ciecleci/androidのOpenSSLに気をつけよう

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1. circleci/androidͷ OpenSSLʹؾΛ͚ͭΑ͏ @yamacraft

2. profile • @yamacraft (Wataru Yamada) • Mobile Application Engineer •

   LeadingMark, inc • team Y.G.E.(private) • Ұ෦دߘ → → →

3. αϯϓϧϓϩδΣΫτ https://github.com/yamacraft/android.RequestPermissions

4. લஔ͖ • ઌ΄ͲͷϓϩδΣΫτ͸Circle CI 1.0ͰϏϧυ͢Δ࢓૊ΈΛೖ Ε͍ͯͨ • Circle CI 2.0ͩͱϏϧυ΋ૣ͘ͳΔͱฉ͍ͨͷͰɺࢼ͠ʹରԠ

   ͯ͠ΈΑ͏ͱࢥͬͨ • ͪͳΈʹൿಗ৘ใ͸OpenSSLͰ҉߸Խͨ͠ϑΝΠϧʹೖΕͯ ͍Δʢ1.0࣌୅ʹެ͕ࣜҊ಺ͯͨ͠ํ๏Λ࠾༻ʣ • https://github.com/circleci/encrypted-files

5. Circle CI2.0Ͱઃఆͨ͠಺༰ • image͸ެࣜͷcircleci/androidΛ࢖༻ • OpenSSLͰ҉߸Խͨ͠ϑΝΠϧΛ෮ݩ͠ɺγ εςϜͷ؀ڥม਺ʹ૊ΈࠐΉ • ͋ͱ͸./gradlew build͢Δ͚ͩ

6. decryptͰ͖ͳ͍…

7. Ͳ͏ͯ͠… • circleci/android(apt)ͷOpenSSL͸ 1.1.0f • mac OS(homebrew)ͷOpenSSL͸1.0.2l • 1.1.0͔Βޓ׵ੑʹͪΐͬͱ໰୊ʢ࢓༷มߋʣ ͕͋ΔΒ͍͠…

8. ৄࡉ • OpenSSL1.1.0ͱҎલͷόʔδϣϯͱͷޓ׵ੑ • https://http2.try-and-test.net/openssl1_1_0_tips.html

9. ͰɺͲ͏ͨ͠ͷʁ • ҉߸ԽϑΝΠϧΛ࡞Δ࣌ʹɺҰํ޲ؔ਺Λ sha256ࢦఆ͢ΔΦϓγϣϯΛࢦఆͯ͠ੜ੒͢ Δͱ෮߸ԽͰ͖ΔΑ͏ʹͳΔ • openssl aes-256-cbc -md sha256

   -e -in secret-env-plain -out secret-env-cipher -k $KEY

10. ϏϧυͰ͖ͨʂ

11. ·ͱΊ OpenSSLͷόʔδϣϯҧ͍ʹ͸ؾΛ͚ͭΑ͏ʂ

12. ͓͠·͍