Security+

Card Set Information

Author:
ndunsmore
ID:
157424
Filename:
Security+
Updated:
2012-06-05 16:52:27
Tags:
Security
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Description:
Security+
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  1. FTP port numbers
    20, 21
  2. FTPS port numbers
    989, 990
  3. SSH port number
    22
  4. SCP port number
    22
  5. SFTP port number
    22
  6. Telnet port number
    23
  7. SMTP port number
    25
  8. SMTPS port number
    465
  9. TACACS+
    29
  10. DNS
    53

    UDP 53
  11. DHCP UDP port numbers
    UDP 67, 68
  12. TFTP UDP port number
    UDP 69
  13. HTTP port number
    80
  14. HTTPS port number
    443
  15. Kerberos port number
    TCP 88

    UDP 88
  16. POP 3 port number
    110
  17. POP3S port number
    995
  18. NNTP port number
    119
  19. NNTPS port number
    563
  20. NetBIOS TCP port number
    139
  21. NetBIOS UDP port numbers
    UDP 137, 138
  22. SMB TCP port number
    445
  23. SMB UDP port number
    UDP 445
  24. IMAP port number
    143
  25. IMAPS port number
    993
  26. SNMP/SNMPTrap UDP port numbers
    UDP 161, 162
  27. LDAP port number
    389
  28. LDAPS port number
    636
  29. L2TP UDP port number
    UDP 1701
  30. PPTP port number
    1723
  31. RADIUS UDP port numbers
    UDP 1812, 1813
  32. NFS port number
    2049
  33. Bit Torrents port numbers
    6881-6999
  34. RDP port number
    3389
  35. DES key length
    • 56 bit
    • Modified Lucifer
  36. 3DES key length
    168 bit key

    Slower than IDEA or Cast

    PGP
  37. AES key length
    128, 192, 256 bit keys

    Replaced DES as standard
  38. CAST key length
    40 -> 128 bit key

    Very fast and efficient

    PGP
  39. RC4 - Stream or Block?
    Stream
  40. RC4 - associated with?
    Associated with WEP
  41. RC5 - Stream or Block?
    Block
  42. RC5 key length
    Up to 2048 bit key
  43. Blowfish key length
    Up to 448 bit key
  44. Twofish key length
    128 -> 256 bit key

    PGP
  45. IDEA key length
    128 bit key

    PGP
  46. IDEA - Stream or Block
    64 bit block
  47. SkipJack key length
    80 bit key

    Clipper chip
  48. Name the two (2) Stream encryption protocols
    RC4

    OTP - One Time Pad
  49. RSA - how is key derived?
    Factorization of large primes

    Large prime beef cow with big R brand
  50. El Gamal - how derived?
    Uses discrete logarithms.

    Middle east guy building log house

    Based on Diffie-Hellman
  51. ECC - how derived?
    Elliptic Curve Cryptography

    Based on two points on an elliptic curve

    Used on cellphones and PDAs

    Less computation for same work factor
  52. SHA - how many bits?
    160 bits

    NSA

    More secure than MD5

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