna.a curve25519-donna-c64.a + $(CC) -m32 -fpic -shared -Wl,-all_load curve25519-donna.a -Wl,-all_load -o libcurve25519donna.dylib + $(CC) -fpic -shared -Wl,-all_load curve25519-donna-c64.a -Wl,-all_load -o libcurve25519donna_64.dylib + +##### OSX/Java section hence + +# Java JNI - compiled for OSX (32- & 64-bit) +Curve25519Donna.class: + cd java-src; javah -jni Curve25519Donna; cd .. + cd java-src; javac Curve25519Donna.java; cd .. + +Curve25519Donna.jnilib: curve25519-donna.a curve25519-donna-c64.a Curve25519Donna.class + @echo "Building 32-bit..." + clang -o java-src/libCurve25519Donna.jnilib $(CFLAGS) -lc -shared -m32 -I /System/Library/Frameworks/JavaVM.framework/Headers curve25519-donna.o java-src/Curve25519Donna.c + @echo "Building 64-bit..." + clang -o java-src/libCurve25519Donna_64.jnilib $(CFLAGS) -lc -shared -I /System/Library/Frameworks/JavaVM.framework/Headers curve25519-donna-c64.o java-src/Curve25519Donna.c + +##### OSX/Java section end + +curve25519-donna.o: curve25519-donna.c + $(CC) -c curve25519-donna.c $(CFLAGS) -m32 + +curve25519-donna-c64.a: curve25519-donna-c64.o + ar -rc curve25519-donna-c64.a curve25519-donna-c64.o + ranlib curve25519-donna-c64.a + +curve25519-donna-c64.o: curve25519-donna-c64.c + $(CC) -c curve25519-donna-c64.c $(CFLAGS) + +test-donna: test-curve25519-donna + ./test-curve25519-donna | head -123456 | tail -1 + +test-donna-c64: test-curve25519-donna-c64 + ./test-curve25519-donna-c64 | head -123456 | tail -1 + +test-curve25519-donna: test-curve25519.c curve25519-donna.a + $(CC) -o test-curve25519-donna test-curve25519.c curve25519-donna.a $(CFLAGS) -m32 + +test-curve25519-donna-c64: test-curve25519.c curve25519-donna-c64.a + $(CC) -o test-curve25519-donna-c64 test-curve25519.c curve25519-donna-c64.a $(CFLAGS) + +speed-curve25519-donna: speed-curve25519.c curve25519-donna.a + $(CC) -o speed-curve25519-donna speed-curve25519.c curve25519-donna.a $(CFLAGS) -m32 + +speed-curve25519-donna-c64: speed-curve25519.c curve25519-donna-c64.a + $(CC) -o speed-curve25519-donna-c64 speed-curve25519.c curve25519-donna-c64.a $(CFLAGS) + +test-sc-curve25519-donna-c64: test-sc-curve25519.c curve25519-donna-c64.a + $(CC) -o test-sc-curve25519-donna-c64 -O test-sc-curve25519.c curve25519-donna-c64.a test-sc-curve25519.s $(CFLAGS) |