Package org.bouncycastle.crypto

Interface PasswordBasedDeriver<T>

Type Parameters:
T - the parameters type for the deriver.
public interface PasswordBasedDeriver<T>
Base interface for a password based deriver of bytes for symmetric keys.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static enum 
    PasswordBasedDeriver.KeyType
    The target key type we are trying to produce a key for.

  • Method Summary

    Modifier and Type
    Method
    Description
    byte[]
    deriveKey(PasswordBasedDeriver.KeyType keyType, int keySizeInBytes)
    Derive a key of the given keySizeInBytes length.
    byte[][]
    deriveKeyAndIV(PasswordBasedDeriver.KeyType keyType, int keySizeInBytes, int ivSizeInBytes)
    Derive a key of the given keySizeInBytes length and an iv of ivSizeInBytes length.
    T
    getParameters()
    Return the parameters for this deriver.

  • Method Details

    • getParameters

      T getParameters()
      Return the parameters for this deriver.
      Returns:
      the deriver's parameters.

    • deriveKey

      byte[] deriveKey(PasswordBasedDeriver.KeyType keyType, int keySizeInBytes)
      Derive a key of the given keySizeInBytes length.
      Parameters:
      keyType - type of key to be calculated.
      keySizeInBytes - the number of bytes to be produced.
      Returns:
      a byte array containing the raw key data.

    • deriveKeyAndIV

      byte[][] deriveKeyAndIV(PasswordBasedDeriver.KeyType keyType, int keySizeInBytes, int ivSizeInBytes)
      Derive a key of the given keySizeInBytes length and an iv of ivSizeInBytes length.
      Parameters:
      keyType - type of key to be calculated.
      keySizeInBytes - the number of bytes to be produced.
      ivSizeInBytes - the number of bytes to be produced.
      Returns:
      a 2 element byte[] array containing the raw key data in element 0, the iv in element 1.