How to make keystore key for Google Play to publish

 Keystore key generation for you app


Android requires that all APKs be digitally signed with a certificate before they are installed on a device. Android studio has GUI facility to make keystore file (.jks or .keystore): A binary file that serves as a repository of certificates and private keys. There are i am showing simple steps to create this file using command line. While we have keystore file already generated by android studio on following path:

  • ~/.android/ on OS X and Linux
  • C:\Documents and Settings\user\.android\ on Windows XP
  • C:\Users\user\.android\ on Windows Vista and Windows 7, 8, and 10

but here we are going to create both for debug and release using command line to use in app.

Here we are taking example for our package is:
debug: com.example.test.debug
release:com.example.test

Note: 
1.) To use keytool just set path of your JDK/bin 
2.) test replace by your choice name of app name
3.) You can choose your password for debug and release like i kept here android and deepak123 respectively

Development:(PWD: android) - com.example.test.debug

————————————

Deepaks-MacBook-Air:app dsharma$ keytool -genkey -v -keystore debug.keystore -alias androiddebugkey -keyalg RSA -keysize 2048 -validity 10000

Deepaks-MacBook-Air:keystores dsharma$ keytool -genkey -v -keystore debug.keystore -alias androiddebugkey -keyalg RSA -keysize 2048 -validity 10000

Enter keystore password:  

Re-enter new password: 

What is your first and last name?

  [Unknown]:  Android Debug

What is the name of your organizational unit?

  [Unknown]:  Android

What is the name of your organization?

  [Unknown]:  Android

What is the name of your City or Locality?

  [Unknown]:  Jaipur

What is the name of your State or Province?

  [Unknown]:  Rajasthan

What is the two-letter country code for this unit?

  [Unknown]:  IN

Is CN=Android Debug, OU=Android, O=Android, L=Jaipur, ST=Rajasthan, C=IN correct?

  [no]:  y


Generating 2,048 bit RSA key pair and self-signed certificate (SHA256withRSA) with a validity of 10,000 days

for: CN=Android Debug, OU=Android, O=Android, L=Jaipur, ST=Rajasthan, C=IN

Enter key password for <androiddebugkey>

(RETURN if same as keystore password):  

Re-enter new password: 

[Storing debug.keystore]


Warning:

The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using "keytool -importkeystore -srckeystore debug.keystore -destkeystore debug.keystore -deststoretype pkcs12".


Keystore fingerprints and other details - development


Deepaks-MacBook-Air:keystores dsharma$ keytool -v -list -keystore debug.keystore

Enter keystore password:  

Keystore type: jks

Keystore provider: SUN


Your keystore contains 1 entry


Alias name: androiddebugkey

Creation date: 16 Feb, 2020

Entry type: PrivateKeyEntry

Certificate chain length: 1

Certificate[1]:

Owner: CN=Android Debug, OU=Android, O=Android, L=Jaipur, ST=Rajasthan, C=IN

Issuer: CN=Android Debug, OU=Android, O=Android, L=Jaipur, ST=Rajasthan, C=IN

Serial number: 373dc453

Valid from: Sun Feb 16 22:35:56 IST 2020 until: Thu Jul 04 22:35:56 IST 2047

Certificate fingerprints:

MD5:  D1:3E:E5:43:9E:10:8F:94:17:28:B1:C2:C7:4B:07:09

SHA1: A4:CE:1B:39:4B:1C:F0:8E:A9:14:28:5F:B0:FF:51:A5:AD:AF:79:D6

SHA256: BF:C7:81:BB:BA:C0:B6:76:14:8B:E8:F6:1F:E2:D2:6E:3C:FF:D5:33:74:81:1A:FD:A2:7A:F2:8C:19:C9:4B:E9

Signature algorithm name: SHA256withRSA

Subject Public Key Algorithm: 2048-bit RSA key

Version: 3


Extensions: 


#1: ObjectId: 2.5.29.14 Criticality=false

SubjectKeyIdentifier [

KeyIdentifier [

0000: 14 1C C4 12 C6 05 05 0A   54 CC 2A 07 5A D2 53 C6  ........T.*.Z.S.

0010: CE 76 98 66                                        .v.f

]

]




*******************************************

*******************************************




Warning:

The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using "keytool -importkeystore -srckeystore debug.keystore -destkeystore debug.keystore -deststoretype pkcs12".



Production:(PWD: deepak123) - com.example.test

————————————

Deepaks-MacBook-Air:keystores dsharma$ keytool -genkey -v -keystore test.keystore -alias testkeyalias -keyalg RSA -keysize 2048 -validity 10000

Enter keystore password:  

Re-enter new password: 

What is your first and last name?

