Module java.base

Package javax.crypto.spec

package javax.crypto.spec

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 Diffie-Hellman public and private keys, as well as key specifications for DES, Triple DES, and PBE secret keys.

An algorithm parameter specification is a transparent representation of the sets of parameters used with an algorithm. This package contains algorithm parameter specifications for parameters used with the Diffie-Hellman, DES, Triple DES, PBE, RC2 and RC5 algorithms.

• PKCS #1: RSA Cryptography Specifications, Version 2.2 (RFC 8017)
• PKCS #3: Diffie-Hellman Key-Agreement Standard, Version 1.4, November 1993.
• PKCS #5: Password-Based Encryption Standard, Version 1.5, November 1993.
• Federal Information Processing Standards Publication (FIPS PUB) 46-2: Data Encryption Standard (DES)

Related Documentation

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

• Java Cryptography Architecture (JCA) Reference Guide
• How to Implement a Provider in the Java Cryptography Architecture

Since:

1.4

Related Packages

Package	Description
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.interfaces	Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.

Classes

Class	Description
ChaCha20ParameterSpec	This class specifies the parameters used with the ChaCha20 algorithm.
DESedeKeySpec	This class specifies a DES-EDE ("triple-DES") key.
DESKeySpec	This class specifies a DES key.
DHGenParameterSpec	This class specifies the set of parameters used for generating Diffie-Hellman (system) parameters for use in Diffie-Hellman key agreement.
DHParameterSpec	This class specifies the set of parameters used with the Diffie-Hellman algorithm, as specified in PKCS #3: Diffie-Hellman Key-Agreement Standard.
DHPrivateKeySpec	This class specifies a Diffie-Hellman private key with its associated parameters.
DHPublicKeySpec	This class specifies a Diffie-Hellman public key with its associated parameters.
GCMParameterSpec	Specifies the set of parameters required by a Cipher using the Galois/Counter Mode (GCM) mode.
IvParameterSpec	This class specifies an initialization vector (IV).
OAEPParameterSpec	This class specifies the set of parameters used with OAEP Padding, as defined in the PKCS#1 v2.2 standard.
PBEKeySpec	A user-chosen password that can be used with password-based encryption (PBE).
PBEParameterSpec	This class specifies the set of parameters used with password-based encryption (PBE), as defined in the PKCS #5 standard.
PSource	This class specifies the source for encoding input P in OAEP Padding, as defined in the PKCS#1 v2.2 standard.
PSource.PSpecified	This class is used to explicitly specify the value for encoding input P in OAEP Padding.
RC2ParameterSpec	This class specifies the parameters used with the RC2 algorithm.
RC5ParameterSpec	This class specifies the parameters used with the RC5 algorithm.
SecretKeySpec	This class specifies a secret key in a provider-independent fashion.