October 2024
Intermediate to advanced
396 pages
12h 18m
German
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KAPITEL 8
Digitale Signaturen
Momentan werden bei Bitcoin zwei Signaturalgorithmen eingesetzt: der Schnorr-Signaturalgorithmus und der Elliptic Curve Digital Signature Algorithmus (ECDSA). Diese Algorithmen werden für digitale Signaturen basierend auf privaten/öffentlichen Schlüsselpaaren aus elliptischen Kurven verwendet, wie sie in »Kryptografie mit elliptischen Kurven« auf Seite 82 erläutert wurden. Sie werden zur Freigabe von Segwit-v0-P2WPKH-Outputs, beim Segwit v1 P2TR Keypath Spending und den Skriptfunktionen OP_CHECKSIG, OP_CHECKSIGVERIFY, OP_CHECKMULTISIG, OP_CHECKMULTISIGVERIFY und OP_CHECKSIGADD verwendet. Wird einer dieser Opcodes ausgeführt, muss eine Signatur zur Verfügung gestellt werden.
Eine digitale Signatur dient bei Bitcoin ...
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