# Java.Security.Spec Namespace

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This package provides the classes and interfaces needed to specify keys and parameters for encryption and signing algorithms.

## Classes

DSAParameterSpec |
This class specifies the set of parameters used with the DSA algorithm. |

DSAPrivateKeySpec |
This class specifies a DSA private key with its associated parameters. |

DSAPublicKeySpec |
This class specifies a DSA public key with its associated parameters. |

ECFieldF2m |
This immutable class defines an elliptic curve (EC) characteristic 2 finite field. |

ECFieldFp |
This immutable class defines an elliptic curve (EC) prime finite field. |

ECGenParameterSpec |
This immutable class specifies the set of parameters used for generating elliptic curve (EC) domain parameters. |

ECParameterSpec |
This immutable class specifies the set of domain parameters used with elliptic curve cryptography (ECC). |

ECPoint |
This immutable class represents a point on an elliptic curve (EC) in affine coordinates. |

ECPrivateKeySpec |
This immutable class specifies an elliptic curve private key with its associated parameters. |

ECPublicKeySpec |
This immutable class specifies an elliptic curve public key with its associated parameters. |

EllipticCurve |
This immutable class holds the necessary values needed to represent an elliptic curve. |

EncodedKeySpec |
This class represents a public or private key in encoded format. |

InvalidKeySpecException |
This is the exception for invalid key specifications. |

InvalidParameterSpecException |
This is the exception for invalid parameter specifications. |

MGF1ParameterSpec |
This class specifies the set of parameters used with mask generation function MGF1 in OAEP Padding and RSA-PSS signature scheme, as defined in the PKCS #1 v2.1 standard. |

PKCS8EncodedKeySpec |
This class represents the ASN. |

PSSParameterSpec |
This class specifies a parameter spec for RSA-PSS signature scheme, as defined in the PKCS#1 v2.1 standard. |

RSAKeyGenParameterSpec |
This class specifies the set of parameters used to generate an RSA key pair. |

RSAMultiPrimePrivateCrtKeySpec |
This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2. |

RSAOtherPrimeInfo |
This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2. |

RSAPrivateCrtKeySpec |
This class specifies an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency. |

RSAPrivateKeySpec |
This class specifies an RSA private key. |

RSAPublicKeySpec |
This class specifies an RSA public key. |

X509EncodedKeySpec |
This class represents the ASN. |

## Interfaces

IAlgorithmParameterSpec |
A (transparent) specification of cryptographic parameters. |

IECField |
This interface represents an elliptic curve (EC) finite field. |

IKeySpec |
A (transparent) specification of the key material that constitutes a cryptographic key. |