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.

## Package Specification

- 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:

- JavaTM Cryptography Architecture API Specification and Reference
- How to Implement a Provider for the JavaTM Cryptography Architecture

@since 1.4