Import java.io. *;
Import java.util. *;
Import java.security. *;
Import java.security.cert.certificate;
Public class ReadPFX {
public ReadPFX (){
}
//Convert to hexadecimal string
Public static string Byte2String(byte[] b) {
String hs =
String stmp =
for(int n = 0； N<b. length; n++) {
stmp =(Java . lang . integer . tohexstring(b[n]& amp； 0x ff))；
if(stmp . length()= = 1)hs = hs+" 0 "+stmp；
else hs = hs+stmp；
//if(n & lt； b . length- 1)hs = hs+":"；
}
Returns hs.touppercase ();
}
Public static byte [] String byte (integer) {
int temp = number
Byte[]b = new byte [4];
for(int I = b . length- 1； I>- 1; I-) {
B[i] = new integer (temp & amp0xff). byte value()； //Save the highest bit in the lowest bit.
temp = temp & gt& gt8; //Move 8 bits to the right
}
Return to b;
}
private key GetPvkformPfx(String strPfx，String strPassword){
Try {
KeyStore ks = KeyStore . getinstance(" pkcs 12 ")；
file inputstream fis = new file inputstream(strPfx)；
//If the keystore password is empty (""), then we must set it.
//to null, otherwise no! ! !
char[]n password = null；
if((str password = = null)| | str password . trim()。 Equal to ("") {
nPassword = null
}
other
{
nPassword = str password . tochararray()；
}
ks.load(fis，nPassword)；
fis . close()；
system . out . println(" keystore type = "+ks . gettype())；
//Now we cycle through all aliases, and we need aliases to get the key.
//This value seems to be the Friendly Name field in.
//details tab & lt； -Certificate window & lt- View & lt- Certificate
//Button & lt； -Content tab <- Internet options < -Tools menu
//In MS IE 6.
enumeration enumas = ks . aliases()；
String keyAlias = null
If (enumas.hasMoreElements())// We only read one certificate.
{
key alias =(String)enumas . nextelement()；
system . out . println(" alias =["+keyAlias+"]")；
}
//Now once we know the alias, we can get the key.
system . out . println(" is key entry = "+ks . iskey entry(keyAlias))；
private key prikey =(private key)ks . getkey(keyAlias，nPassword)；
certificate cert = ks . get certificate(keyAlias)；
public key pubkey = cert . get public key()；
system . out . println(" cert class = "+cert . getclass()。 getName())；
system . out . println(" cert = "+cert)；
system . out . println(" public key = "+pubkey ")；
System.out.println ("private key ="+prikey ");
Return to prikey
}
Capture (exception e)
{
e . printstacktrace()；
}
Returns null
}
}