• Subject: Re: cipher length
  • From: leif@xxxxxxxxxxxxx
  • Date: Tue, 18 Jan 2000 08:28:19 -0600

> > What is the rationale for limiting CIPHER source length to only 64
> bytes?

Phil, the CIPHER instruction on S/38 did not have this limitation.
I think CIPHER on the AS/400 has been deliberately crippled to
prevent you from using it to do encryption for
1) marketing reasons. IBM wants to sell you cryptographic support
2) export problems with strong encryption

Also, the S/38 could decrypt while the AS/400 cannot.

So the CIPHER instruction has been crippled to the point where
it really only can be used to one-way encrypt passwords. 

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