How to use a certificate for encryption in java se -


i've code app in java let user write text , use certificate encrypt string , show (encrypted) in textfield. coded graphical interface i've searched how use certificate encrypt/decrypt variable in java , didn't find case ! help.

your certificate can exported file (eg.: "mycert.cer"). use api provided jca (java cryptography architecture) manipulate it.

for instance, read certificate, use 

fileinputstream fis = new fileinputstream("mycert.cer"); certificatefactory cf = certificatefactory.getinstance("x509"); x509certificate crt = (x509certificate) cf.generatecertificate(fis);

from public key of x509certificate object, encrypt text. need here , here.


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