Quote from: james5000 on Today at 02:08:02 PM

Quote from: vneos on Today at 09:16:07 AM

I wrote a simple script for solving puzzle 66: https://github.com/allinbit/btc_puzzle

If it could be ported to gpu then it would be faster but I don't know anything about it.

Your code uses scalar multiplication for all the keys, making it even slower.
The code is interesting, although for the processor it can take a long time, it needs to be on the video card itself.

No, the code doesn't directly involve scalar multiplication for generating private keys. Instead, it generates private keys by randomly shuffling bits to create a binary string, which is then converted to a hexadecimal representation. The generated private key is then used to create a public key and subsequently generate a Bitcoin address.

In the context of Bitcoin, scalar multiplication is a fundamental operation used in elliptic curve cryptography (ECC). Scalar multiplication is used to derive a public key from a private key, and it's a core operation in generating Bitcoin addresses. However, the code you provided doesn't explicitly perform scalar multiplication. It generates private keys in a way that doesn't directly reflect the typical method used in Bitcoin.

Here's how scalar multiplication is generally used in Bitcoin address generation:

A private key is randomly generated using a secure random number generator.
Scalar multiplication is performed on the elliptic curve with the private key and a predefined generator point to compute the corresponding public key point.
The x-coordinate of the resulting public key point is used to create a Bitcoin address.
In the code, the process of generating private keys is unrelated to scalar multiplication. Instead, it generates private keys through a random bit shuffling approach, converts them to hexadecimal format, and then processes them to create public keys and Bitcoin addresses.

If you're interested in learning more about the actual process of generating Bitcoin addresses using scalar multiplication and elliptic curve cryptography, I'd recommend looking into resources that explain ECC, Bitcoin key derivation, and address generation in more detail.