PKCS #1

Target entity: PKCS #1
Context triple: [RSA, standardizedIn, PKCS #1]

• A. RSA
  RSA is a widely used public-key cryptographic algorithm that enables secure key exchange and digital signatures in many internet security protocols.
• B. PGP
  PGP (Pretty Good Privacy) is an encryption program that provides cryptographic privacy and authentication for data communication, most notably for securing emails and files.
• C. NIST SP 800-56A
  NIST SP 800-56A is a NIST Special Publication that specifies approved methods for public-key establishment, including Diffie–Hellman–based key agreement schemes, for use in U.S. federal cryptographic systems.
• D. Diffie–Hellman key exchange
  Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
• E. X.509 certificates
  X.509 certificates are digital documents that bind a public key to an entity’s identity using a trusted certificate authority, forming the basis of public key infrastructure for secure communications.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: PKCS #1
Target entity description: PKCS #1 is a cryptographic standard that defines the mathematical properties, formats, and padding schemes for implementing RSA encryption and digital signatures.

• A. RSA
  RSA is a widely used public-key cryptographic algorithm that enables secure key exchange and digital signatures in many internet security protocols.
• B. PGP
  PGP (Pretty Good Privacy) is an encryption program that provides cryptographic privacy and authentication for data communication, most notably for securing emails and files.
• C. NIST SP 800-56A
  NIST SP 800-56A is a NIST Special Publication that specifies approved methods for public-key establishment, including Diffie–Hellman–based key agreement schemes, for use in U.S. federal cryptographic systems.
• D. Diffie–Hellman key exchange
  Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
• E. X.509 certificates
  X.509 certificates are digital documents that bind a public key to an entity’s identity using a trusted certificate authority, forming the basis of public key infrastructure for secure communications.
• F. None of above. chosen