Hmac | Hmac OWIN authentication handler | Authentication library

by johnhidey C# Version: Current License: MIT

X-Ray Key Features Code Snippets(2)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | Hmac Summary

Hmac is a C# library typically used in Security, Authentication applications. Hmac has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Hmac OWIN authentication handler.

Support

Quality

Security

License

Reuse

Support

Hmac has a low active ecosystem.

It has 6 star(s) with 1 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Hmac is current.

Quality

Hmac has 0 bugs and 0 code smells.

Security

Hmac has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Hmac code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Hmac is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

Hmac releases are not available. You will need to build from source code and install.

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Hmac Key Features

No Key Features are available at this moment for Hmac.

Hmac Examples and Code Snippets

Hmac with the specified algorithm .

java

Lines of Code : 7

License : Permissive (MIT License)

Copy

public static String hmacWithJava(String algorithm, String data, String key)
        throws NoSuchAlgorithmException, InvalidKeyException {
        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(), algorithm);
        Mac mac = Mac.getI

Hashes the given data and returns the HMAC value .

java

Lines of Code : 4

License : Permissive (MIT License)

Copy

public static String hmacWithApacheCommons(String algorithm, String data, String key) {
        String hmac = new HmacUtils(algorithm, key).hmacHex(data);
        return hmac;
    }

Community Discussions

Trending Discussions on Hmac

How to Handle 26-Byte Secret for Time-based One Time Password?

Fixing git HTTPS Error: "bad key length" on macOS 12

How to encrypt large file using Python?

It's possible to rotate an object in gnuplot?

Why is my Twitter oAuth Request not Working? | Curl, Headers

Orderhive AWS4 Signature not match

Paramiko authentication fails with "Agreed upon 'rsa-sha2-512' pubkey algorithm" (and "unsupported public key algorithm: rsa-sha2-512" in sshd log)

Difference between secrets.compare_digest and hmac.compare_digest

Separate border for each slider

Why do my slider thumbnails select the wrong image?

QUESTION

How to Handle 26-Byte Secret for Time-based One Time Password?

Asked 2022-Apr-02 at 04:15

Secret of Time-based One Time Password are usually 16-byte base32 encoded string. e.g. GitHub 2FA.

But for some scenario, it has 26 bytes long. e.g. Tutanota OTP. Often in lower case with whitespaces, like: vev2 qjea un45 3sr4 q4h3 ais4 ci

I tried with the TOTP algorithm implemented in dgryski/dgoogauth and tilaklodha/google-authenticator. Both can handle 16-byte secret well, but got error for 26-byte secret.

e.g. for 16-byte secret VEV2QJEAUN453SR4:

...

ANSWER

Answered 2022-Apr-02 at 04:15

A base32 encodes every 5 bits of input bytes into base32 character, go base32 use The RFC 4648 Base 32 alphabet (A-Z, 2-7). When decode a string to bytes, each base32 character input will be mapped to a 5 bit index then recompose to bytes.

In your example "VEV2QJEAUN453SR4Q4H3AIS4CI", the previous "VEV2QJEAUN453SR4" was already valid input, it is a 16 char input, and 5 bit * 16 is 80 bit so it can be resolved into 10 bytes output. Now let us just look at the rest "Q4H3AIS4CI", 10 char -> 5 * 10 = 50 bits, the previous 40 bits can be decode to 5 bytes, but the last 2 char "CI" leads 2 bit remainder

Source https://stackoverflow.com/questions/70389299

QUESTION

Fixing git HTTPS Error: "bad key length" on macOS 12

Asked 2022-Mar-29 at 17:34

I am using a company-hosted (Bitbucket) git repository that is accessible via HTTPS. Accessing it (e.g. git fetch) worked using macOS 11 (Big Sur), but broke after an update to macOS 12 Monterey. *

After the update of macOS to 12 Monterey my previous git setup broke. Now I am getting the following error message:

...

