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Id
4131093
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AcceptedAnswerId
0
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0
ClosedDate
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0
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CreationDate
2010-11-09T06:37:05.553
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0
LastActivityDate
2010-11-18T04:44:31.290
LastEditDate
2010-11-18T04:44:31.290
LastEditorUserId
464251
OwnerUserId
464251
ParentId
4130783
PostTypeId
2
Score
3
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0
LastEditorDisplayName
text
Body
<p>Not sure why yours isn't working, but when I wrote the SHA512 implementation below I had some issues with the hash. It doesn't output like you would normally see it displayed for humans. For this reason your data type should be binary in the database. Also here is the implementation I use (with the salt changed) that uses SHA512. Using ByteArrayToHexString puts it in a human recognizable format. Then you can use a varchar in the database.</p> <pre><code> /// <summary> /// Takes a string as input, SHA512 hashes it, and returns the hexadecimal representation of the hash as a string. /// </summary> /// <param name="toHash">string to be hashed</param> /// <returns>hexadecimal representation of the hash as a string</returns> private string GetHash(string toHash) { /* As of this writing, both the –Cng and –CryptoServiceProvider implementation classes are FIPS-certified, * but –Managed classes are not. http://msdn.microsoft.com/en-us/magazine/ee321570.aspx */ // Salt the string toHash = "%my" + toHash.Insert(Convert.ToInt16(toHash.Length / 2), "!secret") + ".sauce#"; SHA512CryptoServiceProvider hasher = new SHA512CryptoServiceProvider(); byte[] hashBytes = hasher.ComputeHash(Encoding.Unicode.GetBytes(toHash)); hasher.Clear(); return ByteArrayToHexString(hashBytes); } /// <summary> /// Takes a byte[] and converts it to its string hexadecimal representation /// </summary> /// <param name="ba">Array of bytes[] to convert</param> /// <returns>string, hexadecimal representation of input byte[]</returns> private string ByteArrayToHexString(byte[] ba) { StringBuilder hex = new StringBuilder(ba.Length * 2); foreach (byte b in ba) hex.AppendFormat("{0:x2}", b); return hex.ToString(); } </code></pre>
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1. POMD5 password checking always return false?
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1. POMD5 password checking always return false?
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