[rng] Allow hash_df() to accept multiple underlying hash algorithms

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/crypto/entropy.c

 		/* 5.4.  tmp = tmp XOR
 		 *             df ( ( nonce || entropy_bitstring ), n )
 		 */
-		hash_df ( &data, sizeof ( data ), df_buf, sizeof ( df_buf ) );
+		hash_df ( &entropy_hash_df_algorithm, &data, sizeof ( data ),
+			  df_buf, sizeof ( df_buf ) );
 		for ( i = 0 ; i < tmp_len ; i++ )
 			tmp[i] ^= df_buf[i];
 

src/crypto/hash_df.c

 /**
  * Distribute entropy throughout a buffer
  *
+ * @v hash		Underlying hash algorithm
  * @v input		Input data
  * @v input_len		Length of input data, in bytes
  * @v output		Output buffer
  * There is no way for the Hash_df function to fail.  The returned
  * status SUCCESS is implicit.
  */
-void hash_df ( const void *input, size_t input_len, void *output,
-	      size_t output_len ) {
-	uint8_t context[HASH_DF_CTX_SIZE];
-	uint8_t digest[HASH_DF_OUTLEN_BYTES];
+void hash_df ( struct digest_algorithm *hash, const void *input,
+	       size_t input_len, void *output, size_t output_len ) {
+	uint8_t context[hash->ctxsize];
+	uint8_t digest[hash->digestsize];
 	size_t frag_len;
 	struct {
 		uint8_t pad[3];
 		 *                            || input_string )
 		 */
 		prefix.no_of_bits_to_return = htonl ( output_len * 8 );
-		digest_init ( &hash_df_algorithm, context );
-		digest_update ( &hash_df_algorithm, context, &prefix.counter,
+		digest_init ( hash, context );
+		digest_update ( hash, context, &prefix.counter,
 				( sizeof ( prefix ) -
 				  offsetof ( typeof ( prefix ), counter ) ) );
-		digest_update ( &hash_df_algorithm, context, input, input_len );
-		digest_final ( &hash_df_algorithm, context, digest );
+		digest_update ( hash, context, input, input_len );
+		digest_final ( hash, context, digest );
 
 		/* 4.2  counter = counter + 1 */
 		prefix.counter++;

src/include/ipxe/entropy.h

 #include <assert.h>
 #include <ipxe/api.h>
 #include <ipxe/hash_df.h>
+#include <ipxe/sha1.h>
 #include <config/entropy.h>
 
 /**
 extern int get_entropy_input_tmp ( unsigned int num_samples,
 				   uint8_t *tmp, size_t tmp_len );
 
+/** Use SHA-1 as the underlying hash algorithm for Hash_df
+ *
+ * Hash_df using SHA-1 is an Approved algorithm in ANS X9.82.
+ */
+#define entropy_hash_df_algorithm sha1_algorithm
+
+/** Underlying hash algorithm output length (in bytes) */
+#define ENTROPY_HASH_DF_OUTLEN_BYTES SHA1_DIGEST_SIZE
+
 /**
  * Obtain entropy input
  *
 		return min_len;
 	} else if ( tmp_len > max_len ) {
 		linker_assert ( ( tmp == tmp_buf ), data_inplace );
-		hash_df ( tmp, tmp_len, data, max_len );
+		hash_df ( &entropy_hash_df_algorithm, tmp, tmp_len,
+			  data, max_len );
 		return max_len;
 	} else {
 		/* (Data is already in-place.) */

src/include/ipxe/hash_df.h

 FILE_LICENCE ( GPL2_OR_LATER );
 
 #include <stdint.h>
-#include <ipxe/sha1.h>
+#include <ipxe/crypto.h>
 
-/** Use SHA-1 as the underlying hash algorithm
- *
- * Hash_df using SHA-1 is an Approved algorithm in ANS X9.82.
- */
-#define hash_df_algorithm sha1_algorithm
-
-/** Underlying hash algorithm output length (in bytes) */
-#define HASH_DF_OUTLEN_BYTES SHA1_DIGEST_SIZE
-
-/** Underlying hash algorithm context size (in bytes) */
-#define HASH_DF_CTX_SIZE SHA1_CTX_SIZE
-
-extern void hash_df ( const void *input, size_t input_len, void *output,
-		      size_t output_len );
+extern void hash_df ( struct digest_algorithm *hash, const void *input,
+		      size_t input_len, void *output, size_t output_len );
 
