Digital Certificates - Reading Assignment

Blockchain Business Course
#442
  1. What is a digital certificate?

Public key cryptography is at the core of encryption, authentication and digital signature

digital signature is another one of those functions, enabled by public key cryptography;

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

Digital certificates share public keys by linking the bearer’s identity, ownership and therefore entitlement to wield the public key

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

Digital certificates are used in data privacy when keys share to encrypt public key and authenticate a digital signature and initialize the web browser and web server connections via SSL

  1. What is a certificate authority?

A digital certificate = public key certificate is issued, authenticated or revoked by t6he issue, the PKI- the Public Key Infrastructure

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#443

  1. Digital certificates are utilized for sharing public keys for encryption and authentication. They cryptographically link ownership of a public key with the entity that owns it.

  2. Public key cryptography can be defined as a private key held by the owner and utilized for signing and decrypting and a public key utilized for encryption of data sent to the key owner or authentication of the certificate holder’s signed data. Meanwhile, the digital certificate enables entities to share their public key in a way that can be authenticated.

  3. Share keys for encrypting and decrypting content and to aid in assuring content has not been altered

  4. CAs are considered trusted third parties.

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#444

1.What is a digital certificate?
A digital certificate or public key certificate is used to ensure who or where this transaction is coming from.
2.What is the difference between a digital certificate and a public key?
Digital certificates are signed digitally, they can’t be trusted. Whereas public keys are generated by an algorithm for signing data, with that key you can confirm the origin.
3. What is the most common use case for digital certificates?
The most common use is to secure SSL connections
4. What is a certificate authority?
It is a third party who delivers the digital certificates.

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#445

  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. a public key is a key used to show encrypted authentication. a digital signature is a combination of public key being certified, metadata relating to digital certificate and a digital signature of the public key that was created by the user.

  3. all major web browsers and web servers use digital certificates 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 of a public key infrastructure. this trusted third party issues digital certificates and enables individuals to extend their trust in the certificate authority to the trustworthiness of the digital certificates that it issues.

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#446
  1. public key certificate
  2. public key is part of a digital certificate, is a component of a digital certificate along side with the digital signature and the metadata that connects them
  3. is used to cryptographically link ownership of a public key with the entity that owns it
  4. CA- certificate authority is a trusted third party in the context of a PKI(public key infrastructure) that is used to issue certificates
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#447

1. What is a digital certificate?
A: A cryptographic link of ownership of a public key with the entity that owns it; a means to share public keys to be used for encryption and authentication.
2. What is the difference between a digital certificate and a public key?
A: The public key is a component of or contained in the digital certificate along with other data.
3. What is the most common use case for digital certificates?
A: Using them for initializing SSL connections between web browsers and web servers
4. What is a certificate authority?
A: The trusted entity, usually a third party, that issues the digital certificates.

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#448
  1. A digital certificate is a essentially a “key” given to an entity or user for any online and offline uses. You can say it a “multi-pass” for either general or specific use; as there are many types.

2.A public key is generated through algorithmic computations and hashing; a digital certificate is “issued” by some kind of higher level or in technical terms a CA - Certificate Authority

3.Most common I can think of are for web browsing. Such as a SSL Certificate.

4.A CA - Certificate Authority is essentially a “3rd party” type of governance that issues certificates to its users, employees, or even to a developer

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#449

A (digital certificate/public key certificate) is used to cryptographically link ownership of a public key with the entity that owns it. They are used for encryption and authentication.

Digital certificates are for sharing public keys which are used for authentication.

The digital certificate enables entities to share their public key in a way that can be authenticated.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.

A Certificate authority are trusted third parties in the context of a PKI (Public Key Infrastructure); 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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#450
  1. A verification that the public key is owned by the party that claims to own it.
  2. A public key is derived from the party’s private keys while a digital certificate is a verification through documentation identifying the public key owner.
  3. Initializing connections between web browsers and web servers (SSL).
  4. A trusted 3rd party that verifies public keys and issues digital certificates.
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#451

Identifies a public key with its owner.

