Digital Certificates - Reading Assignment

Blockchain Business Course
#302

  1. What is a digital certificate?
    It is 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?
    Certificate contains public key and also other information such as issuer, what the certificate is supposed to be used for, and other types of metadata.

  3. What is the most common use case for digital certificates?
    Certificates are mostly used by browsers and web servers to provide guarantee that context on these was not modified by some other unauthorized authority.

  4. What is a certificate authority?
    It is trusted 3rd party that issues digital certificates.

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#303
  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.

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

The digital cert signifies the owner of the public key

  1. 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.

  2. What is a certificate authority?
    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.

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#304

  1. What is a digital certificate?
    I digital is a public key used to link the owner of a public key to its private key counterpart.

  2. What is the difference between a digital certificate and a public key?
    A digital certificate includes more information than a public key. That information consists of the public key plus extra data to confirm the sender of data. Therefore it is more secure that the seder of the information is the user of that public key when using a digital certificate similar to 2-factor identification.

  3. What is the most common use case for digital certificates?
    The initialization of secure SSL connections between web browsers and web servers.

  4. What is a certificate authority?
    CA are trusted third parties in for the issuance of a PKI

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#305
  1. A digital certificate aka public key certificate is used to cryptographically link ownership of a public key with the entity that owns it
  2. Digital certificates are shared public keys. Public keys are used for encrypting and signing messages. The encrypted messages can only be read by a private key holder.
  3. Most common use case is for initialising secure SSL connections between web browsers and servers
  4. Trusted third parties in the context of PKI that issue digital certificates
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#306

1) What is a digital certificate?
A digital certificate is also known as a public key certificate. It is used to identify and authenticate the ownership of public key to the entity that owns it.
2) What is the difference between a digital certificate and a public key?
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?
Digital certificates are for sharing public keys to be used for encryption and authentication. Digital certificates are used by all major web browsers and web servers to provide assurance that published content has not been modified by any unauthorized actors, and to share keys for encrypting and decrypting web content. Digital certificates are also used in other contexts, both online and offline, for providing cryptographic assurance and privacy of data.
4) What is a certificate authority?
Certificate Authorities (CAs) are trusted third parties in the context of a Public Key Infrastructure (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.

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#307

  1. 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. Public key depends on key pairs: one a private key to be held by the owner and used for signing and decrypting, and one a public key that can be used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed data. The digital certificate enables entities to share their public key in a way that can be authenticated.

  3. Digital certificate is usually held by web servers to secure published website content from modifying it by unauthorized person, and to share key for encrypting and decrypting web content.

  4. A trusted third party authority that issues digital certificate

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#308

1- It is a certificate issued by a certificate authority, linking the owning entity with the public key
It helps keep the data secure by authenticating and revoking certificates as things change in an organization.
2- Digital certificates are used for identification and encryption in order to allow secure sharing of public keys. They contain the identity of the entity who owns the certificate metadata , a digital signature and the public key to be shared.
The public key infrastructure has 2 components, A) the public key used for digital signature and decrypting the information/data
B) the public key used for encrypting data so information can be shared by the authenticated certificate holders of the public keys
It allows secure communication within a authenticated group of certificate holders
3-Commonly used for secure SSL connections between web browsers and web servers
4- The issuer of the certificates mostly.

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#309
  1. Q: What is a digital certificate?
    A: A “Digital Certificate” (Public Key Certificate) is used to cryptographically link ownership of a Public Key with the entity that owns it:
    Owner —> Digital Certificate —> Public Key
  2. Q: What is the difference between a Digital Certificate and a Public Key?
    A: Digital Certificates are for sharing Public Keys, Public Keys are used for encryption and authentication.
  3. Q: What is the most common use case for digital certificates?
    A: They are most commonly used for initializing secure SSL connections between web browsers and web servers.
  4. Q: What is a Certificate Authority (CA)?
    A: CAs are considered trusted third parties in the context of a PKI.
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#310

  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. Digital certificates are for sharing public keys to be used for encryption and authentication. Public key on the other hand are cryptographic keys that can be obtained and used by anyone to encrypt messages intended for a particular recipient, such as encrypted messages.