 #endif /* _IPXE_HASH_DF_H */

src/tests/hash_df_test.c

 #include <assert.h>
 #include <string.h>
 #include <ipxe/hash_df.h>
+#include <ipxe/sha1.h>
 #include <ipxe/test.h>
 
 /** Define inline input data */
 
 /** A Hash_df test */
 struct hash_df_test {
+	/** Underlying hash algorithm */
+	struct digest_algorithm *hash;
 	/** Input data */
 	const void *input;
 	/** Length of input data */
  * Define a Hash_df test
  *
  * @v name		Test name
+ * @v hash_algorithm	Underlying hash algorithm
  * @v input_array	Input data
  * @v expected_array	Expected output data
  * @ret test		Hash_df test
  */
-#define HASH_DF_TEST( name, input_array, expected_array )		\
-	static const uint8_t name ## _input [] = input_array;		\
-	static const uint8_t name ## _expected [] = expected_array;	\
-	static const struct hash_df_test name = {			\
-		.input = name ## _input,				\
-		.input_len = sizeof ( name ## _input ),			\
-		.expected = name ## _expected,				\
-		.expected_len = sizeof ( name ## _expected ),		\
+#define HASH_DF_TEST( name, hash_algorithm, input_array, expected_array ) \
+	static const uint8_t name ## _input [] = input_array;		  \
+	static const uint8_t name ## _expected [] = expected_array;	  \
+	static const struct hash_df_test name = {			  \
+		.hash = &(hash_algorithm),				  \
+		.input = name ## _input,				  \
+		.input_len = sizeof ( name ## _input ),			  \
+		.expected = name ## _expected,				  \
+		.expected_len = sizeof ( name ## _expected ),		  \
 	}
 
-/** Test 1 */
-HASH_DF_TEST ( test_1,
+/** SHA-1 Test 1 */
+HASH_DF_TEST ( test_sha1_1, sha1_algorithm,
 	INPUT ( 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
 		0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
 		0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
 		 0x67, 0x67, 0xb0, 0x5e, 0x83, 0xa9, 0x80, 0x40, 0x6d, 0x94,
 		 0xbe, 0xe3, 0x3c, 0xbb, 0x89 ) );
 
-/** Test 2 */
-HASH_DF_TEST ( test_2,
+/** SHA-1 Test 2 */
+HASH_DF_TEST ( test_sha1_2, sha1_algorithm,
 	INPUT ( 0x00, 0xd0, 0x8f, 0xb4, 0x41, 0xf2, 0xf4, 0xcb, 0x37, 0xcf,
 		0x6c, 0x24, 0x20, 0xa8, 0x2c, 0x74, 0x27, 0xac, 0xf7, 0xfc,
 		0xfd, 0x79, 0x90, 0x14, 0x38, 0x34, 0xa5, 0xc2, 0x56, 0xab,
 		 0x86, 0x3d, 0xa8, 0x81, 0xff, 0xcb, 0xb4, 0x34, 0xa6, 0xcc,
 		 0xb7, 0xda, 0x2f, 0xb2, 0x10 ) );
 
-/** Test 3 */
-HASH_DF_TEST ( test_3,
+/** SHA-1 Test 3 */
+HASH_DF_TEST ( test_sha1_3, sha1_algorithm,
 	INPUT ( 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
 		0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
 		0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
 		 0xe0, 0x2e, 0x85, 0xa2, 0x31, 0x4c, 0xe3, 0xd7, 0x4a, 0x93,
 		 0x32, 0x4b, 0x27, 0xbd, 0xe8 ) );
 
