not be finalized by HmacSha256Final(). Behavior with invalid HMAC-SHA256 context is undefined.\r
\r
If HmacSha256Context is NULL, then return FALSE.\r
not be finalized by HmacSha256Final(). Behavior with invalid HMAC-SHA256 context is undefined.\r
\r
If HmacSha256Context is NULL, then return FALSE.\r