Added flag to indicate if hash is copied.

wolfcrypt/src/md5.c

@@ -37,6 +37,7 @@
 #include <wolfssl/wolfcrypt/md5.h>
 #include <wolfssl/wolfcrypt/error-crypt.h>
 #include <wolfssl/wolfcrypt/logging.h>
+#include <wolfssl/wolfcrypt/hash.h>
 
 #ifdef NO_INLINE
     #include <wolfssl/wolfcrypt/misc.h>
@@ -50,7 +51,7 @@
 #if defined(STM32_HASH)
 
     /* Supports CubeMX HAL or Standard Peripheral Library */
-	#define HAVE_MD5_CUST_API
+    #define HAVE_MD5_CUST_API
 
     int wc_InitMd5_ex(wc_Md5* md5, void* heap, int devId)
     {
@@ -436,6 +437,9 @@ int wc_Md5Copy(wc_Md5* src, wc_Md5* dst)
 #ifdef WOLFSSL_PIC32MZ_HASH
     ret = wc_Pic32HashCopy(&src->cache, &dst->cache);
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
 
     return ret;
 }

wolfcrypt/src/sha.c

@@ -42,6 +42,7 @@
 
 #include <wolfssl/wolfcrypt/sha.h>
 #include <wolfssl/wolfcrypt/error-crypt.h>
+#include <wolfssl/wolfcrypt/hash.h>
 
 #ifdef WOLF_CRYPTO_CB
     #include <wolfssl/wolfcrypt/cryptocb.h>
@@ -713,6 +714,10 @@ int wc_ShaCopy(wc_Sha* src, wc_Sha* dst)
      dst->ctx.isfirstblock = src->ctx.isfirstblock;
      dst->ctx.sha_type = src->ctx.sha_type;
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
+
     return ret;
 }
 #endif /* !WOLFSSL_TI_HASH */

wolfcrypt/src/sha256.c

@@ -44,6 +44,7 @@
 #include <wolfssl/wolfcrypt/sha256.h>
 #include <wolfssl/wolfcrypt/error-crypt.h>
 #include <wolfssl/wolfcrypt/cpuid.h>
+#include <wolfssl/wolfcrypt/hash.h>
 
 #ifdef WOLF_CRYPTO_CB
     #include <wolfssl/wolfcrypt/cryptocb.h>
@@ -1297,6 +1298,9 @@ void wc_Sha256Free(wc_Sha256* sha256)
     #ifdef WOLFSSL_ASYNC_CRYPT
         ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
     #endif
+    #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+        dst->flags |= WC_HASH_FLAG_ISCOPY;
+    #endif
 
         return ret;
     }
@@ -1381,6 +1385,9 @@ int wc_Sha256Copy(wc_Sha256* src, wc_Sha256* dst)
      dst->ctx.isfirstblock = src->ctx.isfirstblock;
      dst->ctx.sha_type = src->ctx.sha_type;
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
 
     return ret;
 }

wolfcrypt/src/sha3.c

@@ -43,6 +43,7 @@
 
 #include <wolfssl/wolfcrypt/sha3.h>
 #include <wolfssl/wolfcrypt/error-crypt.h>
+#include <wolfssl/wolfcrypt/hash.h>
 
 #ifdef NO_INLINE
     #include <wolfssl/wolfcrypt/misc.h>
@@ -793,6 +794,9 @@ static int wc_Sha3Copy(wc_Sha3* src, wc_Sha3* dst)
 #ifdef WOLFSSL_ASYNC_CRYPT
     ret = wolfAsync_DevCopy(&src->asyncDev, &dst->asyncDev);
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
 
     return ret;
 }

wolfcrypt/src/sha512.c

@@ -43,6 +43,7 @@
 #include <wolfssl/wolfcrypt/sha512.h>
 #include <wolfssl/wolfcrypt/error-crypt.h>
 #include <wolfssl/wolfcrypt/cpuid.h>
+#include <wolfssl/wolfcrypt/hash.h>
 
 /* deprecated USE_SLOW_SHA2 (replaced with USE_SLOW_SHA512) */
 #if defined(USE_SLOW_SHA2) && !defined(USE_SLOW_SHA512)
@@ -1110,6 +1111,10 @@ int wc_Sha512Copy(wc_Sha512* src, wc_Sha512* dst)
     dst->ctx.isfirstblock = src->ctx.isfirstblock;
     dst->ctx.sha_type = src->ctx.sha_type;
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
+
     return ret;
 }
 
@@ -1182,6 +1187,10 @@ int wc_Sha384Copy(wc_Sha384* src, wc_Sha384* dst)
     dst->ctx.isfirstblock = src->ctx.isfirstblock;
     dst->ctx.sha_type = src->ctx.sha_type;
 #endif
+#if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB)
+     dst->flags |= WC_HASH_FLAG_ISCOPY;
+#endif
+
     return ret;
 }
 

wolfssl/wolfcrypt/hash.h

@@ -79,6 +79,7 @@ enum wc_MACAlgorithm {
 enum wc_HashFlags {
     WC_HASH_FLAG_NONE =     0x00000000,
     WC_HASH_FLAG_WILLCOPY = 0x00000001, /* flag to indicate hash will be copied */
+    WC_HASH_FLAG_ISCOPY =   0x00000002, /* hash is copy */
 };