Added asynchronous wolfCrypt RSA, TLS client and Cavium Nitrox V support. Asynchronous wolfSSL client support for "DoServerKeyExchange", "SendClientKeyExchange", "SendCertificateVerify" and "DoCertificateVerify". Fixes for async DTLS. Refactor of the wolf event and async handling for use in wolfCrypt. Refactor of the async device support so its hardware agnostic. Added Cavium Nitrox V support (Nitrox tested using SDK v0.2 CNN55XX-SDK with new configure "--with-cavium-v=/dir" option). Moved Nitrox specific functions to new port file "port/cavium/cavium_nitrox.c". RSA refactor to handle async with states. RSA optimization for using dpraw for private key decode. Use double linked list in wolf event for faster/cleaner code. Use typedef for wolf event flag. Cleanup of the async error codes. wolfCrypt test and benchmark support for async RSA. Asynchronous mode enabled using "./configure --enable-asynccrypt". If no async hardware is defined then the internal async simulator (WOLFSSL_ASYNC_CRYPT_TEST) is used. Note: Using async mode requires async.c/h files from wolfSSL. If interested in using asynchronous mode please send email to info@wolfssl.com.

mcapi/crypto.c

@@ -223,6 +223,7 @@ int CRYPT_SHA512_Finalize(CRYPT_SHA512_CTX* sha512, unsigned char* digest)
 int CRYPT_HMAC_SetKey(CRYPT_HMAC_CTX* hmac, int type, const unsigned char* key,
                       unsigned int sz)
 {
+    /* compile-time check to verify CRYPT_HMAC_CTX is large enough to hold Hmac */
     typedef char hmac_test[sizeof(CRYPT_HMAC_CTX) >= sizeof(Hmac) ? 1 : -1];
     (void)sizeof(hmac_test);
 

mcapi/crypto.h

@@ -104,7 +104,7 @@ enum {
 
 /* HMAC */
 typedef struct CRYPT_HMAC_CTX {
-    long long holder[67];   /* big enough to hold internal, but check on init */
+    long long holder[68];   /* big enough to hold internal, but check on init */
 } CRYPT_HMAC_CTX;
 
 int CRYPT_HMAC_SetKey(CRYPT_HMAC_CTX*, int, const unsigned char*, unsigned int);