Merge remote-tracking branch 'upstream-public/pr/866' into development
Conflict resolution: additions in the same places as
upstream-public/pr/865, both adding into lexicographically sorted
lists, resolved by taking the additions in lexicographic order.
diff --git a/ChangeLog b/ChangeLog
index 708555e..6377e7f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -71,6 +71,8 @@
* Extend cert_write example program by options to set the CRT version
and the message digest. Further, allow enabling/disabling of authority
identifier, subject identifier and basic constraints extensions.
+ * Add hardware acceleration support for cmac, with the configuration definition
+ of `MBEDTLS_CMAC_ALT`. Submitted by stevew817
= mbed TLS 2.6.0 branch released 2017-08-10
diff --git a/include/mbedtls/cmac.h b/include/mbedtls/cmac.h
index 9a2b96b..4d3f2d2 100644
--- a/include/mbedtls/cmac.h
+++ b/include/mbedtls/cmac.h
@@ -39,6 +39,8 @@
#define MBEDTLS_CIPHER_BLKSIZE_MAX 8 /* longest used by CMAC is 3DES */
#endif
+#if !defined(MBEDTLS_CMAC_ALT)
+
/**
* CMAC context structure - Contains internal state information only
*/
@@ -154,6 +156,18 @@
unsigned char output[16] );
#endif /* MBEDTLS_AES_C */
+#ifdef __cplusplus
+}
+#endif
+
+#else /* !MBEDTLS_CMAC_ALT */
+#include "cmac_alt.h"
+#endif /* !MBEDTLS_CMAC_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
#if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
/**
* \brief Checkup routine
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 29014b8..f590ef6 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -267,6 +267,7 @@
//#define MBEDTLS_BLOWFISH_ALT
//#define MBEDTLS_CAMELLIA_ALT
//#define MBEDTLS_CCM_ALT
+//#define MBEDTLS_CMAC_ALT
//#define MBEDTLS_DES_ALT
//#define MBEDTLS_XTEA_ALT
//#define MBEDTLS_MD2_ALT
diff --git a/library/cmac.c b/library/cmac.c
index 6df56aa..9dbff90 100644
--- a/library/cmac.c
+++ b/library/cmac.c
@@ -65,6 +65,8 @@
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PLATFORM_C */
+#if !defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST)
+
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n ) {
volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
@@ -164,7 +166,9 @@
return( ret );
}
+#endif /* !defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST) */
+#if !defined(MBEDTLS_CMAC_ALT)
static void cmac_xor_block( unsigned char *output, const unsigned char *input1,
const unsigned char *input2,
const size_t block_size )
@@ -468,6 +472,8 @@
}
#endif /* MBEDTLS_AES_C */
+#endif /* !MBEDTLS_CMAC_ALT */
+
#if defined(MBEDTLS_SELF_TEST)
/*
* CMAC test data for SP800-38B
diff --git a/library/version_features.c b/library/version_features.c
index e56a52f..3cea51a 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -99,6 +99,9 @@
#if defined(MBEDTLS_CCM_ALT)
"MBEDTLS_CCM_ALT",
#endif /* MBEDTLS_CCM_ALT */
+#if defined(MBEDTLS_CMAC_ALT)
+ "MBEDTLS_CMAC_ALT",
+#endif /* MBEDTLS_CMAC_ALT */
#if defined(MBEDTLS_DES_ALT)
"MBEDTLS_DES_ALT",
#endif /* MBEDTLS_DES_ALT */