Digital Certificates - Reading Assignment

Blockchain Business Course
#582

  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 and 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. The digital certificate 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. Whereas the public key is used for encryption of data sent to the public key owner or authentication of the certificate holderā€™s signed data.

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

  4. Certificate authorities are considered trusted third parties. 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.

1 Like
#583
  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. A digital signature is generated using algorithms for the 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. while Digital certificates are for sharing public keys and to be used for encryption and authentication. Digital certificates include the public key being certified as well as 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 most commonly used for initializing secure SSL connections between web browsers and web servers.
  4. A Certificate Authority is a trusted 3rd party that issues the digital certificates.
1 Like
#584
  1. What is a digital certificate?
    Digital certificate is data file which include the public key, 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?
    Digital certificates are for sharing public keys to be used for encryption and authentication. Digital certificates include the public key. Public key is used for encription.
    3. What is the most common use case for digital certificates?
    for public key encryption and authentication of digital signatures. for providing cryptographic assurance and privacy of data. for initializing secure SSL connections
    4. What is a certificate authority?
    It is a trusted third party who issues digital certificates.
1 Like
#585

  1. A digital certificate cryptographicaly links ownership of a public key with the entity that owns it.

  2. The difference between a digital certificate and a public key is that a public key depends on key pairs, one held by the owner used for signing and decryption and one used for encryption or authentication of the certificate holders signature. a digital certificate allows entities to share their key in a way that can be verified.

  3. The most common use case for a digital certificate is to reassure an entity that an unauthorized actor hasnā€™t modified a publication.

  4. A certificate authority is a trusted third party.

1 Like
#586

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

  2. Digital certificates include the public key being certified and metadata/identifying information about the entity that owns the public key.

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

  4. CAā€™s are considered trusted third parties in the context of a PKI.

1 Like
#587
  • What is a digital certificate?
    A digital certificate (public key certificate) is used to cryptographically link ownership of a public key with the entity that owns it.

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 difference between a digital certificate and a public key?
    Digital certificate enables entities to share their 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 initializing secure [SSL] connections between web browsers and web servers.

  • What is a certificate authority?
    CAā€™s are third party that issue digital certificates.

1 Like
#588

What is a digital certificate?

Itā€™s a certificate 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 is a large value used to encrypt data. A digital certificate does not encrypt data, it contains information about the entity that owns a public key (as well as containing the public key).

What is the most common use case for digital certificates?

They are most commonly used for initializing Secure Sockets Layer connections between web browsers and web servers

What is a certificate authority?

A trusted third party that can issue digital certificates

#589
  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.

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

A public key is included within the digital certificate, along with the identification of ownership for that public key, metadata and digital signature.

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

SSL, secure socket layer connections between web browsers and servers.

  1. What is a certificate authority?

A CA is a trusted third party that issues certificates through PKI.

1 Like
#590
  1. A digital certificate is used to cryptographically link ownership of a public key with the entity that owns it.
  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.
  3. To provide assurance that published content has not been modified by any unauthorized actors, and to share keys for encrypting and decrypting content.
  4. A certificate authority is a trusted third party which issues certificates.
1 Like
#591

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

2nd.
Digital certificates are meant for sharing public keys to be used for encryption and authentication. Digital certificates include:

  1. the public key being certified,
  2. identifying information about the entity that owns the public key,
  3. metadata relating to the digital certificate and a
  4. digital signature of the public key created by the issuer of the certificate.

3rd.
Authority that issues a digital certificate. (CA).

1 Like
#592
  1. A digital certificate is used to cryptographically link ownership of a public key with the entity that owns it.
  2. A digital certificate shares te public key and can be authenticated. The public key is used to sign and encrypt a message that ca be decrypted only by the private key. The same entity owns both keys.
  3. Make connection between a we browser and a web server secure. SSL.
    4.CA is often a trusted third party that issues/manages digital certificates
1 Like
#593
  1. What is a digital certificate?

Digital certificates are electronic credentials that bind the identity of the certificate owner to a pair of electronic encryption keys, (one public and one private), that can be used to encrypt and sign information digitally.

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

Public key cryptography 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 holderā€™s signed data. The digital certificate enables entities to share their public key in a way that can be authenticated.

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

Digital certificates are for sharing public keys to be used for encryption and authentication.

  1. What is a certificate authority?

A certificate authority, sometimes referred to as a certification authority, is a company or organisation that acts to validate the identities of entities (such as websites, email addresses, companies, or individuals) and bind them to cryptographic keys through the issuance of electronic documents known as digital certificates.

1 Like
#594

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

  2. A digital certificate has a link to the owner of a public key whereas a public key by itself is cryptographically linked to a private key.

  3. Commonly used to link a web server to a domain.

  4. A third party that issues digital certificates.

1 Like
#595
  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 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. Digital certificates are used for sharing public keys to be used for encryption and authentication.
  4. CAs are considered trusted third parties in the context of a PKI
1 Like
#596
  1. Also known as a public key certificate, is used to crypto logically link ownership of a public key with the entity that owns it.
  2. D.C is the certifier of the PK & its contents; PK represents the user themselves within the network.
  3. To initialize secure SSL connections between web browsers & web servers, as well as public key cryptography functions.
  4. trusted 3rd parties in the context of a PKI; this enables the 3rd party to issue D.Cā€™s and enables individuals to extend trust to the C.A by its trust in the D.C.
1 Like
#597
  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

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

a digital certificate verifies identity and ownership of certain data and private/public key pair.
a public key is a tool for encrypting incoming data.

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

providing security between web clients and servers.

  1. What is a certificate authority?

A trusted third party that issues digital certificates.

1 Like
#598

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

  2. A digital certificate verifies the ownership of the public/private key pair. The public key is for encryption purpose.

  3. Digital certificate is used to securely connect web browser and web server.

  4. A trusted third party that issues digital certificate.

1 Like
#599

  1. public key certificate its used to cryptographically link ownership of public key with the entity that owns it( in short its a way for linking the owner to public key as a way of verification of ownership)

  2. digital certificate lets you know who or what is the entity which signed ( know exactly who sent it to you)
    Public key as example in open blockchain you know its correct but you donā€™t know the true entity of the sender.

3)they are commonly used for initializing secure SSL connection between web browsers and web servers.

  1. considered trusted third parties in the context of a PKI
1 Like
#600
  1. What is a digital certificate?

Used cryptographically to link owner of a public key with entity that owns it, used for encryption and authentication

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

They are the same thing

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

To encrypt and authenticate

  1. What is a certificate authority?

CAs are considered trusted third parties in the context of a PKI;

1 Like
#601

1.- It is a way to sign data in the form of a public key.
2.- One gives authorization on data, the other hashes the data to be validated by the issuer.
3.- Domain assurance, that the issuer can use that part.
4.- It is an entity that validates the issuer of the digital certificate.

1 Like