summaryrefslogtreecommitdiffstats
path: root/include/crypto/internal/poly1305.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--include/crypto/internal/poly1305.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/crypto/internal/poly1305.h b/include/crypto/internal/poly1305.h
new file mode 100644
index 000000000..196aa769f
--- /dev/null
+++ b/include/crypto/internal/poly1305.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_INTERNAL_POLY1305_H
+#define _CRYPTO_INTERNAL_POLY1305_H
+
+#include <asm/unaligned.h>
+#include <linux/types.h>
+#include <crypto/poly1305.h>
+
+/*
+ * Poly1305 core functions. These only accept whole blocks; the caller must
+ * handle any needed block buffering and padding. 'hibit' must be 1 for any
+ * full blocks, or 0 for the final block if it had to be padded. If 'nonce' is
+ * non-NULL, then it's added at the end to compute the Poly1305 MAC. Otherwise,
+ * only the ε-almost-∆-universal hash function (not the full MAC) is computed.
+ */
+
+void poly1305_core_setkey(struct poly1305_core_key *key,
+ const u8 raw_key[POLY1305_BLOCK_SIZE]);
+static inline void poly1305_core_init(struct poly1305_state *state)
+{
+ *state = (struct poly1305_state){};
+}
+
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_core_key *key, const void *src,
+ unsigned int nblocks, u32 hibit);
+void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
+ void *dst);
+
+#endif