Digital Certificates - Reading Assignment

[HereWeGo]

1. A tool used to cryptographically link ownership of a public key with the entity that owns it. It’s also referred to as ‘public key certificate’. Digital certificates are for sharing public keys to be used for encryption and authentication.

2. A digital certificate includes the public key being certified, identifying information about the entity that owns the public key, metadata related to the digital certificate and a digital signature of the public key created by the issuer of the certificate.
   A public key is the cryptographic data used when performing cryptographic functions.

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

4. A certificate authority (CA) is an organization that maintains its own PKI to issue certificates for its own internal use. CAs are considered trusted third parties in the context of a PKI as 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.

[Duende]

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. The distribution, authentication and revocation of digital certificates are the primary purposes of the public key infrastructure (PKI), the system by which public keys are distributed and authenticated.
3. 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.
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.

[T.O.B]

What is a digital certificate?
Also called a public key certificate, it is used to cryptographically connect the owner of a public key with and the entity that owns it, or encryption verification of the digital certificate to a particular entity.

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.

What is the most common use case for digital certificates?
Initializing secure SSL connections between web browsers and web servers

What is a certificate authority?
A trusted entity that issues digital certificates

[Dwayne]

What is a digital certificate?

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.

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

Public keys are used to encrypt the message and the digital certificate is the signature that certifies the public key belongs to the verified entity.

What is the most common use case for digital certificates?

SSL certificates are a very common implementation of digital certificates.

What is a certificate authority?

Certificate authority is the entity that issues digital certificates.

[Edvins]

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 encryption and authentication.
2. What is the difference between a digital certificate and a public key?
	○ A public key is a large numerical value that is used to encrypt data.
	○ 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?
	○ Digital certificates are used in public key cryptography functions; 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.
4. What is a certificate authority?
	○ The vast majority of digital certificates are issued by a certificate authority (CA). 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.

[Ignacio]

1. What is a digital certificate?
   Is a certification protocol that uses cryptography to validate the accreditation of an individual, or group of individuals issued by an institution. It works because the institution at hand has a collection of approved certificates and their correspondent beneficiaries as a form of encrypted public keys. The information can be easily shared.

2. What is the difference between a digital certificate and a public key?
   A digital certificate is in theory a public key, but this key is linked as a form of metadata on the issuers blockchain.

3. What is the most common use case for digital certificates?
   The most common uses are in web browsers. Where, the content of pages has to be shared across the web with high assurance that the original information is authentic.

4. What is a certificate authority?
   A third party entity.

[EdTunn]

What is a digital certificate?
It is a public key certificate which 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?
A digital signature will blind public keys to people or other entries
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?
It gives a number of certificate services to users of a blockchain

[MARTIS]

1.) Digital certificates are public key certificates, that cryptographically link ownership of a public key with the owner.
2.) The digital certificate is the system by which the public keys are authenticated.
3.) They are most commonly used for initializing secure SSL connections between web browsers and web servers.
4.) CA’s are trusted third parties in the context of a PKI.

[JdRoberts]

1. A public key certificate used 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, while public keys are responsible for the distribution, authentication and revocation of digital certificates
3. They are most commonly used for initializing secure SSL connections between web browsers and web servers.
4. Trusted third parties in the context of a PKI

[LioC]

1/ = public key of sender +metadata+digital signature of sender,
delivered by central authority PKI;

2/ public key is used in the encryption of message; allows then message receiver to authenticate sender (as a recipient of public key from PKI)

3/ between browsers and servers to provide authentication of message senders to receivers
4/ an authority, independent from sender and receiver

[Vikthor]

1. What is a digital certificate?

A Proof of authencity of an public key for example

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

the public key is for hashing communication, ethe digital certificate is a proof.

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

you can proofe that content is not changed. (E-mail, contracts, data,…)

4. What is a certificate authority?

an authority which check, confirm and give certificates on entities.

