commit d0e55a465779554d354343601161aa11f69353b6
author Gilles Peskine <Gilles.Peskine@arm.com> Mon Jun 04 12:03:30 2018 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Mon Jun 04 14:41:19 2018 +0200
tree cad1d25137b7cbb974f21b4443c65d9774ed70c0
parent 5c38984fa70bf4998bacea1251003d3dc61f915c

ssl_decrypt_buf: remove code for hashes that aren't used in TLS

library/ssl_tls.c

diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8e855a1..4d50497 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -2013,22 +2013,11 @@
             size_t j, extra_run = 0;
             switch( ssl->transform_in->ciphersuite_info->mac )
             {
-#if defined(MBEDTLS_MD2_C)
-                case MBEDTLS_MD_MD2:
-                    /* no size prepended, 64-byte compression blocks */
-                    extra_run = ( 13 + ssl->in_msglen + padlen ) / 64 -
-                                ( 13 + ssl->in_msglen          ) / 64;
-                    break;
-#endif
-#if defined(MBEDTLS_MD4_C) || defined(MBEDTLS_MD5_C) || \
-                case MBEDTLS_MD_MD4:
-    defined(MBEDTLS_SHA1_C) || defined(MBEDTLS_SHA256_C) \
-    defined(MBEDTLS_RIPEMD160_C)
+#if defined(MBEDTLS_MD5_C) || defined(MBEDTLS_SHA1_C) || \
+    defined(MBEDTLS_SHA256_C)
                 case MBEDTLS_MD_MD5:
                 case MBEDTLS_MD_SHA1:
-                case MBEDTLS_MD_SHA224:
                 case MBEDTLS_MD_SHA256:
-                case MBEDTLS_MD_RIPEMD160:
                     /* 8 bytes of message size, 64-byte compression blocks */
                     extra_run = ( 13 + ssl->in_msglen + padlen + 8 ) / 64 -
                                 ( 13 + ssl->in_msglen          + 8 ) / 64;
@@ -2036,7 +2025,6 @@
 #endif
 #if defined(MBEDTLS_SHA512_C)
                 case MBEDTLS_MD_SHA384:
-                case MBEDTLS_MD_SHA512:
                     /* 16 bytes of message size, 128-byte compression blocks */
                     extra_run = ( 13 + ssl->in_msglen + padlen + 16 ) / 128 -
                                 ( 13 + ssl->in_msglen          + 16 ) / 128;