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Gorazd Božič: Zaščita elektronske pošte s protokolom PGP [Cryptoparty Slovenija 2015]

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Na prvem Cryptoparty Slovenija dogodku, ki se je 30. 3. 2015 odvil v Na prvem Cryptoparty Slovenija dogodku, ki se je 30. 3. 2015 odvil v ljubljanskem Poligonu (http://www.poligon.si), je Gorazd Božič predstavil prednosti in načine zaščite elektronske pošte s protokolom PGP.

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Gorazd Božič: Zaščita elektronske pošte s protokolom PGP [Cryptoparty Slovenija 2015]

  1. 1. -----BEGIN PGP MESSAGE----- Comment: GPGTools - http://gpgtools.org hQQOAwFlWS/IUfOxEBAAjTPox2+a3eMglaa1frQA5VNA8p+2saQZWDEpLcqa8XV9 /EzQfDOLaF00HAZOFti5Ko0ks1yMgXK7QZUAYxc8H6rFD1jQFpADf6MVJmFYYEfx db795OGOcQhZaJb73nFowtzCTZtIpMhnF7/wlgPv61pIdxHgdEtxVWgNnPPb5MJN 3iwNmmBvNlqGXczDpn3dRQG8f76eIft1HJIhReKan3YH65ELWB6GFhAc7vcWMJzx hRCnJ0KaJsRa68qQDPnfsLvmcRp45+0/VALW4yhEMHW7UdPKrrmKVTieE4ETW/sd 6Ot0WerJ4prxp0E47DExjjb2FLglhlFJsju+0UM/oQLOwAqD1j0LnNaH1i6Q3aTh paKi4RoAsFaVmDQGI5dV0/3p69eNPw5JMXwRrbEKneLgE62ugS/79O5NFn1hv/DR Ex7wVkmxhtw08f/ZDwllo1fRbzYQ2WV92+6OP8Sz0wSdC/s8fXCemLqoz3V0+u9H BpFhAc72kRVPXOwWVWmpL6PJLxtdSRsBKv/9teDIAjbW0FRw2h67GyLeaUM1qZFb 7Wy5vBrchdp6/rwwdbEwMAFgYX+DwaJedIftu/kBVK6wlaZWoDLfrgHbmNC6pG86 /wPcYaZSApv44FAJ0G7/VlVaAY58Ix2bYgZRykaUkUNhQasezSzBdPhvNRTzxHkP /2xMN2EK5Qc58OnWtnk4bAmPywT6orxP0JwxMT3h0iRu95Z16wDQezWPQLjffNG5 iM+fMbKPgiSkIJsHxK/vCtWqgL3gzhcNwXNt09S3IvAQAWyUhgna0WDr6EV1e4Vw fGEn6XbrxgawbFRJ4h1qxEXqQfWeDHZwRFRZeQaWtyB2usYgDQMRjvBELQEu5/3r eQrWQeIc9LpiQWpEDnLAORym8xeW14xRZ4HW2IAX1ytjJWt3bTO14FqgadOy8xtW cFlR8YPQSIgxrE4m3ataKjVP9vxP1eqyndj4ZHo3QphBg3IhjT9CRc5BZtwELYzt cK/iz3/DKXIhTYjhOfozbwS+rDbeD8g22Nt1vhlJ0EVmT3KO9/I2p0KGucJd7RLM 8uaTu0QUkXYN0jjnBI0m9+SHzpWsHfumGTA/2E/Xee3gXHooxQDPhKLe9018jD6f PGP Cryptoparty, 30. 3. 2015 gorazd.bozic@cert.si, @gbozic
  2. 2. 1991
  3. 3. “The question remains: are we going to allow a means of communications where it simply is not possible to do that? My answer to that question is: no, we must not.” CC-BY FishInWater @ flickr.com
