diff --git a/tests/suites/test_suite_pkcs1_v15.data b/tests/suites/test_suite_pkcs1_v15.data
index d2b2218743..4aca0d385f 100644
--- a/tests/suites/test_suite_pkcs1_v15.data
+++ b/tests/suites/test_suite_pkcs1_v15.data
@@ -46,11 +46,11 @@ pkcs1_rsaes_v15_decrypt:1024:16:"eecfae81b1b9b3c908810b10a1b5600199eb9f44aef4fda
 
 RSASSA-V15 Signing Test Vector Int
 depends_on:MBEDTLS_SHA1_C
-pkcs1_rsassa_v15_sign:1024:16:"d17f655bf27c8b16d35462c905cc04a26f37e2a67fa9c0ce0dced472394a0df743fe7f929e378efdb368eddff453cf007af6d948e0ade757371f8a711e278f6b":16:"c6d92b6fee7414d1358ce1546fb62987530b90bd15e0f14963a5e2635adb69347ec0c01b2ab1763fd8ac1a592fb22757463a982425bb97a3a437c5bf86d03f2f":16:"a2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5":16:"010001":MBEDTLS_MD_SHA1:MBEDTLS_MD_SHA1:"859eef2fd78aca00308bdc471193bf55bf9d78db8f8a672b484634f3c9c26e6478ae10260fe0dd8c082e53a5293af2173cd50c6d5d354febf78b26021c25c02712e78cd4694c9f469777e451e7f8e9e04cd3739c6bbfedae487fb55644e9ca74ff77a53cb729802f6ed4a5ffa8ba159890fc":"e3b5d5d002c1bce50c2b65ef88a188d83bce7e61":"2154f928615e5101fcdeb57bc08fc2f35c3d5996403861ae3efb1d0712f8bb05cc21f7f5f11f62e5b6ea9f0f2b62180e5cbe7ba535032d6ac8068fff7f362f73d2c3bf5eca6062a1723d7cfd5abb6dcf7e405f2dc560ffe6fc37d38bee4dc9e24fe2bece3e3b4a3f032701d3f0947b42930083dd4ad241b3309b514595482d42":0
+pkcs1_rsassa_v15_sign:1024:16:"d17f655bf27c8b16d35462c905cc04a26f37e2a67fa9c0ce0dced472394a0df743fe7f929e378efdb368eddff453cf007af6d948e0ade757371f8a711e278f6b":16:"c6d92b6fee7414d1358ce1546fb62987530b90bd15e0f14963a5e2635adb69347ec0c01b2ab1763fd8ac1a592fb22757463a982425bb97a3a437c5bf86d03f2f":16:"a2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5":16:"010001":MBEDTLS_MD_SHA1:MBEDTLS_MD_SHA1:"37b66ae0445843353d47ecb0b4fd14c110e62d6a":"e3b5d5d002c1bce50c2b65ef88a188d83bce7e61":"2154f928615e5101fcdeb57bc08fc2f35c3d5996403861ae3efb1d0712f8bb05cc21f7f5f11f62e5b6ea9f0f2b62180e5cbe7ba535032d6ac8068fff7f362f73d2c3bf5eca6062a1723d7cfd5abb6dcf7e405f2dc560ffe6fc37d38bee4dc9e24fe2bece3e3b4a3f032701d3f0947b42930083dd4ad241b3309b514595482d42":0
 
 RSASSA-V15 Verification Test Vector Int
 depends_on:MBEDTLS_SHA1_C
-pkcs1_rsassa_v15_verify:1024:16:"a2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5":16:"010001":MBEDTLS_MD_SHA1:MBEDTLS_MD_SHA1:"859eef2fd78aca00308bdc471193bf55bf9d78db8f8a672b484634f3c9c26e6478ae10260fe0dd8c082e53a5293af2173cd50c6d5d354febf78b26021c25c02712e78cd4694c9f469777e451e7f8e9e04cd3739c6bbfedae487fb55644e9ca74ff77a53cb729802f6ed4a5ffa8ba159890fc":"e3b5d5d002c1bce50c2b65ef88a188d83bce7e61":"2154f928615e5101fcdeb57bc08fc2f35c3d5996403861ae3efb1d0712f8bb05cc21f7f5f11f62e5b6ea9f0f2b62180e5cbe7ba535032d6ac8068fff7f362f73d2c3bf5eca6062a1723d7cfd5abb6dcf7e405f2dc560ffe6fc37d38bee4dc9e24fe2bece3e3b4a3f032701d3f0947b42930083dd4ad241b3309b514595482d42":0
+pkcs1_rsassa_v15_verify:1024:16:"a2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5":16:"010001":MBEDTLS_MD_SHA1:MBEDTLS_MD_SHA1:"37b66ae0445843353d47ecb0b4fd14c110e62d6a":"e3b5d5d002c1bce50c2b65ef88a188d83bce7e61":"2154f928615e5101fcdeb57bc08fc2f35c3d5996403861ae3efb1d0712f8bb05cc21f7f5f11f62e5b6ea9f0f2b62180e5cbe7ba535032d6ac8068fff7f362f73d2c3bf5eca6062a1723d7cfd5abb6dcf7e405f2dc560ffe6fc37d38bee4dc9e24fe2bece3e3b4a3f032701d3f0947b42930083dd4ad241b3309b514595482d42":0
 
