Digital Certificates - Reading Assignment

  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?
    A public key is used to encrypt and sign. A digital certificate contains more data binding the public key with an owners identity.

  3. What is the most common use case for digital certificates?
    SSL certificates for websites creating a secure connection between ones browser and the server.

  4. What is a certificate authority?
    A trusted third party issuing digital certificates.

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  1. This is a public key certificate that is used to link ownership of a public key with the person or organisation that owns it cryptographically.

  2. The difference is that a digital certificate contains more meta data than a public key and enables the owner to share their public key in a way that can be authenticated.

  3. For encryptions, authentications and digital signatures like TLS-certificates(SSL) , VPN-certificates(Intranet) and E-identifications(Bankings).

  4. CA’s are Trusted third parties in the context of a PKI (public key infrastructure) that can issue digital certificates.

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Q1. What is a digital certificate?
A1. crytographically link connecting a public key to the owner.

Q2. What is the difference between a digital certificate and a public key?
A2. public key is for encryption and digital certificate are used to link to the owner of the key.

Q3. What is the most commom use case for digital certificate?
A3. web browsers & web servers

Q4. What is a certificate authority?
A4. trusted third party entity that issues digital certificate.

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  1. A digital certificate, is also known as a public key certificate, it is used to cryptographically link ownership of a public key with the entity that owns it. Also digital certificates are fo sharing public keys to be used for ecryption & authentication
    2 the the difference between a digital certificate and a public key is that a digital certificate cannot give no guarrantees about who that entity is.
  2. Digital certificates are used in other context both on line & offline for providing cryptographic assurance & privacy of data.
  3. A certificate authority also known as CA’s are third parties in the context of a Private Key Infustructure enables individuals to extend trust to CA’s to the trustworthiness to the digital certificates it issues.
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  1. What is a digital certificate?
  • It links a public key with the owner of this key. It includes the key itself, some identifying data of the owner, metadata of the certificate and a digital signature of the key created by the issuer of the certificate.
  1. What is the difference between a digital certificate and a public key?
  • Public key itself doesn’t have an owner. You can share your public key and not tell anyone who you are.
  • Digital certificate creates a link between an identity and a public key; it is what gives the key an official owner.
  1. What is the most common use case for digital certificates?
  • For secure SSL connections. When you visit a website that’s encrypted with SSL, your browser will form a connection with the web server, look at the SSL certificate, then bind your browser and the server.
  • If I’m right, all messaging apps that use end-to-end encryption also use digital certificates? Because otherwise, how does the app know what public key to use for what recipient…?
  1. What is a certificate authority?
  • It is a trusted third party in the context of public key infrastructure. Most of digital certificates are issued by third parties.
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Public key certificate that is used to cryptographically link ownership of a public key with the entity that owns it.

A public key is what is shared to encrypt data . A digital certificate verifies the public key that belongs to a specific owner.

Digital certificates are most commonly used for initializing secure 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.

A certificate authority (CA) is a trusted third party entity that issues digital certificates.

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  1. What is a digital certificate?
  • Digital certificate links ownership of a public key with the entity that owns it. It includes 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.
  1. What is the difference between a digital certificate and a public key?
  • The public key is only a part of the digital certificate.
  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. Digital certificates are also used for sharing keys to be used for public key encryption and authentication of digital signatures.
  1. What is a certificate authority?
  • Certificate authorities are trusted third parties in the context of a public key infrastructure
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  1. Is a public key certificate used for link ownership of a public key with entity that owns it.
  2. 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.
  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.
    4.trusted third parties.
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What is a digital certificate?

  • A digital certificate is a digital document issued by a digital authority that links the owner of a public key to the entity that owns it.

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

  • A digital certificate is used to cryptographically confirm that a public key belongs to a specified entity. A public key is a cryptographic key that can be used to encrypt data intended for a specific recipient.

What is the most common use case for digital certificates?

  • The most common use for a digital certificate is to initialise secure connections between web browsers and web servers.

What is a certificate authority?

  • A certificate authority is considered to be a trusted third party in the context of Private Key Infrastructure that issues a digital certificate.
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  • 1.What is a digital certificate?
    Public key certificate that links ownership of a public key and the thing that owns it.

