OpenSSL Step By Step Tutorial | How to Generate Keys, Certificates & CSR Using OpenSSL
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- Опубликовано: 20 июл 2020
- OpenSSL step by step tutorial explaining how to generate key pair, how to export public key using openssl commands, how to create CSR using openSSL and how to generate self signed certificate using Open SSL command line tool.
To dowload openSSL visit: www.openssl.org/
To learn how to use Java Key Tool to generate self signed certificates: • How to Generate Key St...
To learn how to use Portecle to generate self signed certificates: • Generate Self Signed C...
To learn difference between one-way and two-way SSL: • How One Way and Two Wa...
I needed someone to explain it like this for so long. Thank you man.
Excellent demonstration sir. Thank you for making this clear to me.
wow everything worked so flawlessly, you're a hero
Very well demonstrated key-pair generation, extracting public key, CSR and self-signed certificate. Great work!
Short video, simple to understand. WOW!!! Thank you
Lot's of CSR videos but this one was perfect! Thank you!
Good job done. Very clearly explained and everything was right to the point and it held my attention. Everyone should do their training videos like this.
Thanks a lot!!! Exactly what I was looking for
Clear explanation to the point. Thanks buddy. Keep uploading more videos like this.
Just created my first key, ever. Now going to implement this....
Great video ... I was confused before watching this, now I understand much better. Thanks.
Thanks a lot bro..I was looking for a simple but explanatory tutorial on how certificates work..this video helped me to understand a lot
JazakAllah Abdul Rauf. Glad that It helped.
Thank you very much, very clear and to the point!
this is just perfect, simple, effective !
wow thank you explained so clearly
superb knowledge ... my friend .. keep sharing it..
Thanks a lot for the precise, and informative video.
Awesome explanation. Thank you!
good video, very nicely explained. thanks
Good explanation in detail. I have one query in terms of renewal. To renew the existing CA signed certificate, is it correct to give old CSR (CSR generated to get CA signed initially). Is there any validity for key pair and CSR generated?
Thank you bro!!
you are save my life!!
Awesome. This is what I needed this morning.
Nice explanation ! Thank you !
Thanks Jimmy. Glad that it was helpful.
Great Tutorial, Thanks
thank you very much, it was very useful
great tutorial, thank you!
Thanks for your feedback Enrique.
Worked for me, best video on openssl
very helpful. thank you
Great video.. all commands worked for me...thanks...one query how to add critical extensions using your commands?
excellent video. thank you.
It cleared all my doubts..nicely explained..thanks for the amazing video..!
Very nice job.
Please add info on how to create "non-self-signed certificates". Meaning certificate verifying some other public key. Thanks
Hi sir,
I want to configure certificate based authentication, it requirement
1.CA,
2.User Certificate,
3.server certificate.
What should I do, whether is same with you do?
Good job! Thank you!
Good job mate :) PK/ISB at last someone from PK
So happy to see that. Subbed him.
really great way of teaching thanks.
Thanks for your feedback Vivek.
Thanks a lot .Love from India
Thanks, Its really helpful.
You are welcome Ruchi.
If I want to create SSL certificates on cluster having 4-5 nodes, can we have same crt copied to all hosts?
how to creat command "CLS" clear screen in this toolkit , or same equivalent???????????????????????
Great presentation - thanks
Thanks for your kind feedback Mark.
Thankyou. Video was very clear
How should I verify that same csr for the crt that was created
Thanks for the clear explanation
Very useful - clear and consise. Thanks for sharing.
JazakAllah. Thanks
Excellent video Sir. Thank you; it is greatly appreciated.
Great job!
Thanks! You helped a lot
Good job clearly explained
Can you also make a video on certificate chaining / Intermediate CAS
In this case can we generate public keys and match with public keys being used by differenrt companies?
Good explanation , keep it up
Very nice video. Thank you very much. How to create certificate with encryption and does the server also should have a certificate with encrypted key? And also can we use Portecle to generate certificates with encrypted key for linux?
It's very helpful~!
Glad to hear that it helped.
Very informative 😊👏
Thanks for the great tutorials. How I securely push these key (private & cer) in jks file ?
Awesome explanation bro !!!
Nice video in detail. I have one question in terms of renewal. To renew the existing CA signed certificate, is it correct to give old CSR (CSR generated to get CA signed initially). Is there any validity for key pair and CSR generated?
Great video, but you now have weird files on your computer. What do you do with these weird files. Do I ftp to my server, control panel, do I need to go to ican or other ssl org to upload them?
Thank you!
Well done for this nice video
Thank you So Much Sir
Thank you very much. Was thinking I will never get it with this csr.
Good job friend!!
Thanks David.
thanks for your help bro
You are welcome Roberto.
What is the command to connect for godaddy signed ssl
thanks bro, you are the best
wow..
It helped me a lot
Sir how to create https complete chain certificate ?
Can you tell me how we can extract the private key from the key pair, as well as the public key?
Thank you sir
thank you bhai
info given in this video was insufficient to running localhost with https using openssl certificate. It ended with net::cert_common_name_invalid error in chrome on windows and also with hhtps strickedout in url with no green lock in browser address bar. I appreciate further help to fix the error...
how can we stop the stdin for step 3 like country name etc, and provide through argparser ?
Thank you
Awesome 😍
awsome!!!!!!
why not use pgpg tools?
how do i install it?
Job saving info for me.
Thanks.
Thanks ..
Hisir.
How do one vedio on how to create csr repo
Thanks - I had all this confused. You helped a lot. Now how do I get this into Windows 10?
