1 files changed, 54 insertions, 0 deletions
diff --git a/src/crypto/include/zinc/chacha20poly1305.h b/src/crypto/include/zinc/chacha20poly1305.h
new file mode 100644
index 0000000..b607c76
--- /dev/null
+++ b/src/crypto/include/zinc/chacha20poly1305.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _ZINC_CHACHA20POLY1305_H
+#define _ZINC_CHACHA20POLY1305_H
+
+#include <linux/simd.h>
+#include <linux/types.h>
+
+struct scatterlist;
+
+enum chacha20poly1305_lengths {
+	XCHACHA20POLY1305_NONCELEN = 24,
+	CHACHA20POLY1305_KEYLEN = 32,
+	CHACHA20POLY1305_AUTHTAGLEN = 16
+};
+
+void chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+			      const u8 *ad, const size_t ad_len,
+			      const u64 nonce,
+			      const u8 key[CHACHA20POLY1305_KEYLEN]);
+
+bool __must_check chacha20poly1305_encrypt_sg(
+	struct scatterlist *dst, struct scatterlist *src, const size_t src_len,
+	const u8 *ad, const size_t ad_len, const u64 nonce,
+	const u8 key[CHACHA20POLY1305_KEYLEN], simd_context_t simd_context);
+
+bool __must_check
+chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+			 const u8 *ad, const size_t ad_len, const u64 nonce,
+			 const u8 key[CHACHA20POLY1305_KEYLEN]);
+
+bool __must_check chacha20poly1305_decrypt_sg(
+	struct scatterlist *dst, struct scatterlist *src, const size_t src_len,
+	const u8 *ad, const size_t ad_len, const u64 nonce,
+	const u8 key[CHACHA20POLY1305_KEYLEN], simd_context_t simd_context);
+
+void xchacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+			       const u8 *ad, const size_t ad_len,
+			       const u8 nonce[XCHACHA20POLY1305_NONCELEN],
+			       const u8 key[CHACHA20POLY1305_KEYLEN]);
+
+bool __must_check xchacha20poly1305_decrypt(
+	u8 *dst, const u8 *src, const size_t src_len, const u8 *ad,
+	const size_t ad_len, const u8 nonce[XCHACHA20POLY1305_NONCELEN],
+	const u8 key[CHACHA20POLY1305_KEYLEN]);
+
+#ifdef DEBUG
+bool chacha20poly1305_selftest(void);
+#endif
+
+#endif /* _ZINC_CHACHA20POLY1305_H */