MISSING: Message-Security-Assist Extension 5

[Fish-Git]

Message-Security-Assist Extension 5   (March, 2015)

The message-security-assist extension 5 provides support for deterministic pseudorandom-number seeding and generation that conforms to the National Institute of Standards and Technology (NIST) special publication 800-90A. The message-security-assist extension 5 may be available on models implementing the z/Architecture architectural mode. The extension provides the following instruction:

  • PERFORM RANDOM NUMBER OPERATION (PRNO)

The PERFORM RANDOM NUMBER OPERATION instruction provides the following functions:

  • PRNO-Query
  • PRNO-SHA-512-DRNG

The message-security-assist extension 5 requires the secure-hash-algorithm (SHA-512) capabilities of the message-security-assist extension 2 as a prerequisite.

Note: The PERFORM RANDOM NUMBER OPERATION instruction was formerly named PERFORM PSEUDORANDOM NUMBER OPERATION. With the addition of the message-security-assist extension 7, the same instruction is also capable of generating true random numbers, hence the name change. The former mnemonic PPNO is deprecated, but is still retained.

[Fish-Git]

Moved to combined issue #77 "MISSING Facilities support".