Anyone else interested in bitcoin? I implemented a large chunk of its technology in C. Includes base58 and base32 encoding, an implementation of the elliptic curve encryption algorithm, node intercommunication, and some other things. Take a look and let me know what you think.
Is it safe to only display the first 13 base58 characters of Bitcoin addresses?
I'm building a wallet which has a "Confirm transaction" pane which displays the destination Bitcoin address after the user scans a Bitcoin QR code, and the user should check the address is correct. For usability purposes, I only want to display as many characters as necessary - and no more - to not compromise security. My idea is to only display the first few characters, enough to guarantee that no attacker could create an address with the same first characters and dupe the user to send funds to his address. According to this Vanitygen page, an AMD Radeon 58XX or 68XX GPU can search through 23.5 Mkey/s. Assuming an attacker is really well equipped, and can do 25 Gkey/s for a whole year, then an attacker can search through 25*10^9*60*60*24*365 keys. Since Bitcoin addresses are represented in base58 (disregarding the first character in a Bitcoin address being fixed to 1 or 3), if I show 12 characters after the first character, then the probability of an attacker succeeding is 0.054% according to my calculations. I'm therefore considering only displaying the first 13 characters of Bitcoin addresses in the "Confirm transaction" pane. Did I miss anything? Are my assumptions reasonable? Are my calculations correct?
"See memo.sv/topic/hmwyda". Don't know what that shit is but anyway. (Seems like they're sending dust around) Doesn't really seem as hard to "Generate" specific wallet addresses as I thought, if people can do that... or am I missing something?
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Bitcoin KNACKT 8.000 USD BITCOIN-SHORT-SQUEEZE Base58 Update KW29/18 - Duration: 8 minutes, 46 seconds. Base58. 318 views; 1 year ago; 6:36. PREISANSTIEG auf dem KRYPTOmarkt - Was sind DIE ... I give a demonstration on how you can export, encrypt, and print out your Bitcoin wallet (private key). Site for the Base 64 encoder I used: https://sourcefo... Before we delve into the inner workings of a bitcoin transaction I wanted to explain how the actual bitcoin address is derived from the public key which in turn is derived from the private key. I ... Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons). After the introduction of Bitcoin many Bitcoin ... In this video, we will continue a new series - coding bitcoin wallet in python. Using python3 I am going through the algorithm to encode any string of data to base58 characters. It is the encoding ...