com.sap.cloud.security.password

## Interface PasswordStorage

-     public interface PasswordStorage

  This interface provides the ability to store passwords in a central storage. Each password in the storage is identified by an alias. The alias is a string and may contain [a-zA-Z0-9], and "_" characters.

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `deletePassword(String alias)` Deletes the password assigned to the given alias.
    `char[]` | `getPassword(String alias)` Returns the password associated with the given alias.
    `void` | `setPassword(String alias, char[] password)` Stores the given password and assigns it to the given alias.

- - ### Method Detail

    - #### getPassword

          char[] getPassword(String alias)
                             throws PasswordStorageException

      Returns the password associated with the given alias. The password must have been associated with the alias by call to setPassword.
      Parameters:
        `alias` - the alias name. Alias may contain [a-zA-Z0-9], and "_" characters.
      Returns:
        the requested password, or `null` if the given alias does not exist or does not identify a password.
      Throws:
        `PasswordStorageException` - If there was an error while trying to get the password.
        `IllegalArgumentException` - If alias is `null` or alias passed to the method contains unsupported characters.

    - #### setPassword

          void setPassword(String alias,
                         char[] password)
                           throws PasswordStorageException

      Stores the given password and assigns it to the given alias. If there is already a password assigned to this alias, it will be replaced.
      Parameters:
        `alias` - the alias name. Alias may contain [a-zA-Z0-9], and "_" characters.
        `password` - the password to be stored assigned to the given alias. The password length should be not smaller than 6 characters and not bigger than 255 characters.
      Throws:
        `PasswordStorageException` - If there was an error while trying to set the password.
        `IllegalArgumentException` - If alias or password is `null`, if alias passed to the method contains unsupported characters, or if password is smaller than 6 characters or bigger than 255.

    - #### deletePassword

          void deletePassword(String alias)
                              throws PasswordStorageException

      Deletes the password assigned to the given alias. Does nothing if there is no password associated with this alias.
      Parameters:
        `alias` - the alias name. Alias may contain [a-zA-Z0-9], and "_" characters.
      Throws:
        `PasswordStorageException` - If there was an error while trying to delete the password.
        `IllegalArgumentException` - If alias is `null`.

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