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digital signature数字签名
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The passage is mainly about .A. honour and writersB. identity and signatureC. signature and responsibilityD. anonymity and signature
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Part of the signature of the String class is:class String {....};Other part of signature and implementation is completed by you.
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Public Key Infrastructure(PKI) service providers offer organizations fully integrated PKI-managed services designed to secure Intranet, Extranet, Virtual Private Network(VPN), and e-commerce applications. PKI solutions can enable a number of security services, including strong authentication and non-repudiation of transactions.eToken enables the users of PKI systems to generate and store(101)and digital certificates inside the token, creating a secure environment and allowing full portability and maximum ease of use. eToken Pro can also perform. sensitive on-chip(102)operations, ensuring that users' keys axe never exposed to the PC environment, eToken eliminates the need to store(103)and keys on a hard disk or browser file, or to transmit them across the Internet/Extranet; assuring peace-of-mind and confidence during online communications.A digital signature is created using the private key of an individual to ensure the Validity of his request. This technology can be used to guarantee(104)of various transactions. The strength of either the authentication level or the digital signature relies on the level of protection offered to the private key. eToken Pro offers the maximum level of security, since it enables the use of the private key for signing and authenticating inside the eToken.The most secure use of authentication involves enclosing at least one certificate with every signed message. The message(105)verifies the certificate using the CA's public key. If the sender's public key is legitimate, the recipient verifies the message's signature. Digital signatures created with a private key are verified with the digital certificate containing the public key.A．private keysB．public keysC．authentication codesD．message digests
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Whichofthefollowingrequiresanupdatetothebaselineafterinstallingnewsoftwareonamachine?()
A.Signature-basedNIPSB.Signature-basedNIDSC.HoneypotD.Behavior-basedHIDS
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数字签名(Digital Signature)：即是只有信息发送者使用公开密钥算法的主要技术产生的别人无法伪造的一段数字串。下列各项中，(1)是数字签名不能保证的。A．接收者能够核实发送者对报文的签名B．发送者事后不能抵赖对报文的签名C．接收者者不能伪造对报文的签名D．发送者能够保证只有接收者才能打开报文
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Symmetric, or private-key, encryption is based on a secret key that is shared by both communcating parties. The （ ） party uses the secret key as part of the mathematical operation to encrypt （ ） text to cipher text. The receiving party uses the same secret key to decrypt the cipher text to plain text. Asymmetric, or public-key, encryption uses two different keys for each user: one is a （ ） key known only to this one user; the other is a corresponding public key, which is accessible to anyone. The private and public keys are mathematically related by the encryption algorithm. One key ia used for encyption and the other for decryption, depending on the nature of the communication service being implemented. In addition, public key encryption technoligies allow digital （ ） to be placed on messages. A digital signature uses the senders private key to encrypt some portion of the message. When the message is received, the receiver uses the senders （ ） key tp decipher the digital signature to verify the senders identity.A.host B.terminal C.sending D.receiving A.plain B.cipher C.public D.private A.plain B.cipher C.public D.private A.interpretation B.signatures C.encryption D.decryption A.plain B.cipher C.public D.private
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Whatwillbeenabledbythescanningtechnology－TheDynamicVectorStreaming(DVS)?()
A.Firmware-levelvirusdetectionB.Signature-basedvirusfilteringC.Layer4virusdetectionD.Signature-basedspywarefiltering
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下面算法中，属于非对称密钥加密算法的是（53）。A.DES（Digital Encryption Standard）
B.RC2（Rivest Ciphers 2）
C.RC5（Rivest Ciphers 5）
D.DSA（Digital Signature Algorithm）
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Symmetric, or private-key, encryption is based on a secret key that is shared by both communcating parties. The （ ） party uses the secret key as part of the mathematical operation to encrypt （ ） text to cipher text. The receiving party uses the same secret key to decrypt the cipher text to plain text. Asymmetric, or public-key, encryption uses two different keys for each user: one is a （ ） key known only to this one user; the other is a corresponding public key, which is accessible to anyone. The private and public keys are mathematically related by the encryption algorithm. One key ia used for encyption and the other for decryption, depending on the nature of the communication service being implemented. In addition, public key encryption technoligies allow digital （_______） to be placed on messages. A digital signature uses the sender's private key to encrypt some portion of the message. When the message is received, the receiver uses the sender's （） key tp decipher the digital signature to verify the sender's identity.横线处应选（ ）。
A. interpretation
B.signatures
C. encryption
D.decryption
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Why does a digital signature CONTAIN a message digest?为什么数字签名包含一个消息摘要？（）A、To confirm the identity of the receiver 为了确认接收者的身份B、To indicate the encryption algorithm 为了标注加密算法C、To detect any alteration of the message 为了检测对消息的篡改D、To enable transmission in a digital format 为了便于进行数字格式传输
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Examine the following options ，when editing global IPS settings， which one determines if the IOS- basedIPS feature will drop or permit traffic for a particular IPS signature engine while a new signature for thatengine is being compiled？（）A、Enable Signature DefaultB、Enable Engine Fail ClosedC、Enable Default IOS Signature ActualTests.comD、Enable Fail Opened
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Which statement is true about the digital to analog conversion process？（）A、the two steps of digital to analog conversion are decompression and reconstruction of the analog signalB、the two steps of digital to analog conversion are decoding and filteringC、the two steps of digital to analog conversion are decompression and filtering of the analog signalD、the two steps of digital to analog conversion are quantization and decoding
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与RSA（rivest，shamir，adleman）算法相比，DSS（digital signature standard）不包括（）。A、数字签名B、鉴别机制C、加密机制D、数据完整性
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单选题Why does a digital signature CONTAIN a message digest?为什么数字签名包含一个消息摘要？（）A
To confirm the identity of the receiver 为了确认接收者的身份B
To indicate the encryption algorithm 为了标注加密算法C
To detect any alteration of the message 为了检测对消息的篡改D
To enable transmission in a digital format 为了便于进行数字格式传输
考题
单选题与RSA（rivest，shamir，adleman）算法相比，DSS（digital signature standard）不包括（）。A
数字签名B
鉴别机制C
加密机制D
数据完整性
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