PKI是（）。A、Private Key InfrastructureB、Public Key InstituteC、Public Key Infrastructure公钥基础设施D、Private Key Institute
PKI是（）。
- A、Private Key Infrastructure
- B、Public Key Institute
- C、Public Key Infrastructure公钥基础设施
- D、Private Key Institute
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本题的功能是监听键盘键的敲击，并显示在窗口中。 import javax,．swing．*； importjava．awt．*； ， import java．awt．event．*； public class java3 extends JFrame. extends KeyListener { private String linel=""line2="" private String line3="" private JTextArea textArea； public java3 { super("java3")； textArea=new JTextArea(10，15)； textArea．setText("Press any key on the key- board…")； textArea．setEnabled(false)； addKeyListener(this)； getContentPane．add(textArea)； setSize(350，100)； show； } public void keyPressed(KeyEvent e) { linel="Key pressed："+e．getKeyText(e． getKeyCode)； setLines2and3(e)； } public void keyReleased(KeyEvent e) { linel="Key released："+e．getKeyText(e． getKeyCode)； setLines2and3(e)： } public void keyTyped(KeyEvent e) { Linel="Key typed："+e．getKeychar； setLines2and3(e)； } private void setLines2and3(KeyEvent e) { line2="This key is"+(e．isActionKey?"" ："not")+"an action key"； String temp=e．getKeyModifiersText(e．get- Modifiers)； hne3="Modifier keys pressed："+(temp．e- quals("")?"none"：temp)； textArea．setText(linel+"＼n"+line2+"＼n" +line3+"＼n")； } public static void main(String args[]) { java3 app=new java3； addWindowListener(new Windowadapted { public void windowClosing(WindowEvent e) { System．exit(0)； } })； } }
In a public-key cryptosystem,(71)encrypted with the public key can only be deciphered with the private key from the same(72). Conversely,(71)encrypted with the private key can be decrypted only with the public key. Users can make their public keys(73)available or place them at a key distribution center or others to access. However, the private key must be(74)safe. In public-key systems there's no(75)to find a safe channel for communicating a shared secret key.A．binarytextB．hypertextC．plaintextD．supertext
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
Which of the following authenticates a web server to the remote client in PKI?() A.FQDNB.DNS nameC.Public keyD.Private key
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
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. interpretationB.signaturesC. encryptionD.decryption
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. plainB. cipherC.publicD.private
The DES algorithm is an example of what type of cryptography?DES算法是下面哪一个加密算法的一个样例？（）A、Secre tKey.秘密密钥B、Asymmetric Key.非对称密钥C、Two-key双密钥D、Public Key.公钥
Which of the following is NOT related to a Public key infrastructure (PKI)?以下哪个概念与公钥基础设施（PKI）无关？（）A、A X.509 certificate（X.509证书）B、A Ticket Granting Service（票据授予服务）C、A Registration authority（注册机构）D、A Certificate authority（证书机构）
Which statement is true about a certificate authority？（）A、An entity responsible for registering the private key encryption used in a PKIB、An agency responsible for granting and revoking public-private key pairsC、A trusted third party responsible for signing the public keys of entities in a PKIbased systemD、A trusted third party responsible for signing the private keys of entities in a PKIbased system
Which of the following authenticates a web server to the remote client in PKI?（）A、FQDNB、DNS nameC、Public keyD、Private key
public class Key { private long id1； private long 1d2； // class Key methods } A programmer is developing a class Key， that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key？（）A、 public int hashCode（）B、 public boolean equals（Key k）C、 public int compareTo（Object o）D、 public boolean equals（Object o）E、 public boolean compareTo（Key k）
Which two statements about the Diffie-Hellman (DH) key exchange process are correct? （）(Choose two.)A、In the DH key exchange process, the session key is never passed across the network.B、In the DH key exchange process, the public and private keys are mathematically related using the DH algorithm.C、In the DH key exchange process, the session key is passed across the network to the peer for confirmation.D、In the DH key exchange process, the public and private keys are not mathematically related, ensuring higher security
Which two statements about the Diffie-Hellman （DH） key exchange process are correct？（）A、In the DH key exchange process， the session key is never passed across the network.B、In the DH key exchange process， the public and private keys are mathematically related using the DH algorithm.C、In the DH key exchange process， the session key is passed across the network to the peer for confirmation.D、In the DH key exchange process， the public and private keys are not mathematically related， ensuring higher security
Which of the following provides the underlying trust infrastructure to enable easy and secure sharing of information organizations and in cross-premises organizations？（）A、Public Key InfrastructureB、Role-based access controlC、FederationD、Digital certificate
PKI的全称是（）。A、Private Key IntrusionB、Public Key IntrusionC、Private Key InfrastructureD、Public Key Infrastructure
PKI是（）。A、Private Key lnfrastructureB、Public Key lnstituteC、Public Key lnfrastructureD、Private Key lnstitute
单选题Which of the following is NOT related to a Public key infrastructure (PKI)?以下哪个概念与公钥基础设施（PKI）无关？（）AA X.509 certificate（X.509证书）BA Ticket Granting Service（票据授予服务）CA Registration authority（注册机构）DA Certificate authority（证书机构）
单选题PKI是（）。APrivate Key InfrastructureBPublic Key InstituteCPublic Key Infrastructure公钥基础设施DPrivate Key Institute
单选题Which statement is true about a certificate authority？（）AAn entity responsible for registering the private key encryption used in a PKIBAn agency responsible for granting and revoking public-private key pairsCA trusted third party responsible for signing the public keys of entities in a PKIbased systemDA trusted third party responsible for signing the private keys of entities in a PKIbased system
多选题Which two statements about the Diffie-Hellman （DH） key exchange process are correct？（）AIn the DH key exchange process， the session key is never passed across the network.BIn the DH key exchange process， the public and private keys are mathematically related using the DH algorithm.CIn the DH key exchange process， the session key is passed across the network to the peer for confirmation.DIn the DH key exchange process， the public and private keys are not mathematically related， ensuring higher security
多选题Which two statements about the Diffie-Hellman (DH) key exchange process are correct? （）(Choose two.)AIn the DH key exchange process, the session key is never passed across the network.BIn the DH key exchange process, the public and private keys are mathematically related using the DH algorithm.CIn the DH key exchange process, the session key is passed across the network to the peer for confirmation.DIn the DH key exchange process, the public and private keys are not mathematically related, ensuring higher security
多选题public class Key { private long id1； private long 1d2； // class Key methods } A programmer is developing a class Key， that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key？（）Apublic int hashCode（）Bpublic boolean equals（Key k）Cpublic int compareTo（Object o）Dpublic boolean equals（Object o）Epublic boolean compareTo（Key k）