PDF4Java Reference Documentation
com.o2sol.pdf4java.core.security Package / PDFRc4SecurityHandler Class / getKeySize Method
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    getKeySize Method
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    Gets the size, in bits, of the secret key used by the security handler.
    RC4 supports only the following key sizes: 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120 and 128.
    Syntax
    public int getKeySize()

    Return Value

    The size, in bits, of the secret key used by the security handler.
    See Also