 RSAES-V15 decoding: good, payload=max, tight output buffer
 pkcs1_v15_decode:"0002505152535455565700":117:117:0
diff --git a/tests/suites/test_suite_pkcs1_v15.function b/tests/suites/test_suite_pkcs1_v15.function
index 0bd3f81a0a..82842af133 100644
--- a/tests/suites/test_suite_pkcs1_v15.function
+++ b/tests/suites/test_suite_pkcs1_v15.function
@@ -270,8 +270,6 @@ void pkcs1_rsassa_v15_sign( int mod, int radix_P, char * input_P, int radix_Q,
                             data_t * message_str, data_t * rnd_buf,
                             data_t * result_str, int result )
 {
-    unsigned char hash_result[MBEDTLS_MD_MAX_SIZE];
-    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( digest );
     unsigned char output[128];
     mbedtls_rsa_context ctx;
     mbedtls_mpi N, P, Q, E;
@@ -288,7 +286,6 @@ void pkcs1_rsassa_v15_sign( int mod, int radix_P, char * input_P, int radix_Q,
     TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
                                           MBEDTLS_RSA_PKCS_V15, hash ) == 0 );
 
-    memset( hash_result, 0x00, sizeof( hash_result ) );
     memset( output, 0x00, sizeof( output ) );
 
     TEST_ASSERT( mbedtls_test_read_mpi( &P, radix_P, input_P ) == 0 );
@@ -301,12 +298,9 @@ void pkcs1_rsassa_v15_sign( int mod, int radix_P, char * input_P, int radix_Q,
     TEST_ASSERT( mbedtls_rsa_complete( &ctx ) == 0 );
     TEST_ASSERT( mbedtls_rsa_check_privkey( &ctx ) == 0 );
 
-    if( md_info != NULL )
-        TEST_ASSERT( mbedtls_md( md_info, message_str->x, message_str->len, hash_result ) == 0 );
-
     TEST_ASSERT( mbedtls_rsa_pkcs1_sign(
                      &ctx, &mbedtls_test_rnd_buffer_rand, &info,
-                     digest, mbedtls_md_get_size( md_info ), hash_result,
+                     digest, message_str->len, message_str->x,
                      output ) == result );
     if( result == 0 )
     {
@@ -328,8 +322,6 @@ void pkcs1_rsassa_v15_verify( int mod, int radix_N, char * input_N,
                               int hash, data_t * message_str, char * salt,
                               data_t * result_str, int result )
 {
-    unsigned char hash_result[MBEDTLS_MD_MAX_SIZE];
-    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( digest );
     mbedtls_rsa_context ctx;
     mbedtls_mpi N, E;
     ((void) salt);
@@ -338,7 +330,6 @@ void pkcs1_rsassa_v15_verify( int mod, int radix_N, char * input_N,
     mbedtls_rsa_init( &ctx );
     TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
                                           MBEDTLS_RSA_PKCS_V15, hash ) == 0 );
-    memset( hash_result, 0x00, sizeof( hash_result ) );
 
     TEST_ASSERT( mbedtls_test_read_mpi( &N, radix_N, input_N ) == 0 );
     TEST_ASSERT( mbedtls_test_read_mpi( &E, radix_E, input_E ) == 0 );
@@ -346,11 +337,7 @@ void pkcs1_rsassa_v15_verify( int mod, int radix_N, char * input_N,
     TEST_ASSERT( mbedtls_rsa_get_len( &ctx ) == (size_t) ( ( mod + 7 ) / 8 ) );
     TEST_ASSERT( mbedtls_rsa_check_pubkey( &ctx ) == 0 );
 
-
-    if( md_info != NULL )
-        TEST_ASSERT( mbedtls_md( md_info, message_str->x, message_str->len, hash_result ) == 0 );
-
-    TEST_ASSERT( mbedtls_rsa_pkcs1_verify( &ctx, digest, mbedtls_md_get_size( md_info ), hash_result, result_str->x ) == result );
+    TEST_ASSERT( mbedtls_rsa_pkcs1_verify( &ctx, digest, message_str->len, message_str->x, result_str->x ) == result );
 
 exit:
     mbedtls_mpi_free( &N ); mbedtls_mpi_free( &E );