Need to convert PHP Code to C# [Resolved]

Posted by Ganesh961991 under C# on 9/12/2013 | Points: 10 | Views : 33247 | Status : [Member] | Replies : 5

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Hi All

$signature = rawurlencode(
base64_encode(
hash_hmac("sha1", $concatenatedString, $privateKey, true)
)
);

This is my PHP code i need to convert this part to c#. Anybody suggest me. Is there any online conversion tool available Or any equivalent c# code is also is much appreciable

Regards
Ganesh

Ganesh

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Posted by: Bandi on: 9/13/2013 [Member] [MVP] Platinum | Points: 50

0	1) rawurlencode equivalent in the C# is HttpUtility.UrlEncodeUnicode( string str) 2) base64_encode() equivalent is as follows: string str = "Hello"; byte[] encodedbytes = System.Text.ASCIIEncoding.ASCII.GetBytes(str); string encoded = System.Convert.ToBase64String(encodedbytes); reference: http://onlinebase64decoder.com/functions.php For Encoding and decoding of url: UTF-7 is very unlikely to be what you want. You really need to know what encoding PHP is using. It may be using the default encoding for your system. Fortunately it's a lot easier to decode than you're making it: public static string base64Decode(string data) { byte[] binary = Convert.FromBaseString(data); return Encoding.Default.GetString(binary); }There's no need to explicitly mess around with Encoder :) Another possibility is that PHP is using ISO Latin 1, which is code page 28591: public static string base64Decode(string data) { byte[] binary = Convert.FromBaseString(data); return Encoding.GetEncoding(28591).GetString(binary); }The PHP manual unhelpfully just says: "Before PHP 6, a character is the same as a byte. That is, there are exactly 256 different characters possible." Shame it doesn't say what each byte actually means... 3) for hash_hmac() equivalent in C# refer the following link http://stackoverflow.com/questions/14109381/what-is-the-equivalent-this-code-in-c-sharp http://www.slavasoft.com/quickhash/samples/vb_sample_hmac_sha1_string.htm Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Ganesh961991, if this helps please login to Mark As Answer. \| Alert Moderator

1) rawurlencode equivalent in the C# is

HttpUtility.UrlEncodeUnicode( string str)

2) base64_encode() equivalent is as follows:

string str = "Hello";

 byte[] encodedbytes = System.Text.ASCIIEncoding.ASCII.GetBytes(str);

string encoded = System.Convert.ToBase64String(encodedbytes);

reference: http://onlinebase64decoder.com/functions.php
For Encoding and decoding of url:

UTF-7 is very unlikely to be what you want. You really need to know what encoding PHP is using. It may be using the default encoding for your system. Fortunately it's a lot easier to decode than you're making it:



public static string base64Decode(string data)

{

    byte[] binary = Convert.FromBaseString(data);

    return Encoding.Default.GetString(binary);

}There's no need to explicitly mess around with Encoder :)



Another possibility is that PHP is using ISO Latin 1, which is code page 28591:



public static string base64Decode(string data)

{

    byte[] binary = Convert.FromBaseString(data);

    return Encoding.GetEncoding(28591).GetString(binary);

}The PHP manual unhelpfully just says: "Before PHP 6, a character is the same as a byte. That is, there are exactly 256 different characters possible." Shame it doesn't say what each byte actually means...

3) for hash_hmac() equivalent in C# refer the following link
http://stackoverflow.com/questions/14109381/what-is-the-equivalent-this-code-in-c-sharp
http://www.slavasoft.com/quickhash/samples/vb_sample_hmac_sha1_string.htm

Mark This Response as Answer
--
Chandu
http://www.dotnetfunda.com/images/dnfmvp.gif

Ganesh961991, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Bandi on: 9/13/2013 [Member] [MVP] Platinum | Points: 50

0	Hi Ganesh, You are welcome.. Post the solution which you tweeted from the above link... It will help others.. Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Ganesh961991, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Ganesh961991 on: 9/13/2013 [Member] Starter | Points: 25

0	Hi Chandu , http://stackoverflow.com/questions/14109381/what-is-the-equivalent-this-code-in-c-sharp from the above link is i have got the code and its working fine. Thanks Regards Ganesh Ganesh Ganesh961991, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Ganesh961991 on: 9/13/2013 [Member] Starter | Points: 25

0	Here is the solution string sign = CreateToken(your contenateString, your PrivateKey); private string CreateToken(string message, string secret) { secret = secret ?? ""; var encoding = new System.Text.ASCIIEncoding(); byte[] keyByte = encoding.GetBytes(secret); byte[] messageBytes = encoding.GetBytes(message); using (var hmacsha1= new HMACSHA1(keyByte,true)) { byte[] hashmessage = hmacsha1.ComputeHash(messageBytes); return Convert.ToBase64String(hashmessage); } } That's it. MARK IT AS ANSWER Ganesh Ganesh961991, if this helps please login to Mark As Answer. \| Alert Moderator

Here is the solution

string sign = CreateToken(your contenateString, your PrivateKey);

private string CreateToken(string message, string secret)

    {

        secret = secret ?? "";

        var encoding = new System.Text.ASCIIEncoding();

        byte[] keyByte = encoding.GetBytes(secret);

        byte[] messageBytes = encoding.GetBytes(message);

        using (var hmacsha1= new HMACSHA1(keyByte,true))

           

        {

            byte[] hashmessage = hmacsha1.ComputeHash(messageBytes);

            return Convert.ToBase64String(hashmessage);

        }

    }

That's it. MARK IT AS ANSWER

Ganesh

Ganesh961991, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Tomblos on: 8/29/2015 [Member] Starter | Points: 25

0	I found different code examples on how to convert to base64 here. http://imagetobase64.com/code-examples Also you can convert images to base64 online. Ganesh961991, if this helps please login to Mark As Answer. \| Alert Moderator

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