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* RandomSource: Fix seeding from /dev/urandom

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zzz
2011-02-03 15:46:24 +00:00
parent db93421599
commit ee6730fdaa
1 changed files with 8 additions and 4 deletions
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12
core/java/src/net/i2p/util/RandomSource.java
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@@ -146,14 +146,18 @@ public class RandomSource extends SecureRandom implements EntropyHarvester {
public final boolean initSeed(byte buf[]) {
// why urandom? because /dev/random blocks, and there are arguments
// suggesting such blockages are largely meaningless
boolean ok = seedFromFile("/dev/urandom", buf);
boolean ok = seedFromFile(new File("/dev/urandom"), buf);
// we merge (XOR) in the data from /dev/urandom with our own seedfile
ok = seedFromFile("prngseed.rnd", buf) || ok;
File localFile = new File(_context.getConfigDir(), SEEDFILE);
ok = seedFromFile(localFile, buf) || ok;
return ok;
}
private static final boolean seedFromFile(String filename, byte buf[]) {
File f = new File(I2PAppContext.getGlobalContext().getConfigDir(), filename);
/**
* @param f absolute path
* @return success
*/
private static final boolean seedFromFile(File f, byte buf[]) {
if (f.exists()) {
FileInputStream fis = null;
try {