解析:A正确。数字签名是使用发送者的私钥加密了的散列值。数字签名的行为就是用私钥对消息的散列值进行加密。如果Sam想确保他发送给Debbie的消息不被修改,并且希望Debbie相信这个消息只是来自于他自己,那么他就可以对这个消息进行数字签名。这就意味着对该消息先进行单向散列函数算法,然后Sam用他的私钥对这个散列值进行...
数字签名(Digital Signature)是使用特定的加密算法为电子文档或消息创建的一种加密摘要,用于验证消息的完整性以及消息来源的身份。 1. 生成过程: 发送者首先使用某种哈希函数为原始消息生成一个摘要。 然后,使用发送者的私钥加密这个摘要,得到的加密结果即为数字签名。 发送者将原始消息和数字签名一起发送给接收者...
And if the x-coordinate of this third point is the same as the x-coordinate of the random point we started with (r), then this is proof that thedigital signaturewas created using theprivate keyconnected to thispublic key. This is a simplified explanation of the mathematics involved in digi...
B is incorrect because the digital signature does not provide assurance that the message was received by the intended recipient.D is incorrect because the digital signature does not assure that the message was not intercepted. 统计:共计8人答过,平均正确率37% 问题:进入高顿部落发帖帮助...
A person creates a digital signature using a private key to encrypt a signature. At the same time, hash data is created and encrypted. The recipient uses a signer's public key to decrypt the signature. A digital signature can be used with any kind of message, whether or not it's encryp...
aA digital signature is a 'message digest' (created by processing the message contents using a special algorithm) encrypted using the sender's private key. The recipient can, by re-creating the message digest from the message that they receive, using the sender's public key to decrypt the di...
If you don’t want to pay or wait for a digital signature certificate, you can create your own using a process in Microsoft Windows that will provide a certificate. However, other users won’t be able to verify it like they would using one created by a qualified provider. ...
Type a signature Select a picture of an inked signature Write a signature by using the inking feature of a touch-screen PC When the signer adds a visible representation of a signature to the document, a digital signature is added at the same time to authenticate the signer...
A digital signature is used to authenticate digital information — such as documents, e-mail messages, and macros — by using computer cryptography. Digital signatures help to establish the following assurances: AuthenticityThe digital signature helps to assure that the signer ...
If the file was created using Designer (which is only on Windows and I know you are using a Mac) then it has to be edited in Designer. If the file was certified, then you need to remove (clear) the certifying signature before you can edit the file, and to do that you must...