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flutter_secure_storageͱ
AndroidόοΫΞοϓͷҙ
potatotips #86 iOS / Android։ൃTipsڞ༗ձ
2024/02/07
౻
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ࣗݾհ
● ౻ (mthiroshi)
● ΤΩαΠτגࣜձࣾ
● ϨγϐαΠτʮEɾϨγϐʯΛ୲
● X (چTwitter) ΞΧϯτɿmthiroshi_4o
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ྉཧͷϓϩ͕࡞Δ؆୯ϨγϐαΠτ
ʮEɾϨγϐʯ
● Web, iOS, AndroidͰఏڙ
● 202310݄ʹ iOS / Android ωΠςΟϒ
͔Β Flutter ʹϦϓϨʔε
○ ΤΩαΠτͰ Flutter ϦϓϨʔεΛ
ਪਐத
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flutter_secure_storage ύοέʔδ
● ΞϓϦͷσʔλΛ҉߸Խͯ҆͠શʹอଘ͢ΔͨΊͷϓϥάΠϯ
● Android SharedPreference ʹ҉߸Խͯ͠อଘ͞ΕΔ
● iOS KeyChain ʹอଘ͞ΕΔ
● EɾϨγϐͰɺAPIͷΞΫηετʔΫϯͷอଘʹར༻
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
// Create storage
final storage = new FlutterSecureStorage();
// Read value
String value = await storage.read(key: key);
// Read all values
Map allValues = await storage.readAll();
// Delete value
await storage.delete(key: key);
// Delete all
await storage.deleteAll();
// Write value
await storage.write(key: key, value: value);
Ҿ༻:https://pub.dev/packages/flutter_secure_storage#getting-started
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ϋϚͬͨ
● Ϣʔβʔ͔Βෆ۩߹ใࠂ
ʮػछมߋΛͨ͠ΒΞϓϦ͕ىಈͰ͖ͳ͘ͳͬͨɻʯ
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PlatformException(Exception encountered, read, javax.crypto.BadPaddingException:
error:1e000065:Cipher functions:OPENSSL_internal:BAD_DECRYPT at
com.android.org.conscrypt.NativeCrypto.EVP_CipherFinal_ex(Native Method) at
com.android.org.conscrypt.OpenSSLEvpCipher.doFinalInternal(OpenSSLEvpCipher.java:15
2) at com.android.org.conscrypt.OpenSSLCipher.engineDoFinal(OpenSSLCipher.java:374)
at javax.crypto.Cipher.doFinal(Cipher.java:2056) at l7.h.b(Unknown Source:35) at
k7.a.c(Unknown Source:11) at k7.a.k(Unknown Source:17) at k7.e$b.run(Unknown
Source:232) at android.os.Handler.handleCallback(Handler.java:942) at
android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loopOnce(Looper.java:346) at android.os.Looper.loop(Looper.java:475) at
android.os.HandlerThread.run(HandlerThread.java:67) , null)
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https://github.com/mogol/flutter_secure_storage/issues/541
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Issue ͔ΒΘ͔ͬͨ͜ͱ
● Android ͷόοΫΞοϓػೳɺσʔλΛ҉߸Խͯ͠όοΫΞοϓ
● ҉߸ԽʹΘΕΔʮ҉߸ԽΩʔʯͷ༷
○ ͷΈͰΘΕΔʢ࿙ӮରࡦͱࢥΘΕΔʣ
○ ΞϓϦΛ࠶Πϯετʔϧͨ͠߹ʹ৽͘͠ੜ
● IssueͷέʔεͰɺόοΫΞοϓσʔλΛ෮ݩ͢Δࡍʹɺ৽͘͠ੜ͞Εͨ
҉߸ԽΩʔΛͬͨͨΊྫ֎͕ى͖Δɻ
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No content
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Issue ͔ΒΘ͔ͬͨ͜ͱ
● Android ͷόοΫΞοϓػೳɺσʔλΛ҉߸Խͯ͠όοΫΞοϓ
● ҉߸ԽʹΘΕΔʮ҉߸ԽΩʔʯͷ༷
○ ͷΈͰΘΕΔʢ࿙ӮରࡦͱࢥΘΕΔʣ
○ ΞϓϦΛ࠶Πϯετʔϧͨ͠߹ʹ৽͘͠ੜ
● IssueͷέʔεͰɺόοΫΞοϓσʔλΛ෮ݩ͢Δࡍʹɺ৽͘͠ੜ͞Εͨ
҉߸ԽΩʔΛͬͨͨΊྫ֎͕ى͖Δɻ
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ࠓճͷෆ۩߹ͷܦҢ
● APIͷΞΫηετʔΫϯΛSecureStorageʹอଘ
● ػछมߋͷࡍʹɺAndroidͷόοΫΞοϓػೳʹΑͬͯɺ৽ʹ҉߸Խ
͞ΕͨΞΫηετʔΫϯ͕Ҡߦ
● ৽Ͱɺ҉߸ԽʹΘΕͨͷͰͳ͍҉߸ԽΩʔʹΑͬͯ෮߸ԽΛ
ࢼΈͨͨΊྫ֎͕ൃੜ
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ෆ۩߹ͷղܾํ๏
● ΞΫηετʔΫϯΛ SecureStorage ͔Βऔಘ͢Δ࣌ʹྫ֎͕ى͖ͨ߹ɺ
ΞΫηετʔΫϯΛ࠶ൃߦ
● Android ͷόοΫΞοϓػೳͷઃఆʹ flutter_secure_storage Λআ֎͢Δઃఆ
ΛՃ
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android:fullBackupContent="@xml/backup_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name">
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·ͱΊ
● flutter_secure_storage
○ σʔλΛ҉߸Խͯ͠อଘ͢ΔϓϥάΠϯ
○ Android όοΫΞοϓػೳ͔Βআ֎͢Δ
● flutter_secure_storage ͷ༷ɺѻ͏σʔλͷಛੑΛߟྀͯ͠ઃܭ࣮Λ
͢Δ