OpenSSL

Links

Encrypt a File

• openssl aes-256-cbc -a -salt -in daten.txt -out secrets.enc

Decrypt the File

• openssl aes-256-cbc -d -a -in secrets.enc -out output.txt

Password Generator

• openssl rand -base64 18

Check Certificate

• openssl s_client -connect example.com:443
• with SNI
  • openssl s_client -servername example.com -connect example.com:443

check files

- ```bash
  openssl req -text -noout -verify -in CSR.csr
  openssl rsa -in privateKey.key -check
  openssl x509 -in certificate.crt -text -noout
  ```