Digital Certificates - Reading Assignment

[tchel]

• What is a digital certificate?
  A public key certificate 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.

• What is the difference between a digital certificate and a public key?
  Public key is a destination address of sorts, not much else. Digital Certificate has lots of data (public key being certified, ID of information about the entity that owns the private key, metadata, a digital signature of the public key.

• What is the most common use case for digital certificates?
  To prove data is authentic from the expected publisher and not modified

• What is a certificate authority?
  A trusted 3rd party

[Ozarkshrub]

1. What is a digital certificate?
   A. A digital certificate proves identity and certifies that the people/computers you are dealing can be trusted to be genuine

2. What is the difference between a digital certificate and a public key?
   B. Public keys are part of the encryption that two parties use to send information that needs to be verifiable and genuine. Digital signatures are part of the public key infrastructure.

3. What is the most common use case for digital certificates?
   C. Domain validation, e-commerce (credit/debit), signing e- documents

4. What is a certificate authority?
   D. Certificate authorities are trusted 3rd parties who issue digital certificates.

[Restford]

1. Link between public key and owner of that key. Used for sharing public keys and for authentication
2. The public key is what is used with hashing in order to encrypt the data. In public key cryptography the generated digital signatures can be verified using the public key. Digital certificates are themselves signed digitally and should not be trusted unless the signature can be verified.
3. Web browsers and servers mainly use them to assure that the content has not been modified or tampered with.
4. An authority that issues digital certificates. A trusted 3rd party.

[TuomoP]

@filip

• What is a digital certificate?
  It’s used to cryptographically link ownership of a public key with the owner.
• What is the difference between a digital certificate and a public key?
  Digital certificates include the public key that is being certified, also information about the owner and metadata.
• What is the most common use case for digital certificates?
  Most commonly used to secure SSL connections between web browsers and servers.
• What is a certificate authority?

'Trusted third parties

[pmgoff]

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

2. What is the difference between a digital certificate and a public key?
   A digital certificate share public keys and are used for authenticating public keys and all data associated with them. A public key is used to encrypt authentication data that is then verified by the certificate.

3. What is the most common use case for digital certificates?
   Common use cases for digital certificates are used in encrypting important data such as banking and credit card processing, domain and website authentication, securing email and docusigining, and router wifi applications.

4. What is a certificate authority?
   A “CA” is a 3rd party that enables individuals to extend their trust because they verify for the user that the digital certificates are authentic.

[Vinny]

1. What is a digital certificate?
   A digital certificate is used to link the ownership of a public key with the entity that owns that public key.
2. What is the difference between a digital certificate and a public key?
   digital certificates has more information then just a public key. a digital certificate, usually contains info, like the name of the issuer, or other info about the entity that owns the public key
3. What is the most common use case for digital certificates?
   Initialising secure socket layer connections betweem web and web servers
4. What is a certificate authority?
   The issuing body of the digital certificates

[rishibehl4]

1. It is a file or electronic password that proves the authenticity of a user, server, or device through cryptography and public key infrastructure (PKI).

2. A digital certificate cryptographically links the ownership of a public key with the entity that owns it. On the other hand, a public key is used to decrypt the digital signature to ensure that it corresponds with a user’s private key.

3. The most common use case for digital certificates is to ensure that users or entities involved are validated and authorized for the safety and privacy of information.

4. CA is the authority that issues digital certificates to a requested authority. It is responsible to keep the internet traffic secure.

[cYnOm]

1. A digital certificate, 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.
2. A digital certificate includes a public key and a declaration of the person who owns it. It is the cryptographic data that is used when performing cryptographic functions
3. To link the public key to the owner that can be verified and authenticated. SSL certificate for web browsers and servers to certify content.
4. A trusted 3rd party who issues digital certificates.

[kyliemerk]

Hello everyone!

1. What is a digital certificate?
A digital certificate is also known as a public key certificate and 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 uses a public key to add a layer of security by having key pairs (one private key held by the owner and a public key that can be used for encrypting data sent to the public key owner) to authenticate the certificate holder’s signed data.
3. What is the most common use case for digital certificates?

