Add comprehensive test cases for TLS1.3 server side

Change-Id: I544cb12b3ffe5edd7d59fa54342ca7db5b5c8a2a
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index c144b05..4251817 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -2382,6 +2382,22 @@
             {
                 sig_alg_list[i++] = MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512;
             }
+            else if( strcmp( q, "rsa_pss_rsae_sha256" ) == 0 )
+            {
+                sig_alg_list[i++] = MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256;
+            }
+            else if( strcmp( q, "rsa_pss_rsae_sha384" ) == 0 )
+            {
+                sig_alg_list[i++] = MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384;
+            }
+            else if( strcmp( q, "rsa_pss_rsae_sha512" ) == 0 )
+            {
+                sig_alg_list[i++] = MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512;
+            }
+            else if( strcmp( q, "rsa_pkcs1_sha256" ) == 0 )
+            {
+                sig_alg_list[i++] = MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256;
+            }
             else
             {
                 mbedtls_printf( "unknown signature algorithm %s\n", q );
@@ -2389,6 +2405,10 @@
                 mbedtls_printf( "ecdsa_secp256r1_sha256 " );
                 mbedtls_printf( "ecdsa_secp384r1_sha384 " );
                 mbedtls_printf( "ecdsa_secp521r1_sha512 " );
+                mbedtls_printf( "rsa_pss_rsae_sha256 " );
+                mbedtls_printf( "rsa_pss_rsae_sha384 " );
+                mbedtls_printf( "rsa_pss_rsae_sha512 " );
+                mbedtls_printf( "rsa_pkcs1_sha256 " );
                 mbedtls_printf( "\n" );
                 goto exit;
             }