Digital Certificates - Reading Assignment

[DKSA]

1. Digital certificates are for sharing public keys that link ownership of the public key to the entity.
   2.Digital certificates are for sharing public keys where public keys are used to encrypt and authenticate their data.
2. they are most commonly used for initializing secure SSL connections between web browsers and web servers.
   4.Certificate Authority are considered trusted third parties that issues certificates.

[AliasFresh]

1. What is a digital certificate?

a digital certificate links the private key to its owner.

What is the difference between a digital
certificate and a public key?
cryptography. the certificate is not the actual key. it shows ownership of the key, holds the meta data and digital signature. A certificate is used to share a public key. The public key holds the cryptographic data.

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

If this current site is any indicator im going with https.

4. What is a certificate authority

it is the trusted 3rd party that issues the certificates

[crackingcrypto]

1. What is a digital certificate?

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 signature is a string that is affixed to data to assist with identifying the signer and ensuring its integrity. A digital certificate is itself a file that is used to assert identity and to facilitate encrypted connections.

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

Initializing secure connections between web browsers and web servers

4. What is a certificate authority?

An entity that issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate.

[tanja]

1
digital certificates are linking an entity with a public key. (entity is the owner of this public key).

2
a public key is used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed data.
a digital certificate enables entities to share their public key so they can be authenticated

3
for example used for initializing secure [SSL] connections

4
third parties called certificate authority, trusted party

[Kou]

1. What is a digital certificate?
   A public certificate used to proof ownership of a public key with the entity that owns it. it allows the sharing of public

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

Public key is an asymmetric cryptographic method where a pair of key is created: a private key to kept by the owner to sign and decrypt, and a a public key used to encrypt data sent to the public key owner or authenticate the certificate of the holder’s signed data. The digital certificate enables entities to share their public key in a way that can be authenticated.

3. What is the most common use case for digital certificates?
   To distribute and authenticate public keys and to initialise secure SSL connections between web browsers and servers.

4. What is a certificate authority?
   Trusted third parties that issue digital certificates that extends an individual’s trust in the CA to the trustworthiness of the digital certificate that it issues

[Thaddeus19]

1-What is a digital certificate?
It is a cryptographic method to share the public key and thus be able to validate the author’s content as original

2-What is the difference between a digital certificate and a public key?
The certificate contains the information that associates the user with the public key, and the public key is the cryptographic data that is used to sign or validate the information

3-What is the most common use case for digital certificates?
Common use cases are SSL certificates, private SSL certificates, email security certificates, code signing certificates, mobile security certificates and digital ID

4-What is a certification authority?
It is a third party entity that is responsible for extending digital certificates to companies or individuals. They are considered valid in the PKI field

[cryptokaritz]

1. A digital certificate is a data file used to cryptographically link ownership of a public key to an entity that owns it.
2. A digital certificate is the instrument to share a public key. The digital certificate contains more data than a public key.
3. Digital certificates are used for sharing public keys for encryption and authentication.
4. A CA is a third-party certificate authority that issues digital certificates.

[Ray]

1 A digital certificate is a ownership certificate in blockchain. By viewing it you can know you own it.
2 The digital certificate you can know you has ownership and with public key you don’t know you own is.
3 There are many use cases like insurance or medical records and etc.
4 It a trusted third party.

[lbjenious]

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? They are one in the same 
⁃	A digital certificate AKA also known as a public key certificate

                 Digital signature 
⁃	Digital Signatures are generated using algorithms for signing of data, with the result that a recipient can irrefutably confirm that the data was signed by the holder of a particular public key.
⁃	Digital signatures are generated by hashing the data to be signed with a one-way cryptographic hash; the result is then encrypted with the signer's private key.
⁃	The digital signature incorporates this encrypted hash, which can only be authenticated (verified) by using the sender's public key to decrypt the digital signature, and then running the same one-way   hashing algorithm on the content that was signed.
⁃	The two hashes can then be compared, and if they match it proves that the data was unchanged from when it was signed -- and that the sender is the owner of the public key pair used to sign it.



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  (TLS)connections between web browsers and web servers.



4.	What is a certificate authority?
⁃	The majority of digital certificates are issued by 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.
⁃	CAs enables individuals to extend their trust in the CA to the trustworthiness of the digital certificates that it issues.

[laketravisgirl]

1. A digital certificate cryptographically links ownership of a public key with its owner.
2. The difference between a digital certificate and a public key is that a public key is part of what makes up a digital certificate.
3. The most common use case for digital certificates is to secure connections between web servers and browsers.
4. A certificate authority is a trusted third party who issues digital certificates.

