openssl enc -help
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Encoding with Ciphers.
$ openssl enc -help Usage: enc [options] Valid options are: -help Display this summary -ciphers List ciphers -in infile Input file -out outfile Output file -pass val Passphrase source -e Encrypt -d Decrypt -p Print the iv/key -P Print the iv/key and exit -v Verbose output -nopad Disable standard block padding -salt Use salt in the KDF (default) -nosalt Do not use salt in the KDF -debug Print debug info -a Base64 encode/decode, depending on encryption flag -base64 Same as option -a -A Used with -[base64|a] to specify base64 buffer as a single line -bufsize val Buffer size -k val Passphrase -kfile infile Read passphrase from file -K val Raw key, in hex -S val Salt, in hex -iv val IV in hex -md val Use specified digest to create a key from the passphrase -iter +int Specify the iteration count and force use of PBKDF2 -pbkdf2 Use password-based key derivation function 2 -none Don't encrypt -* Any supported cipher -rand val Load the file(s) into the random number generator -writerand outfile Write random data to the specified file -z Use zlib as the 'encryption' -engine val Use engine, possibly a hardware device
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