Let’s talk about digital signatures:
Every transaction from an Ethereum externally owned account carries an incrementing nonce. The same nonce can only be included in a block once, preventing the same transaction from being executed repeatedly.
Signatures are secure because of the elliptic-curve discrete logarithm problem: deriving a public key from a private key is fast, while deriving a private key from a public key is infeasible in practice.
$BTC 81779.51（-2.09%）
Every transaction from an Ethereum externally owned account carries an incrementing nonce. The same nonce can only be included in a block once, preventing the same transaction from being executed repeatedly.
Signatures are secure because of the elliptic-curve discrete logarithm problem: deriving a public key from a private key is fast, while deriving a private key from a public key is infeasible in practice.
$BTC 81779.51（-2.09%）