Digital Certificates - Reading Assignment

Blockchain Business Course
#522
  • What is a digital certificate?

Public Key Certificate, cryptographically link ownership of a public key with the entity that owns it.

  • What is the difference between a digital certificate and a public key?

In public key cryptography; digital signatures are generated using algorithms for signing of data, with the result that a recipient can irrefutably confirm that the data was signed by the holder of a particular public key. On the other hand digital certificates themselves are signed digitally, they should not be trusted unless the signature can be verified.

  • What is the most common use case for digital certificates?

Digital certificates are most commonly used by web browsers and web servers to provide assurance that published content has not been modified by any unauthorized actors, and to share keys for encrypting and decrypting web content.

  • What is a certificate authority?

A third party issuer of digital certificates.

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#523
  1. Digital certificate is a public key signed by a certificate authority, and links a public key to the specific entity that owns it.
  2. The public key is a public key and a cert is a signed and verified public key.
  3. To establish the identity of the person/entity, and to allow and facilitate encrypted communication.
  4. CAs are trusted entities, whose function is to provide high security, and act as the backstop of the cert chain. They sign certificates, and by doing so, assert that the cert is owned by the person represented in the cert.
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#524
  1. Digital certificates are electronic credentials that binds the owner to a public and private key.
  2. A public key is what is shared to encrypt data, where as a digital certificate is the credentials that verify the public key belongs to a specific owner.
  3. Initializing secure SSL connections and sharing keys to be used for public key encryption.
  4. A certificate authority is a trusted third party that issues digital certificates.
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#525
  1. What is a digital certificate?
    A digital certificate is for linking ownership of a public key to the entity owning it.
  2. What is the difference between a digital certificate and a public key?
    A certificate is a signed and verified public key.
  3. What is the most common use case for digital certificates?
    They are often used for initalizing SSL connections between the web browsers and web servers.
  4. What is a certificate authority?
    A trusted thrid party which is in charge of issuing digital certificates.
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#526
  1. A digital certificate cryptographically links ownership of a public key with the entity that owns it.
  2. A digital certificate is issued by a 3-rd part authority.
  3. For SSL certificates.
  4. A certificate authority issues certificates, by checking that indeed the person requesting a certificate is who he says he is.
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#527
  1. Also known as a public key certificate, a digital certificate cryptographically links ownership of a public key with the entity that owns it.
  2. Digital certificates are for sharing public keys used for encryption and authentication. The digital certificate includes the public key being certified, identifying information about the entity that owns the public key, metadata related to the digital certificate, and a digital signature of the public key created by the issuer of the certificate.
  3. Most commonly, digital certificates are used in public key encryption functions - initializing secure SSL connections between web browsers and web servers. They provide assurance that published content has not been modified by any unauthorized actors, and they’re used to share keys for encrypting and decrypting web content.
  4. Certificate authority (CA) is a trusted third party in the context of a public key infrastructure (PKI). They issue digital certificates.
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#528

  1. A digital certificate is used for authentication. It is a signed document used to cryptographically link a public key with its owner

  2. A public key is anonym. You often can’t know for sure who the owner of it is. A digital certificate provides that knowledge relying on a trusted third party.

  3. Digital certificates are used to link a web server for a domain to the individual or organization that owns the domain

  4. A certificate authority (CA) is a trusted third party that issues digital certificates

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#529
  1. What is a digital certificate?
  • A digital certificate holds identifying information and a digital signature which is used to cryptographically link ownership of a public key with the entity that owns it. It can also be known as a public key certificate.
  1. What is the difference between a digital certificate and a public key?
  • Public key cryptography actually needs a pair of keys to be complete. The private key, which is used for decrypting and signing, and the other which is the public key, is used for encrypting the data sent to the public key holder or authenticating the certificate holder’s signed data.
  1. What is the most common use case for digital certificates?
  • Digital certificates are mainly used to provide assurance that published content has not been modified by anyone not authorised, or to share public keys for encrypting and decrypting web content.
  1. What is a certificate authority?
  • The majority of digital certificates are issued by a certificate authority or CA, which acts like a trusted third party entity. This enables individuals to have verification of the trustworthiness of the digital certificates that it issues.
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#530

  1. Also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it, and finally, digital certificates are for sharing public keys to be used for encryption and authentication.

  2. Digital certificate (public key) enables a number of different functions, including both encryption and authentication.
    Digital signatures are generated using algorithms for signing of data, with the result that a recipient can irrefutably confirm that the data was signed by the holder of a particular public key.

  3. Digital certificates are used in public key cryptography functions; they are most commonly used for initializing Secure Sockets Layer connections between web browsers and web servers, and lastly, also used for sharing keys to be used for public key encryption and authentication of digital signatures.

