Initial commit

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/crypto/chacha20poly1305.h b/src/crypto/chacha20poly1305.h
new file mode 100644
index 0000000..c44a17e
--- /dev/null
+++ b/src/crypto/chacha20poly1305.h
@@ -0,0 +1,35 @@
+/* Copyright 2015-2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+
+#ifndef CHACHA20POLY1305_H
+#define CHACHA20POLY1305_H
+
+#include <linux/types.h>
+
+enum chacha20poly1305_lengths {
+	CHACHA20POLY1305_KEYLEN = 32,
+	CHACHA20POLY1305_AUTHTAGLEN = 16
+};
+
+void chacha20poly1305_init(void);
+
+bool chacha20poly1305_encrypt(uint8_t *dst, const uint8_t *src, const size_t src_len,
+			      const uint8_t *ad, const size_t ad_len,
+			      const uint64_t nonce, const uint8_t key[CHACHA20POLY1305_KEYLEN]);
+
+bool chacha20poly1305_encrypt_sg(struct scatterlist *dst, struct scatterlist *src, const size_t src_len,
+				 const uint8_t *ad, const size_t ad_len,
+				 const uint64_t nonce, const uint8_t key[CHACHA20POLY1305_KEYLEN]);
+
+bool chacha20poly1305_decrypt(uint8_t *dst, const uint8_t *src, const size_t src_len,
+			      const uint8_t *ad, const size_t ad_len,
+			      const uint64_t nonce, const uint8_t key[CHACHA20POLY1305_KEYLEN]);
+
+bool chacha20poly1305_decrypt_sg(struct scatterlist *dst, struct scatterlist *src, const size_t src_len,
+				 const uint8_t *ad, const size_t ad_len,
+				 const uint64_t nonce, const uint8_t key[CHACHA20POLY1305_KEYLEN]);
+
+#ifdef DEBUG
+void chacha20poly1305_selftest(void);
+#endif
+
+#endif