1 files changed, 89 insertions, 0 deletions
diff --git a/srtp/crypto/macSkein.cpp b/srtp/crypto/macSkein.cpp
new file mode 100644
index 0000000..ba4c260
--- /dev/null
+++ b/srtp/crypto/macSkein.cpp
@@ -0,0 +1,89 @@
+/*
+  Copyright (C) 2010 Werner Dittmann
+
+  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/>.
+*/
+
+#include <crypto/macSkein.h>
+#include <stdlib.h>
+
+void macSkein(uint8_t* key, int32_t key_length,
+               const uint8_t* data, uint32_t data_length,
+               uint8_t* mac, int32_t mac_length, SkeinSize_t skeinSize)
+{
+    SkeinCtx_t ctx;
+
+    skeinCtxPrepare(&ctx, skeinSize);
+
+    skeinMacInit(&ctx, key, key_length, mac_length);
+    skeinUpdate(&ctx, data, data_length);
+    skeinFinal(&ctx, mac);
+}
+
+void macSkein(uint8_t* key, int32_t key_length,
+               const uint8_t* data[], uint32_t data_length[],
+               uint8_t* mac, int32_t mac_length, SkeinSize_t skeinSize)
+{
+    SkeinCtx_t ctx;
+
+    skeinCtxPrepare(&ctx, skeinSize);
+
+    skeinMacInit(&ctx, key, key_length, mac_length);
+    while (*data) {
+        skeinUpdate(&ctx, *data, *data_length);
+        data++;
+        data_length ++;
+    }
+    skeinFinal(&ctx, mac);
+}
+
+void* createSkeinMacContext(uint8_t* key, int32_t key_length, 
+                            int32_t mac_length, SkeinSize_t skeinSize)
+{
+    SkeinCtx_t* ctx = (SkeinCtx_t*)malloc(sizeof(SkeinCtx_t));
+
+    skeinCtxPrepare(ctx, skeinSize);
+    skeinMacInit(ctx, key, key_length, mac_length);
+    return ctx;
+}
+
+void macSkeinCtx(void* ctx, const uint8_t* data, uint32_t data_length,
+                uint8_t* mac)
+{
+    SkeinCtx_t* pctx = (SkeinCtx_t*)ctx;
+
+    skeinUpdate(pctx, data, data_length);
+    skeinFinal(pctx, mac);
+    skeinReset(pctx);
+}
+
+void macSkeinCtx(void* ctx, const uint8_t* data[], uint32_t data_length[],
+                uint8_t* mac)
+{
+    SkeinCtx_t* pctx = (SkeinCtx_t*)ctx;
+
+    while (*data) {
+        skeinUpdate(pctx, *data, *data_length);
+        data++;
+        data_length++;
+    }
+    skeinFinal(pctx, mac);
+    skeinReset(pctx);
+}
+
+void freeSkeinMacContext(void* ctx)
+{
+    if (ctx)
+        free(ctx);
+}