🏛️OpenSSL

Commands

List Ciphers

openssl list -cipher-commands

Base64

echo "Hello World" > plain.txt

# Encoding
openssl enc -base64 -in plain.txt

# Saving the output
openssl enc -base64 -in plain.txt -out cipher.txt

# Decoding
openssl enc -base64 -d in cipher.txt

AES 128

# Encryption
openssl enc -aes-128-cbc -in plain.txt -out cipher
<Enter a password>

# Decryption
openssl enc -aes-128-cbc -d -in cipher -out cipher-dec.txt

RSA

# Generate RSA Keys
openssl genrsa -out keypair 2048

# Extract public key from the private key
openssl rsa -in keypair -pubout

# Get detailed information
openssl rsa -in keypair -text

Encrypted Linux Passwd

# You can add this encrypted password in /etc/passwd
openssl passwd Password123

# Generate Salted Password
openssl passwd -1 -salt User123 Password123