以下の英語の用語と説明を日本語にしてください。忠実な翻訳でなくて構いません。AI翻訳にかけて内容を理解した上で、ご自身の言葉で説明してください。
日本語の提案はGitHubでプルリクエストとして受付中。プルリクエストがマージされたら、報酬をライトニング⚡️送金します。
提案手順はこちらの「2. 用語集の用語説明の提案手順」をご参照ください。
Signature
2,100 sats
A digital signature is similar to a physical signature in theory, yet far more secure and trustworthy. Like its physical counterpart, a digital signature indicates approval of the data being signed. Unlike a physical signature, a digital signature cannot be copy-pasted because a signature is unique for each piece of data being signed.
For example, if you create a signature for the text “Hello”, this signature is invalid for the text “Hey”. This trait allows digital signatures to be publicized without risk of fraud.
There are three parts to a digital signature: the data being signed, the public key of the signer, and the signature itself. The data can be anything digital, including text, an image, an audio file, and more. The public key is a pseudonymous form of identity, informing the public that the owner of the corresponding private key has signed this message. Lastly the signature is mathematical proof that the owner of the public key and the corresponding private key signed the exact data provided.
The magic here is that the private key is required to create the signature, but not required to verify it. Anyone can verify that the signature is valid using only the public key. Furthermore, since the signature is generated using the hash of the data it is signing, verifiers can be sure that the data provided is unaltered since it was signed.
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