Example usage for javax.crypto.spec RC2ParameterSpec RC2ParameterSpec

Introduction

In this page you can find the example usage for javax.crypto.spec RC2ParameterSpec RC2ParameterSpec.

Prototype

public RC2ParameterSpec(int effectiveKeyBits, byte[] iv) 

Source Link

Document

Constructs a parameter set for RC2 from the given effective key size (in bits) and an 8-byte IV.

Usage

From source file:it.scoppelletti.programmerpower.security.spi.RC2ParameterSpecFactory.java

public AlgorithmParameterSpec newInstance(Properties props, String prefix) {
    int keySize;/*from   w ww .j a  v a 2 s.  c  om*/
    String name, value;
    byte[] iv;
    AlgorithmParameterSpec param;

    name = Strings.concat(prefix, RC2ParameterSpecFactory.PROP_KEYSIZE);
    value = props.getProperty(name);
    if (Strings.isNullOrEmpty(value)) {
        throw new ArgumentNullException(name);
    }

    keySize = Integer.parseInt(value);

    name = Strings.concat(prefix, RC2ParameterSpecFactory.PROP_IV);
    value = props.getProperty(name);
    if (Strings.isNullOrEmpty(value)) {
        iv = null;
    } else {
        try {
            iv = Hex.decodeHex(value.toCharArray());
        } catch (DecoderException ex) {
            throw SecurityUtils.toSecurityException(ex);
        }
    }

    if (iv != null) {
        param = new RC2ParameterSpec(keySize, iv);
    } else {
        param = new RC2ParameterSpec(keySize);
    }

    return param;
}

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