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org.mozilla.jss.util
Class UTF8Converter
java.lang.Object org.mozilla.jss.util.UTF8Converter
public class UTF8Converter
- extends java.lang.Object
Class for converting between char arrays and byte arrays. The conversion is guaranteed (in optimized mode only) not to leave any data hanging around in memory unless there is a catastrophic VM error, which is useful for encoding passwords.
Constructor Summary | |
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UTF8Converter()
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Method Summary | |
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static void |
main(java.lang.String[] args)
Testing method |
static byte[] |
UnicodeToUTF8(char[] unicode)
Creates a new UTF8-encoded byte array representing the char[] passed in. |
protected static byte[] |
UnicodeToUTF8(char[] unicode,
boolean nullTerminate)
Do the work of the above functions. |
static byte[] |
UnicodeToUTF8NullTerm(char[] unicode)
Creates a new null-terminated UTF8-encoded byte array representing the char[] passed in. |
static void |
wipeBytes(byte[] array)
Wipes a byte array by setting all of its bytes to zero. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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UTF8Converter
public UTF8Converter()
Method Detail |
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UnicodeToUTF8
public static byte[] UnicodeToUTF8(char[] unicode) throws java.io.CharConversionException
- Creates a new UTF8-encoded byte array representing the
char[] passed in. The output array will NOT be null-terminated.
This call is safe for passwords; all internal buffers are cleared. The output array is the owned by the caller, who has responsibility for clearing it.
See http://www.stonehard.com/unicode/standard/ for the UTF-16 and UTF-8 standards.
- Parameters:
unicode
- An array of Unicode characters, which may have UCS4 characters encoded in UTF-16. This array must not be null.- Throws:
java.io.CharConversionException
- If the input characters are invalid.
UnicodeToUTF8NullTerm
public static byte[] UnicodeToUTF8NullTerm(char[] unicode) throws java.io.CharConversionException
- Creates a new null-terminated UTF8-encoded byte array representing the
char[] passed in.
This call is safe for passwords; all internal buffers are cleared. The output array is the owned by the caller, who has responsibility for clearing it.
See http://www.stonehard.com/unicode/standard/ for the UTF-16 and UTF-8 standards.
- Parameters:
unicode
- An array of Unicode characters, which may have UCS4 characters encoded in UTF-16. This array must not be null.- Throws:
java.io.CharConversionException
- If the input characters are invalid.
UnicodeToUTF8
protected static byte[] UnicodeToUTF8(char[] unicode, boolean nullTerminate) throws java.io.CharConversionException
- Do the work of the above functions.
- Throws:
java.io.CharConversionException
wipeBytes
public static void wipeBytes(byte[] array)
- Wipes a byte array by setting all of its bytes to zero.
- Parameters:
array
- The input array must not be null.
main
public static void main(java.lang.String[] args)
- Testing method
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