Cryptography Tutorials - Herong's Tutorial Examples - v5.42, by Herong Yang
"keytool" Importing CA's Own Certificate
This section provides a tutorial example on how to import CA's certificate generated by 'OpenSSL' into a 'keystore' file using 'keytool'
When Maria receives my CA self-signed public key certificate file, she needs to imported it into her keystore file with the "keytool -importcert" command as shown below:
herong> keytool -importcert -alias herong_crt -keypass keypass
-file herong.crt -keystore maria.jks -storepass jkspass
Owner: EMAILADDRESS=herongyang.com, CN=Herong Yang,
OU=HY Unit, O=HY Company, L=HY City, ST=HY State, C=HY
Issuer: EMAILADDRESS=herongyang.com, CN=Herong Yang,
OU=HY Unit, O=HY Company, L=HY City, ST=HY State, C=HY
Serial number: 0
Valid from: Sun Apr 1:42:10 EDT 2007
until: Wed Mar 29 23:42:10 EDT 2017
Certificate fingerprints:
MD5: 2D:95:8D:5F:0F:4A:9B:CC:A2:69:61:F6:22:AE...
SHA1: 1F:BB:C7:78:97:AC:C8:BF:7B:A4:88:DF:B5:62...
Signature algorithm name: MD5withRSA
Version: 3
Extensions:
#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
...
[EMAILADDRESS=herongyang.com, CN=Herong Yang, OU=HY Unit,
O=HY Company, L=HY City, ST=HY State, C=HY]
SerialNumber: [ 00]
]
Trust this certificate? [no]: yes
Certificate was added to keystore
Notes on what Maria did:
Want to see if the certificate was imported correctly or not? Try this "keytool -list" command:
herong> keytool -list -keystore maria.jks -storepass jkspass Keystore type: JKS Keystore provider: SUN Your keystore contains 2 entries maria_key, Apr 1, 2007, PrivateKeyEntry, Certificate fingerprint (MD5): 54:5A:E8:77:30:82:B4:EB:C... herong_crt, Apr 1, 2007, trustedCertEntry, Certificate fingerprint (MD5): C1:6C:FE:38:F7:0F:71:23:3...
As we can see, my CA certificate was imported ok and stored as a "trustedCertEntry". So certificates generated by "OpenSSL" is compatible with "keytool" certificate format.
If Maria made a mistake when import my certificate, she could use this command to delete my certificate from her keystore file:
herong> keytool -delete -alias herong_crt -keystore maria.jks -storepass jkspass
Now Maria is ready to import her own public key certificate signed by me as described in the next section.
Table of Contents
Introduction to AES (Advanced Encryption Standard)
DES Algorithm - Illustrated with Java Programs
DES Algorithm Java Implementation
DES Algorithm - Java Implementation in JDK JCE
DES Encryption Operation Modes
PHP Implementation of DES - mcrypt
Blowfish - 8-Byte Block Cipher
Secret Key Generation and Management
Cipher - Secret Key Encryption and Decryption
RSA Implementation using java.math.BigInteger Class
Introduction of DSA (Digital Signature Algorithm)
Java Default Implementation of DSA
Private key and Public Key Pair Generation
PKCS#8/X.509 Private/Public Encoding Standards
Cipher - Public Key Encryption and Decryption
OpenSSL Introduction and Installation
OpenSSL Generating and Managing RSA Keys
OpenSSL Generating and Signing CSR
OpenSSL Validating Certificate Path
"keytool" and "keystore" from JDK
►"OpenSSL" Signing CSR Generated by "keytool"
"OpenSSL" Acting as a CA (Certificate Authority)
"OpenSSL" Generating CA's Private Key
"OpenSSL" Self-Signing CA's Public Key
"keytool" Generating Maria's Private Key
"keytool" Generating Maria's CSR
"OpenSSL" Managing Serial Numbers when Signing CSR
►"keytool" Importing CA's Own Certificate
""keytool" Importing Maria's Certificate Signed by CA
Migrating Keys from "keystore" to "OpenSSL" Key Files
Certificate X.509 Standard and DER/PEM Formats
Migrating Keys from "OpenSSL" Key Files to "keystore"