Digital Certificates - Reading Assignment

Blockchain Business Course
#422
  1. What is a digital certificate?

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

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

The digital certificate is used to identify the entity owning the key and isn’t the key itself. It is however normally signed by a trusted third party issuing the certificate.

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

They are used in setting up SSL/TLS connections for instance for secure websites.

  1. What is a certificate authority?

It is an entity that issues certificates, normally this is the trusted third party.

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#423

  1. What is a digital certificate?
    It is a file that contains info about the person who is requesting it, the certificate authority, the clients public key and a expiration date.

  2. What is the difference between a digital certificate and a public key?
    A public key is used to encrypt a message while a certificate is a file or document vouching that the person is who they say they are.

  3. What is the most common use case for digital certificates?
    It is used to provide a third witness and vouch for someone claiming to be who they say the are.

  4. What is a certificate authority?
    A well known and trusted organization that checks your identity and provides you with a digital certificate.

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#424

Digital Certificates - Reading Assignment

  1. What is a digital certificate?
    A digital certificate is used to cryptographically link ownership of a public key with the entity that owns it. Digital certificate is also called a Public Key Certificate.

  2. What is the difference between a digital certificate and a public key?
    Digital certificates themselves are signed digitally and they should not be trusted unless the signature can be verified.

Digital signatures are generated by hashing; the data gets signed with a one-way cryptographic hash; the result is then encrypted with the signer’s private key. The digital signature incorporates this encrypted hash, which can only be authenticated by using the sender’s public key to decrypt the digital signature, and then running the same one-way hashing algorithm on the content that was signed.

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

  2. What is a certificate authority?
    CA is an entity that is a trusted third party for Public Key Infrastructure. It enables individuals to extend their trust regarding issued digital certificate authenticity.

G.

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#425

Great answers. It’s easy to understand.
All your answers in different assignments are quite good :clap:
Please keep them like that! :nerd_face:

Carlos Z.

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#426
  1. A Digital Certificate is an electronic password that allows a person, organizaion to exchange data securely over the Internet using the public key infrastructure (PKI).
  2. A digital certificate enables entities to share their public key in a way that can be authenticated. The public key is the cryptographic data that is used when preforming cryptographic functions.
  3. 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.
  4. CAs are considered trusted third parties.
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#427

1. What is a digital certificate?
Digital Certificate is used to cryptographically link owner of the public to the entity that own it.

2. What is the difference between a digital certificate and a public key?
digital certificate include the public key being created, identifying info about the entity, metadata about the digital certificate and digital signature. whereas, public key is created from the private key and used to encrypt the data when sending it.

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.

4. What is a certificate authority?
Certified Authority is considered as third party authority that handles Public key infrastructure

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#428

  1. A digital certificate is a certifying cryptographic link between a public key owner and its ownership of this public key.

  2. The difference between a digital certificate and a public key
    A digital certificates shares public keys
    A public key encrypts data

  3. The most common use case for digital certificates is the authentification proof of authenticity of sender and shared content.

  4. A certificate authority is a considered trusted third party which issues valid digital certificates

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#429
  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 keys are used for signing and encrypting, while DC’s enables people to share their public key that can be authenticated
  3. they are most commonly used for initializing secure [SSL] connections between web browsers and web servers.
  4. Is a person that issues digital certificates
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#430

[quote=“filip, post:1, topic:6386”]

  • What is a digital certificate?

A digital Cert links a public key with its owner

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

A digital certificate is a lower grade authority. A public key needs to be hashed and a digital Cert is created by algorithms

  • What is the most common use case for digital certificates?
    Secures connections between third party and web browsers…can show authenticity/ownership of website
  • What is a certificate authority?
    Third party issuers of digital certificates
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#431
  1. What is a digital certificate?
  • It is a public key certificate used to validate an owner of a public key a trusted entity of the certificate.
  1. What is the difference between a digital certificate and a public key?
  • Public keys only encrypt data whereas a digital certificate shares public keys in a in a trusted way
  1. What is the most common use case for digital certificates?
  • to provide secure SSL connections between web browsers and web
  1. What is a certificate authority?
  • A trusted third party (Certificate Authority, CA) providing digital certificates used in Public Key Infrastructure (PKI)
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#432

  • What is a digital certificate?
    It’s a document containing a public key, data about the owner of the public key, and a digital signature that can used to validate issuer of certificate is owner of public key.

  • What is the difference between a digital certificate and a public key?
    Public key is one component of digital certificate. The certificate are maintained by trusted 3rd parties that give assurance the public key is owned by the organisation the certificate claims.