  4. 4. PGP Pretty Good Privacy ~ GPG GNU Privacy Guard -----BEGIN PGP MESSAGE----- Comment: GPGTools - http://gpgtools.org hQQOAwFlWS/IUfOxEBAAjTPox2+a3eMglaa1frQA5VNA8p+2saQZWDEpLcqa8XV9 /EzQfDOLaF00HAZOFti5Ko0ks1yMgXK7QZUAYxc8H6rFD1jQFpADf6MVJmFYYEfx db795OGOcQhZaJb73nFowtzCTZtIpMhnF7/wlgPv61pIdxHgdEtxVWgNnPPb5MJN 3iwNmmBvNlqGXczDpn3dRQG8f76eIft1HJIhReKan3YH65ELWB6GFhAc7vcWMJzx hRCnJ0KaJsRa68qQDPnfsLvmcRp45+0/VALW4yhEMHW7UdPKrrmKVTieE4ETW/sd 6Ot0WerJ4prxp0E47DExjjb2FLglhlFJsju+0UM/oQLOwAqD1j0LnNaH1i6Q3aTh paKi4RoAsFaVmDQGI5dV0/3p69eNPw5JMXwRrbEKneLgE62ugS/79O5NFn1hv/DR Ex7wVkmxhtw08f/ZDwllo1fRbzYQ2WV92+6OP8Sz0wSdC/s8fXCemLqoz3V0+u9H BpFhAc72kRVPXOwWVWmpL6PJLxtdSRsBKv/9teDIAjbW0FRw2h67GyLeaUM1qZFb 7Wy5vBrchdp6/rwwdbEwMAFgYX+DwaJedIftu/kBVK6wlaZWoDLfrgHbmNC6pG86 /wPcYaZSApv44FAJ0G7/VlVaAY58Ix2bYgZRykaUkUNhQasezSzBdPhvNRTzxHkP /2xMN2EK5Qc58OnWtnk4bAmPywT6orxP0JwxMT3h0iRu95Z16wDQezWPQLjffNG5 iM+fMbKPgiSkIJsHxK/vCtWqgL3gzhcNwXNt09S3IvAQAWyUhgna0WDr6EV1e4Vw fGEn6XbrxgawbFRJ4h1qxEXqQfWeDHZwRFRZeQaWtyB2usYgDQMRjvBELQEu5/3r eQrWQeIc9LpiQWpEDnLAORym8xeW14xRZ4HW2IAX1ytjJWt3bTO14FqgadOy8xtW cFlR8YPQSIgxrE4m3ataKjVP9vxP1eqyndj4ZHo3QphBg3IhjT9CRc5BZtwELYzt cK/iz3/DKXIhTYjhOfozbwS+rDbeD8g22Nt1vhlJ0EVmT3KO9/I2p0KGucJd7RLM 8uaTu0QUkXYN0jjnBI0m9+SHzpWsHfumGTA/2E/Xee3gXHooxQDPhKLe9018jD6f
  5. 5. zasebni javni
  6. 6. zasebni javni
  7. 7. zasebni javni besedilo Ic9LpiQWpE besedilo
  8. 8. zasebni javni ✓ digitalni podpis besedilo
  9. 9. PGP •šifriranje •digitalno podpisovanje •več hkratnih naslovnikov
  10. 10. KLJUČ •ustvarimo ga sami •zasebni del zaščitimo z dolgim geslom •javni del objavimo (na pgp.mit.edu) •ne potrebujemo overitelja:
 web-of-trust
  11. 11. pub 1024D/686977E6 2010-05-07 Key fingerprint = A51F 19E8 4552 CA2A 43E6 B892 8865 BD44 6869 77E6 uid Gorazd Bozic <gorazd.bozic@arnes.si> uid Gorazd Bozic <gorazd.bozic@cert.si> sub 4096g/C851F3B1 2010-05-07 “prstni odtis” ključa identifikator ključa uporabniški identiteti
  12. 12. PROGRAMJE •Mozilla Thunderbird + Enigmail •Mac Mail + GPGTools •Evolution (Linux) •Mailvelope za spletno pošto •Outlook + Gpg4Win + 
 Outlook Privacy Plugin
  13. 13. pub 1024D/6C738AC3 2001-01-31 uid Gorazd <xmas@arnes.si> sub 1024g/2F46A6E9 2001-01-31 pub 1024D/8413A872 2003-02-17 [revoked: 2013-09-10] uid Gorazd Bozic <gorazd.bozic@arnes.si> sub 3072g/81ACDE89 2003-02-17 [revoked: 2013-09-10] pub 1024R/77B88E69 1995-09-28 [revoked: 2003-02-19] uid Gorazd Bozic <gorazd.bozic@arnes.si> pub 1024D/686977E6 2010-05-07 uid Gorazd Bozic <gorazd.bozic@arnes.si> uid Gorazd Bozic <gorazd.bozic@cert.si> sub 4096g/C851F3B1 2010-05-07 pub 1024D/A00A3CAA 2013-09-03 uid Gorazd Bozic <gorazd@bozic.org> sub 4096g/7EA080E6 2013-09-03 PGP
  14. 14. PRETEŽKOJE… CC-BY-NC lauren rushing @ flickr.com

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