evfsxfr.1 (2010 09)

evfsxfr(1) evfsxfr(1)

(EVFS Software Required)

NAME

evfsxfr - operate on an encrypted ﬁle as is without performing encryption or decryption

SYNOPSIS

evfsxfr cmd param ...

DESCRIPTION

In HP-UX EVFS ﬁle-level encryption mode, when a ﬁle is conﬁgured for encryption, the data content is

automatically transformed (encrypted or decrypted) during I/O transfer. The command

evfsxfr is used

to bypass this transformation. It is a wrapper command that is executed along with a regular HP-UX

command to transfer ﬁles as is with no transformation (i.e. no encryption/decryption). This command can

also be used to start certain applications which need access to encrypted data (for example,

backup/restore applications).

The

evfsxfr command can be executed by any user. However, the encrypted content of an encrypted

ﬁle can be accessed only the superuser or the owner of that ﬁle. Any children of the initiated command

will inherit this behavior.

An encrypted ﬁle can be opened in either

evfsxfr mode or non-evfsxfr mode, but not both simul-

taneously.

Options

evfsxfr recognizes the following parameters:

cmd The command to be executed by

evfsxfr.

param ... Parameter(s) or option(s) that are passed to the cmd command.

RETURN VALUE

The value of the HP-UX command executed by

evfsxfr will be returned.

EXAMPLES

The following command copies an encrypted ﬁle to a target ﬁle in a regular directory (i.e. not enabled for

encryption). The target ﬁle will contain un-recognizable encrypted data. Without being executed with

evfsxfr, cp would fail.

% evfsxfr cp /encrypted/efile1 /tmp/file1

The following command move a clear-text ﬁle to a target ﬁle in an encryption enabled directory. The tar-

get ﬁle is not encrypted. Without being executed with evfsxfr, mv would fail.

% evfsxfr mv /tmp/file1 /encrypted/file1

WARNINGS

File content cannot be recovered if the encryption ﬁle header is damaged with any evfsxfr

operations.

AUTHOR

evfsxfr was developed by Hewlett-Packard.

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evfsxfr(1) evfsxfr(1) (EVFS Software Required) NAME evfsxfr - operate on an encrypted file as is without performing encryption or decryption SYNOPSIS evfsxfr cmd param ... DESCRIPTION In HP-UX EVFS file-level encryption mode, when a file is configured for encryption, the data content is automatically transformed (encrypted or decrypted) during I/O transfer. The command evfsxfr is used to bypass this transformation.
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(Notes) A (Notes) eA 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010