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

  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.

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#311

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? 1. 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.

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?
Certificate Authority, or CA’s, are considered trusted third parties in the context of a Publick 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 issue

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#312

  1. What is a digital certificate?
    A public key certificate that can be used for crypotography or authentication

  2. What is the difference between a digital certificate and a public key?
    a digital certificate holds a public key and can be used for initializeing secure SSL connection for instance. It can protect against unauthorized tampering with web content

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

  4. What is a certificate authority?
    CA’s are considered trusted third parties in the context of a Public Key Infrastructure. The majority of certificates come from CA’s

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#313

It is a public key certificate

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.

It extends the trust of the validator’s trustworthiness
Digital certificates are used by all major web browsers and web servers to provide assurance that published content has not been modified by any unauthorized actors, and to share keys for encrypting and decrypting web content. Digital certificates are also used in other contexts, both online and offline, for providing cryptographic assurance and privacy of data.

The certificates issued by the third parties like CAs

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#314
  • What is a digital certificate?
    A digital certificate is used to link the ownership of a public key with the entity that owns it.
  • 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.
  • What is the most common use case for digital certificates?
    The SSL connection between the web browser and the web servers.
  • What is a certificate authority?
    They issue digital certificate as trusted 3rd party.
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#315

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

  2. The digital certificate is just all the info about the public key.

  3. The most common use for digital certificates are for initializing secure SSL connections between web browsers and web servers.

  4. Certificate authority is a trusted third party in the context of a PKI.

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#316

What is a digital certificate?
Shortly it is a cryptographically link between private key, that needs
to get authorized by a public key.
It is a file that consists of user data and
cryptographic keys. The certificate can be used for encryption,
digital signatures and authentication. There are special certificates
for different purposes, for example different type of e-credentials.
The primary purpose of digital certificates is the distribution,
authentication, revocation. Reason for it is to provide assurance
for example that published content has not been modified.
Also used in context for both online and offline data that need
some kind of security, internal use and more.

What is the difference between a digital certificate
and a public key?
You sign with your private key, then your private key get verified
with the public key. If they doesn’t match you won’t get access.

What is the most common use case for digital certificates?
That is digital identity certificate to proof the ownership of a
public key, most common is usually a person within an organisation.
SSL connections between web browsers and webservers.

What is a certificate authority?
Certificate authority (CA) A trusted third partie authority that
issue digital certificates, that certifies that what is called
in the certificate is the owner of a certain public key.

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#317

1. What is a digital certificate?

  • A digital document that cryptographically links 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 public key is part of a public/private key pair used to encrypt data, while the digital certificate authenticates the ownership of a public key.

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

  • Initialising secure SSL connections between web browsers and web servers.

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

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#318

  1. A digital certificate links a public key to an verified user, and gives them the ability to use a digital signature.

  2. The public key authenticates the user’s private key; whereas the digital certificate enables entities to share their public key in a way that can be authenticated.

  3. Digital certificates are most commonly used for initializing secure SSL connections between web browsers and web servers.

  4. Certificate Authorities are considered trusted third parties within the public key infrastructure, that issue digital certificates.

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#319

Loved your answers. It’s easy to understand. Great work. :clap:

Carlos Z.

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#320

thanks a lot :blush:

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#321
  1. It is a public key certificate that proves the ownership of the holder
  2. Public key is a part of the Digital certificate and it is used for preforming functions, and Digital Certificate as a whole consists of piblic key that is certified, metadat relating to the certificate and a digital signature from the issuer.
  3. They are used for: secure SSL connections between web browsers and servers, for sharing keys to be used for public key encryption and authentication of digital signatures, to provide assurance that published content has not been modified by any unauthorized actors, and to share keys for encrypting and decrypting web content.
  4. A trusted third party that issues digital certificates
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