-/** Test 4 */
-HASH_DF_TEST ( test_4,
+/** SHA-1 Test 4 */
+HASH_DF_TEST ( test_sha1_4, sha1_algorithm,
 	INPUT ( 0x00, 0x99, 0xb9, 0x53, 0x7b, 0x84, 0x27, 0xb8, 0xce, 0x23,
 		0x21, 0x9a, 0x61, 0x1c, 0xbe, 0x61, 0x06, 0x44, 0xcf, 0x85,
 		0x03, 0xee, 0xc5, 0xba, 0x22, 0xde, 0x1a, 0xb2, 0x12, 0xc3,
 		 0xf4, 0x85, 0xda, 0x6c, 0xbf, 0x04, 0x16, 0xdc, 0xdc, 0x5f,
 		 0xb8, 0xbc, 0x9c, 0x94, 0xb6 ) );
 
-/** Test 5 */
-HASH_DF_TEST ( test_5,
+/** SHA-1 Test 5 */
+HASH_DF_TEST ( test_sha1_5, sha1_algorithm,
 	INPUT ( 0x01, 0xd0, 0x8f, 0xb4, 0x41, 0xf2, 0xf4, 0xcb, 0x37, 0xcf,
 		0x6c, 0x24, 0x20, 0xa8, 0x2c, 0x74, 0x27, 0xac, 0xf7, 0xfc,
 		0xfd, 0x79, 0x90, 0x14, 0x38, 0x34, 0xa5, 0xc2, 0x56, 0xab,
 		 0xb7, 0xc9, 0x89, 0x4f, 0xb8, 0x84, 0x65, 0xe0, 0xcf, 0xd1,
 		 0xcc, 0x26, 0x1e, 0x22, 0xc5 ) );
 
-/** Test 6 */
-HASH_DF_TEST ( test_6,
+/** SHA-1 Test 6 */
+HASH_DF_TEST ( test_sha1_6, sha1_algorithm,
 	INPUT ( 0x00, 0x0a, 0x04, 0x41, 0xa5, 0x2b, 0xed, 0xf7, 0x94, 0xf5,
 		0xaa, 0x62, 0x7b, 0xcb, 0xd8, 0x1f, 0x93, 0xe0, 0x11, 0xd5,
 		0x1f, 0x34, 0x74, 0x80, 0x2c, 0x37, 0x50, 0x76, 0x75, 0x51,
 		 0x8a, 0xf8, 0x47, 0xca, 0xcc, 0x4c, 0x92, 0xc6, 0x14, 0x44,
 		 0x85, 0xc2, 0x27, 0xca, 0x05 ) );
 
-/** Test 7 */
-HASH_DF_TEST ( test_7,
+/** SHA-1 Test 7 */
+HASH_DF_TEST ( test_sha1_7, sha1_algorithm,
 	INPUT ( 0x01, 0x0e, 0x16, 0x0a, 0x56, 0x07, 0x95, 0x4e, 0x7d, 0x79,
 		0xd5, 0xa2, 0x2b, 0xf9, 0x08, 0x0b, 0x10, 0xce, 0xb7, 0x3c,
 		0x62, 0x23, 0x07, 0xf9, 0xf5, 0x45, 0xbd, 0xb1, 0xa4, 0x61,
 		 0x51, 0x64, 0x54, 0x37, 0x28, 0x71, 0x7f, 0x17, 0x1f, 0xdb,
 		 0x02, 0xb2, 0xad, 0x57, 0x95 ) );
 
-/** Test 8 */
-HASH_DF_TEST ( test_8,
+/** SHA-1 Test 8 */
+HASH_DF_TEST ( test_sha1_8, sha1_algorithm,
 	INPUT ( 0x00, 0xdc, 0x24, 0xdf, 0x10, 0x2f, 0xa9, 0xf9, 0x6c, 0xc1,
 		0xcf, 0xf8, 0xc1, 0x16, 0xc7, 0x9d, 0x14, 0x97, 0xd7, 0xc2,
 		0x7b, 0xba, 0x5b, 0xa8, 0x01, 0xe1, 0x56, 0x21, 0x93, 0x35,
 		 0xd6, 0x41, 0x5f, 0x37, 0x83, 0xb0, 0x15, 0x67, 0x89, 0x1b,
 		 0x57, 0x66, 0x2a, 0xbb, 0x39 ) );
 