  • What is the most common use case for digital certificates?
    To encrypt information while sending data over the internet.

  • What is a certificate authority?
    A trusted 3rd party that validates and issues certificates.

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#433
  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. It verifies given data e.g identity
  2. What is the difference between a digital certificate and a public key?
    A digital certificate is used to link a given public key to the entity that owns it.
  3. What is the most common use case for digital certificates?
    Digital Certificates are most commonly used for initializing secure SSL connections between web browsers and web servers
  4. What is a certificate authority?
    A certificate authority (CA) is considered a trusted third party 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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#434
  • AKA public key certificate; used to cryptographically link ownership of a public key with the entity that owns it. They are used for encryption and authentication.
  • Digital certificates have more information then public keys.
  • Authentication and Encryption.
  • Trusted Third parties that issues digital certificates.
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#435

  1. What is a digital certificate?
    a digital 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?
    puclic key can be used for encryption of data that is sent to the public key, the digital certificate is used for encryption and authentication of digital signatures

  3. What is the most common use case for digital certificates?
    SSL connection between webservers and web browsers

  4. What is a certificate authority?
    a (trusted) third party that issues certificates

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#436

  1. What is a digital certificate?
    A digital certificate cryptographically ties an entity to ownership of a public key. It shows proof of ownership (of the public key), identifies information about said owner, metadata (about itself) and a digital signature that the owner has created using his private key, which relates to the public key in such a way that those being sent the owners public key and digital signature can verify they stem from the owner’s public key, and can, therefore, verify integrity.

  2. What is the difference between a digital certificate and a public key?
    A public key is the key held by an owner that can be shared publicly, and used to encrypt data sent to its owner, as well as verify that data was really sent by the owner by verifying the public key owner’s digital signature stems from the same private key. A digital certificate’s role is to assign the public key to a certain, trusted owner within a permissioned system, certify that particular key as a legitimate key and identify information about the trusted owner.

  3. What is the most common use case for digital certificates?
    Ensuring published digital content has not been manipulated by external, unauthorised actors, as well as sharing keys that allow en/decryption of web content.

  4. What is a certificate authority?
    A trusted third party that issues digital certificates.

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#437

1.)What is a digital certificate?
A.) 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 for sharing public keys to be used for encryption and authentication. 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.) What is the difference between a digital certificate and a public key?
A.) The certificate ties the digital signature to a data object, while the digital signature secures the data in transit. The digital certificate uses the public key to identify the data’s source, while the digital signature uses the public key to verify the data’s integrity.
3.) What is the most common use case for digital certificates?
A.) Digital certificates are electronic credentials that are used to assert the online identities of individuals, computers, and other entities on a network. Digital certificates function similarly to identification cards such as passports and drivers licenses. Most commonly they contain a public key and the identity of the owner.

4.) What is a certificate authority?
A.) A Certificate Authority is a trusted third party entity that issues digital certificates and manages the public keys and credentials for data encryption for the end user. The responsibility of the CA in this process is to ensure that the company or user receives a unique certificate for an efficient identity authentication. ( THINK A NOTARY AS AN EXAMPLE. a property transaction, involving a mortgage.)

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#438
  1. A digital certificte is used to crypografically link a public key to a private key
  2. the public key is just a private key that has been hashed, the digital certificate link the two things
  3. they are mostly used to initialized connections between public keys operating in a browser trought an SSL ceriticate on the server
  4. A certificate autority is a trusted third part in the PKI that is trusted by different business and gain “autority” in the network
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#439

  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?
    Digital certificates are for sharing public keys to be used for encryption and authentication. 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. What is the most common use case for digital certificates?
    Contributor(s): Peter Loshin

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 for sharing public keys to be used for encryption.
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.
/quote]

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#440

  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 for sharing public keys to be used for encryption and authentication. 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. A digital certificate is used to cryptographically link ownership of a public key with the entity that owns it. Public key cryptography enables a number of different functions, including both encryption and authentication.

  3. Digital certificates 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; 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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#441

  1. What is a digital certificate?
    Is a digital fingerprint that links the public key to the person or organization or entity that owns it.

  2. What is the difference between a digital certificate and a public key?
    Digital certificates verifies the owner of the public key, the public key is generated from a hash function or mathematical equation to secure a transaction or a valuable asset.

  3. What is the most common use case for digital certificates?
    They are used to secure SSL connections and web browsers.

  4. What is a certificate authority?
    A certified authority that issues the certificates where the browser recognizes digital certificates.

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