Digital Certificates - Reading Assignment


#21

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

In cryptography, a public key is a large numerical value that is used to encrypt data. The key can be generated by a software program, but more often, it is provided by a trusted, designated authority and made available to everyone through a publicly accessible repository or directory.

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?

They are most commonly used for initializing secure SSL connections between web browsers and web servers.

What is a certificate authority (CA)?

CAs are considered 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.


#22

1. What is a digital certificate?
It is a public key certificate which cryptographically links the ownership of the public key to the entity that owns it.
2. 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.
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.


#23
  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 include the public key being certified, identifying information about the entity that owns the public key, metadata relating to the digital certificate.

  3. What is the most common use case for digital certificates?
    It add trust, integrity and privacy

  4. What is a certificate authority?
    A trusted third party entities provider of digital certificates.


#24
  1. What is a digital certificate?
    A digital certificate is used to link ownership of public keys tot he entity that owns it and for sharing public keys to used for encryption and authentication. they are made up of
    a) The public keys being certified
    b) Identifying info about the owner of the key
    c) Metadata relating to Digital Certificate
    d) Digital Signature of public key created by the issuer

  2. What is the difference between a digital certificate and a public key?
    A digital certificate is what links the public key to its owner

  3. What is the most common use case for digital certificates?
    Initiating secure SSL connections between web browser and web servers to assure the integrity of the published content.

  4. What is a certificate authority?
    A third party issuer of digital certificates.


#25
  1. What is a digital certificate?
    • a public key certificate is an electronic document used to prove the ownership of a public key
  2. What is the difference between a digital certificate and a public key?
    • the public key is used for encryption, while the certificate is used for verifying the ownership of the key
  3. What is the most common use case for digital certificates?
    • for protocol encryption such as SSL/TLS, commonly used for websites, email communications, etc.
  4. What is a certificate authority?
    • a trusted 3rd party who issues digital certificates

#26
  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. Digital certificates are for sharing public keys to be used for and authentication.

  2. What is the difference between a digital certificate and a public key?
    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. 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?
    a certificate authority is able to issue a digital certificate.


#27
  1. A digital certificate is a way of linking a private key with the owner of that key using cryptography.

  2. A digital certificate hold the data of a private key wile a private key is used to encrypt the transaction

  3. SSL certificates between a browser and a web-server is very well know digital cert implementation

  4. Third party authority that can be trusted for the for the issuance of certificates


#28
  1. A digital certificate links ownership of a public key to an entity that owns it.
  2. A digital certificate enables sharing of public key that can be authenticated. A public key is used for signing messages that can only be read by a private key holder. Both keys belong to the same entity.
  3. To assure that the content has not been changed by an unauthorized actor and to share keys for encryption and decryption.
    4.CA stands for Certified Authority and represents a trusted third party.

#29
  • What is a digital certificate?

A way to transfer public key. Contains both a key and its metadata. Signed by a digital signature by the certificate authority.

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

Key is just the data while a certificate is signed. So the data inside a certificate can be trusted if the signature is correct and the authority has not been compromised.

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

HTTPS connection trust verification.

  • What is a certificate authority?

A trusted organization issuing the certificates.