Quote from: limitlesszen on June 10, 2025, 09:15:24 PM

fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364140

This value is the maximum valid private key for the secp256k1 elliptic curve (used in Bitcoin and Ethereum).

So can you say what these valid keys are? If you say the keys are the limit that you said, now the specific key I say is much bigger than it, but as you say, this is a valid key. What is the difference?
5Km2kuu7vtFDPpxywn4u3NLu8iSdrqhxWT8tUKjdbgPsxn6ctw9
115792089237316195423570985008687907853269984665640564039457584007909433131315
ffffffffffffffffffffffffffffffffffffffffffffffffffffffff23abc133
1MLjw3cSC4rnkXxPRRKugGJaYDTU7nTT49

Quote from: mcdouglasx on June 10, 2025, 04:03:20 PM

Quote from: mahmood1356 on June 10, 2025, 03:29:04 PM

I have a question and why two different private keys can lead to the same address in certain circumstances?
Example:000000000000000000000000000000000000000000000050574a424748444e47
fffffffffffffffffffffffffffffffebaaedce6af48a08c171ca0d4187a8f88
1ECDtqs8nAUyxNuTY4kTV6rHr6NoVUkMna

s= fffffffffffffffffffffffffffffffebaaedce6af48a08c171ca0d4187a8f88
N = 115792089237316195423570985008687907852837564279074904382605163141518161494337

because s being larger than the order of the curve N they are equivalent to the same private key.

r= fffffffffffffffffffffffffffffffebaaedce6af48a08c171ca0d4187a8f88 % N

r= 000000000000000000000000000000000000000000000050574a424748444e47

r = s

"In response to your question, I have conducted studies on the elliptic curve that allow me to simplify some key encryption calculations. One of these is the calculation of the compressed address of the private key. To compute this, we first determine the decimal representation of the key and then multiply the result by 256. This gives us the decimal number of the private key for the compressed address we are looking for."
5HpHagT65TZzG1PH3CSu63k8DbpvD8s6GJmReYUvFeeoYmkGcfC
Uncompressed: 1LG2ZwyaX8GdofxzBoApa3D9vjjd3iguk9
Dec: 404560468236045398516257
404560468236045398516257 × 256 = 103567479868427622020161792
Dec Compressed : 103567479868427622020161792
KwDiBf89QgGbjEhKnhXJuH7LrciVrZi6EZR5nhxE3fBrTAEyMEVe
1PBVLeJdrLTBVx2j3NqxbPAQ3s8hzLat78