java.security.spec

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## Package java.security.spec

Provides classes and interfaces for key specifications and algorithm parameter specifications.

See:
Description

Interface Summary
AlgorithmParameterSpec | A (transparent) specification of cryptographic parameters.
KeySpec | A (transparent) specification of the key material that constitutes a cryptographic key.

Class Summary
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.
EncodedKeySpec | This class represents a public or private key in encoded format.
PKCS8EncodedKeySpec | This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type `PrivateKeyInfo`.
PSSParameterSpec | This class specifies a parameter spec for RSA PSS encoding scheme, as defined in the PKCS#1 v2.1.
RSAKeyGenParameterSpec | This class specifies the set of parameters used to generate an RSA key pair.
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.1 encoding of a public key, encoded according to the ASN.1 type `SubjectPublicKeyInfo`.

Exception Summary
InvalidKeySpecException | This is the exception for invalid key specifications.
InvalidParameterSpecException | This is the exception for invalid parameter specifications.

## Package java.security.spec Description

Provides classes and interfaces for key specifications and algorithm parameter specifications.

A key specification is a transparent representation of the key material that constitutes a key. A key may be specified in an algorithm-specific way, or in an algorithm-independent encoding format (such as ASN.1). This package contains key specifications for DSA public and private keys, RSA public and private keys, PKCS #8 private keys in DER-encoded format, and X.509 public and private keys in DER-encoded format.

An algorithm parameter specification is a transparent representation of the sets of parameters used with an algorithm. This package contains an algorithm parameter specification for parameters used with the DSA algorithm.

## Package Specification

- PKCS #1: RSA Encryption Standard, Version 1.5, November 1993
- PKCS #8: Private-Key Information Syntax Standard, Version 1.2, November 1993
- Federal Information Processing Standards Publication (FIPS PUB) 186: Digital Signature Standard (DSS)

## Related Documentation

For documentation that includes information about algorithm parameter and key specifications, please see:

- Java Cryptography Architecture API Specification and Reference

Since:
  1.2

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