On Mon, 6 Jan 2025 10:53:43 +0100, Vincent Breitmoser <look@my.amazin.horse> wrote:
...do you think PQC-sized public keys might become a challenge?
I attached to my prior list message the same PQC key that was rejected 
by keys.openpgp.org when I tried to upload it.  It’s 3106 bytes, 
ASCII-armored.
PQ keys with SPHINCS+ signatures (SLH-DSA, FIPS-205) will obviously be 
much bigger, not to mention PQ keys with a Classic McEliece encryption 
subkey if we could please get that wired in from the libgcrypt support 
added last year.  (Pretty please?)  I know that *you* know the 
difference between that and a little lettuce 🥬,[0] but other -users 
members may not.
I’ve been trying to figure out some hackish workarounds for the 
potential sizes of such keys.  It’s off-topic for -users, and not ready 
yet; anyone who is interested now may contact me off-list, preferably 
using PQ-PGP.
[0] Apologies to non-English speakers.  I stole the lettuce/lattice joke 
from some cryptography talk I saw somewhere, where the presenter made 
the same apology.
--
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https://web.archive.org/web/19971114041230/http://www.eff.org/pub/Legal/Cases/ACLU_v_Reno/19970626_eff_cda.announce
https://www.supremecourt.gov/search.aspx?filename=/docket/docketfiles/html/public/23-1122.html

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