Digital Certificates - Reading Assignment

Blockchain Business Course
#602
  1. Digital certificates also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it.
  2. Digital certificates include 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. Public key cryptography depends on key pairs; one a private key to be held by the owner and used for signing and decrypting.
  3. The most common use case for digital certificates is for initializing secure SSL connections between web browsers and web servers.
  4. Certificate authority’s 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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#603
  1. Digital certificates are things that are used to link ownership of a public key with the dude that owns it.
  2. Public keys are used to decrypt data while digital certificates are used to provide assurance that the data has not been changed.
  3. Digital certificates are mostly used to initialize ssl connections between web browsers and web servers.
  4. A certificate authority is a trusted entity that creates digital certificates.
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#604
  1. What is a digital certificate?
    It is a public key certificate that verifies the ownership of the public key with who owns it
  2. What is the difference between a digital certificate and a public key?
    The public key is one of the items linked in a digital certificate. The digital certificate enables the sharing of the public key
  3. What is the most common use case for digital certificates?
    To ensure that what is published on websites has not been modified by unauthorized users.
  4. What is a certificate authority?
    The third party trusted with the issuance of digital certificates
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#605

1 - A digital certificate links ownership of a public key with an owning entity

2 - 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.

3 - The most common use case for digital certificates is to validate that a given entity sent the data in question and that the data has not been changed (hash comparison). A common use case is also to initiated an SSL connection between client and server.

4 - A certificate authority is a trusted body that issues digital certificates

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#606
  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. Digital certificates are for sharing public keys to be used for encryption and authentication.
    Public key is digital signature of unique user to sign a transaction.
  3. 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. Certificate authoritys (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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#607

  1. A digital certificate is a public key certificate used to cryptographically link ownership of a public key to the entity who owns it.

  2. A public key is used for encryption of data while a digital certificate enables entities to share their public key so that it may be authenticated.

  3. Digital certificates are often used to sign data.

  4. A certificate authority is an organization that issues digital certificates.

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#608

  1. What is a digital certificate?
    Digital certificates include the public key being certified, identifying information about the entity that owns the public key.

  2. What is the difference between a digital certificate and a public key?
    The digital certificate is used to cryptographically link ownership of a public key with the entity that owns it. Digital certificates are for sharing public keys to be used for encryption. 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?
    The digital certificate enables entities to share their public key in a way that can be authenticated.

  4. What is a certificate authority?
    CAs ( certificate authority) are considered trusted third parties in the context of a PKI (Public key infrastructure).

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#609

  1. A digital certificate is a proof that verifies the owner of a public key is who they say they are. Digital certificates (or public key certificates) can be used to encrypt and authenticate data.

  2. A digital certificate will include the public key, various metadata relating to the certificate, and a digital signature of the public key, from the issuer of the certificate.

  3. The most common use case for digital certificates are secure SSL certificates on web pages. These certificates initialise an SSL connection between the web browser and web server.

  4. A certificate authority is a third party who issues digital certificates. While an entity may issue its own digital certificates, the vast majority are issued by certificate authorities. A digital certificate issued by a third party means stakeholders only have to extend their trust to the third party issuer, instead of ones made in-house.

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#610
  1. A digital certificate in also called a public key certificate:
  • identifys information/metadata about the entity that owns the public key &
  • includes the digital signature of the private key created by the issuer of the certificate
  1. A digital certificate identifies information about the entity that owns the public key.
    It is a way of distribution of the public key. As they are signed digitally, they should not be trusted unless the signature can be verified.

A public key is a part of the public-private key pair in public key cryptography where:

  • the private key is held by the owner & used for signing & encrypting
  • the public key is used for decryption of data sent to the public key owner or authentication of the cerificates holder’s signed data
  1. Public key certificates most common use cases:
  • enable entities to share their public key in a way that can be authenticated
  • is used to cryptographically link ownership of a public key with the entity that owns it
  • are used by all major web browsers & web servers to provide assurance that published content has not been altered by any unauthorized actors
  • share keys for encrypting & decrypting of web content
  • are used both online & offline for providing cryptographic assurance & privacy of data
  1. The CA - certificate authority is a trusted third party of the public key infrastructure that issues a digital certificate.
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#611
  1. What is a digital certificate?
    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?
    a digital cert. includes the public key, identifying information about the entity that owns the public key, metadata relating to digital cert and a digital sig. of the public key. Digital certifcates enable entities to share public keys in a way that can be authenticated.
  3. What is the most common use case for digital certificates?
    initializing secure SSL connections between web browers and web servers
  4. What is a certificate authority?
    Certificate Authority (CA) are trusted third parties that issue digital certificates
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#612
  1. A digital certificate is a public key used for encryption and authentication.
  2. A pubilc key depends on a private key for authentication where a digital certificate shares a pbulic key between entities for authentiaction.
  3. SSL
  4. A trusted third party that issues digital certificates.
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#613