ANSWER

Answered 2021-Nov-02 at 07:12

Unfortunately I can't provide you with a fix, but I've found a workaround for that exact same problem (company-hosted bitbucket resulting in exact same error). I also don't know exactly why the problem occurs, but my best guess would be that the libressl library shipped with Monterey has some sort of problem with specific (?TLSv1.3) certs. This guess is because the brew-installed openssl v1.1 and v3 don't throw that error when executed with /opt/homebrew/opt/openssl/bin/openssl s_client -connect ...:443

To get around that error, I've built git from source built against different openssl and curl implementations:

install autoconf, openssl and curl with brew (I think you can select the openssl lib you like, i.e. v1.1 or v3, I chose v3)
clone git version you like, i.e. git clone --branch v2.33.1 https://github.com/git/git.git
cd git
make configure (that is why autoconf is needed)
execute LDFLAGS="-L/opt/homebrew/opt/openssl@3/lib -L/opt/homebrew/opt/curl/lib" CPPFLAGS="-I/opt/homebrew/opt/openssl@3/include -I/opt/homebrew/opt/curl/include" ./configure --prefix=$HOME/git (here LDFLAGS and CPPFLAGS include the libs git will be built against, the right flags are emitted by brew on install success of curl and openssl; --prefix is the install directory of git, defaults to /usr/local but can be changed)
make install
ensure to add the install directory's subfolder /bin to the front of your $PATH to "override" the default git shipped by Monterey
restart terminal
check that git version shows the new version

This should help for now, but as I already said, this is only a workaround, hopefully Apple fixes their libressl fork ASAP.

Source https://stackoverflow.com/questions/69734654

QUESTION

How to encrypt large file using Python?

Asked 2022-Feb-24 at 07:44

I'm trying to encrypt file that is larger than 1GB. I don't want to read it all to memory. I chose Fernet (cryptography.fernet) for this task, because it was most recommended (faster than asymetric solutions).

I generated the key. Then I've created a script to encrypt:

...

ANSWER

Answered 2021-Nov-12 at 10:26

Fernet is not supposed to be used in a streaming fashion. They explain that in the documentation:

From the documentation (last section):

Limitations

Fernet is ideal for encrypting data that easily fits in memory. As a design feature it does not expose unauthenticated bytes. This means that the complete message contents must be available in memory, making Fernet generally unsuitable for very large files at this time.

Source https://stackoverflow.com/questions/69312922

QUESTION

It's possible to rotate an object in gnuplot?

Asked 2022-Feb-03 at 21:33

I'm using software that uses Gnuplot language to plot some data, but I've never used Gnuplot before.

So I was trying to place labels and rectangles in a way that created a nice and readable text, which wasn't bad (as you can see with the number 182 in the image below), but I wanted to learn how to rotate the rectangle and label so that they line up with the white line.

(I can't post images, but it's like that in this link Right now, it looks like:

)

I've already learned to rotate the label (as you can see the number 171), but apparently, it doesn't work the same way with the object.

...

ANSWER

Answered 2022-Feb-03 at 21:33

Check the following example and help labels. You can create a datablock and add your labels and plot them rotated and boxed together with your map.

Edit: ...forgot the semitransparent boxes. You need to play with the alpha channel, i.e. 0xAARRGGBB.

Code:

Source https://stackoverflow.com/questions/70976753

QUESTION

Why is my Twitter oAuth Request not Working? | Curl, Headers

Asked 2022-Jan-26 at 14:28

    $callbackUrl = urlencode(self::CALLBACK_URL);

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,"https://api.twitter.com/oauth/request_token");
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
        'oauth_callback' => $callbackUrl,
        'oauth_consumer_key' => self::TWITTER_API_KEY
    ]);
    $timestamp = date("U"); // UTC UNIX time
    $oauth_nonce = preg_replace( '/[\W]/', '', base64_encode($timestamp));
    $headers = [
        "Authorization: OAuth oauth_consumer_key=\"".self::TWITTER_API_KEY."\"",
        "oauth_nonce: \"$oauth_nonce\"",
        "oauth_signature: \"oauth_signature\"",
        "oauth_signature_method: \"HMAC-SHA1\"",
        "oauth_timestamp: \"$timestamp\"",
        "oauth_version: \"1.0\"",
    ];
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, true);
    curl_setopt($ch, CURLOPT_STDERR, $fp);
    curl_setopt($ch, CURLINFO_HEADER_OUT , true);
    $curlResult = curl_exec($ch);
    if (curl_errno($ch)) {
        echo 'Curl Request Error:' . curl_error($ch);
        throw new CHttpException(404,'ERROR');
    }
    curl_close ($ch);

...

