sha512

Hi I am trying to Encrypt a string to invoke a web service from VBA. I need to do the following function in VBA and i have example code in PHP. Here is the PHP code. Does anyone know how to do this in VBA? $binaryHash = hash_hmac('sha512', $url.$timestamp, $ws_session_array["sharedSecret"], true); $hash = base64_encode($binaryHash); Here's what you need: Public Function Base64_HMACSHA1(ByVal sTextToHash As String, ByVal sSharedSecretKey As String) Dim asc As Object, enc As Object Dim TextToHash() As Byte Dim SharedSecretKey() As Byte Set asc = CreateObject("System.Text.UTF8Encoding") Set enc =

Is the length of a string hashed with sha512 always the same? If so, what is it? As the name implies, it's 512 bits, that is 64 bytes. But that's the hash, maybe you're wondering about a specific representation of that hash in string, as is commonly used, then it depends of the given representation. If you write the hash in hexa, then it will be 128 characters. If you write the hash in base64, then it will be 86 bytes (or 88 with padding). 来源： https://stackoverflow.com/questions/18236106/what-is-the-length-of-a-hashed-string-with-sha512

I've been investigating a bit about Java String encryption techniques and unfortunately I haven't find any good tutorial how to hash String with SHA-512 in Java; I read a few blogs about MD5 and Base64, but they are not as secure as I'd like to (actually, Base64 is not an encryption technique), so I prefer SHA-512. A. Sinha you can use this for SHA-512 import java.nio.charset.StandardCharsets; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public String get_SHA_512_SecurePassword(String passwordToHash, String salt){ String generatedPassword = null; try {

using .NET and C# i need to provide an integrity string using HMAC SHA512 to a PHP server . Using in C# : Encoding encoding = Encoding.UTF8; byte[] keyByte = encoding.GetBytes(key); HMACSHA512 hmacsha512 = new HMACSHA512(keyByte); byte[] messageBytes = encoding.GetBytes(message); byte[] hashmessage = hmacsha512.ComputeHash(messageBytes); return(ByteToString(hashmessage).toUpper()); But it doesn't match with PHP hash_hmac() PHP code : $hmac = strtoupper(hash_hmac($pbx_hash, $msg, $binKey)); I try to change encoding in C# (utf8, ASCII,Unicode) Without success. I've tried many solution found on