At the risk of being a grump here I am going to say (a.) there is no such thing as a quantum-safe system and (b.) the assertion that there is is counter-productive.
There is no such thing as a quantum-safe system. If I buy a z16 and use 2048-bit RSA key-pairs on it, then my system is not quantum-safe.
And the assertion itself reinforces the myth that Brian Marshall and others have spoken about: the mainframe is not the most secure system in the world; the mainframe is the most securable system in the world. There is no box you can buy that will make you quantum-safe. I might have come up with the marketing claim that the z16 facilitated a quantum-safe environment.
Charles A. Mills | Chief Development Officer
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Let me summarize, to make this (hopefully) clear. The z16 provides quantum-safe cryptography in two distinct ways, and I can see that it is causing confusion.