--- /dev/null
+/* twister-large.h */
+
+#ifndef TWISTER_large_H_
+#define TWISTER_large_H_
+
+#include <stdint.h>
+#include "twister.h"
+
+typedef uint8_t twister384_hash_t[384/8];
+typedef uint8_t twister512_hash_t[512/8];
+
+typedef struct {
+ twister_state_t state;
+ twister_checksum_t checksum;
+} twister_large_ctx_t;
+
+typedef twister_large_ctx_t twister384_ctx_t;
+typedef twister_large_ctx_t twister512_ctx_t;
+
+/*********************************************************************/
+
+void twister_large_nextBlock(twister_large_ctx_t* ctx, const void* msg);
+void twister_large_init(twister_large_ctx_t* ctx, uint16_t hashsize_b);
+void twister_large_lastBlock(twister_large_ctx_t* ctx, const void* msg, uint16_t length_b);
+void twister_large_ctx2hash(void* dest, twister_large_ctx_t* ctx, uint16_t hashsize_b);
+
+/*********************************************************************/
+
+void twister384_init(twister384_ctx_t* ctx);
+void twister384_nextBlock(twister384_ctx_t* ctx, const void* msg);
+void twister384_lastBlock(twister384_ctx_t* ctx, const void* msg, uint16_t length_b);
+void twister384_ctx2hash(void* dest, twister384_ctx_t* ctx);
+void twister384(void* dest, const void* msg, uint32_t msg_length_b);
+
+/*********************************************************************/
+
+void twister512_init(twister512_ctx_t* ctx);
+void twister512_nextBlock(twister512_ctx_t* ctx, const void* msg);
+void twister512_lastBlock(twister512_ctx_t* ctx, const void* msg, uint16_t length_b);
+void twister512_ctx2hash(void* dest, twister512_ctx_t* ctx);
+void twister512(void* dest, const void* msg, uint32_t msg_length_b);
+
+
+#endif /* TWISTER_large_H_ */
+