initial commit

1 files changed, 33 insertions, 0 deletions

diff --git a/code/crypto/crypto.h b/code/crypto/crypto.h
new file mode 100644
index 0000000..7bd27d5
--- /dev/null
+++ b/code/crypto/crypto.h
@@ -0,0 +1,33 @@
+#include <stddef.h>
+
+#define CURVE25519_SIZE_KEY     32
+#define CHACHA20_SIZE_KEY       32
+#define POLY1305_SIZE_TAG       16
+#define CHACHA20_SIZE_NONCE     8
+
+#define ECP_ECDH_SIZE_KEY       32
+#define ECP_AEAD_SIZE_KEY       32
+#define ECP_AEAD_SIZE_TAG       16
+#define ECP_AEAD_SIZE_NONCE     8
+
+#define ECP_DSA_SIZE_KEY        32
+
+typedef uint8_t ecp_dh_public_t[ECP_ECDH_SIZE_KEY];
+typedef uint8_t ecp_dh_private_t[ECP_ECDH_SIZE_KEY];
+typedef uint8_t ecp_aead_key_t[ECP_AEAD_SIZE_KEY];
+typedef uint8_t ecp_dsa_public_t[ECP_DSA_SIZE_KEY];
+typedef uint8_t ecp_dsa_private_t[ECP_DSA_SIZE_KEY];
+
+int
+aead_chacha20_poly1305_seal(unsigned char *out, size_t *out_len, 
+    size_t max_out_len, unsigned char key[32], unsigned char tag_len,
+    const unsigned char *nonce, size_t nonce_len,
+    const unsigned char *in, size_t in_len,
+    const unsigned char *ad, size_t ad_len);
+
+int
+aead_chacha20_poly1305_open(unsigned char *out, size_t *out_len, 
+    size_t max_out_len, unsigned char key[32], unsigned char tag_len,
+    const unsigned char *nonce, size_t nonce_len,
+    const unsigned char *in, size_t in_len,
+    const unsigned char *ad, size_t ad_len);