diff options
Diffstat (limited to 'src/com/isode/stroke/stringcodecs/PBKDF2.java')
-rw-r--r-- | src/com/isode/stroke/stringcodecs/PBKDF2.java | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/com/isode/stroke/stringcodecs/PBKDF2.java b/src/com/isode/stroke/stringcodecs/PBKDF2.java new file mode 100644 index 0000000..547cbec --- /dev/null +++ b/src/com/isode/stroke/stringcodecs/PBKDF2.java @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2010, Isode Limited, London, England. + * All rights reserved. + */ +/* + * Copyright (c) 2010, Remko Tron¨on. + * All rights reserved. + */ +package com.isode.stroke.stringcodecs; + +import com.isode.stroke.base.ByteArray; + +public class PBKDF2 { + + public static ByteArray encode(ByteArray password, ByteArray salt, int iterations) { + ByteArray u = HMACSHA1.getResult(password, ByteArray.plus(salt, new ByteArray("\0\0\0\1"))); + ByteArray result = new ByteArray(u); + byte[] resultData = result.getData(); + int i = 1; + while (i < iterations) { + u = HMACSHA1.getResult(password, u); + for (int j = 0; j < u.getSize(); ++j) { + resultData[j] ^= u.getData()[j]; + } + ++i; + } + return result; + } +} |