-/** Test 9 */
-HASH_DF_TEST ( test_9,
+/** SHA-1 Test 9 */
+HASH_DF_TEST ( test_sha1_9, sha1_algorithm,
 	INPUT ( 0x01, 0xd0, 0x8f, 0xb4, 0x41, 0xf2, 0xf4, 0xcb, 0x37, 0xcf,
 		0x6c, 0x24, 0x20, 0xa8, 0x2c, 0x74, 0x27, 0xac, 0xf7, 0xfc,
 		0xfd, 0x79, 0x90, 0x14, 0x38, 0x34, 0xa5, 0xc2, 0x56, 0xab,
 		 0xb4, 0x5d, 0x89, 0xdb, 0x61, 0x2c, 0xd9, 0xd2, 0x8a, 0x55,
 		 0xc0, 0xf0, 0xd1, 0xf8, 0xf9 ) );
 
-/** Test 10 */
-HASH_DF_TEST ( test_10,
+/** SHA-1 Test 10 */
+HASH_DF_TEST ( test_sha1_10, sha1_algorithm,
 	INPUT ( 0x00, 0x8f, 0xde, 0xc9, 0xe6, 0x18, 0x96, 0x36, 0xf0, 0xa5,
 		0xce, 0x53, 0xe8, 0x1c, 0x13, 0xac, 0x93, 0x84, 0xfa, 0xfb,
 		0xa0, 0xee, 0x50, 0xc1, 0xe2, 0xc8, 0xa0, 0x99, 0xde, 0x41,
 		 0x51, 0x95, 0xf4, 0x79, 0xcd, 0x76, 0x20, 0x22, 0x35, 0x10,
 		 0x2e, 0xf6, 0x27, 0x29, 0x19 ) );
 
-/** Test 11 */
-HASH_DF_TEST ( test_11,
+/** SHA-1 Test 11 */
+HASH_DF_TEST ( test_sha1_11, sha1_algorithm,
 	INPUT ( 0x01, 0x27, 0xaf, 0x40, 0x17, 0xca, 0xc5, 0xb3, 0x86, 0x24,
 		0xe8, 0x4c, 0x2d, 0x10, 0xef, 0xd7, 0x8d, 0xf4, 0xf4, 0x77,
 		0xd6, 0x54, 0x69, 0x5a, 0x04, 0x32, 0x32, 0x6b, 0x3a, 0x1c,
 		 0xa3, 0xfe, 0xa1, 0xc7, 0x11, 0x7d, 0x6f, 0x7d, 0xd2, 0xef,
 		 0x77, 0x7d, 0x7c, 0xf3, 0xeb ) );
 
-/** Test 12 */
-HASH_DF_TEST ( test_12,
+/** SHA-1 Test 12 */
+HASH_DF_TEST ( test_sha1_12, sha1_algorithm,
 	INPUT ( 0x00, 0x2c, 0x9c, 0x0d, 0x80, 0x03, 0xe3, 0x40, 0x23, 0xbe,
 		0x5b, 0x63, 0xfd, 0xb9, 0xd2, 0x24, 0xb4, 0x25, 0x0c, 0xc8,
 		0x15, 0x5b, 0xd1, 0xee, 0xd8, 0xe5, 0x5d, 0x91, 0x06, 0x2f,
 		 0x0e, 0x8b, 0xff, 0xf6, 0x0c, 0xb7, 0x7f, 0xa5, 0x4b, 0xb1,
 		 0x1a, 0x83, 0x31, 0xcb, 0x24 ) );
 
-/** Test 13 */
-HASH_DF_TEST ( test_13,
+/** SHA-1 Test 13 */
+HASH_DF_TEST ( test_sha1_13, sha1_algorithm,
 	INPUT ( 0x01, 0x99, 0xb9, 0x53, 0x7b, 0x84, 0x27, 0xb8, 0xce, 0x23,
 		0x21, 0x9a, 0x61, 0x1c, 0xbe, 0x61, 0x06, 0x44, 0xcf, 0x85,
 		0x03, 0xee, 0xc5, 0xba, 0x22, 0xde, 0x1a, 0xb2, 0x12, 0xc3,
 		 0xf0, 0x0c, 0x3b, 0xda, 0x59, 0x6b, 0x10, 0x88, 0x61, 0xf0,
 		 0x6b, 0xf9, 0x1b, 0x45, 0xd6 ) );
 
