- Openssl Generate Public Key From Modulus And Exponent 1
- Openssl Generate Public Key From Modulus And Exponent Number
- Openssl Generate Public Key From Modulus And Exponent Equation
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While Encrypting a File with a Password from the Command Line using OpenSSL is very useful in its own right, the real power of the OpenSSL library is its ability to support the use of public key cryptograph for encrypting or validating data in an unattended manner (where the password is not required to encrypt) is done with public keys. The -noout option allows to avoid the display of the key in base 64 format. Numbers in hexadecimal format can be seen (except the public exponent by default is always 65537 for 1024 bit keys): the modulus, the public exponent, the private, the two primes that compose the modules and three other numbers that are use to optimize the algorithm.
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Comments
commented Nov 9, 2015
Hi Jonathon, Thank for your routine,It save my a lot of time. |
commented Nov 16, 2015
I'm not sure what you're asking, exactly.
While 'generate' isn't the right word here, this is exactly what this program does: convert a 'raw' binary modulus into a typical key format.
This, along with the title of your issue is copy & pasted directly out of the description for this project:
What exactly are you trying to do? https://intensivelogos.weebly.com/generate-key-from-crt-online.html. If you're trying to generate an RSA keypair, there are many resources that tell you how to do this with OpenSSL: |
commented Dec 15, 2015
![Key Key](/uploads/1/2/6/0/126072111/349799296.png)
![Openssl Generate Public Key From Modulus And Exponent Openssl Generate Public Key From Modulus And Exponent](/uploads/1/2/6/0/126072111/989598550.png)
And now you've deleted the rest of the text. Sigh. |
closed this Dec 15, 2015
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Verify downloaded file
RSA Public Key pad and encrypt
Read ciphertext as Hex chars
Decrypt with RSA Private Key, from binary ciphertext
Decrypt with DES
Convert from ciphertext from hex to ciphertext
Base64 operations
Key Pairs
Convert private key file to PEM file
Print EC private key & extract public key
Read EC public key
Print RSA private key & extract public key
Print the entire certificate
Certificates
Downloaded the leaf certificate from Stackoverflow.com.
Print the entire certificate
Create own cert from Private key
Use own private key to generate a self-signed certificate with it. This command creates a self-signed certificate (domain.crt) from an existing private key (domain.key):
Extract Public Key from Cert as PEM file
Print public key only
Strip the Generic Header and Footer
Extract Public Key from Cert in Hex format
Nginx Self-Signed Cert
Openssl Generate Public Key From Modulus And Exponent 1
Nginx needed the
Leaf's Private Key
the Leaf's Certificate
or a certificate chain
.Whichever choice, I always found PEM files worked better with OpenSSL.
If you hit
Expecting: TRUSTED CERTIFICATE error
, check you actually chained the Certificates
and NOT the Public Keys
.Apply the new
Leaf Private Key
and Certificate Chain
:Openssl Generate Public Key From Modulus And Exponent Number
https://intensivelogos.weebly.com/gpg-command-line-generate-key.html. This all worked fine with
Firefox
and Safari
on macOS. But Chrome
gave: Error: 'Subject Alternative Name Missing'
. Despite having a trusted
Cert Chain (Root CA
, Int CA
), Chrome stopped the page loading.To re-generate the files required by
Nginx
, I used the same Root CA
, Int CA
and focused on a new leaf
that had a Subject Alternative Name
. I used Keychain
. See the picture below.