Package org.mozilla.jss.util
Class UTF8Converter
java.lang.Object
org.mozilla.jss.util.UTF8Converter
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.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic void
Testing methodstatic 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.
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Constructor Details
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UTF8Converter
public UTF8Converter()
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Method Details
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UnicodeToUTF8
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:
CharConversionException
- If the input characters are invalid.
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UnicodeToUTF8NullTerm
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:
CharConversionException
- If the input characters are invalid.
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UnicodeToUTF8
protected static byte[] UnicodeToUTF8(char[] unicode, boolean nullTerminate) throws CharConversionException Do the work of the above functions.- Throws:
CharConversionException
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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.
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main
Testing method
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