1 files changed, 43 insertions, 0 deletions
diff --git a/src/crypto/blake256.h b/src/crypto/blake256.h
new file mode 100644
index 000000000..b9c2aad0d
--- /dev/null
+++ b/src/crypto/blake256.h
@@ -0,0 +1,43 @@
+#ifndef _BLAKE256_H_
+#define _BLAKE256_H_
+
+#include <stdint.h>
+
+typedef struct {
+  uint32_t h[8], s[4], t[2];
+  int buflen, nullt;
+  uint8_t buf[64];
+} state;
+
+typedef struct {
+  state inner;
+  state outer;
+} hmac_state;
+
+void blake256_init(state *);
+void blake224_init(state *);
+
+void blake256_update(state *, const uint8_t *, uint64_t);
+void blake224_update(state *, const uint8_t *, uint64_t);
+
+void blake256_final(state *, uint8_t *);
+void blake224_final(state *, uint8_t *);
+
+void blake256_hash(uint8_t *, const uint8_t *, uint64_t);
+void blake224_hash(uint8_t *, const uint8_t *, uint64_t);
+
+/* HMAC functions: */
+
+void hmac_blake256_init(hmac_state *, const uint8_t *, uint64_t);
+void hmac_blake224_init(hmac_state *, const uint8_t *, uint64_t);
+
+void hmac_blake256_update(hmac_state *, const uint8_t *, uint64_t);
+void hmac_blake224_update(hmac_state *, const uint8_t *, uint64_t);
+
+void hmac_blake256_final(hmac_state *, uint8_t *);
+void hmac_blake224_final(hmac_state *, uint8_t *);
+
+void hmac_blake256_hash(uint8_t *, const uint8_t *, uint64_t, const uint8_t *, uint64_t);
+void hmac_blake224_hash(uint8_t *, const uint8_t *, uint64_t, const uint8_t *, uint64_t);
+
+#endif /* _BLAKE256_H_ */