• Credit and debit cards use chip-embedded certificates tied to businesses and bank
• Digital payment companies
• Websites
• Electronic document signing
• Cable modems to help prevent theft

4. What is a certificate authority?
Trusted third parties in the context of PKI, of whom issue digital certificates.

[ksmith78]

1. What is a digital certificate?

They link public keys to entities that own them.

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

A digital certificate consists of a few components. The public key is one of the components of the certificate

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

Initializing secure socket layer connections between browsers and web servers.

4. What is a certificate authority?

A trusted party that issues digital security certificates.

[A_Olson]

1. Digital certificated are used to cryptographically link ownership of a public key to the entity that owns it.

2. A public key is only one of the few components that make up a digital certificate. Other components are the metadata that describes the certificate, the identifying information about the entity that owns the public key, and a digital signature (private key) that actually unlocks access to the public key.

3. Digital certificates have many uses, but they are mainly used to providing cryptographic assurance of financial transactions and data privacy ( of emails, electronic signatures, and accessing databases).

4. They are trusted 3rd parties that issue most digital certificates.

[Den_Wal]

1. What is a digital certificate?
   A DC is used to cryptohraphically link ownership of a public key with the owner.

2. What is the difference between a digital certificate and a public key?
   DC include the public key that is being used for certification, identifying information about the owner, metadata relating to the DC and digital signature. The public key does not own all these aspects, except for the information about itself.

3. What is the most common use case for digital certificates?
   Digital certificates are mostly used by web browsers & servers to provide assurance that published content has not been modified by unauthorized actors & for sharing the keys for encrypting & decrypting web content.

4. What is a certificate authority?

Third party issuer of digital certificates.

[Manuwebdevelopment]

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.

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 the certificate issuer created.

3. Digital certificates are used in public key cryptography functions most commonly for initializing Secure Sockets Layer (SSL) connections between web browsers and web servers. Digital certificates are also used for sharing keys used for public key encryption and authentication of digital signatures.

4. A Third party trusted entity.

[J_Ri]

The link to the article does not work… Can someone send me another link?

[thecil]

Hey @J_Ri, hope you are ok.

you mean this link from the lesson right? https://www.techtarget.com/searchsecurity/definition/digital-certificate

It does works for me, maybe try to open it with another browser.

Carlos Z

[thenode369]

1. What is 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, often used to certify access of a user or machine on to the owners system.

2. What is the difference between a digital certificate and a public key?
   A digital certificate is a public key that can be shared between entities for authentification for systems access, as opposed to a public key that is paired with a private key of the owner for access to a wallet for example

3. What is the most common use case for digital certificates?
   Often used to certify access of a user or machine on to the owners system, providing assurance that data is not able to be accessed by unauthorized entities

4. What is a certificate authority?
   This is a centralised authority that issues certificates as a co-signer to be considered as a trusted 3rd party

[J_Ri]

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.

2. Digital certificates include public keys (it’s not on the same level). The digital certificate enables entities to share their public key so it can be authenticated.

3. Most common use cas is the initialization of Secure Sockets Layer ([SSL] connections between web browsers and web servers. It provides assurance that published content has not been modified.

4. Certificate Authorities are third parties that issue digital certificates.

[J_Ri]

It worked with Chrome, thanks

[Emmerich]

1. A digital certificate is a digital proof that you are who you say you are, more specifically, that you are indeed the owner of the public address that you provide.
2. A digital certificate is an encryption of a user’s details and the user’s public key. So the one contains an encryption of the other one.
3. Identity proofing
4. It is a third party outsider that issues and maintains digital certificates.

[DesireeC]

1 Its an identity authenticator that encrypts information with a pair key system to assure privacy of data.
2 The public key is part of the digital certificate. It can be shared to authenticate the certificate to others.
3 On monetary transactions, between web pages and servers, on signing of digital contracts.
4 The trusted third parties that confirms de authenticity of the certificate.