ANSWER

Answered 2022-Jan-26 at 14:28

As per documentation, Authorization header should contains all the data. Your Authorization header contains only OAuth oauth_consumer_key.

Your actual header (bad format, because , for example, 'oauth' is an entry of the headers, but should be a property of Authorization - see below).

Source https://stackoverflow.com/questions/70863740

QUESTION

Orderhive AWS4 Signature not match

Asked 2022-Jan-13 at 20:22

I'm tring to connect to AWS4 Signature method for authentication. (https://orderhive.docs.apiary.io/#introduction/api-requirements/end-point)

My id_token and refresh_token retreive the access_key_id, secret_key, and session_token. But when I try to retreive some information like the warehouse, I receive each time:

"message":"The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.

The String-to-Sign should have been
'AWS4-HMAC-SHA256 20211217T160055Z 20211217/us-east-1/execute-api/aws4_request 8e3dbc663f97508406c4825b74a647765022ae021fa224754701722b7bcf2288'

And I am using this code like others have done before me in some example.

...

ANSWER

Answered 2022-Jan-13 at 20:22

Finally, I changed my Sign method by this:

Source https://stackoverflow.com/questions/70396883

QUESTION

Paramiko authentication fails with "Agreed upon 'rsa-sha2-512' pubkey algorithm" (and "unsupported public key algorithm: rsa-sha2-512" in sshd log)

Asked 2022-Jan-13 at 14:49

I have a Python 3 application running on CentOS Linux 7.7 executing SSH commands against remote hosts. It works properly but today I encountered an odd error executing a command against a "new" remote server (server based on RHEL 6.10):

encountered RSA key, expected OPENSSH key

Executing the same command from the system shell (using the same private key of course) works perfectly fine.

On the remote server I discovered in /var/log/secure that when SSH connection and commands are issued from the source server with Python (using Paramiko) sshd complains about unsupported public key algorithm:

userauth_pubkey: unsupported public key algorithm: rsa-sha2-512

Note that target servers with higher RHEL/CentOS like 7.x don't encounter the issue.

It seems like Paramiko picks/offers the wrong algorithm when negotiating with the remote server when on the contrary SSH shell performs the negotiation properly in the context of this "old" target server. How to get the Python program to work as expected?

Python code

...

ANSWER

Answered 2022-Jan-13 at 14:49

Imo, it's a bug in Paramiko. It does not handle correctly absence of server-sig-algs extension on the server side.

Try disabling rsa-sha2-* on Paramiko side altogether:

Source https://stackoverflow.com/questions/70565357

QUESTION

Difference between secrets.compare_digest and hmac.compare_digest

Asked 2021-Dec-22 at 08:48

There are two strings comparison functions to prevent timing attacks: secrets.compare_digest and hmac.compare_digest. But it's not clear from the documentation how i should choose between them. Are they the same? If so, why is there such duplication?

...

ANSWER

Answered 2021-Dec-22 at 08:48

Are they the same?

Yes, you might check that following way

Source https://stackoverflow.com/questions/70446137

QUESTION

Separate border for each slider

Asked 2021-Dec-15 at 18:12

On my page, I can have several identical sliders with different images, each has a preview image and the main image that changes. when you click on the preview image, it has a blue border. This is how it looks

...

ANSWER

Answered 2021-Dec-15 at 18:12

When you are removing the class .selected, you should find .img-to-select__item on parent element. So that it will have boundary instead of entire page.

So basically check $(this).parent().find('.img-to-select__item') to remove the selected class.

See the Snippet below:

Source https://stackoverflow.com/questions/70368331

QUESTION

Why do my slider thumbnails select the wrong image?

Asked 2021-Dec-15 at 17:19

I have a slider on the page that switches images. Everything almost works, the images switch, but when I click on the preview, the main image does not display the selected one, but the adjacent one. What could be the problem?

...

ANSWER

Answered 2021-Dec-15 at 17:19

I just updated your main image selector to simplify. The prevAll() function gets previous siblings, which is needlessly specific. We just want all elements inside the parent container.

Source https://stackoverflow.com/questions/70365514

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Hmac

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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