Byte to String

[shapper]

Hello,

I am using the following to hash a string:

public static string Hash(string text) {
MD5CryptoServic eProvider crypto = new
MD5CryptoServic eProvider();
byte[] hash = null;
UTF8Encoding encoder = new UTF8Encoding();
hash = crypto.ComputeH ash(encoder.Get Bytes(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]

Re: Byte to String

Hi Miguel,

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

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

2) return BitConverter.To String(hash).Re place("-", ""); // e.g. A1F3BB...

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

http://stoyanoff.info

"shapper" <mdmoura@gmail. comwrote in message
news:03d81397-a924-4993-96a3-26fe92a65b30@e1 g2000pra.google groups.com...

Hello,
>
I am using the following to hash a string:
>
public static string Hash(string text) {
MD5CryptoServic eProvider crypto = new
MD5CryptoServic eProvider();
byte[] hash = null;
UTF8Encoding encoder = new UTF8Encoding();
hash = crypto.ComputeH ash(encoder.Get Bytes(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]

Re: Byte to String

On Nov 7, 12:37 am, "Stanimir Stoyanov" <stoya...@REMOV ETHIS.live.com>
wrote:

Hi Miguel,
>
byte[] is an array and ToString() will just return the type name. Here are a
few examples:
>
1) return BitConverter.To String(hash); // e.g. A1-F3-BB...
>
2) return BitConverter.To String(hash).Re place("-", ""); // e.g. A1F3BB...
>
3) string hashString = string.Empty;
    Array.ForEach(h ash, delegate(byte b) { hashString +=
b.ToString("X2" ); });
    return hashString; // same as 2)
--
Stanimir Stoyanovhttp://stoyanoff.info
>
"shapper" <mdmo...@gmail. comwrote in message
>
news:03d81397-a924-4993-96a3-26fe92a65b30@e1 g2000pra.google groups.com...
>

Hello,

>

I am using the following to hash a string:

>

   public static string Hash(string text) {
     MD5CryptoServic eProvider crypto = new
MD5CryptoServic eProvider();
     byte[] hash = null;
     UTF8Encoding encoder = new UTF8Encoding();
     hash = crypto.ComputeH ash(encoder.Get Bytes(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?=]

Re: Byte to String

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.To String(hash); // e.g. A1-F3-BB...
>
2) return BitConverter.To String(hash).Re place("-", ""); // e.g. A1F3BB...
>
3) string hashString = string.Empty;
Array.ForEach(h ash, 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(h ash.Length * 2);
foreach (byte b in hash) builder.Append( b.ToString("x2" ));
return builder.ToStrin g();

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.ToBase6 4String(hash); // e.g. dh1e5gxs4hh3j.. .

--
Stanimir Stoyanov

http://stoyanoff.info

>

--
Göran Andersson
_____

http://www.guffa.com