Thanks Dave for your feedback. You can download windows version of openssl and use it in your machine. I myself created this tutorial in Windows 10.
I also had a problem with installing it on windows but then I found this tutorial helpful
ruclips.net/video/YNKUpNpM0Q0/видео.html&ab_channel=TechDeepDiveTechDeepDive
Hello when i use command for create csr file. This file is not shown when type dir command
it is not created. Why this issue happened ?
How to solve the invalid digest for sha1 error while creating csr
how can i remove or rekove the same certificate ??
Command to create self signed certificate with csr and private key is not working shows x509: Use -help for summary. any idea?
I am getting Can't open -testauto.key for reading, No such file or directory error any idea ?? followed the same steps
same error bro
@@ashishsulakhe3894 same here
Great Video, Very clearly explained about CA, CSR.
I have a question:
When we are opening the //https connection using self signed CA certificate getting some warnings on //https web page. May I know the reason?
Kindly, respond.
Thanks
Dear Ankur,
Thanks for the kind feedback.
In case of a self-signed certificate, we get SSL warning because chain of trust is not identified by the browser. Browser trusts only CA signed certificates (unless you explicitly add your certificate in the trust store).
I will recommend you to watch my other video where I explained SSL chain of trust in much detail.
I Like it.
Can I deploy certificate on godaddy domain?
CAn you create an video about self signing code signing certificate
how to put it in P2S azure
Cant opn ssl for reading no such file or directory!?
The only thing that worked for me in this situation was the self-created openssl.cnf file.
Here are the basics needed for this exercise (edit as needed):
#
# OpenSSL configuration file.
#
# Establish working directory.
#C:\Users\User\Desktop\test
dir = .
[ ca ]
default_ca = CA_default
[ CA_default ]
serial = $dir/serial
database = $dir/certindex.txt
new_certs_dir = $dir/certs
certificate = $dir/cacert.pem
private_key = $dir/private/cakey.pem
default_days = 365
default_md = md5
preserve = no
email_in_dn = no
nameopt = default_ca
certopt = default_ca
policy = policy_match
[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ req ]
default_bits = 1024 # Size of keys
default_keyfile = key.pem # name of generated keys
default_md = md5 # message digest algorithm
string_mask = nombstr # permitted characters
distinguished_name = req_distinguished_name
req_extensions = v3_req
[ req_distinguished_name ]
# Variable name Prompt string
#------------------------- ----------------------------------
0.organizationName = Organization Name (company)
organizationalUnitName = Organizational Unit Name (department, division)
emailAddress = Email Address
emailAddress_max = 40
localityName = Locality Name (city, district)
stateOrProvinceName = State or Province Name (full name)
countryName = Country Name (2 letter code)
countryName_min = 2
countryName_max = 2
commonName = Common Name (hostname, IP, or your name)
commonName_max = 64
# Default values for the above, for consistency and less typing.
# Variable name Value
#------------------------ ------------------------------
0.organizationName_default = My Company
localityName_default = My Town
stateOrProvinceName_default = State or Providence
countryName_default = US
[ v3_ca ]
basicConstraints = CA:TRUE
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid:always,issuer:always
[ v3_req ]
basicConstraints = CA:FALSE
subjectKeyIdentifier = hash
# copy till here
now save this file and run the command as
openssl req -new -key tutorialspedia.key -out tutorialspedia.csr -config openssl.cnf
hope this will work for you :)
6:00 Why did you pass the initial key file? .. shouldnt we pass the public key file?
executing openssl command to generate key pair using "openssl genrsa -out keyfile.key 2048" but facing an error "genrsa: Can't open "keyfile.key" for writing, Permission denied". Could you guide me hot to fix this
Run the cmd as an administrator
i am getting an error saying warning can't open config file: C:/OpenSSL/openssl.cnf please do help
Hello,
I created a ssl certificate but i dont want to put a specific CN name, rather just a * wildcard because in the server side hostname will keep changing periodically so i dont want to generate certificate everytime. Whatever the hostname it be the client can connect . Is there a way around ??
Dear Jai,
You can use *.host.com and this way your certificate will be valid for that domain and any subdomains but having only * without even a mention of a host at all doesn't make sense for any real production environment.
@@TutorialsPediaVideos thank you for your quick response. Appreciate it.
Hello Again,
I dont know if you have time for this but i have a situation and trying to find a solution for it since some days but no positive result yet. I will be very grateful if any insights can be provided by you.
I have a server with serverCertificates and a client with its own certificate. I am potraying as a CA. I am working with RPi. When i set CN in the serverCertificate as 'raspberrypi' and in the client hostname as 'raspberrypi' for sending https.request, I get desired result all looks perfect. Problem is instead of CN i want to use 'subjectAltName' in my certificate so that i can also nominate an IP as my [alt_names]. I created the certificate with alt_names getting help from some website but when i send client request to the server from a remote machine connected to the same network i get an error stating hostname is invalid. Below is the error :
Error [ERR_TLS_CERT_ALTNAME_INVALID]: Hostname/IP does not match certificate's altnames: IP: 10.10.10.10 is not in the cert's list:
at Object.checkServerIdentity (tls.js:287:12)
at TLSSocket.onConnectSecure (_tls_wrap.js:1511:27)
at TLSSocket.emit (events.js:315:20)
at TLSSocket._finishInit (_tls_wrap.js:936:8)
at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:710:12) {
reason: "IP: 10.10.10.10 is not in the cert's list: ",
host: '10.10.10.10',
If you want the config i used for creating certificate i can also share that. Just let me know.
Any help from you ??
super