1.It is used to cryptographically link ownership of a public key with the entity that owns it.
2.A digital certificate shares public keys and a public key encrypts data.
3.To assure that the content has not been changed by an unauthorized actor and to share keys for encryption and decription.
4.CA’s are Trusted third parties in the context of a PKI (public key infrastructure) that can issue digital certificates.

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#614

  • What is a digital certificate?
    Basically, a public key. This is used to verify (cryptographically link) ownership or a public key to the entity that owns it.

  • What is the difference between a digital certificate and a public key?
    Digital certificate contains the public key, additional information such as the issuer, what the certificate is supposed to be used for, and other types of metadata. A certificate is itself signed by a certificate authority (CA) using CA’s private key. This verifies the authenticity of the certificate.

  • What is the most common use case for digital certificates?
    Used in public key cryptography functions such as initializing secure SSL connections between web browsers and web servers

  • What is a certificate authority?
    Trusted third parties that issue digital certificates

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#615

A digital key also known as a public key certificate links the owner of a public key with the entity that owns it.

A digital certificate issued by a third party links the ownership of the public key to the entity that owns it.
The key is for encryption and the certificate verifies ownership of the key.

It insure that the content has not been tampered with, it create trust between the server and the browser.

A Certificate Authority is a trusted third party in the Public Key Infrastructure (PKI).

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#616

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

  2. Digital certificates are for sharing public keys to be used for encryption and authentication.

  3. They are used by all major 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.

  4. Trusted third parties in the context of a PKI.

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#617

What is a digital certificate?

Digital certificates are electronic credentials used to cryptographically link ownership of a public key with the owner of it.

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

The difference between a digital certificate and a public key is that the latter is used for encryption of the data, while the first includes both public and private key to link the public key with its owner.

What is the most common use case for digital certificates?

The most common use case is providing cryptographic assurance and privacy of the data. They are 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 Certificate Authority (CA) are third parties, trusted entities that issue digital certificates.

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#618

What is a digital certificate?-> A file that contains public key and metadata about the owner of that key

What is the difference between a digital certificate and a public key?–> Certificate has the additional metadata

What is the most common use case for digital certificates?–> Encrypting data so that only the owner of the public key can see the information, use it to ensure secure connection to web servers.

What is a certificate authority?–>A trusted authority who can issue Digital certificates for entities. It enables for trust to be scaled as they sign the digital certificate with their public key, ensuring the authenticity of the certificate

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#619

  1. What is a digital certificate?
    A digital certificate, or public key certificate, links a public key to its owner using cryptography and provides a secure way to share the public key, the data associated to the public key owner and a digital signature.

  2. What is the difference between a digital certificate and a public key?
    A public key is a unique id provided to an indvidual and a digital certificate provides a secure way to share public keys between two entities for digtial signatures and authentication.

  3. What is the most common use case for digital certificates?
    Digital certificates are most commonly used to establish trusted connecdtions between web browsers and web servers.

  4. What is a certificate authority?
    A certificte authority (CA) is a trusted third-party entity that enterpises and government authorities can use for their public key infrastructure system to issue and authenticate public keys.

#620
  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?
    A digital certificate holds more information
  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.
  4. What is a certificate authority?
    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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#621

Digital Certificates Reading Assignment Answers

  1. Digital Certificates are used to cryptographically link ownership of a public key with its entity owner.

  2. Public keys depend on key pairs, one private to be used by its owner for signing and decrypting, while the other public used for encryption of data. Digital certificates hold a broader set of data. They enable the sharing of the public key and can be authenticated.

  3. Digital Certificates are most commonly used for initializing secure SSL connections between web browsers and web servers. They’re also used for sharing keys to be used for public key encryption and authentication of digital signatures.

  4. CA’s are a trusted third party in the context of PKIs that issue digital certificates.

1 Like