rc4 | c and java RC4 algorithm | Learning library
kandi X-RAY | rc4 Summary
kandi X-RAY | rc4 Summary
c and java RC4 algorithm.
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Top functions reviewed by kandi - BETA
- Main entry point .
- Calculate key value .
- Encrypt a 128 - bit short .
- Computes the mod
rc4 Key Features
rc4 Examples and Code Snippets
Community Discussions
Trending Discussions on rc4
QUESTION
I know there are some other questions (with answers) to this topic. But no of these was helpful for me.
I have a postfix server (postfix 3.4.14 on debian 10) with following configuration (only the interesting section):
...ANSWER
Answered 2021-Jun-15 at 08:30Here I'm wondering about the line [in s_client]
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
You're apparently using OpenSSL 1.0.2, where that's a basically useless relic. Back in the days when OpenSSL supported SSLv2 (mostly until 2010, although almost no one used it much after 2000), the ciphersuite values used for SSLv3 and up (including all TLS, but before 2014 OpenSSL didn't implement higher than TLS1.0) were structured differently than those used for SSLv2, so it was important to qualify the ciphersuite by the 'universe' it existed in. It has almost nothing to do with the protocol version actually used, which appears later in the session-param decode:
QUESTION
My SPNEGO configuration seems to not work and always prompts for a password in my tomcat8.
Installation/Configuration SPNEGO install guide
I added the library spnego-r9.jar to the "tomcat\lib"-folder. Added the .conf files as well. Here the krb5.conf:
...ANSWER
Answered 2021-Jun-10 at 09:13I checked the packages via wireshark and found the unkown pricipalname error. Thanks for the hint @Samson Scharfrichter
The correct spn registration is setspn.exe -A HTTP/ourserver01.example.com exampleUser without the project itself.
QUESTION
I want to customize my splash screen on Android 12 and I get the AAPT error:
...ANSWER
Answered 2021-May-19 at 13:36It seems that the documentation is wrong/outdated. The right attribute is:
QUESTION
We have configured a cluster on GKE and installed nginx-ingress. Using our ingress rule it works, but I can't make it work with HTTP/2. We set the data information on the ConfigMap but it will always fallback to http/1.1. This exact setup was running fine on DigitalOcean. Can anyone provide some guidance?
Thanks
Install Nginx-Ingress
...ANSWER
Answered 2021-May-15 at 18:11After further reproduction I've noticed that in the question there is a miss-match between the NGINX Ingress controllers
.
There are 2 similarly named Ingress
controllers:
- Github.com: NginxInc: Kubernetes Ingress - for this purpose let's name it: nginx-inc
- Github.com: Kubernetes: Ingress Nginx - for this purpose let's name it: nginx
This are 2 separate products where the differences are explained here:
Due to this Configmap
key:
use-http2: "true"
I've incorrectly assumed that we are talking about the nginx where in fact it was the nginx-inc (I've missed the link of $ helm repo add
). This field is specific to the nginx and will not work with the nginx-inc.
I've managed to find a way to enable the HTTP/2
support with the nginx-inc. Change:
- from:
use-http2: "true"
- to:
http2: "true"
More explanation can be found here:
Below part is more of a general approach to the support of HTTP/2
on GKE
with Ingress
.
A side note!
Even without the
tls
part in theYAML
manifest it's possible to useHTTPS
due to theFake Ingress Controller certificate
As pointed in the following github issue:
aledbf commented on 28 Mar 2019
NGINX does not support HTTP/1.x and HTTP/2 at the same time on a cleartext (non-TLS) port. That's the reason why it works only when HTTPS is used.
-- Github.com: Kubernetes: Ingress nginx: Issue: HTTP2 support
As stated to enable HTTP/2
you will need to have the tls part (certificate) configured in your Ingress
resource.
Here you can find the documentation to help you with the process:
I've used your setup on the GKE
version 1.20.5-gke.2000
(the Helm
part) and here is what I found.
Querying the external IP of your Ingress
controller with HTTP
request will allow you to use HTTP/1.1
.
After I've configured the certificate to use with the Ingress
resource (and domain name), I could get the response stating that I'm using HTTP/2
:
You can check it with various measures like cURL
or online HTTP/2
test sites:
curl -v -k https://DOMAIN.NAME
QUESTION
Previously I've reported it into kafkacat
tracker but the issue has been closed as related to cyrus-sasl
/krb5
.
ANSWER
Answered 2021-May-13 at 11:50Very strange issue, and honestly I can't say why, but adding into krb5.conf
:
QUESTION
First off, I understand that RC4 is not the safest encryption method and that it is outdated, this is just for a school project. Just thought I put it out there since people may ask.
