epa: Cryptographic operations on regions

 
 3.2 Cryptographic operations on regions
 =======================================
 
  -- Command: epa-decrypt-region start end
      Decrypt the current region between START and END.  It replaces the
      region with the decrypted text.
 
  -- Command: epa-decrypt-armor-in-region start end
      Decrypt OpenPGP armors in the current region between START and END.
      The difference from ‘epa-decrypt-region’ is that
      ‘epa-decrypt-armor-in-region’ searches armors in the region and
      applies ‘epa-decrypt-region’ to each of them.  That is, this
      command does not alter the original text around armors.
 
  -- Command: epa-verify-region start end
      Verify the current region between START and END.  It sends the
      verification result to the minibuffer or a popup window.  It
      replaces the region with the signed text.
 
  -- Command: epa-verify-cleartext-in-region
      Verify OpenPGP cleartext blocks in the current region between START
      and END.  The difference from ‘epa-verify-region’ is that
      ‘epa-verify-cleartext-in-region’ searches OpenPGP cleartext blocks
      in the region and applies ‘epa-verify-region’ to each of them.
      That is, this command does not alter the original text around
      OpenPGP cleartext blocks.
 
  -- Command: epa-sign-region start end signers type
      Sign the current region between START and END.  By default, it
      creates a cleartext signature.  If a prefix argument is given, it
      will let you select signing keys, and then a signature type.
 
  -- Command: epa-encrypt-region start end recipients sign signers
      Encrypt the current region between START and END.  It will let you
      select recipients.  If a prefix argument is given, it will also ask
      you whether or not to sign the text before encryption and if you
      answered yes, it will let you select the signing keys.