Check the contents of the Java certificate store


How to check the CA registered in the Java certificate store

Environmental information

・ CentOS7

Java installation

# yum install java-1.8.0-openjdk   #/lib/jvm/To java-1.8.0-openjdk is installed

Certificate store verification

Use the keytool command to operate the certificate store.

# keytool -list -v -storepass changeit -keystore lib/jvm/java-1.8.0-openjdk- > keystore #Output the contents of cacerts

# less cacerts

Keystore type: jks
Keystore provider: SUN

Your keystore contains 133 entries

Alias name: digicertassuredidrootca
Creation date: Jan 28, 2019
Entry type: trustedCertEntry

Owner: CN=DigiCert Assured ID Root CA,, O=DigiCert Inc, C=US
Issuer: CN=DigiCert Assured ID Root CA,, O=DigiCert Inc, C=US
Serial number: ce7e0e517d846fe8fe560fc1bf03039
Valid from: Fri Nov 10 00:00:00 UTC 2006 until: Mon Nov 10 00:00:00 UTC 2031
Certificate fingerprints:
         MD5:  87:CE:0B:7B:2A:0E:49:00:E1:58:71:9B:37:A8:93:72
         SHA1: 05:63:B8:63:0D:62:D7:5A:BB:C8:AB:1E:4B:DF:B5:A8:99:B2:4D:43
         SHA256: 3E:90:99:B5:01:5E:8F:48:6C:00:BC:EA:9D:11:1E:E7:21:FA:BA:35:5A:89:BC:F1:DF:69:56:1E:3D:C6:32:5C
         SHA256: 3E:90:99:B5:01:5E:8F:48:6C:00:BC:EA:9D:11:1E:E7:21:FA:BA:35:5A:89:BC:F1:DF:69:56:1E:3D:C6:32:5C
Signature algorithm name: SHA1withRSA
Subject Public Key Algorithm: 2048-bit RSA key
Version: 3


#1: ObjectId: Criticality=false
AuthorityKeyIdentifier [
KeyIdentifier [
0000: 45 EB A2 AF F4 92 CB 82   31 2D 51 8B A7 A7 21 9D  E.......1-Q...!.
0010: F3 6D C8 0F                                        .m..

#2: ObjectId: Criticality=true

#3: ObjectId: Criticality=true
KeyUsage [

#4: ObjectId: Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: 45 EB A2 AF F4 92 CB 82   31 2D 51 8B A7 A7 21 9D  E.......1-Q...!.
0010: F3 6D C8 0F                                        .m..

The information of the certificate authority is stored like this.


# -list
The contents of the keystore entry(To standard output)Output

# -storepass
Enter the keystore password
The default password is "change it"

# -keystore
Specify the keystore
The Java keystore is located below
・ Jre/lib/security/cacerts

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