Was ist der erste Brief, der Ihre Adresse in Bitcoin Core? `könnte verwendet werden, um den Kompromiss der anonymen Natur von Adressen` Nicht unbedingt. Sie könnte so etwas wie bitmessage. Natürlich, das haben alle der Skalierung Probleme, die bitcoin selbst hat. Danke für deine Antwort. Also, wie können wir dann herausfinden, wie viele kilobytes einer Transaktion werden? Gerade lese ich diese Antwort und es war, wie ich Las einige fremde Sprache... Kann mir bitte jemand erklären für die nicht technische person? d.h. wenn ich ein backup meiner .dat-Datei-und nur empfangen von bitcoins mit ihm und nie senden, wird das backup ewig? Schön. Ich erhalte eine Fehlermeldung `../.pid` Verzeichnis oder Datei nicht vorhanden ist. ist pid obligatorisch ? aber ich sage, dass Knoten 2 nie hört über C, aber hört D was auf der Oberseite B

Was Sie Fragen, ist, wie um herauszufinden, was die Zeichen für eine multisig Transaktion.

Multisig ist tatsächlich sehr nahe an diese Antwort. Es gibt ein paar feine Unterschiede, aber so lassen Sie mich versuchen, zusammenzufassen Schritt-für-Schritt mit Hilfe der Transaktion-wie bereits bei der blockchain

Beachten Sie, dass für jede Eingabe, die eigentliche hash signiert werden, wird unterschiedlich sein. Nämlich, werden Sie brauchen, um füllen Sie das einlösen Skript für, dass nur Eingang und null-Werte für jeden anderen Eingang. Um zu veranschaulichen, lassen Sie uns herausfinden, was Sie brauchen, um Zeichen für den ersten input.

  1. Transaktion-version: 01000000
  2. Anzahl der Eingänge: 03
  3. Tx input #1 hash: fdb1fe0b4506f8d412f8498a0d747701bc5ed8c009e779ee670c82361c1d1dd5
  4. Tx input #1 index: 01000000
  5. Tx input #1 einlösen script Länge: 47 (71 bytes)
  6. Tx input #1 einlösen Skript: 522102cebf6ab580948d146b7cc771d8e646974349d3d7b11f3e03287d0997a477d3b921037ba651485b7a2cb222191eb64a55926e62bbabfe9b5ed2a9488aad547b20428252ae
  7. Tx input #1 Sequenz: ffffffff
  8. Tx-Eingang #2 hash: a614d26f1878078a00a3c296085576cd7e6361234ea82c865681041fcfdacea8
  9. Tx-Eingang #2-index: 01000000
  10. Tx-Eingang #2 einlösen script Länge: 00 (nichts)
  11. Tx-Eingang #2 Sequenz: ffffffff
  12. Tx-Eingang #3 hash: d064d2f9cf9e5196a9d81dd87718c9cfbec97f3ccac7164946d956421597c7f1
  13. Tx-Eingang #3 index: 01000000
  14. Tx-Eingang #3 einlösen script Länge: 00 (nichts)
  15. Tx-Eingang #3 Sequenz: ffffffff
  16. Anzahl der Ausgänge: 01000000
  17. Betrag wird an die erste (und einzige) Ausgabe: e068704600000000
  18. Ausgabe Skript-Länge: 19
  19. Ausgabe Skript: 76a9142c76e6fdd1a81c902afa62e78ec71435708d9d9d88ac
  20. Lock-Zeit Bereich: 00000000
  21. SIGHASH_ALL: 01000000

Nun, wenn Sie Doppel-sha256 diese bytes erhalten Sie:

9c4b551f37f4b383af9216045d80b2fcd4ed57bddca8df388ec29601cbd2a4f1

Und in der Tat, wenn Sie überprüfen gegen die eingebettete Signatur der Transaktion, können Sie sehen, dass dies tatsächlich der hash-unterzeichnet wurde. Hier ein code-Beispiel, um zu überprüfen, nutzen Sie die hervorragende Anbindung btcd Bibliothek geschrieben in go:

package main

import - (
"Codierung/hex"
"fmt"
"hash"

"github.com/btcsuite/btcec"
"github.com/btcsuite/fastsha256"
)

// Berechnen der hash-Wert von hasher über buf.
func calcHash(buf []byte, hasher hash.Hash) []byte {
hasher.Write(buf)
 zurück hasher.Sum(nil)
}

// Hash160 berechnet den hash-ripemd160(sha256(b)).
func Hash256(buf []byte) []byte {
 zurück calcHash(calcHash(buf, fastsha256.New()), fastsha256.New())
}

func main() {
 x : = "0100000003fdb1fe0b4506f8d412f8498a0d747701bc5ed8c009e779ee670c82361c1d1dd50100000047522102cebf6ab580948d146b7cc771d8e646974349d3d7b11f3e03287d0997a477d3b921037ba651485b7a2cb222191eb64a55926e62bbabfe9b5ed2a9488aad547b20428252aeffffffffa614d26f1878078a00a3c296085576cd7e6361234ea82c865681041fcfdacea80100000000ffffffffd064d2f9cf9e5196a9d81dd87718c9cfbec97f3ccac7164946d956421597c7f10100000000ffffffff01e0687046000000001976a9142c76e6fdd1a81c902afa62e78ec71435708d9d9d88ac0000000001000000"

 b, _ := hex.DecodeString(x)

 hash := Hash256(b)
 fmt.Printf("hash der Sache zu signieren: %x\n", hash)

 pubkeyStr := "02cebf6ab580948d146b7cc771d8e646974349d3d7b11f3e03287d0997a477d3b9"
 pubkeyStr2 := "037ba651485b7a2cb222191eb64a55926e62bbabfe9b5ed2a9488aad547b204282"
 pubkeyBytes, _ := hex.DecodeString(pubkeyStr)
 pubkeyBytes2, _ := hex.DecodeString(pubkeyStr2)

 p, _ := btcec.ParsePubKey(pubkeyBytes, btcec.S256())
 p2, _ := btcec.ParsePubKey(pubkeyBytes2, btcec.S256())

 fmt.Printf("pubkeys: %s, %s\n", p, p2)

 sigStr : = "3044022025332b6dabf11e493fbc62c93e7302c48666512e1cf88157c26176f4af6d064702201ee7ec25d0917244e514c402e8751f112dfd1bef2b22ec5e496fbafabb52bf010148"

 sigStr2 : = "3045022100fa1f17bf59bee0ac33ae5f682711c5471c73a4aeb898aee218478289a4c7aa6e02207b40dfeae3fa4a50dc147bd42be40370d76a35d72c0b27b27c4ba2439a565fb901"

 sigBytes, _ := hex.DecodeString(sigStr)
 sigBytes2, _ := hex.DecodeString(sigStr2)

 s, _ := btcec.ParseDERSignature(sigBytes, btcec.S256())
 s2, _ := btcec.ParseDERSignature(sigBytes2, btcec.S256())

 fmt.Printf("sig: %s\n", s)

 fmt.Printf("Unterschrift gültig ist: %v\n", s.Überprüfen(hash, p))
 fmt.Printf("Unterschrift gültig ist: %v\n", s2.Überprüfen(hash -, p2 -))

}

Sie können das gleiche tun mit input #2 und input #3, um den hash, der bekommt unterzeichnet durch die änderung #5 und #6 (kombiniert) werden 00 und #10 oder #14 in den Schritten oben, um 47522102cebf6ab580948d146b7cc771d8e646974349d3d7b11f3e03287d0997a477d3b921037ba651485b7a2cb222191eb64a55926e62bbabfe9b5ed2a9488aad547b20428252ae

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