  4. Considered trusted third parties in the context of a Public Key Infrastructure. (PKI)

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#531
  1. What is a digital certificate?
    A digital certificate cryptographically links ownership of a public key with the entity that owns it. The purpose of digital certificates is to share the public key, which is used for encryption and authentication.
  2. What is the difference between a digital certificate and a public key?
    The public key is used for encryption of the data to be send and for authentication. Digital certificates include both, public and private key. With this, received data can be decrypted and verified.
  3. What is the most common use case for digital certificates?
    Linking a web server for a web domain to the individual or organization that owns the domain.
  4. What is a certificate authority?
    It is a trusted third party in the context of a Private Key Infrastructure, which issues digital certificates.
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#532
  1. A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it.
  2. Public key cryptography depends on key pairs: one a private key to be held by the owner and used for signing and decrypting, and one a public key that can be used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed data. The digital certificate enables entities to share their public key in a way that can be authenticated.
  3. They are most commonly used for initializing secure SSL connections between web browsers and web servers.
  4. CAs are considered trusted third parties in the context of a PKI.
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#533
  1. What is a digital certificate?
    Links the public key to an issuing organization that owns the product.
  2. What is the difference between a digital certificate and a public key?
    public key is an abstract layer that fits into a digital certificate to prove authentication
  3. What is the most common use case for digital certificates?
    used to link public key with the owner who own it
  4. What is a certificate authority?
    the entity who you trust that validates the certicate as genuine or trustable
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#534

  1. A digital certificate or public key certificate is used to link ownership of a public key with an entity via cryptography. Digital certificates are for sharing public keys to be used for encription and authentication.

  2. We use digital certificates to share public keys and they are used to encrypt data.

  3. They are mostly used for securing SSL connections between web browsers and servers.

  4. Certificate authority is a trusted third party that issues digital certificates in the PKI context.

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#535
  1. A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it.
    DIGITAL CERTIFICATES:
  • are fore sharing public keys to be used for encryption and authentication
  • include the public key being certified identifying informations about the entity that owns public key
  1. A digital certificate differs from a public key in that it is broader. Digital certificates include the public key being certified, identifying information about the entity that owns the public key, metadata relating to the digital certificate and a digital signature of the public key created by the issuer of the certificate.
  2. Digital certificates are most commonly used by web browsers and web servers to provide assurance that published content has not been modified by any authorized actors, and to share keys for encrypting and decrypting web content
    4.A third party issuer of digital certificates.
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#536

1- It is used to cryptographically link ownership of a publick key with the entity that owns it.
2- A public key is a component of a digital certificate.
3-To initialize secure SSL connections.
4- A third party issuer of the digital certificates.

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#537

  1. What is a digital certificate?
    Aka public key certificate - Used to cryptographically link ownership of a public key with the entity that owns it.

    Used for sharing public keys to be used for encryption and authentication.

    Includes the public key being certified, identifying info about the entity that owns the public key, metadata relating to the digital certificate and a digital signature of the public key created by the issuer of the certificate.

    Enables entities to share their public key in a way that can be authenticated.

  2. What is the difference between a digital certificate and a public key?
    Public keys facilitate encryption of data sent while the digital certificate verifies ownership of those public keys.

  3. What is the most common use case for digital certificates?
    For initializing secure SSL connections between web browsers and web servers - provides assurance that published content has not been modified by any unauthorized actors/entities, shares keys for encrypting/decrypting web content.

  4. What is a certificate authority?
    Considered trusted third parties in the context of a Public Key Infrastructure (PKI); using a trusted third party to issue digital certificates enables individuals to extend their trust in the Certificate Authority (CA) to the trustworthiness of the digital certificates that it issues.

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#538
  1. A digital certificate confirms the connection to a public key
    2 a digital certificate includes the public key
  2. To authenticate a website connection to a web server
    4 the CA issues digital certificates
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#539

  1. What is a digital certificate?
    A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it.

  2. What is the difference between a digital certificate and a public key?
    The digital certificate can be used by entities to share their public key in a way that can be authenticated.
    A public key can be used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed data.

  3. What is the most common use case for digital certificates?
    Digital certificates are used in public key cryptography functions; they are most commonly used for initializing secure SSL connections between web browsers and web servers. Digital certificates are also used for sharing keys to be used for public key encryption and authentication of digital signatures.

  4. What is a certificate authority?
    CAs are considered trusted third parties in the context of a PKI; using a trusted third party to issue digital certificates enables individuals to extend their trust in the CA to the trustworthiness of the digital certificates that it issues.

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#540
  1. What is a digital certificate?

Also called a public key certificate, represents the public cryptographic « fingerprint » of a specific owner. It includes the certified public key, owner information, digital certificate metadata, and the issuer’s digital signature.

  1. What is the difference between a digital certificate and a public key?

A public key is a component of a digital certificate.

  1. What is the most common use case for digital certificates?

Cryptographic assurance and data privacy (example: web browsers, web servers)

  1. What is a certificate authority?

It is an entity that is responsible for digital certificate issuance.

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#541
  1. A certificate that cryptographically links ownership to a public key.
  2. Public keys are used for encryption and authentication while Digital certificates cryptographically link the public keys and other information about it’s owner to the owner or entity.
  3. Initializing secure SSL connections between web browsers and web servers.
  4. Trusted third parties that issue digital certificates.
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