The digital certificate identifies the party that the public key belongs to and the public key itself is used to encrypt data.

“most commonly used for initializing SSL connections between web browsers and web server”

A trusted third party that gives digital certificates.

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#452
  1. A DC encrypts your public key while authenticating it for the other party.
  2. The DC is an encryption of your private key.
  3. Security
  4. Third party that issues digital certificates.
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#453

Answers Digital Certificates

1: What is a digital certificate?
It is a public key certificate which can be uniquely linked to an owner holding the corresponding private key.

2: What is the difference between a digital certificate and a public key?
The digital certificate holds more than the public key. The certificate also contains indetity information about the owner, metadata and a signature of the issuer.

3:What is the most common use case for digital certificates?
Digital signatures are used for securing the connection between the web server and the browser. They are also used for signing and encryption.

4: What is a certificate authority
It is an entity which issues digital certificates. The entity is a trusted third party, which leads to a higher trustworthiness of the issued certificates in contrast to just issue your own certificate.

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#454

1 What is a digital certificate?
It is cryptogphically links 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 initializes the secure SSL connection between web Browser and server. A public Key is for data encryption and authentification.
3 What is the most common use case for digital certificates?
The digital certificate provides assurance that published content has not been modified by unauthorized entities.
4 What is a certificate authority?
A trusted third party in the public key infrastructure that issues digital certificates.

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#455

  1. A digital certificate is a form of digital identification that is provided by a trusted third party organization called a Certificate Authority (CA) to a user. Digital Certificates prove that a certain public key belongs a person. It solves the problem of someone being impersonated online.

  2. A public key is used online to allow for private communication online through encryption. A digital certificate links the public key to the owner of that public key - this gives people confidence that they are interacting with the person that they are intending to interact with. It’s like a cryptographic ID card.

  3. For communication between browsers and servers + signing & decrypting messages.

  4. A Certificate Authority is an organisation that distributes Digital Certificates. Usually a trusted third party, but sometimes a CA can be formed within an organization.

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#456

  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 links ownership of a public key with the entity that owns it. The public key is included in the digital certificate, which holds more info like metadata and the digital signature of the public key.

  3. What is the most common use case for digital certificates?
    They are used to assure a a secure connection between a web browser and the holder of the web domain through the SSL protocol

  4. What is a certificate authority?
    Certificate authorities (CA´s) are trusted third parties that issue digital certificates

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#457

  1. Public key certificate which purpose is to link ownership to public key

  2. Public keys secure data and are only one component of digital certificate. Digital certificate shares those public keys

  3. To provide secure SSL connections between web browsers and web

  4. Third party issuers of digital certificates

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#458

A digital certificate is a way to cryptographically link the ownership of a public key with its owner.

The digital certificate is not derived from a private key, it’s issued and signed by someone who is trusted within the network, (with the hashing method).

Mainly used by web pages to ensure that the published information hasn’t been modified.

Third party who can issue certificates.

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#459
  1. What is a digital certificate?
    A DC is used to cyptographically link the ownership of a public key with or to the entity that owns it.
  2. What is the difference between a digital certificate and a public key?
    DCs are for sharing public keys to be used for encryption and verification. DCs include the public key, owner info, other metadata, and a digital signature of the creator.
  3. What is the most common use case for digital certificates?
    For initializing SSL connections between browsers and webservers.
  4. What is a certificate authority?
    A trusted 3rd party that issues digital certificates
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#460

1. What is a digital certificate?
A digital 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 and authentication.

2. What is the difference between a digital certificate and a public key?
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. What is the most common use case for digital certificates?
They are most commonly used for initializing secure SSL connections between web browsers and web servers. Digital certificates 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. What is a certificate authority?
Certificate Authorities 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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#461
  1. What is a digital certificate?
  • encrypted signature of the ownership of a public key
  1. What is the difference between a digital certificate and a public key?
  • a certificate defines the ownership and a public key validates the ownership
  1. What is the most common use case for digital certificates?
  • between a webserver and a browser
  1. What is a certificate authority?
  • an entity/party who issues the certificates
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