Byte to String

[shapper]

Hello,

I am using the following to hash a string:

public static string Hash(string text) {
MD5CryptoServiceProvider crypto = new
MD5CryptoServiceProvider();
byte[] hash = null;
UTF8Encoding encoder = new UTF8Encoding();
hash = crypto.ComputeHash(encoder.GetBytes(text));
return hash.ToString();
} // Hash

I debugged it but I still get a byte and I can't see the hashed
string ...

What am I missing?

Thanks,
Miguel

[Stanimir Stoyanov]

Hi Miguel,

byte[] is an array and ToString() will just return the type name. Here are a
few examples:

1) return BitConverter.ToString(hash); // e.g. A1-F3-BB...

2) return BitConverter.ToString(hash).Replace("-", ""); // e.g. A1F3BB...

3) string hashString = string.Empty;
Array.ForEach(hash, delegate(byte b) { hashString +=
b.ToString("X2"); });
return hashString; // same as 2)
--
Stanimir Stoyanov
http://stoyanoff.info

"shapper" <md*****@gmail.comwrote in message
news:03**********************************@e1g2000p ra.googlegroups.com...

Hello,

I am using the following to hash a string:

public static string Hash(string text) {
MD5CryptoServiceProvider crypto = new
MD5CryptoServiceProvider();
byte[] hash = null;
UTF8Encoding encoder = new UTF8Encoding();
hash = crypto.ComputeHash(encoder.GetBytes(text));
return hash.ToString();
} // Hash

I debugged it but I still get a byte and I can't see the hashed
string ...

What am I missing?

Thanks,
Miguel

[shapper]

On Nov 7, 12:37*am, "Stanimir Stoyanov" <[e-mail]>
wrote:

Hi Miguel,

byte[] is an array and ToString() will just return the type name. Here are a
few examples:

1) return BitConverter.ToString(hash); // e.g. A1-F3-BB...

2) return BitConverter.ToString(hash).Replace("-", ""); // e.g. A1F3BB...

3) string hashString = string.Empty;
* * Array.ForEach(hash, delegate(byte b) { hashString +=
b.ToString("X2"); });
* * return hashString; // same as 2)
--
Stanimir Stoyanovhttp://stoyanoff.info

"shapper" <[e-mail] in message

news:03**********************************@e1g2000p ra.googlegroups.com...

Hello,

I am using the following to hash a string:

* *public static string Hash(string text) {
* * *MD5CryptoServiceProvider crypto = new
MD5CryptoServiceProvider();
* * *byte[] hash = null;
* * *UTF8Encoding encoder = new UTF8Encoding();
* * *hash = crypto.ComputeHash(encoder.GetBytes(text));
* * *return hash.ToString();
* *} // Hash

I debugged it but I still get a byte and I can't see the hashed
string ...

What am I missing?

Thanks,
Miguel

Thank You! It worked fine.

[=?ISO-8859-1?Q?G=F6ran_Andersson?=]

Stanimir Stoyanov wrote:

Hi Miguel,

byte[] is an array and ToString() will just return the type name. Here
are a few examples:

1) return BitConverter.ToString(hash); // e.g. A1-F3-BB...

2) return BitConverter.ToString(hash).Replace("-", ""); // e.g. A1F3BB...

3) string hashString = string.Empty;
Array.ForEach(hash, delegate(byte b) { hashString +=
b.ToString("X2"); });
return hashString; // same as 2)

Don't use += to concatenate strings in a loop. Use a StringBuilder instead:

StringBuilder builder = new StringBuilder(hash.Length * 2);
foreach (byte b in hash) builder.Append(b.ToString("x2"));
return builder.ToString();

As the size of the final string is specified in the constructor, it will
allocate a string buffer of the correct size, which then is returned as
a string by the ToString method. (To make it ever more efficient, you
could format the hex string yourself and append one character at a time.
That way it wouldn't create any temporary strings at all.)

4) return Convert.ToBase64String(hash); // e.g. dh1e5gxs4hh3j...

--
Stanimir Stoyanov
http://stoyanoff.info

--
Göran Andersson
_____
http://www.guffa.com