[Daniel_Jude]

1. Digital certificate is a method to cryptographically link ownership of a public key with the entity that owns it.

2. The difference between a digital certificate and a public keys is that a digital certificate is includes the public key as well as other information about the user.

3. Digital certificates are usually used to create secure connections between clients and servers.

4. Certificate authority can issue digital certificates but they are mostly made up of trusted
   third party’s.

[muradawad]

1. Client Certificates or Digital IDs are used to identify one user to another, a user to a machine, or a machine to another machine. One common example is emails, where the sender digitally signs the communication, and the recipient verifies the signature. Client certificates authenticate the sender and the recipient.

2. The public key is public and does not need to be kept confidential. A digital certificate is a digital file generated after the CA verifies the identity of a certificate applicant and signs the basic information and public key of the applicant with the root certificate of the CA (equivalent to stamping the official seal of the CA). A digital certificate is a public key authenticated by the CA. Therefore, a digital certificate and a public key are both public. A digital certificate is a public key authenticated by the CA. A private key is generated by the certificate holder locally or by a trusted third party. The certificate holder or a trusted third party can keep the private key.

3. To assure that the content has not been changed by an unauthorized person.

4. CAs are considered trusted parties.

[Ana.Barreto]

[VinceP]

1. Digital certificate a.k.a. Public key certificate is used in cryptography to authenticate the ownership of a public key by a user or entity. Digital certificates help identify ownership of the shared public key, link the metadata link the metadata associated to the public certificate and the digital signature. IN very simple terms is an identifier of the web credential of an user used for self signature and message encryption.
2. digital signature verifies the authenticity and source of a particular document and enables entities to share their public keys, whereas digital certificate creates an identity of a website and also increases its trustworthiness.
3. digital certificate is commonly used by web browsers and web servers to prove the authenticity of a content and prove that it has not been altered by unauthorised user.
4. issues digital certificates and acts as a trusted third party

[TeknoMu]

1. What is a digital certificate?
   It´s a mean to digitally and cryptographically link an owner to a digital content. It works by sharing public keys for encryption and authentication
2. What is the difference between a digital certificate and a public key?
   The digital certificate authenticate and distribute the public key.
3. What is the most common use case for digital certificates?
   To initialise secure connections client/server, ie, user authentication VPNs, TLS
4. What is a certificate authority?
   It is a trusted third party that emit digital certificate

[William_M]

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? The public key is part of the digital certificate and contains the cryptographic data. The digital certificate contains the public key and the information for the entity that owns the certificate.
3. What is the most common use case for digital certificates? SSL connections between browsers and servers.
4. What is a certificate authority?trusted third parties that are authorized to issue certificates

[AKotell]

Digital Certificates - Reading Assignment :

Q1: What is a digital certificate?
A: A digital certificate, also known as a public key certificate is for sharing public keys used for encryption and authentication.

Q2: What is the difference between a digital certificate and a public key?
A: The difference between a digital certificate and a public key is that the digital certificate is used to cryptographically link ownership of the public key with the entity that owns it. The public key being the data personal to the owning entity.

Q3: What is the most common use case for digital certificates?
A: The most common use case for digital certificates is being used for initialising secure SSL connections between web browsers and web servers.

Q4: What is a certificate authority?
A: Certificate authorities are considered trusted third parties in the context of a Public Key Infrastructure (PKI).

[Dexda]

1. a digital certificate links ownership to the public key with the entity that owns it. They are used for sharing public keys for encryption and authentication.
2. It holds information to the certified public key, the entity that owns it, a digital signature and the metadata relating to the digital certificate.
3. It’s mostly used for websites to make sure that content hasnt been modified by an unauthorized entity.
4. Issues digital certificates.

[MBF-Lifestyle]

1: Digital Certificate is a cryptographic link that connects the public key to the owner.
2: A Digital Certificate includes the public key and enables sharing in an authentic manner, and a public key is the cryptographic info/data that is used in the cryptographic function.
3: Digital Certificates are used to retrieve the public key so as to confirm ownership.
4: Certificate Authority : Is the certificate that provides the trust/authenticity.