security - Java Applet Windows-MY keystore PrivateKey getEncoded is null -

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according understanding of documentation there should possbile access microsoft windows keystore service "windows-my".

when load privatekey keystore null privatekey.getencoded().

how can access privatekey windows keystore?

trying access with:

keystore ks = keystore.getinstance("windows-my"); ks.load(null); privatekey privatekey = (privatekey) ks.getkey("mykeyalias", null); system.out.println("privatekey:" + privatekey)); system.out.println("getencoded:" + privatekey.getencoded());

output i'm getting:

privatekey:rsaprivatekey [size=2048 bits, type=exchange, container=mykeyalias] getencoded:null

using jre 1.8 , tested win7 , 8.1

the mscapi not seem support private key export.

first of key.getencoded() javadoc specifies:

returns key in primary encoding format, or null if key not support encoding.

and if @ source code of java crypto provider mscapi, getencoded() method returns null in cases.


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