Add a pclmulqdq ghash implementation

1 files changed, 45 insertions, 0 deletions

diff --git a/src/crypto/mac/ghash/pclmulqdq/ghash_pclmulqdq.h b/src/crypto/mac/ghash/pclmulqdq/ghash_pclmulqdq.h
new file mode 100644
index 0000000..f2bc916
--- /dev/null
+++ b/src/crypto/mac/ghash/pclmulqdq/ghash_pclmulqdq.h
@@ -0,0 +1,45 @@
+/*
+  Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#include "../../../../crypto.h"
+
+
+typedef union _v2di {
+	uint64_t v __attribute__((vector_size(16)));
+	char v16 __attribute__((vector_size(16)));
+	long long int vll __attribute__((vector_size(16)));
+	uint64_t e[2];
+	fastd_block128_t block;
+} v2di;
+
+
+struct fastd_mac_state {
+	v2di H;
+};
+
+
+fastd_mac_state_t* fastd_ghash_pclmulqdq_init_state(fastd_context_t *ctx, const fastd_mac_context_t *mctx, const uint8_t *key);
+bool fastd_ghash_pclmulqdq_hash(fastd_context_t *ctx, const fastd_mac_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t n_blocks);