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Status Future consideration
Workspace IBM Z and LinuxONE Systems Hardware
Categories Crypto HW
Created by Guest
Created on May 1, 2020

RELATED IDEAS

ChaCha20-Poly1305 for IBM Z and LinuxONE

Requesting system hardware support particularly in IBM Crypto Express features (but also in CP Assist for Cryptographic Processing, and in operating system and middleware exploiters such as z/OS System SSL) for the ChaCha stream cipher (at least the ChaCha20 variant but preferably also the ChaCha12 variant branded as "Adiantum") and the Poly1305 one-time authenticator algorithms. These algorithms are described in IETF RFCs 7539 and 7905.

Idea priority Medium
  • Guest
    Reply
    |     Aug 16, 2021

    Continues to be under consideration as stated earlier.

  • Guest
    Reply
    |     Nov 19, 2020

    .Thank you for the recommendation. The teams are actively considering this in upcoming designs.

  • Guest
    Reply
    |     Aug 24, 2020

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - z Systems Hardware
    Product - z Systems Hardware
    Component - Crypto HW

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - z Systems Hardware
    Product - z Systems Hardware
    Component - Security / Crypto

  • Guest
    Reply
    |     May 3, 2020

    To clarify and elaborate, TLS 1.3 (IETF RFC 8446) specifies that TLS_CHACHA20_POLY1305_SHA256 "SHOULD" be implemented for TLS 1.3 compliance. (TLS 1.2 also allows TLS_CHACHA20_POLY1305_SHA256.) IETF RFC 8439 is the successor to IETF RFC 7539.

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