john_alan

12 ms·

91.
by john_alan 5y ago
other poster described clamping with is right. But yep, any 256-bit string is good.
92.
by john_alan 5y ago
2^255 - 19, describes the finite field over which the elliptic curve is defined. The "keyspace" in the sense of valid public keys is really defined by the order of the curves generator, G, which in this case is approximately 2^252
93.
by john_alan 5y ago
It's 2^255 - 19, not 255^19.
94.
by john_alan 5y ago
“Crap” I daily drive 3 Linux devices and 2 macOS. macOS isn’t close to crap. It’s better than Linux in some contexts and worse in others. Overall about par.
95.
by john_alan 5y ago
I think the author is confused about the goals of “web 3”.
96.
by john_alan 5y ago
It’s funny that you’re a proponent of NIST/FIPS approved crypto but also worry about NSA backdoors.
97.
by john_alan 5y ago
I find the way you target certain users bizarre. Many comments violate the strict code of conduct and go unchecked.
98.
by john_alan 5y ago
Some are, Monero for example. I’m not here to shill. But defi and private digital money have value. Increasingly so when you look at government incompetence globally.
99.
by john_alan 5y ago
Precisely, it upsets the pseudo-intellectuals.
100.
by john_alan 5y ago
Private, self sovereign money for the internet. I think that’s a use case.
101.
by john_alan 5y ago
actually its "number of wallets with balance"/2^160. You don't need to find a specific private key, anyone will do that yields a public key that hashes to the BTC address.
102.
by john_alan 5y ago
You could shorten that by recognising the address space is more like 2^160 in BTC, due to the address generation process, more than one private key can spend from a given address, technically.
103.
by john_alan 5y ago
Hey John - I came here to ask the same question. How is that possible. Same happened to me. >> leads to the "end" page, it's not as I though a "big jump" from some random page... thus I suspect it's simpl
104.
by john_alan 5y ago
Currently 12.1 has this issue though.
105.
by john_alan 5y ago
Still an issue in latest 12.1 beta. Really frustrating. Just dropped a chunk of change on an M1 Pro too.
106.
by john_alan 5y ago
On what basis do you think that the ECDLP will be solved in polynomial time in a classical context? I would expect we will more likely have an error-correcting quantum machine sooner than the aforementioned. Given the pace Google et al are
107.
by john_alan 5y ago
It would reduce the output space of a cryptographic hash by its square root. That would help speed up attacks would it not?
108.
by john_alan 5y ago
> Our work show that SHA-1 is now fully and practically broken for use in digital signatures Yet 2nd preimage resistance is intact. Zzz.
109.
Sagemath(sagemath.org)
2 points by john_alan 5y ago|0 comments
110.
by john_alan 5y ago
> The NIST P-curves aren't backdoored How can you assert this? Can you explain the coefficient choices?
111.
by john_alan 5y ago
Yep Excel is great, actually working on a Minix like Kernel in it.
112.
by john_alan 5y ago
Clearly. Sorry I forgot we have to talk about covid everywhere all the time.
113.
by john_alan 5y ago
How is this on the front page of Hacker News.
114.
by john_alan 5y ago
Hacker news is holistically anti cryptocurrency. Which disappoints me. It has virtues. As someone who works in applied Cryptography and has also worked for the European Central Bank, we need “crypto”. 1) seigniorage is an abused privilege.
115.
by john_alan 5y ago
The contention that iMessage doesn't do a "space save" mode on device is wrong. I have 75GB of messages in iCloud, I see 25GB on my 500GB Mac and 11GB on my 64GB iPhone.
116.
by john_alan 5y ago
Yeah I agree that Aztec is more flexible than ZEC. But their weaknesses are a dealbreaker for me.
117.
by john_alan 5y ago
Not default privacy, trusted setup.
118.
by john_alan 5y ago
I work in applied Cryptography so I’m well placed to judge. Other than Monero and ZEC (the latter of which has some issues for me which I posted about before) Grin is the only other project that isn’t a clone.
119.
by john_alan 5y ago
Monero. It’s provided a private money for the internet. That helps people. It’s valuable. A permissionless, censorshipless decentralised private money.
120.
by john_alan 5y ago
Ok understood

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