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Lernmaterialien für Netzwerke für den Zahlungsverkehr an der TU München

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TESTE DEIN WISSEN
What is a Public Key Infrastucture?
Lösung anzeigen
TESTE DEIN WISSEN
A public key infrastructure (PKI) is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption.
Lösung ausblenden
TESTE DEIN WISSEN
Name the three authorities of the Public Key Infrastructure! Describe their function!
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TESTE DEIN WISSEN
  • Certificate Authority (CA):
    • acts as a root of trust
    • provides services that authenticate the identity of the individual
  • Registration Authority (RA):
    • handles registrations
  • Validation Authority (VA):
    • provides information on behalf of the CA
Lösung ausblenden
TESTE DEIN WISSEN
What are biometrics?
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TESTE DEIN WISSEN
Biometrics is the technical term for body measurements and calculations. It refers to metrics related to human characteristics.
Lösung ausblenden
TESTE DEIN WISSEN
What are the types of biometrics?
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TESTE DEIN WISSEN
physiological: fingerprint, face, iris, DNA
behavioral: keystroke (Tastenanschlag), signature, voice
Lösung ausblenden
TESTE DEIN WISSEN
Name and describe the two phases of biometric authentication!
Lösung anzeigen
TESTE DEIN WISSEN
  • Enrollment phase:
    • record several samples (images)
    • calculate characteristics
    • store characeristics in database/token
  • Verification/identification phase:
    • verification (check if s.o. is the one he claims): 1:1
    • identification (detect who someone is): 1:n
    • calculate characteristics
    • match characteristics with database/token
Lösung ausblenden
TESTE DEIN WISSEN
Name three biometrics use cases!
Lösung anzeigen
TESTE DEIN WISSEN
  • fast registration for online/offline services
  • faster border control
  • surveillance of the public
Lösung ausblenden
TESTE DEIN WISSEN
What is the Trusted Execution Environment?
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TESTE DEIN WISSEN
  • Provides a safe and trustworthy execution environment for applications.
  • Applications have to be unlocked to run in the TEE.
  • Splits the processor into secure and normal world.
Lösung ausblenden
TESTE DEIN WISSEN
Name an example for a processor that runs in the Trusted Execution Environment!
Lösung anzeigen
TESTE DEIN WISSEN
ARM Trusted Core
Lösung ausblenden
TESTE DEIN WISSEN
What is a Mobile Wallet?
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TESTE DEIN WISSEN

  • app on mobile devices for cashless payment

  • deposition of payment cards or pre-paid credit

  • thus it can replace or complement commonly used payment methods

  • there are shop-specific apps and mobile-payment-providers

Lösung ausblenden
TESTE DEIN WISSEN
What secures mobile payment?
Lösung anzeigen
TESTE DEIN WISSEN
The Secure Element (SE) that is embedded into the SIM, the SD-card or the phone
Lösung ausblenden
TESTE DEIN WISSEN
What are four types of attacks?
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TESTE DEIN WISSEN
  • Breach of confidentiality (Theft of private confidential data, e.g. credit card information)
  • Breach of Integrity (Unauthorized modification of data, e.g. source code)
  • Theft of Services (Unauthorized use of resources, e.g. theft of CPU cycles)
  • Denial of Service (DoS: attacker makes a machine/network resource unavailable to its intended users by disrupting services of a host connected to the internet)
Lösung ausblenden
TESTE DEIN WISSEN
Name usages of the Public Key Infrastructure.
Lösung anzeigen
TESTE DEIN WISSEN
  • Encryption and sender authentication of e-mails
  • Communicating on insecure public networks
  • Electronic Signatures
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Q:
What is a Public Key Infrastucture?
A:
A public key infrastructure (PKI) is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption.
Q:
Name the three authorities of the Public Key Infrastructure! Describe their function!
A:
  • Certificate Authority (CA):
    • acts as a root of trust
    • provides services that authenticate the identity of the individual
  • Registration Authority (RA):
    • handles registrations
  • Validation Authority (VA):
    • provides information on behalf of the CA
Q:
What are biometrics?
A:
Biometrics is the technical term for body measurements and calculations. It refers to metrics related to human characteristics.
Q:
What are the types of biometrics?
A:
physiological: fingerprint, face, iris, DNA
behavioral: keystroke (Tastenanschlag), signature, voice
Q:
Name and describe the two phases of biometric authentication!
A:
  • Enrollment phase:
    • record several samples (images)
    • calculate characteristics
    • store characeristics in database/token
  • Verification/identification phase:
    • verification (check if s.o. is the one he claims): 1:1
    • identification (detect who someone is): 1:n
    • calculate characteristics
    • match characteristics with database/token
Mehr Karteikarten anzeigen
Q:
Name three biometrics use cases!
A:
  • fast registration for online/offline services
  • faster border control
  • surveillance of the public
Q:
What is the Trusted Execution Environment?
A:
  • Provides a safe and trustworthy execution environment for applications.
  • Applications have to be unlocked to run in the TEE.
  • Splits the processor into secure and normal world.
Q:
Name an example for a processor that runs in the Trusted Execution Environment!
A:
ARM Trusted Core
Q:
What is a Mobile Wallet?
A:

  • app on mobile devices for cashless payment

  • deposition of payment cards or pre-paid credit

  • thus it can replace or complement commonly used payment methods

  • there are shop-specific apps and mobile-payment-providers

Q:
What secures mobile payment?
A:
The Secure Element (SE) that is embedded into the SIM, the SD-card or the phone
Q:
What are four types of attacks?
A:
  • Breach of confidentiality (Theft of private confidential data, e.g. credit card information)
  • Breach of Integrity (Unauthorized modification of data, e.g. source code)
  • Theft of Services (Unauthorized use of resources, e.g. theft of CPU cycles)
  • Denial of Service (DoS: attacker makes a machine/network resource unavailable to its intended users by disrupting services of a host connected to the internet)
Q:
Name usages of the Public Key Infrastructure.
A:
  • Encryption and sender authentication of e-mails
  • Communicating on insecure public networks
  • Electronic Signatures
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