  [Unknown]:  XXXXX Technologies

What is the name of your organizational unit?

  [Unknown]:  XXXXX Technologies

What is the name of your organization?

  [Unknown]:  XXXXXXX Technologies Pvt. Ltd.

What is the name of your City or Locality?

  [Unknown]:  Jaipur

What is the name of your State or Province?

  [Unknown]:  Rajasthan

What is the two-letter country code for this unit?

  [Unknown]:  IN

Is CN=XXXXXX Technologies, OU=XXXXX Technologies, O=XXXXX Technologies Pvt. Ltd., L=Jaipur, ST=Rajasthan, C=IN correct?

  [no]:  y


Generating 2,048 bit RSA key pair and self-signed certificate (SHA256withRSA) with a validity of 10,000 days

for: CN=XXXXXX Technologies, OU=XXXXXX Technologies, O=XXXXXX Technologies Pvt. Ltd., L=Jaipur, ST=Rajasthan, C=IN

Enter key password for <testkeyalias>

(RETURN if same as keystore password):  

Re-enter new password: 

[Storing test.keystore]


Warning:

The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using "keytool -importkeystore -srckeystore test.keystore -destkeystore test.keystore -deststoretype pkcs12".


Keystore fingerprints and other details - production


Deepaks-MacBook-Air:keystores dsharma$ keytool -v -list -keystore test.keystore 

Enter keystore password:  

Keystore type: jks

Keystore provider: SUN


Your keystore contains 1 entry


Alias name: testkeyalias

Creation date: 16 Feb, 2020

Entry type: PrivateKeyEntry

Certificate chain length: 1

Certificate[1]:

Owner: CN=XXXXXXX Technologies, OU= XXXXXXX Technologies, O= XXXXXXX Technologies Pvt. Ltd., L=Jaipur, ST=Rajasthan, C=IN

Issuer: CN= XXXXXXX Technologies, OU= XXXXXXX Technologies, O= XXXXXXX Technologies Pvt. Ltd., L=Jaipur, ST=Rajasthan, C=IN

Serial number: 37d41ecc

Valid from: Sun Feb 16 23:01:08 IST 2020 until: Thu Jul 04 23:01:08 IST 2047

Certificate fingerprints:

MD5:  3D:7E:28:18:6F:C6:AA:91:17:58:15:D4:CF:8D:37:84

SHA1: C2:2D:60:00:53:9D:57:33:A8:FB:B8:C9:F7:87:FD:4B:12:84:89:7E

SHA256: 22:62:27:7F:6C:F7:54:7C:AD:F4:6F:F6:86:A9:B6:C6:25:D0:89:C9:B2:D0:E5:40:74:FE:20:6C:E2:45:DB:EB

Signature algorithm name: SHA256withRSA

Subject Public Key Algorithm: 2048-bit RSA key

Version: 3


Extensions: 


#1: ObjectId: 2.5.29.14 Criticality=false

SubjectKeyIdentifier [

KeyIdentifier [

0000: B1 33 5E FA 6F 0C 4F 38   07 59 70 14 DE 18 B6 CC  .3^.o.O8.Yp.....

0010: 03 77 22 E5                                        .w".

]

]




*******************************************

*******************************************




Warning:

The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using "keytool -importkeystore -srckeystore test.keystore -destkeystore test.keystore -deststoretype pkcs12".



How you can use this in app


Create a keystore folder in you app folder of android like 

Release - <root project>/app/keystore/test.keystore

Debug - <root project>/app/debug.keystore


in app module build.gradle file:


signingConfigs {

        debug {

            storeFile file('debug.keystore')

            storePassword 'android'

            keyAlias 'androiddebugkey'

            keyPassword 'android'

        }

        release {

            storeFile file(MYAPP_RELEASE_STORE_FILE)

            storePassword MYAPP_RELEASE_STORE_PASSWORD

            keyAlias MYAPP_RELEASE_KEY_ALIAS

            keyPassword MYAPP_RELEASE_KEY_PASSWORD

        }

    }



In gradle.properties file


MYAPP_RELEASE_STORE_FILE=keystore/test.keystore

MYAPP_RELEASE_KEY_ALIAS=testkeyalias

MYAPP_RELEASE_STORE_PASSWORD=deepak123

MYAPP_RELEASE_KEY_PASSWORD=deepak123


Note: If git is public access then try to avoid commit on git this keystore file of release.



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