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| -rw-r--r-- | README | 2 | ||||
| -rw-r--r-- | java-c-jni/SHA3.java | 106 |
2 files changed, 107 insertions, 1 deletions
@@ -2,7 +2,7 @@ COMPLETE STATUS: Pure Java 1.2+ :: optimised Python 3 :: optimised C ISO C90 :: optimised - Java/C JNI :: planned (after c) + Java/C JNI :: under development NASM :: planned (maybe, after jni) Haskell :: planned (maybe) Python 2 :: planned (maybe) diff --git a/java-c-jni/SHA3.java b/java-c-jni/SHA3.java new file mode 100644 index 0000000..283c5df --- /dev/null +++ b/java-c-jni/SHA3.java @@ -0,0 +1,106 @@ +/** + * sha3sum – SHA-3 (Keccak) checksum calculator + * + * Copyright © 2013 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + + +/** + * SHA-3/Keccak hash algorithm implementation + * + * @author Mattias Andrée <a href="mailto:maandree@member.fsf.org">maandree@member.fsf.org</a> + */ +public class SHA3 +{ + /** + * Hidden constructor + */ + private SHA3() + { + // Inhibit instansiation + } + + + + /** + * Class initialiser + */ + static + { + /* TODO load lib here */ + } + + + + /** + * Initialise Keccak sponge + * + * @param r The bitrate + * @param c The capacity + * @param n The output size + */ + public static native void initialise(int r, int c, int n); + + + /** + * Absorb the more of the message message to the Keccak sponge + * + * @param msg The partial message + */ + public static void update(byte[] msg) + { + update(msg, msg.length); + } + + + /** + * Absorb the more of the message message to the Keccak sponge + * + * @param msg The partial message + * @param msglen The length of the partial message + */ + public static native void update(byte[] msg, int msglen); + + + /** + * Squeeze the Keccak sponge + */ + public static byte[] digest() + { + return digest(null); + } + + + /** + * Absorb the last part of the message and squeeze the Keccak sponge + * + * @param msg The rest of the message + */ + public static byte[] digest(byte[] msg) + { + return digest(msg, msg == null ? 0 : msg.length); + } + + + /** + * Absorb the last part of the message and squeeze the Keccak sponge + * + * @param msg The rest of the message + * @param msglen The length of the partial message + */ + public static native byte[] digest(byte[] msg, int msglen); + +} |