include: add sha256 hash API

Signed-off-by: Ajay Bhargav <[email protected]>

Author: ajaybhargav

include/crypto/sha.h

@@ -18,6 +18,15 @@ extern "C" {
  */
 void sha1(const unsigned char *input, int ilen, unsigned char output[20]);
 
+/**
+ * @brief Calculate sha256 hash
+ * 
+ * @param input [in] Input data buffer
+ * @param ilen [in] Input data length
+ * @param output [out] Output buffer to store hash
+ */
+void sha256(const unsigned char *input, int ilen, unsigned char output[32]);
+
 #ifdef __cplusplus
 }
 #endif