1 files changed, 63 insertions, 0 deletions
diff --git a/libblake.h b/libblake.h
new file mode 100644
index 0000000..9f8f3d7
--- /dev/null
+++ b/libblake.h
@@ -0,0 +1,63 @@
+/* See LICENSE file for copyright and license details. */
+#ifndef LIBBLAKE_H
+#define LIBBLAKE_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if defined(__GNUC__)
+# define LIBBLAKE_PURE__ __attribute__((__pure__))
+#else
+# define LIBBLAKE_PURE__
+#endif
+
+void libblake_encode_hex(const void *data, size_t n, char out[/* static n * 2 + 1 */], int uppercase);
+size_t libblake_decode_hex(const char *data, size_t n, void *out);
+
+#define LIBBLAKE_BLAKE224_OUTPUT_SIZE (224 / 8)
+#define LIBBLAKE_BLAKE256_OUTPUT_SIZE (256 / 8)
+#define LIBBLAKE_BLAKE384_OUTPUT_SIZE (384 / 8)
+#define LIBBLAKE_BLAKE512_OUTPUT_SIZE (512 / 8)
+
+struct libblake_blakes_state {
+	uint_least32_t h[8];
+	uint_least32_t s[4];
+	uint_least32_t t[2];
+};
+
+struct libblake_blakeb_state {
+	uint_least64_t h[8];
+	uint_least64_t s[4];
+	uint_least64_t t[2];
+};
+
+struct libblake_blake224_state { struct libblake_blakes_state s; };
+struct libblake_blake256_state { struct libblake_blakes_state s; };
+struct libblake_blake384_state { struct libblake_blakeb_state b; };
+struct libblake_blake512_state { struct libblake_blakeb_state b; };
+
+void libblake_blake224_init(struct libblake_blake224_state *state);
+size_t libblake_blake224_update(struct libblake_blake224_state *state, const void *data, size_t len);
+void libblake_blake224_digest(struct libblake_blake224_state *state, void *data, size_t len, size_t bits,
+                              const char *suffix, unsigned char output[static LIBBLAKE_BLAKE224_OUTPUT_SIZE]);
+LIBBLAKE_PURE__ size_t libblake_blake224_digest_get_required_input_size(size_t len, size_t bits, const char *suffix);
+
+void libblake_blake256_init(struct libblake_blake256_state *state);
+size_t libblake_blake256_update(struct libblake_blake256_state *state, const void *data, size_t len);
+void libblake_blake256_digest(struct libblake_blake256_state *state, void *data, size_t len, size_t bits,
+                              const char *suffix, unsigned char output[static LIBBLAKE_BLAKE256_OUTPUT_SIZE]);
+LIBBLAKE_PURE__ size_t libblake_blake256_digest_get_required_input_size(size_t len, size_t bits, const char *suffix);
+
+void libblake_blake384_init(struct libblake_blake384_state *state);
+size_t libblake_blake384_update(struct libblake_blake384_state *state, const void *data, size_t len);
+void libblake_blake384_digest(struct libblake_blake384_state *state, void *data, size_t len, size_t bits,
+                              const char *suffix, unsigned char output[static LIBBLAKE_BLAKE384_OUTPUT_SIZE]);
+LIBBLAKE_PURE__ size_t libblake_blake384_digest_get_required_input_size(size_t len, size_t bits, const char *suffix);
+
+void libblake_blake512_init(struct libblake_blake512_state *state);
+size_t libblake_blake512_update(struct libblake_blake512_state *state, const void *data, size_t len);
+void libblake_blake512_digest(struct libblake_blake512_state *state, void *data, size_t len, size_t bits,
+                              const char *suffix, unsigned char output[static LIBBLAKE_BLAKE512_OUTPUT_SIZE]);
+LIBBLAKE_PURE__ size_t libblake_blake512_digest_get_required_input_size(size_t len, size_t bits, const char *suffix);
+
+#endif