Copyright Digital Equipment Corp. All rights reserved.
Qualifiers
/BACKUP
/BACKUP[=time]
Selects files according to the dates of their most recent backup.
This qualifier is relevant only when used with the /BEFORE or the
/SINCE qualifier. In addition, do not use /BACKUP with /EXPIRED
or /MODIFIED.
If you omit time, TODAY is used. For more information on time
specifications, see the OpenVMS User's Manual.
/BEFORE
/BEFORE[=time]
Selects files that have a creation time before the time you
specify.
If you omit time, TODAY is used. For more information on time
specifications, see the OpenVMS User's Manual.
/BY_OWNER
/BY_OWNER[=uic]
/NOBY_OWNER
Selects files with the owner UIC you specify.
If you omit uic, the UIC of the current process is used. For
more information on specifying UIC format, see the OpenVMS User's
Manual.
/COMPRESS
/COMPRESS
/NOCOMPRESS
Optional. Default: /NOCOMPRESS.
Controls whether or not data compression occurs before a file is
encrypted.
/CONFIRM
/CONFIRM
/NOCONFIRM
Controls whether or not a confirmation request is displayed
before each encryption, as follows:
Response Meaning
YES Encrypts the file
NO or <Return> Does not encrypt the file (default)
QUIT or Does not encrypt the file or any subsequent
<Ctrl/Z> files
ALL Encrypts the file plus all subsequent files
/DATA_ALGORITHM
{ DESCBC (default) }
/DATA_ALGORITHM= { AESmmmkkk }
{ }
Where mmm is the mode CBC, ECB, CFB, or OFB; and kkk is 128,
192, or 256 bits. Cipher Block Chaining (CBC) and Electronic Code
Book (ECB) are 16-byte block modes, meaning blocks are padded to
16 bytes if necessary during encryption. The padding is removed
during decryption. Cipher Feedback (CFB) and Output Feedback
(OFB) are 8-bit character stream mode emulation, useful in data
communications and where no padding is required.
Note that /DATA_ALGORITM=AES is a shortcut for specifying
AESCBC128.
The data algorithm is used with the randomly generated key to
perform encryption of the file's data. When specifying an AES
algorithm, specify both /KEY and /DATA=AESmmmkkk qualifiers and
use an AES created key.
/DELETE
/DELETE
/NODELETE
Controls whether or not the input files are deleted after the
encryption operation is complete and the output file is written
and closed. By default, the input file is not deleted.
/ERASE
/ERASE
/NOERASE
Controls whether or not the input files are erased with the data
security pattern before being deleted. By default, the location
in which the data was stored is not overwritten with the data
security pattern. The /ERASE qualifier must be used with /DELETE.
/EXCLUDE
/EXCLUDE=file-spec
/NOEXCLUDE
Excludes the specified files from the encryption operation. You
can use wildcard characters. You do not need to enter an entire
file specification. Any field that you omit defaults to the input
file specification.
Because directory files are never encrypted, you need not specify
them.
/EXPIRED
/EXPIRED[=time]
Selects files according to the dates on which they expire.
This qualifier is relevant only when used with the /BEFORE or the
/SINCE qualifier. In addition, do not use /EXPIRED with /BACKUP
or /MODIFIED.
If you omit time, TODAY is used. For more information on time
specifications, see the OpenVMS User's Manual.
/KEY_ALGORITHM
{ DESCBC (default) }
/KEY_ALGORITHM= { AESmmmkkk }
{ }
Where mmm is the mode CBC, ECB, CFB, or OFB; and kkk is 128,
192, or 256 bits. Note that /KEY_ALGORITHM=AES is a shortcut for
specifying AESCBC128.
The command uses this key algorithm with the key you supply
to encrypt the randomly generated data encryption key and the
initialization vector stored within the file.
When specifying an AES algorithm, specify both /KEY and /DATA
qualifiers and use an AES created key.
/MODIFIED
/MODIFIED[=time]
Selects files according to the dates on which they were last
modified.
This qualifier is relevant only when used with the /BEFORE or the
/SINCE qualifier. In addition, do not use /MODIFIED with /BACKUP
or /EXPIRED.
If you omit time, TODAY is used. For more information on time
specifications, see the OpenVMS User's Manual.
/OUTPUT
/OUTPUT=file-spec
Alternate output file name for the encryption operation. By
default, each input file encrypted is written to a separate
output file that is one version higher than the highest version
of the input file. When using the /OUTPUT qualifier, specify the
parts of the file specification different from the defaults. You
do not need to provide an entire file specification. Any field
that you omit defaults to the input file specification.
/SHOW
/SHOW=keyword-list
Controls whether or not the following information about the
encryption operation is displayed on SYS$COMMAND:
Keyword Meaning
FILES Displays input and output file names on
SYS$COMMAND
STATISTICS Displays the encryption stream statistics:
o Bytes processed
o Internal records processed
o CPU time consumed within the encryption
algorithm
/SINCE
/SINCE[=time]
Selects files that have a creation date before the time you
specify.
If you omit time, TODAY is used. For more information on time
specifications, see the OpenVMS User's Manual.
/STATISTICS
Similar to /SHOW, except that /STATISTICS lists both files and
statistics, whereas /SHOW can be customized to list only one or
the other.
/VERSION
Displays the version number of the Encryption for OpenVMS
software running on your system.