Open Iv Encryption_key.bin

[Jessia Adachi]

Thekey for transparent data encryption (the data key) is normally generated by initdb and stored in a file pg_encryption/key.bin under the data directory. This file actually contains several keys that are used for different purposes at run time. However, in terms of the data key, it contains a single sequence of random bytes.

Without any further action, this file contains the key in plaintext, which isn't secure. Anyone with access to the encrypted data directory has access to the plaintext key, which defeats the purpose of encryption. Therefore, this setup is suitable only for testing purposes.

If you don't want key wrapping, for example for testing, then you must set the wrap and unwrap commands to the special value -. This setting specifies to use the key from the file without further processing. This approach differs from not setting a wrap or unwrap command at all, and from setting either/both to an empty string. Having no wrap or unwrap command set when transparent data encryption is used results in a fatal error when running an affected utility program.

Postgres leaves this configuration up to the user, which allows tailoring the setup to local requirements and integrating with existing key management software or similar. To configure the data key protection, you must specify a pair of external commands that take care of the wrapping (encrypting) and unwrapping (decryption).

This example wraps the randomly generated data key (done internally by initdb) by encrypting it with the AES-128-CBC (AESKW) algorithm. The encryption uses a key derived from a passphrase with the PBKDF2 key derivation function and a randomly generated salt. The terminal prompts for the passphrase. (See the openssl-enc manual page for details about these options. Available options vary across versions.) The initdb utility replaces %p with the name of the file that stores the wrapped key.

The unwrap command performs the opposite operation. initdb doesn't need the unwrap operation. However, it stores it in the postgresql.conf file of the initialized cluster, which uses it when it starts up.

The key wrap command receives the plaintext key on standard input and needs to put the wrapped key at the file system location specified by the %p placeholder. The key unwrap command needs to read the wrapped key from the file system location specified by the %p placeholder and write the unwrapped key to the standard output.

Utility programs like pg_rewind and pg_upgrade operate directly on the data directory or copies, such as backups. These programs also need to be told about the key unwrap command, depending on the circumstances. They each have command-line options for this purpose.

To simplify operations, you can also set the key wrap and unwrap commands in environment variables. These are accepted by all affected applications if you don't provide the corresponding command line options. For example:

Key unwrap commands that prompt for passwords on the terminal don't work when the server is started by pg_ctl or through service managers such as systemd. The server is detached from the terminal in those environments. If you want an interactive password prompt on server start, you need a more elaborate configuration that fetches the password using some indirect mechanism.

Shell commands with pipes, as in this example, are problematic because the exit status of the pipe is that of the last command. A failure of the first, more interesting command isn't reported properly. Postgres handles this somewhat by recognizing whether the wrap or unwrap command wrote nothing. However, it's better to make this more robust. For example, use the pipefail option available in some shells or the mispipe command available on some operating systems. Put more complicated commands into an external shell script or other program instead of defining them inline.

To change the master key, manually run the unwrap command specifying the old key. Then feed the result into the wrap command specifying the new key. Equivalently, if the data key is protected by a passphrase, to change the passphrase, run the unwrap command using the old passphrase. Then feed the result into the wrap command using the new passphrase. You can perform these operations while the database server is running. The wrapped data key in the file is used only on startup. It isn't used while the server is running.

You can't change the data key (the key wrapped by the master key) on an existing data directory. If you need to do that, you need to run the data directory through an upgrade process using pg_dump, pg_upgrade, or logical replication.

I have the following problem: when I try to use the sfdx force:auth:web:login command, nothing happens. When i do it with sudo, a salesforce site opens and I put in my login & password, the site then says that 'we can't connect to the server localhost'. Meanwhile in the terminal i get the following error

i tried googling it but with not much success. I'm using Manjaro Linux with KDE Plasma. I tried it on a freshly installed system (same) on a different machine, and got the same errors. I tried on a freshly installed system (Manjaro XFCE) on a different machine and it works.

In my case the issue is that Salesforce is bundling an old version of xdg-open, which calls executables that no longer exist on GNOME > 3.30. I am pretty certain that this also applies to KDE. You can try this workaround proposed by one of the users:

In some cases, a keystore depends on an auto-login TDE wallet before the operation can succeed. Auto-login TDE wallets open automatically when they are configured and a key is requested. They are generally used for operations where the TDE wallet could be closed but a database operation needs a key (for example, after the database is restarted). Because the auto-login TDE wallet opens automatically, it can be retrieved to perform a database operation without manual intervention. However, some keystore operations that require the keystore password cannot be performed when the auto-login keystore is open. The auto-login TDE wallet must be closed and the password-protected keystore must be opened for the keystore operations that require a password.

You can temporarily open the TDE wallet by including the FORCE KEYSTORE clause in the ADMINISTER KEY MANAGEMENT statement when you perform the following operations: rotating a TDE wallet password; creating, using, rekeying, tagging, importing, exporting, migrating, or reverse migrating encryption keys; opening or backing up TDE wallet; adding, updating, or deleting secret TDE wallets. In a multitenant environment, if no TDE wallet is open in the root, then FORCE KEYSTORE opens the password-protected TDE wallet in the root.

You can change this password at any time, as per the security policies, compliance guidelines, and other security requirements of your site. As part of the command to change the password, you will be forced to specify the WITH BACKUP clause, and thus forced to make a backup of the current keystore. During the password change operation, Transparent Data Encryption operations such as encryption and decryption will continue to work normally.

backup_identifier specifies an optional identifier string for the backup that is created. The backup_identifier is added to the name of the backup file. Enclose backup_identifier in single quotation marks (' '). This identifier is appended to the named keystore file (for example, ewallet_time_stamp_emp_key_pwd_change.p12).

This feature implements separation of duties between database administrators and key administrators. It is also useful for situations in which you use automated tools to perform Transparent Data Encryption operations that require a password, when the scripts that run the automated tools include hard-coded password. To avoid hard-coding the password in a script, you can store this password in an external store on the database server. In a multitenant environment, different PDBs can make use of the external store.

You must use the EXTERNAL STORE clause in the ADMINISTER KEY MANAGEMENT statement for the following operations: opening, closing, backing up the keystore; adding, updating, or deleting a secret keystore; creating, using, rekeying, tagging, importing, exporting encryption keys.

A backup of the TDE wallet contains all of the keys contained in the original TDE wallet. Oracle Database prefixes the backup TDE wallet with the creation time stamp (UTC). If you provide an identifier string, then this string is inserted between the time stamp and TDE wallet name.

You cannot back up auto-login or local auto-login TDE wallets. No new keys can be added to them directly through the ADMINISTER KEY MANAGEMENT statement operations. The information in these TDE wallets is only read and hence there is no need for a backup.

When you create the backup identifier (user_defined_string), use the operating system file naming convention. For example, in UNIX systems, you may want to ensure that this setting does not have spaces.

The following example shows the creation of a backup TDE wallet that uses a user-identified string, and how the resultant TDE wallet appears in the file system. This example includes the FORCE KEYSTORE clause in the event the auto-login TDE wallet is in use or the TDE wallet is closed.

USING backup_identifier is an optional string that you can provide to identify the backup. Enclose this identifier in single quotation marks (' '). This identifier is appended to the named keystore file (for example, ewallet_time-stamp_emp_key_backup.p12).

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