This is simple libraries that compute hash from a string. It is implemented in COM (32/64 bits) and C#.
The input string is converted into UTF-8, and then is hashed by a hash algorithm such as MD5, SHA2-256, etc. The hashed binary is encoded by Base64.
The following code is an example of using the string hasher in C#. The StringHasher class is implemented in the StringHasher.cs file.
/* * C# */ using Ryeol.Security.Cryptography; ... // Creates an instance. StringHasher hasher = new StringHasher(); // Sets the hash algorithm. // MD5, SHA1, SHA2-256, SHA2-384, SHA2-512 are supported. hasher.Algorithm = StringHasherAlgorithm.SHA2_256; // Hashs a string. string hashed = hasher.Compute("Test sample");
The following code shows how to use the string hasher in ASP(VBScript). Since ASP doesn't support built-in hash algorithm, you need to install the RyeolStringHasher.dll file which is a COM dll based on XySSL 0.8.
(You also need to install the Visual C++ Redistributable for Visual Studio 2012.)
' ' ASP (VBScript) ' ' Creates an instance. Set objHasher = Server.CreateObject("Ryeol.StringHasher") ' Sets the hash algorithm. ' MD2, MD4, MD5, SHA1, SHA2-224, SHA2-256, SHA2-384, SHA2-512 are supported. objHasher.Algorithm = "SHA2-256" ' Hashs a string. strHashed = objHasher.Compute("Test sample")
June 7, 2013
The C# StringHasher has changed to create a hash implementation by using the Create method to support Windows XP.
December 10, 2012