Digital Certificates - Reading Assignment

Blockchain Business Course
#142
  1. It is a cryptographic way of authenticating an entity.
  2. Public key is part of digital certificate concept. Public key is used to verify the owner of the private key.
  3. To prove that certain content belongs to given entity and that it has not been modified in the way.
  4. It’s an entity that is trusted by the majority therefore all certificates issued by CA are trusted as well.
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#143
  1. It is a way of digitally proving ur identity/ownership of said public key
  2. The digital certificate is a way of proving ownership of a public key, the public key can for example be used to send you crypted information, the only way to decrypt it would then be with a digital certificate
  3. Mostly for establishing a secure SSL connection between browser and web server
  4. It is a third-party that should be able to be trusted that verifies the digital signatures
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#144

What is a digital certificate?
It’s also known as a public key certificate and is used to 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?
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.
What is the most common use case for digital certificates?
The most common use case is for initializing secure SSL connections between web browsers and web servers.
What is a certificate authority
CA’s Certificates of authority are considered trusted third parties in the context of a Private 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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#145

  1. What is a digital certificate?
    a public key certificate

  2. What is the difference between a digital certificate and a public key?
    The public key is the hashed private key. The public key can be used for data encryption and digital signature. A digital certificate authenticates and makes possible these 2 uses.

  3. What is the most common use case for digital certificates?
    Initializing a secure SSL connection between web browsers and web servers

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

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#146

i guess you just misspell here sir, nice answer but you probably want to correct that little misspell. :wink:

Carlos Z.

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#147

Thanks for pointing that out.

*The public key is the hashed private key.

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#148
  1. Digital certificate is a method 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. 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. They are most commonly used for initializing secure SSL connections between web browsers and web servers.
    4.Trusted third parties that issue Digital Certificates.
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#149

  1. A digital certificate links a public key cryptographically to its owner.

  2. A public key is used to encrypt data, and public keys are distributed and authenticated by digital certificates.

  3. Initializing secure SSL connections between web browsers and web servers.

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

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#150
  1. What is a digital certificate?

The public key, to link with the specific private key

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

The digital certificate shares public keys and a public key encrypts data

  1. What is the most common use case for digital certificates?
    For initializing secure SSL connections between web browsers and web servers

  2. What is a certificate authority?

An independently trusted third party that issues digital certificates in order to verify the identity of a client or server.

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#151

1. What is a digital certificate?

Quite close sir, but digital certificate is used to cryptographically link ownership of a public key with the entity that owns it.

Public key is nothing more than a cryptographically signature to prove the ownership of a private key, but does not contain any data related to the owner has an authentication process.

If you have any doubt, please let us know so we can help you!
Hope this gives you a clear view of the subject, keep learning! :slight_smile:

Carlos Z.

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#152

  1. What is a digital certificate?
    Links ownership of public key with the entity that owns it.

  2. What is the difference between a digital certificate and a public key? A public key can be issue by anyone, but a digital certificate provide proof through a 3rd party (CA) that the PK can be trusted and belongs to that entity.

  3. What is the most common use case for digital certificates? Website encryption using TLS Protocol. Encyption/Decryption of web content between the website and browser.

  4. What is a certificate authority? A Trusted third party that issues digital certificates (signs them).

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#153

1- Also known as a public key certificate is used for encryption and authentication.
2- Public key cryptography enables a number of different functions, including both encryption and authentication. digital signatures are generated using algorithms for signing of data.
3-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- It’s an authority that issues a digital certificate and it’s usually a trusted third party

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#154

1
A file with information about the owner and his public are linked. They are issued by trusted entities CA.

2
The certification of the ownership of a file can be made only via a digital certificate, via the couple private/public keys the encryption of the file only.

3
Files / messages with signature or ssl encryption of the data transferred from a web server to a browser.

4
Organizations trusted by the community which releases the digital certificates to (evt paying) enquirers.

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#155
  1. It is used to link the ownership of the public key to the one that owns the private key, cryptographically.
  2. Public key is transmitted in digital certificate.
  3. Securing SSL connection between webservers and webbrowsers.
  4. It is a third party that issues digital certificates to increase trustworthiness.
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#156
  • What is a digital certificate?
    Cryptographical verification of public key and owner
  • What is the difference between a digital certificate and a public key?
    Certificate verifies who is the right owner of the public key, while the public key is what’s used for transaction for all to see
  • What is the most common use case for digital certificates?
    Verifying domain with ssl
  • What is a certificate authority?
    A trusted third party whose job is to verify public key ownership
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#157
  1. a public key certificate
  2. digital certificates are signed digitally, in public key cryptography
    digital signatures are generated using algorithms for signing of data
  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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#158
  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 include the public key but also have 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. They are most commonly used for initializing secure SSL connections between web browsers and web servers.
  4. The vast majority of digital certificates are issued by a certificate authority. They 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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#159
  1. What is a digital certificate?
    Link between public key and the owner
  2. What is the difference between a digital certificate and a public key?
    certificate describes the relationship between the key and the entity, public keys are the pairs used for authentication of the relationship and ensuing action
  3. What is the most common use case for digital certificates?
    Most commonly used for initializing secure SSL connections between web browsers and web servers
  4. What is a certificate authority?
    Trusted entity that issue the digital certificates.
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#160

  1. What is a digital certificate?
    A: It 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 certificates are uused to share the public keys of the user and identifying the information of the user and public key is the data and that is saved from the user

  3. What is the most common use case for digital certificates?
    A: initializing secure SSL(Secure Sockets Layer) connections between web browsers and web servers

  4. What is a certificate authority?
    A: A trusted third party to issue digital certificates

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#161
  1. Digital certificate is used to cryptographically link ownership or right of use of a public key with the entity.
  2. A public key is used to sign off a transaction or verify a private key, but does not specify details of the ownership. A digital certificate on the other hand provides additional information about the holder/owner of the public key.
  3. To verify that a transaction or publication has not been manipluted in transit and verify its integrity.
  4. A certificate authority is third party that issues digital certificates based on applicants providing certain information.
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