Encrypt a string using openssl command line

Question

I have a 16 byte character that I would like to encrypt using openssl into a 16 byte encrypted string.

This encrypted string ( in human readable format ) then nee

Answer 1

try this

$ echo "a_byte_character" | openssl enc -base64

and you have 100+ Cipher Types

-aes-128-cbc               -aes-128-cfb               -aes-128-cfb1             
-aes-128-cfb8              -aes-128-ctr               -aes-128-ecb              
-aes-128-gcm               -aes-128-ofb               -aes-128-xts              
-aes-192-cbc               -aes-192-cfb               -aes-192-cfb1             
-aes-192-cfb8              -aes-192-ctr               -aes-192-ecb              
-aes-192-gcm               -aes-192-ofb               -aes-256-cbc              
-aes-256-cfb               -aes-256-cfb1              -aes-256-cfb8             
-aes-256-ctr               -aes-256-ecb               -aes-256-gcm              
-aes-256-ofb               -aes-256-xts               -aes128                   
-aes192                    -aes256                    -bf                       
-bf-cbc                    -bf-cfb                    -bf-ecb                   
-bf-ofb                    -blowfish                  -camellia-128-cbc         
-camellia-128-cfb          -camellia-128-cfb1         -camellia-128-cfb8        
-camellia-128-ecb          -camellia-128-ofb          -camellia-192-cbc         
-camellia-192-cfb          -camellia-192-cfb1         -camellia-192-cfb8        
-camellia-192-ecb          -camellia-192-ofb          -camellia-256-cbc         
-camellia-256-cfb          -camellia-256-cfb1         -camellia-256-cfb8        
-camellia-256-ecb          -camellia-256-ofb          -camellia128              
-camellia192               -camellia256               -cast                     
-cast-cbc                  -cast5-cbc                 -cast5-cfb                
-cast5-ecb                 -cast5-ofb                 -des                      
-des-cbc                   -des-cfb                   -des-cfb1                 
-des-cfb8                  -des-ecb                   -des-ede                  
-des-ede-cbc               -des-ede-cfb               -des-ede-ofb              
-des-ede3                  -des-ede3-cbc              -des-ede3-cfb             
-des-ede3-cfb1             -des-ede3-cfb8             -des-ede3-ofb             
-des-ofb                   -des3                      -desx                     
-desx-cbc                  -id-aes128-GCM             -id-aes192-GCM            
-id-aes256-GCM             -rc2                       -rc2-40-cbc               
-rc2-64-cbc                -rc2-cbc                   -rc2-cfb                  
-rc2-ecb                   -rc2-ofb                   -rc4                      
-rc4-40                    -rc4-hmac-md5              -seed                     
-seed-cbc                  -seed-cfb                  -seed-ecb                 
-seed-ofb