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jchandra74/SHA1Util.cs

Forked from kristopherjohnson/SHA1Util.cs
Last active April 3, 2019 17:20
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Revisions

  1. jchandra74 revised this gist Jun 2, 2015. 1 changed file with 15 additions and 0 deletions.
    15 changes: 15 additions & 0 deletions SHA1Util.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -6,6 +6,21 @@ namespace Snippets
    {
    public static class SHA1Util
    {
    /// <summary>
    /// Compute hash for string encoded as UTF8
    /// </summary>
    /// <param name="s">String to be hashed</param>
    /// <returns>40-character hex string</returns>
    public static string SHA1HashStringForUTF8String(string s)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(s);

    var sha1 = SHA1.Create();
    byte[] hashBytes = sha1.ComputeHash(bytes);

    return HexStringFromBytes(hashBytes);
    }

    /// <summary>
    /// Compute hash for Unicode encoded string.
    /// This is the exact same Hash that the following SQL Server SHA1 Hash will produce...
  2. jchandra74 revised this gist Jun 2, 2015. 1 changed file with 11 additions and 6 deletions.
    17 changes: 11 additions & 6 deletions SHA1Util.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -1,3 +1,4 @@
    //Forked from kristopherjohnson/SHA1Util.cs gist
    using System.Security.Cryptography;
    using System.Text;

    @@ -6,18 +7,22 @@ namespace Snippets
    public static class SHA1Util
    {
    /// <summary>
    /// Compute hash for string encoded as UTF8
    /// Compute hash for Unicode encoded string.
    /// This is the exact same Hash that the following SQL Server SHA1 Hash will produce...
    /// SET @hash = HASHBYTES('SHA1', @dataJson);
    /// SET @hash64str = cast('' as xml).value('xs:hexBinary(sql:variable("@hash"))', 'varchar(max)');
    /// just in case you need to recreate the hash in C#
    /// </summary>
    /// <param name="s">String to be hashed</param>
    /// <returns>40-character hex string</returns>
    pubilc static string SHA1HashStringForUTF8String(string s)
    public static string SHA1HashStringForUnicodeString(string s)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(s);

    byte[] bytes = Encoding.Unicode.GetBytes(s);
    var sha1 = SHA1.Create();
    byte[] hashBytes = sha1.ComputeHash(bytes);

    return HexStringFromBytes(hashBytes);
    return HexStringFromBytes(hashBytes).ToUpperInvariant();
    }

    /// <summary>
    @@ -33,7 +38,7 @@ public static string HexStringFromBytes(byte[] bytes)
    var hex = b.ToString("x2");
    sb.Append(hex);
    }
    return sb.ToString();
    return sb.ToString();
    }
    }
    }
  3. @kristopherjohnson kristopherjohnson revised this gist Jun 29, 2012. 1 changed file with 12 additions and 2 deletions.
    14 changes: 12 additions & 2 deletions SHA1Util.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -5,16 +5,26 @@ namespace Snippets
    {
    public static class SHA1Util
    {
    pubilc static string SHA1HashStringForUTF8String(string stringToBeHashed)
    /// <summary>
    /// Compute hash for string encoded as UTF8
    /// </summary>
    /// <param name="s">String to be hashed</param>
    /// <returns>40-character hex string</returns>
    pubilc static string SHA1HashStringForUTF8String(string s)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(stringToBeHashed);
    byte[] bytes = Encoding.UTF8.GetBytes(s);

    var sha1 = SHA1.Create();
    byte[] hashBytes = sha1.ComputeHash(bytes);

    return HexStringFromBytes(hashBytes);
    }

    /// <summary>
    /// Convert an array of bytes to a string of hex digits
    /// </summary>
    /// <param name="bytes">array of bytes</param>
    /// <returns>String of hex digits</returns>
    public static string HexStringFromBytes(byte[] bytes)
    {
    var sb = new StringBuilder();
  4. @kristopherjohnson kristopherjohnson renamed this gist Jun 29, 2012. 1 changed file with 0 additions and 0 deletions.
    0 sha1util.cs → SHA1Util.cs
    View file
    File renamed without changes.
  5. @kristopherjohnson kristopherjohnson revised this gist Jun 29, 2012. 1 changed file with 9 additions and 0 deletions.
    9 changes: 9 additions & 0 deletions sha1util.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -1,3 +1,10 @@
    using System.Security.Cryptography;
    using System.Text;

    namespace Snippets
    {
    public static class SHA1Util
    {
    pubilc static string SHA1HashStringForUTF8String(string stringToBeHashed)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(stringToBeHashed);
    @@ -18,3 +25,5 @@ public static string HexStringFromBytes(byte[] bytes)
    }
    return sb.ToString();
    }
    }
    }
  6. @kristopherjohnson kristopherjohnson created this gist Jun 29, 2012.
    20 changes: 20 additions & 0 deletions sha1util.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,20 @@
    pubilc static string SHA1HashStringForUTF8String(string stringToBeHashed)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(stringToBeHashed);

    var sha1 = SHA1.Create();
    byte[] hashBytes = sha1.ComputeHash(bytes);

    return HexStringFromBytes(hashBytes);
    }

    public static string HexStringFromBytes(byte[] bytes)
    {
    var sb = new StringBuilder();
    foreach (byte b in bytes)
    {
    var hex = b.ToString("x2");
    sb.Append(hex);
    }
    return sb.ToString();
    }