Digital Certificates - Reading Assignment

[Buddboy1]

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.

[Navi]

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.

[Hani]

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.

[ZAK]

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.

[tornalis]

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

[Arne_GE]

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.

[Crofty]

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

[Bill]

@donald77

• Digital certificate is used to link ownership of a public key to an entity that owns it.
• Digital certificate enables sharing of public key and that can be authenticated. Public key is used for signing and encrypted messages that can only be read by a private key holder. Both keys belong to the same entity.
• To assure that the content has not been changed by an unauthorized actor and to share keys for encryption and decription.
  4.CA stands for Certified Authority and represents a trusted third party.

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.

[dodikk]

• 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.

[coltaalex]

1.public key, to link an online entity with the specific private key.
2. Digital certificate includes in it the public key as well, providing information regarding that public key ownership.
3. we are using it everyday when we browse the internet, it creates trusted/genuine connections between web browsers and web servers
4. CA it is usually a third party organization, that issues/manages digital certificates

[Alotoffixins]

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 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 digital certificate enables an owner to share their public key in a way that can be authenticated. A public key is used to encrypt the data being sent to the owner.

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?
   CAs are trusted third parties that issue certificates in the context of a PKI.

[davidnachman]

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. 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 digital certificate links ownership of a public key with the entity that owns it.The public key is included in the digital certificate.
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?
   Certificate Authorities 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 Certificate Authority to the trustworthiness of the digital certificates that it issues.

[Valdis]

1. What is a digital certificate?
   A key that links the ownership and the owner.
2. What is the difference between a digital certificate and a public key?
   A digital certificate is an autentification tool and container that contains the public key being certified and shared.
3. What is the most common use case for digital certificates?
   With my IT emphasis of interenet browsing it seems to be the SSL digital certificate for websites… It guarantees that the website is geniune instead of phishing.
4. What is a certificate authority?
   An independent 3rd party that issues digital certificates. It would also be the company itself if it is the likes of bank or similary serious global entity.

[FaierPlay]

1. What is a digital certificate?
   Also known as a public key 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?
   A digital certificate contains the public key and other information related to the public key owner. The public key is used as an identifier in who has sent/received a transaction and is also used used to encrypt/decrypt information that was sent.

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 CA is a third party organization that can issue digital certificates using its own PKI

[cme]

1.What is a digital certificate? A: where one certify the source of digital data.

2.What is the difference between a digital certificate and a public key? A: the certificate includes the public key and a signed publickey also. Then if you trust the certificate you can use the publickey to encrypt and send your digital data back to the owner of the publickey.

3.What is the most common use case for digital certificates? A: client Web-browser/web-server secure communication (a website with a lock symbol) makes you trust that digital data shown come from that webserver and not from a man-in-the-midle atack.

4.What is a certificate authority? A: It is a trusted Entity where on can get distributed trusted digital certificates.

[MuadDib]

1. What is a digital certificate?
   PKI. A cryptographic piece of code acting as a unique signature by a user or an ID to identify the user or his authority to read content, always on.

2. What is the difference between a digital certificate and a public key?
   A Public key is just a public address to identify a user - ID, but on the back of which is a private key to sign = signature. Public key can then be used to encrypt a transaction or it’s signature in specific way tied to the user.
   Digital certificates are more broad. They can identify as little as the user domain and right to access a content or a website, to as much as ownership of the domain, proving their identity, metadata about the certificate, via official ways of recognised 3rd parties .

3. What is the most common use case for digital certificates?
   To prove the content of the website or otherwise available content is original, has not been altered, tampered with. e.g. Website SSL.
   But also to identify a person either via their signature or public key or other identifier that the certificate ties to their identity. Digital certificates or public keys also to allow encryption of communication tied to the specific party.
   Typically used in communication not visible to the user, between the website and the hosting server.

4. What is a certificate authority?
   3rd party issuer of certificates, a CA, is a trusted authority like the post office or police or Ministry of interior in case of Certified Electronic Signatures issued to people who want to sign docs digitally.

[ProfessorHODL]

1. What is a digital certificate?

A digital certificate is used to cryptographically connect ownership of a public key with whoever owns it.

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

A digital certificate includes the public key being certified. However, it also includes 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?

Securing connections between web browsers and web servers is their most common use case.

4. What is a certificate authority?

CA’s are thought of as trusted third parties in the Public Key Infrastructure landscape.

[alb4ch]

What is a digital certificate?

• Is a piece of information that cryptographically links ownership of a public key with the entity that owns it.
  What is the difference between a digital certificate and a public key?
• A public key itself is not a digital certificate. Whilst a digital certificates contains not just only information about the public key being certified but metadata andn a digital signature.

What is the most common use case for digital certificates?

• Innitialize secure SSL connection between web browsers and web servers. And also, for sharing keys to be used for public key encryption and authentication of digital signatures.

What is a certificate authority?

• Is a trusted entity that issues digital certificates.

[Anthony]

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?
3. 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.
4. What is the most common use case for digital certificates?
   SSL between browsers and web.
5. **What is a certificate authority?
   Most digital certificates are issued by a certificate authority. CAs are considered trusted third parties.

[MichaelGolpe]

1. An authentication to confirm a public key to its rightful owner.
2. A public key is a numerical value that encrypts data. The digital certificate contains this key, metadata, digital signature, and identification.
3. Digital Certificates are most commonly used in securing ssl connections between web browsers and web servers.
4. A trusted third party that ensures the certificates can be trusted by extension of the parties trust in the Certificate Authority.