* Fixes for building ECC without ASN.

* Fix to expose `wc_ecc_import_private_key_ex` and its ability to import a private key even when `NO_ASN` is defined.
* Remove execute bit on CSharp files.

wolfcrypt/src/ecc.c

@@ -7319,7 +7319,6 @@ int wc_ecc_export_private_raw(ecc_key* key, byte* qx, word32* qxLen,
 
 #endif /* HAVE_ECC_KEY_EXPORT */
 
-#ifndef NO_ASN
 #ifdef HAVE_ECC_KEY_IMPORT
 /* import private key, public part optional if (pub) passed as NULL */
 int wc_ecc_import_private_key_ex(const byte* priv, word32 privSz,
@@ -7327,7 +7326,6 @@ int wc_ecc_import_private_key_ex(const byte* priv, word32 privSz,
                                  int curve_id)
 {
     int ret;
-    word32 idx = 0;
 #if defined(WOLFSSL_CRYPTOCELL) && !defined(WOLFSSL_ATECC508A)
     const CRYS_ECPKI_Domain_t* pDomain;
     CRYS_ECPKI_BUILD_TempData_t tempBuff;
@@ -7337,10 +7335,15 @@ int wc_ecc_import_private_key_ex(const byte* priv, word32 privSz,
 
     /* public optional, NULL if only importing private */
     if (pub != NULL) {
+    #ifndef NO_ASN
+        word32 idx = 0;
         ret = wc_ecc_import_x963_ex(pub, pubSz, key, curve_id);
         if (ret < 0)
             ret = wc_EccPublicKeyDecode(pub, &idx, key, pubSz);
         key->type = ECC_PRIVATEKEY;
+    #else
+        ret = NOT_COMPILED_IN;
+    #endif
     }
     else {
         /* make sure required variables are reset */
@@ -7422,6 +7425,7 @@ int wc_ecc_import_private_key(const byte* priv, word32 privSz, const byte* pub,
 }
 #endif /* HAVE_ECC_KEY_IMPORT */
 
+#ifndef NO_ASN
 /**
    Convert ECC R,S to signature
    r       R component of signature

wolfcrypt/src/signature.c

@@ -252,7 +252,7 @@ int wc_SignatureVerify(
 {
     int ret;
     word32 hash_len, hash_enc_len;
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     byte *hash_data;
 #else
     byte hash_data[MAX_DER_DIGEST_SZ];
@@ -286,7 +286,7 @@ int wc_SignatureVerify(
     }
 #endif
 
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     /* Allocate temporary buffer for hash data */
     hash_data = (byte*)XMALLOC(hash_enc_len, NULL, DYNAMIC_TYPE_TMP_BUFFER);
     if (hash_data == NULL) {
@@ -328,7 +328,7 @@ int wc_SignatureVerify(
         }
     }
 
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     XFREE(hash_data, NULL, DYNAMIC_TYPE_TMP_BUFFER);
 #endif
 
@@ -462,7 +462,7 @@ int wc_SignatureGenerate_ex(
 {
     int ret;
     word32 hash_len, hash_enc_len;
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     byte *hash_data;
 #else
     byte hash_data[MAX_DER_DIGEST_SZ];
@@ -496,7 +496,7 @@ int wc_SignatureGenerate_ex(
     }
 #endif
 
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     /* Allocate temporary buffer for hash data */
     hash_data = (byte*)XMALLOC(hash_enc_len, NULL, DYNAMIC_TYPE_TMP_BUFFER);
     if (hash_data == NULL) {
@@ -549,7 +549,7 @@ int wc_SignatureGenerate_ex(
     }
 #endif /* WOLFSSL_CRYPTOCELL */
 
-#ifdef WOLFSSL_SMALL_STACK
+#if defined(WOLFSSL_SMALL_STACK) || defined(NO_ASN)
     XFREE(hash_data, NULL, DYNAMIC_TYPE_TMP_BUFFER);
 #endif
 

wolfcrypt/test/test.c

@@ -10293,12 +10293,14 @@ byte GetEntropy(ENTROPY_CMD cmd, byte* out)
         static const char* dsaKey = CERT_ROOT "dsa2048.der";
     #endif
 #endif /* !USE_CERT_BUFFER_* */
-#if !defined(USE_CERT_BUFFERS_256) && !defined(NO_ASN)
+#if !defined(USE_CERT_BUFFERS_256)
     #ifdef HAVE_ECC
         /* cert files to be used in rsa cert gen test, check if RSA enabled */
         #ifdef HAVE_ECC_KEY_IMPORT
             static const char* eccKeyDerFile = CERT_ROOT "ecc-key.der";
         #endif
+#endif
+#if !defined(USE_CERT_BUFFERS_256) && !defined(NO_ASN)
         #ifdef WOLFSSL_CERT_GEN
             #ifndef NO_RSA
                 /* eccKeyPubFile is used in a test that requires RSA. */