暗号資産ナレッジベース

Rust フロントでアカウントをデシリアライズするにはどうすればよいですか? ↗

#[max_len(32)] が欠落している場合の問題は、シリアル化されたアカウントには 32 バイトにするために 0 バイトが埋め込まれた文字列が含まれているのに対し、逆シリアル化構造体は文字列が実際に長くなるまでのバイ...

モジュール式マルチプログラムシステムの Solana/Anchor 認証のベストプラクティス (プログラム間での役割の共有、CPI) ↗

リポジトリは非公開のようです: どのオプションにも長所と短所があるため、ハイブリッド実装を作成して軽減できます。採用できるマルチプログラムアプリケーションのいくつかを以下に示します。 Marinade Finance:...

Why do these two Ethereum transactions have different gas usages? Can't explain it from the GETH EVM debug traces ↗

One of the reason for the gas cost not being the same would be that one account did not have any usdc before the transaction and the other already had some. It cost more gas to set a 0 value to non ze...

What does it mean that the security of Bitcoin public keys and 256-bit ECDSA is 128 bits? ↗

What does it mean that the security of 256-bit ECDSA, and therefore Bitcoin keys, is 128 bits? I mean, if I have approximately 2^256 possible points on the elliptic curve (thus possible public keys),...

Receiving donation on a bitcoin address and security issues of reusing the same address ↗

For a blog that only receives occasional small amounts you probably shouldn't worry too much about it. However, if you plan to scale up, here are some things to consider: One issue with using the sam...

Is 24 words seed safer than 12 words in terms of bruteforcing the private key ↗

Regardless of whether you have a passphrase or not 12 words is just as secure as 24 words because the resulting public key will still require 2^128 iterations to compute its private key using the most...

Downloading the pruned blockchain file directly from external source ↗

It introduces too much trust into the download source. It's the same thing as just uploading a datadir. You aren't verifying any of the blockchain history; what you download could be a fork of the blo...