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This is a snippet I use for applying a one way hash utilizing the SHA1CryptoServiceProvider class in .Net. I use Encoding.Unicode.GetBytes() so it will be compatible with systems already using the CAPICOM version. The CAPICOM views all input as UNICODE not text
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Submitted By: PsychoCoder
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Rating:
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Views: 547 |
Language: C#
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Last Modified: May 12, 2008 |
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Instructions: Need a reference to the System.Security.Cryptography and System.Web.Security Namespaces |
Snippet
//Namespace Reference using System.Security.Cryptography; using System.Web.Security; /// <summary> /// method to hash the users password. To match the CAPICOM hash /// we convert the string to UNICODE first /// </summary> /// <returns></returns> public string HashString(string str) { //create our SHA1 provider SHA1 sha = new SHA1CryptoServiceProvider (); string hashedValue = string.Empty; //hash the data byte[] hashedData = sha.ComputeHash(Encoding.Unicode.GetBytes(str)); //loop through each byte in the byte array foreach (byte b in hashedData) { //convert each byte and append hashedValue += String.Format("{0,2:X2}", b); } //return the hashed value return hashedValue; }
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