File	Doc	Category	Size	Date	Package
PBEParametersGenerator.java	API Doc	Android 1.5 API	3870	Wed May 06 22:41:06 BST 2009	org.bouncycastle.crypto

PBEParametersGenerator

• java.lang.Object

Fields Summary
protected byte[]	password
protected byte[]	salt
protected int	iterationCount

Constructors Summary
protected PBEParametersGenerator() base constructor.

Methods Summary
public static byte[]	PKCS12PasswordToBytes(char[] password) converts a password to a byte array according to the scheme in PKCS12 (unicode, big endian, 2 zero pad bytes at the end). param password a character array reqpresenting the password. return a byte array representing the password. // BEGIN android-changed if (password != null && password.length > 0) { // +1 for extra 2 pad bytes. byte[] bytes = new byte[(password.length + 1) * 2]; for (int i = 0; i != password.length; i ++) { bytes[i * 2] = (byte)(password[i] >>> 8); bytes[i * 2 + 1] = (byte)password[i]; } return bytes; } else { return new byte[0]; } // END android-changed
public static byte[]	PKCS5PasswordToBytes(char[] password) converts a password to a byte array according to the scheme in PKCS5 (ascii, no padding) param password a character array reqpresenting the password. return a byte array representing the password. byte[] bytes = new byte[password.length]; for (int i = 0; i != bytes.length; i++) { bytes[i] = (byte)password[i]; } return bytes;
public abstract CipherParameters	generateDerivedMacParameters(int keySize) generate derived parameters for a key of length keySize, specifically for use with a MAC. param keySize the length, in bits, of the key required. return a parameters object representing a key.
public abstract CipherParameters	generateDerivedParameters(int keySize) generate derived parameters for a key of length keySize. param keySize the length, in bits, of the key required. return a parameters object representing a key.
public abstract CipherParameters	generateDerivedParameters(int keySize, int ivSize) generate derived parameters for a key of length keySize, and an initialisation vector (IV) of length ivSize. param keySize the length, in bits, of the key required. param ivSize the length, in bits, of the iv required. return a parameters object representing a key and an IV.
public int	getIterationCount() return the iteration count. return the iteration count. return iterationCount;
public byte[]	getPassword() return the password byte array. return the password byte array. return password;
public byte[]	getSalt() return the salt byte array. return the salt byte array. return salt;
public void	init(byte[] password, byte[] salt, int iterationCount) initialise the PBE generator. param password the password converted into bytes (see below). param salt the salt to be mixed with the password. param iterationCount the number of iterations the "mixing" function is to be applied for. this.password = password; this.salt = salt; this.iterationCount = iterationCount;