DEFAULTS

Synopsis

HELP:   Defaults to define compression and protection
TYPE:   OBJECT
SYNTAX: DEFAULTS(MAXREC=num,MINSIZ=num,CMPLEVEL=COPY/FAST/DYNAMIC/COMPACT/ARITHMETIC,CRYCONF=CLEAR/VEIL/ENC,INTPROT=NONE/CHKS/AUTH/MAC,POTPAR(),SERASE[=AUTO/NO/YES],FRCUPD)

Description

Default values can be set for many values that would otherwise need to be specified for every single table/row, column or pot. The defaults set here can be overridden by specifying other values for the respective table/row, columns or pot parameters.

If special segment parameters (flag, length, data or attributes) are set, these have a higher priority than the general specifications for the compression level (CMPLEVEL) or encryption mode (CRYCONF). This means that a specially set mode prevails over the general specifications, even if it originates from a less specific level.

Arguments

• NUMBER: MAXREC=num - Maximum amount of records per matrix [auto]
• NUMBER: MINSIZ=num - Minimum size allocated for data buffers [64kiB/pots]
• NUMBER: CMPLEVEL=COPY/FAST/DYNAMIC/COMPACT/ARITHMETIC - Default compression level for all pots [DYNAMIC]
  • COPY - Copy data, no compression
  • FAST - Fast compression (fast, lower compression ratio)
  • DYNAMIC - Dynamic compression (balanced speed and compression ratio)
  • COMPACT - Compact compression (slow, high compression ratio)
  • ARITHMETIC - Compression for arithmetic data (integer values (type, flags, length, ...)
• NUMBER: CRYCONF=CLEAR/VEIL/ENC - Default confidentiality for all pots [ENC if key else NONE]
  • CLEAR - Clear data, no confidentiality protection
  • VEIL - Confidentiality protection with veiling
  • ENC - Confidentiality protection with encryption
• NUMBER: INTPROT=NONE/CHKS/AUTH/MAC - Integrity protection [MAC if key else CHKS]
  • NONE - No integrity protection
  • CHKS - Integrity protection with checksum
  • AUTH - Integrity protection with encrypted checksum
  • MAC - Integrity protection with message authentication codes
• NUMBER: SERASE=AUTO/NO/YES - Secure erase data from memory when no longer needed [AUTO -> YES if key else NO]
  • AUTO - Don't erase memory if no longer needed
  • NO - Don't erase memory if no longer needed
  • YES - Erase memory if no longer needed
• SWITCH: FRCUPD - Update identical elements to enforce change of matrix [FALSE]