-/** Test 14 */
-HASH_DF_TEST ( test_14,
+/** SHA-1 Test 14 */
+HASH_DF_TEST ( test_sha1_14, sha1_algorithm,
 	INPUT ( 0x00, 0xe5, 0x04, 0x3d, 0x1b, 0x95, 0x4b, 0x34, 0xba, 0x60,
 		0xd2, 0x48, 0xe8, 0x83, 0xef, 0x49, 0x8c, 0x5c, 0x52, 0x36,
 		0xb8, 0x26, 0x0e, 0x23, 0x8e, 0x02, 0xc8, 0xd4, 0xfc, 0x5f,
 		 0xa6, 0xbc, 0xfc, 0xfc, 0x0f, 0x51, 0xfe, 0x2f, 0x77, 0xc1,
 		 0xc9, 0x9d, 0xf0, 0xa2, 0x09 ) );
 
-/** Test 15 */
-HASH_DF_TEST ( test_15,
+/** SHA-1 Test 15 */
+HASH_DF_TEST ( test_sha1_15, sha1_algorithm,
 	INPUT ( 0x01, 0x04, 0x43, 0xa0, 0x2c, 0x82, 0x5c, 0x31, 0x59, 0xf4,
 		0x5e, 0x8c, 0x0a, 0xe5, 0x9e, 0x8c, 0x76, 0x45, 0x69, 0x95,
 		0xc0, 0x35, 0x40, 0x46, 0x6a, 0x14, 0x54, 0x7c, 0xcb, 0xe8,
 		 0xd2, 0x7e, 0x2b, 0x2e, 0x42, 0x2b, 0x32, 0xb9, 0x7f, 0x05,
 		 0x0d, 0x1b, 0xd2, 0xb4, 0x90 ) );
 
-/** Test 16 */
-HASH_DF_TEST ( test_16,
+/** SHA-1 Test 16 */
+HASH_DF_TEST ( test_sha1_16, sha1_algorithm,
 	INPUT ( 0x00, 0x9d, 0xc3, 0x52, 0x08, 0xee, 0x2b, 0x8c, 0x58, 0x1e,
 		0xa3, 0x0b, 0xaa, 0xcb, 0x5d, 0x74, 0x31, 0x7a, 0x87, 0x94,
 		0x54, 0x10, 0x71, 0x7e, 0x58, 0xd3, 0x70, 0x5f, 0xbd, 0xc7,
 		 0xef, 0x85, 0x76, 0xe7, 0x5c, 0xb3, 0xcf, 0xe8, 0x22, 0x07,
 		 0x68, 0xb2, 0x6c, 0xe7, 0x7a ) );
 
-/** Test 17 */
-HASH_DF_TEST ( test_17,
+/** SHA-1 Test 17 */
+HASH_DF_TEST ( test_sha1_17, sha1_algorithm,
 	INPUT ( 0x01, 0x99, 0xb9, 0x53, 0x7b, 0x84, 0x27, 0xb8, 0xce, 0x23,
 		0x21, 0x9a, 0x61, 0x1c, 0xbe, 0x61, 0x06, 0x44, 0xcf, 0x85,
 		0x03, 0xee, 0xc5, 0xba, 0x22, 0xde, 0x1a, 0xb2, 0x12, 0xc3,
 		 0xaa, 0x8a, 0x6e, 0x6b, 0x8e, 0x6d, 0x56, 0xa4, 0x31, 0x33,
 		 0x3b, 0x40, 0x8e, 0x6f, 0xa8 ) );
 
-/** Test 18 */
-HASH_DF_TEST ( test_18,
+/** SHA-1 Test 18 */
+HASH_DF_TEST ( test_sha1_18, sha1_algorithm,
 	INPUT ( 0x00, 0x56, 0x3a, 0x5d, 0x20, 0x7d, 0x37, 0x70, 0x7b, 0xf5,
 		0xf2, 0x4d, 0x0b, 0xd4, 0x93, 0x5d, 0xc3, 0x8d, 0xbe, 0x04,
 		0x36, 0x37, 0xb3, 0xff, 0x8a, 0xb6, 0x8c, 0xfc, 0xe2, 0xf2,
 		 0xf6, 0xbc, 0xda, 0xf8, 0x1d, 0x28, 0x9c, 0xf4, 0xbd, 0x3c,
 		 0x91, 0xb7, 0x00, 0x5c, 0x18 ) );
 
