gnupg: Input and Output
5.2.3 Input and Output
----------------------
'--armor'
'-a'
Create PEM encoded output. Default is binary output.
'--base64'
Create Base-64 encoded output; i.e. PEM without the header lines.
'--assume-armor'
Assume the input data is PEM encoded. Default is to autodetect the
encoding but this is may fail.
'--assume-base64'
Assume the input data is plain base-64 encoded.
'--assume-binary'
Assume the input data is binary encoded.
'--p12-charset NAME'
'gpgsm' uses the UTF-8 encoding when encoding passphrases for
PKCS#12 files. This option may be used to force the passphrase to
be encoded in the specified encoding NAME. This is useful if the
application used to import the key uses a different encoding and
thus will not be able to import a file generated by 'gpgsm'.
Commonly used values for NAME are 'Latin1' and 'CP850'. Note that
'gpgsm' itself automagically imports any file with a passphrase
encoded to the most commonly used encodings.
'--default-key USER_ID'
Use USER_ID as the standard key for signing. This key is used if
no other key has been defined as a signing key. Note, that the
first '--local-users' option also sets this key if it has not yet
been set; however '--default-key' always overrides this.
'--local-user USER_ID'
'-u USER_ID'
Set the user(s) to be used for signing. The default is the first
secret key found in the database.
'--recipient NAME'
'-r'
Encrypt to the user id NAME. There are several ways a user id may
be given (⇒how-to-specify-a-user-id).
'--output FILE'
'-o FILE'
Write output to FILE. The default is to write it to stdout.
'--with-key-data'
Displays extra information with the '--list-keys' commands.
Especially a line tagged 'grp' is printed which tells you the
keygrip of a key. This string is for example used as the file name
of the secret key. Implies '--with-colons'.
'--with-validation'
When doing a key listing, do a full validation check for each key
and print the result. This is usually a slow operation because it
requires a CRL lookup and other operations.
When used along with '--import', a validation of the certificate to
import is done and only imported if it succeeds the test. Note
that this does not affect an already available certificate in the
DB. This option is therefore useful to simply verify a certificate.
'--with-md5-fingerprint'
For standard key listings, also print the MD5 fingerprint of the
certificate.
'--with-keygrip'
Include the keygrip in standard key listings. Note that the
keygrip is always listed in '--with-colons' mode.
'--with-secret'
Include info about the presence of a secret key in public key
listings done with '--with-colons'.