diff --git a/sha4.h b/sha4.h
index a1528ca..0a90604 100644
--- a/sha4.h
+++ b/sha4.h
@@ -89,74 +89,6 @@ void sha4_finish( sha4_context *ctx, unsigned char output[64] );
 void sha4( const unsigned char *input, int ilen,
            unsigned char output[64], int is384 );
 
-/**
- * \brief          Output = SHA-512( file contents )
- *
- * \param path     input file name
- * \param output   SHA-384/512 checksum result
- * \param is384    0 = use SHA512, 1 = use SHA384
- *
- * \return         0 if successful, 1 if fopen failed,
- *                 or 2 if fread failed
- */
-int sha4_file( const char *path, unsigned char output[64], int is384 );
-
-/**
- * \brief          SHA-512 HMAC context setup
- *
- * \param ctx      HMAC context to be initialized
- * \param is384    0 = use SHA512, 1 = use SHA384
- * \param key      HMAC secret key
- * \param keylen   length of the HMAC key
- */
-void sha4_hmac_starts( sha4_context *ctx, const unsigned char *key, int keylen,
-                       int is384 );
-
-/**
- * \brief          SHA-512 HMAC process buffer
- *
- * \param ctx      HMAC context
- * \param input    buffer holding the  data
- * \param ilen     length of the input data
- */
-void sha4_hmac_update( sha4_context *ctx, const unsigned char *input, int ilen );
-
-/**
- * \brief          SHA-512 HMAC final digest
- *
- * \param ctx      HMAC context
- * \param output   SHA-384/512 HMAC checksum result
- */
-void sha4_hmac_finish( sha4_context *ctx, unsigned char output[64] );
-
-/**
- * \brief          SHA-512 HMAC context reset
- *
- * \param ctx      HMAC context to be reset
- */
-void sha4_hmac_reset( sha4_context *ctx );
-
-/**
- * \brief          Output = HMAC-SHA-512( hmac key, input buffer )
- *
- * \param key      HMAC secret key
- * \param keylen   length of the HMAC key
- * \param input    buffer holding the  data
- * \param ilen     length of the input data
- * \param output   HMAC-SHA-384/512 result
- * \param is384    0 = use SHA512, 1 = use SHA384
- */
-void sha4_hmac( const unsigned char *key, int keylen,
-                const unsigned char *input, int ilen,
-                unsigned char output[64], int is384 );
-
-/**
- * \brief          Checkup routine
- *
- * \return         0 if successful, or 1 if the test failed
- */
-int sha4_self_test( int verbose );
-
 #ifdef __cplusplus
 }
 #endif