[Chantal]

1. A digital certificate - or public key certificate - proves which public key is owned by which entity. It is used for authentification.

2. A digital certificate contains the public key and other information for authentification purpose. The public key does not contain a digital certificate nor any other information than the public key itself, and it is used to encrypt/decrypt data.

3. When used by a web browser for example, a digital certificate proves that the content has not been modified by someone who was not authorized to do it, and it permits to encrypt/decrypt web content.

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

[maerchenprinz]

1. A digital certificate is a cryptographic proof of ownership of a public key. It links the owner to the public key.
2. A public key on its own is anonymous to some extent, whereas the digital certificate verifies the entity owning the public key.
3. Digital certificates are most commonly used in secure connections between a client’s web-browser and the server.
4. A certificate authority is a trusted third party that issues the certificates.

[NetworkP]

1 What is a digital certificate?
Digital Signatures enable encryption and decryption of one’s public and private/secret keys via hashed data/cryptography generated using algorithms

2 What is the difference between a digital certificate and a public key?
Digital Certs bridge and give rights and ownership of use across domains and protocols across the internet ranging from low assurance to high assurance permissions depending on the protocols.

Public keys are used to digitally sign/encrypt digital certificates and can actually be used as a digital certificate form also although this isn’t mandatory.

3 What is the most common use case for digital certificates?
Secure connections across the web between websites and servers(SSL), Domain names and software licences just to name a few.

4 What is a certificate authority?
Certificate Authorities are third party’s who grant and may request KYC’s for the use of digital certificates.

[Fairway]

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 created by the issuer of the certificate.
3. 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. It is a trusted third party that issues digital certificates in the PKI context.

[Jonathan19]

1. A digital certificate is used to cryptographically link ownership of a public key with the entity that owns it.

2. A public key is used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed data. A digital certificate is used for sharing public keys to be used for encryption.

3. Digital certificates are most commonly used for initializing secure secure socket layer connections between web browsers and web server.

4. Certificate authorities are trusted third parties that manage the issuance of certificates.

[sponur]

1. A digital certificate is a cryptographic link between the a public key and its owner

2. A digital certificate is a system that provides public keys, which holds, distributes and authenticates these keys (PKI) public key infrastructure

3. The use case for digital certificate are for public key cryptography functions, used for secure connections between web browser and web servers

4. Certificate authority is the way in which digital certificates are managed

[Paultier]

Digital Certificates - Reading Assignment

1. What is a digital certificate?

• digital certificates are used to verify the identication of the person who signed a digital document

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

• a digital certifical is a public key with additional information which identifys the origin of the public key.
• the origin is mostly an individual person

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

• it is used for signing a digital document in a way to ensure the ownership of the signer/sender

4. What is a certificate authority?

• the certification authority is verifying/proving the identity ob a public key holder/owner
• a certificat is a digitaly signet document which holds information about the public key and additional informatrion like owner identity

[rkindle]

1. What is a digital certificate?
   A digital certificate or 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 digital certificates contains additional metadata to the public key and a proof about the ownership of the public key. The certificate enables entities to share their public key in a way that can be authenticated.

3. What is the most common use case for digital certificates?
   Digital certificates are most commonly used in public key cryptography. One specific application is for content encryption between servers and browser. The other is to share a public key with an counterpart in a way which can be authenticated.

4. What is a certificate authority?
   Certificate Authorities are trusted third parties which issue the digital certificates in a PKI context. They enable individuals to extend their trust in the CA to the trustworthiness of the digital certificate that it issues.

[Timmy]

• Is an electronic document used to prove the ownership of a public key.
• A digital certificate, usually contains info or the entity that owns the public key, and has a digital signature that proves the entity owns the public key.
• Secure SSL connections between web browsers and web servers.
• Certificate authority is an entity that issues digital certificates. Certificate authority acts as a trusted third party trusted both by the owner of the certificate and by the party relying upon the certificate.

[TIMMSY1]

1. What is a digital certificate?
   A digital signature is used to cryptographically link ownership of a public key with the entity that owns it. It include the public key being certified, identifying information about the entity that owns the public key.
2. What is the difference between a digital certificate and a public key?
   A digital certificate links the identity and ownership the public key owner and assures privacy of data and the public key is a large numerical value that is used to encrypt data.
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 trusted authority that issues the digital certificates.