Supported formats

 

Keystore formats

Format
File
extension
What
KeyTool IUI
JKS .jks
.ks 		"Java keystore", SUN version of keystore.
JCEKS .jce "Java Cryptography Extension Keystore"
PKCS12 .p12
.pfx 		"Public Key Cryptography Standards #12"
BKS .bks "Bouncycastle Keystore", BouncyCastle's version of keystore
UBER .ubr "Bouncycastle UBER Keystore", more secure keystore

 

Certificate formats

Format
File
extension
What
KeyTool IUI
DER .crt
.cer 		"DER encoded", binary file.
PKCS7 .p7b "Public Key Cryptography Standards #7", binary file
PEM .pem "PEM encoded", printable PKCS#7, ascii file
PKCS10 .p10
.csr 		"Public Key Cryptography Standards #10", ascii file