I am working on using RC4 from OpenSSL to make a simple encryption and decryption program in C++. I noticed that the encryption and decryption is inconsistent. Here is what I have so far:
...ANSWER
Answered 2021-Apr-27 at 23:38actualKey
needs to be pointing to a buffer of appropriate size before you pass it to EVP_BytesToKey
. As it is you are passing in an uninitialised pointer which would explain your inconsistent results.
The documentation for EVP_BytesToKey
has this to say:
If
data
isNULL
, thenEVP_BytesToKey()
returns the number of bytes needed to store the derived key.
So you can call EVP_BytesToKey
once with the data
parameter set to NULL
to determine the length of actualKey
, then allocate a suitable buffer and call it again with actualKey
pointing to that buffer.
As others have noted, passing sizeof(keygen)
to EVP_BytesToKey
is also incorrect. You probably meant strlen (argv [2])
.
Likewise, passing sizeof(actualKey)
to RC4_set_key
is also an error. Instead, you should pass the value returned by EVP_BytesToKey
.
QUESTION
I created a laravel website on my localhost with the Beyondcode websockets. Everything worked fine untill I tried to upload my website to a live server. I have been searching the internet for solutions but couldn't find anything that works for me. The problem is that when the websocket tries to connect, it returns nothing. I think it has something to do with my NGINX config.
On my localhost the websocket works fine connecting over ws://127.0.0.1/... but on production neither ws:// nor wss:// works.
I got supervisor running the command php artisan websockets:serve
on a subdomain. It just doesn't connect.
My code:
config/broadcasting.php
ANSWER
Answered 2021-Mar-19 at 03:58subdomain
with nginx
Step 1.
create websocket conf file to run in background code will be like
in
/etc/supervisor/conf.d
(Debian/Ubuntu) or/etc/supervisord.d
(Red Hat/CentOS) create a filewebsockets.conf
then put this code
QUESTION
I have the following installation: Nginx + selfmade SLL cert + Wildfly running on the same host. On Wildfly I have Spring MVC app with context path /myapp with Spring Security. App is working perfectly when accessing it at http://192.168.13.13:8080/myapp (all pages, redirects, logins, etc.). So I want to access it through Nginx and root context path, i.e. http://192.168.13.13/. And at this moment I'm stuck. If I do not use SLL and proxying from / to / - it works. But I have to enter http://192.168.13.13/myapp to access http://192.168.13.13:8080/myapp. If I set proxy from / to /myapp - all Spring redirects are broke. If I enable SSL - I can't login to my app and Spring redirects also broke.
Could someone prompt for correct setup of my installation?
Current nginx config:
...ANSWER
Answered 2021-Apr-13 at 08:57Finally found the solution: in Wildfly I've configured virtual host and map it to my application. No other actions were required - now it's working as expected.
QUESTION
I have set up a HTTPS server (nodejs v14.16.0) and certificates from letsEncrypt (which work in the current version of the app that uses https.createServer). Unfortunately, curl cannot connect successfully to my HTTPS server. I get the following error
...ANSWER
Answered 2021-Apr-09 at 08:09Okay, it appears that even though the documentation for tls.createSecureContext
says the result is "usable as an argument to several tls APIs, such as tls.createServer" it actually isn't. It is accepted by server.addContext
(for a virtual host or more exactly an SNI-value handler) tls.connect
(for client) tls.createSecurePair
(deprecated) and new TLSSocket
(low-level), but createServer
only takes the same options as createSecureContext
not an actual SecureContext
. Since you didn't supply the needed key&cert in a usable form, and OpenSSL by default disables anonymous ciphersuites (which most clients don't offer anyway), all handshakes fail with no_shared_cipher. Try:
QUESTION
I'm trying to test my Paypal integration from localhost
using Paypal Sandbox, but whenever I try to get an access token from Paypal, I get back the following error:
ANSWER
Answered 2021-Apr-07 at 09:42Decoding the base64 in the verbose log, the client ID passed is ATPdiyM1jyzPfGq1oEClgdmnPMwT4P3MrdBu0dFYVF-dMV95_OqV6Ujmg5NqD-0GfOOR7SVbjv2md3Aw
This does not work when testing at https://developer.paypal.com/demo/checkout/#/pattern/client , so it is not a valid ID.
( Link showing the error, "client-id not recognized for either production or sandbox" )
Create a new REST app, https://www.paypal.com/signin?intent=developer&returnUri=https%3A%2F%2Fdeveloper.paypal.com%2Fdeveloper%2Fapplications
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install rc4
You can use rc4 like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the rc4 component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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