1 files changed, 41 insertions, 0 deletions
diff --git a/libs/libssh2/src/cipher-chachapoly.h b/libs/libssh2/src/cipher-chachapoly.h
new file mode 100644
index 0000000000..4d0015cb79
--- /dev/null
+++ b/libs/libssh2/src/cipher-chachapoly.h
@@ -0,0 +1,41 @@
+/* $OpenBSD: cipher-chachapoly.h,v 1.4 2014/06/24 01:13:21 djm Exp $ */
+
+/*
+ * Copyright (c) Damien Miller 2013 <djm@mindrot.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef CHACHA_POLY_AEAD_H
+#define CHACHA_POLY_AEAD_H
+
+#include "chacha.h"
+#include "poly1305.h"
+
+#define CHACHA_KEYLEN   32 /* Only 256 bit keys used here */
+
+struct chachapoly_ctx {
+    struct chacha_ctx main_ctx, header_ctx;
+};
+
+int chachapoly_init(struct chachapoly_ctx *cpctx,
+                    const u_char *key, u_int keylen);
+int chachapoly_crypt(struct chachapoly_ctx *cpctx, u_int seqnr,
+                     u_char *dest, const u_char *src, u_int len, u_int aadlen,
+                     int do_encrypt);
+int chachapoly_get_length(struct chachapoly_ctx *cpctx,
+                          u_int *plenp, u_int seqnr, const u_char *cp,
+                          u_int len);
+
+#endif /* CHACHA_POLY_AEAD_H */