  • 2.What is the difference between a digital certificate and a public key?
    Digital certificate links a public key to who owns it. Public keys used to perform cryptographic functions.

  • 3.What is the most common use case for digital certificates?
    Retrieve public key and info of it and use it for SSL connections between browsers and servers.

  1. What is a certificate authority?
    Trusted third party that issues digital certificates.
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1.cryptographic link between a public key and the entity which owns it
2. digital certificates verifies that the public key used for encryption belongs to a specific party
3. the most common usecase is to initialize secure connections between web browsers and web servers
4. third party acting as authority for issuing digital certificates

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  1. a digital certificate is an electronic file that links an entities public key to their identidy. This is used for encryption and authentication.
  2. A digital certificate is a file that contains the public key being certified, identifying information about the owner of 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 an identity string.
  3. they are most commonly used for initializing secure SSL connections between web browsers and web servers
  4. A certificate authority is a trusted third party can can issue digital certificates.
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  1. it is a cryptographically link ownership of a public key with the entity that owns it.
    2.digital certificate keeps the data and private key. the public keys can access the certificate thru cryptography
    3.validating authenticity
    4.trusted entity that provides certificates
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  1. What is a digital certificate?
    Public key certificate, which 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?
    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?
    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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  1. Digital certificate is a set of information that includes certified public key, the public key owner identity, digital certificate data, digital signature of the public key. It is used to cryptographically link the public key ownership with the owner.

  2. A digital certificate includes the public key being certified as well as other information for encryption and authentication.

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

  4. Certificate authority is the trusted third party in the context of public key infrastructure. It issues digital certificates.

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  1. Digital certificate also known as public key is used to cryptographically link ownership of public key to the entity that owns it.
  2. Digital certificates are for sharing public keys to be used for encryption and authentication. A public key cryptographic infrastructure that enables the public keys to be distributed and authenticated. Public keys are pairs that authenticate digital certificates. In cryptography, a public key is a large numerical value that is used to encrypt data. In asymmetric cryptography, whatever is encrypted with a public key may only be decrypted by its corresponding private key and vice versa.
  3. Digital certificates are used a) in public key cryptography functions; for initializing secure [SSL]connections between web browsers web servers b) Also used for sharing keys (pairs) to be used for public key encryption and authentication of digital signatures. c)Are also used in other contexts, both online and offline, for providing cryptographic assurance and privacy of data.
  4. Certificate authority issues digital certificates to trusted 3rd parties such as service providers, vendors etc, These parties use the digital certificates to interact in their respective contexts .
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  1. Digital certificates are for sharing public keys to be used for encryption and authentication. They include the public key being certified, identity 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. The primary difference is that public keys are used for encryption of data sent to the public key owner or authentication of the certificate holder’s signed date. The digital certificate enables entities to share their public key in a way that can be authenticated.

  3. T hey 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. Certificate authorities (CAs) are third part who are trusted to issue digital certificates.

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  1. A digital certificate is a link between the public key and the person that owns it.

  2. Public key is the cryptographic data that is used when making cryptographic functions. The digital certificate contains the public key and defines who is the owner of the public key.

  3. Initializing secure SSL connections between web browsers and web servers. They are also used for sharing keys to be used for public key encryption and authentication of digital signatures.

  4. A third party that issues digital certificates.

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  1. A digital certificate, also known as a public key certificate , is used to 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 holds data and a private key. The public key contains authenticating info to lock up the private key in the certificate. Only the related public key to the certificate can unlock the certificate through cryptographic algorithms.

  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. Central authorities (CA,s) are trusted third parties which issue digital certificates, enabling individuals to extend their trust in the CA to the trustworthiness of the digital certificates that it issues.

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What is a digital certificate?
A digital certificate is a means to authenticate ownership of entity.

What is the difference between a digital certificate and a public key?
A Public key is the encrypted private key while a digital certificate is use to share the public key in a way that can be authenticated

What is the most common use case for digital certificates?
They are most commonly used for secure SSL connections between web browsers and servers.

What is a certificate authority?
A third party that authenticates the digital certificate.

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