Merge remote-tracking branch 'origin/main' into experimental-bots-pr

1 files changed, 46 insertions, 0 deletions

diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
new file mode 100644
index 00000000..ba54f3bd
--- /dev/null
+++ b/include/crypto/poly1305.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef OSSL_CRYPTO_POLY1305_H
+# define OSSL_CRYPTO_POLY1305_H
+# pragma once
+
+#include <stddef.h>
+
+#define POLY1305_BLOCK_SIZE  16
+#define POLY1305_DIGEST_SIZE 16
+#define POLY1305_KEY_SIZE    32
+
+typedef struct poly1305_context POLY1305;
+
+typedef void (*poly1305_blocks_f) (void *ctx, const unsigned char *inp,
+                                   size_t len, unsigned int padbit);
+typedef void (*poly1305_emit_f) (void *ctx, unsigned char mac[16],
+                                 const unsigned int nonce[4]);
+
+struct poly1305_context {
+    double opaque[24];  /* large enough to hold internal state, declared
+                         * 'double' to ensure at least 64-bit invariant
+                         * alignment across all platforms and
+                         * configurations */
+    unsigned int nonce[4];
+    unsigned char data[POLY1305_BLOCK_SIZE];
+    size_t num;
+    struct {
+        poly1305_blocks_f blocks;
+        poly1305_emit_f emit;
+    } func;
+};
+
+size_t Poly1305_ctx_size(void);
+void Poly1305_Init(POLY1305 *ctx, const unsigned char key[32]);
+void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len);
+void Poly1305_Final(POLY1305 *ctx, unsigned char mac[16]);
+
+#endif /* OSSL_CRYPTO_POLY1305_H */