-/** Test 19 */
-HASH_DF_TEST ( test_19,
+/** SHA-1 Test 19 */
+HASH_DF_TEST ( test_sha1_19, sha1_algorithm,
 	INPUT ( 0x01, 0x1c, 0x0e, 0x46, 0x75, 0x9b, 0x38, 0x55, 0x6a, 0x28,
 		0xa4, 0x5e, 0x7b, 0x83, 0xe1, 0x4d, 0xb8, 0x62, 0x8d, 0xb1,
 		0x62, 0x13, 0xe1, 0xba, 0x2d, 0x97, 0x74, 0xf6, 0xc0, 0xac,
 		 0x0a, 0xb0, 0x7d, 0x12, 0x08, 0xb6, 0xbd, 0x66, 0x5b, 0x30,
 		 0x0a, 0xa4, 0xdb, 0x9c, 0x3e ) );
 
-/** Test 20 */
-HASH_DF_TEST ( test_20,
+/** SHA-1 Test 20 */
+HASH_DF_TEST ( test_sha1_20, sha1_algorithm,
 	INPUT ( 0x00, 0x60, 0x01, 0x93, 0xc8, 0xf6, 0x03, 0x1a, 0x2d, 0x49,
 		0x37, 0x2a, 0x8b, 0x0f, 0x60, 0xf6, 0x8c, 0x1d, 0xfd, 0xac,
 		0xd4, 0xf8, 0xea, 0x01, 0x37, 0x47, 0xd7, 0x14, 0x82, 0x33,
  */
 #define hash_df_ok( test ) do {						\
 	uint8_t output[ (test)->expected_len ];				\
-	hash_df ( (test)->input, (test)->input_len, output,		\
-		  sizeof ( output ) );					\
+	hash_df ( (test)->hash, (test)->input, (test)->input_len,	\
+		  output, sizeof ( output ) );				\
 	ok ( memcmp ( (test)->expected, output,				\
 		      sizeof ( output ) ) == 0 );			\
 	} while ( 0 )
  */
 static void hash_df_test_exec ( void ) {
 
-	hash_df_ok ( &test_1 );
-	hash_df_ok ( &test_2 );
-	hash_df_ok ( &test_3 );
-	hash_df_ok ( &test_4 );
-	hash_df_ok ( &test_5 );
-	hash_df_ok ( &test_6 );
-	hash_df_ok ( &test_7 );
-	hash_df_ok ( &test_8 );
-	hash_df_ok ( &test_9 );
-	hash_df_ok ( &test_10 );
-	hash_df_ok ( &test_11 );
-	hash_df_ok ( &test_12 );
-	hash_df_ok ( &test_13 );
-	hash_df_ok ( &test_14 );
-	hash_df_ok ( &test_15 );
-	hash_df_ok ( &test_16 );
-	hash_df_ok ( &test_17 );
-	hash_df_ok ( &test_18 );
-	hash_df_ok ( &test_19 );
-	hash_df_ok ( &test_20 );
+	hash_df_ok ( &test_sha1_1 );
+	hash_df_ok ( &test_sha1_2 );
+	hash_df_ok ( &test_sha1_3 );
+	hash_df_ok ( &test_sha1_4 );
+	hash_df_ok ( &test_sha1_5 );
+	hash_df_ok ( &test_sha1_6 );
+	hash_df_ok ( &test_sha1_7 );
+	hash_df_ok ( &test_sha1_8 );
+	hash_df_ok ( &test_sha1_9 );
+	hash_df_ok ( &test_sha1_10 );
+	hash_df_ok ( &test_sha1_11 );
+	hash_df_ok ( &test_sha1_12 );
+	hash_df_ok ( &test_sha1_13 );
+	hash_df_ok ( &test_sha1_14 );
+	hash_df_ok ( &test_sha1_15 );
+	hash_df_ok ( &test_sha1_16 );
+	hash_df_ok ( &test_sha1_17 );
+	hash_df_ok ( &test_sha1_18 );
+	hash_df_ok ( &test_sha1_19 );
+	hash_df_ok ( &test_sha1_20 );
 }
 
 /** Hash_df self-test */