gnu.crypto.key
public interface IKeyPairCodec
The visible methods of an object that knows how to encode and decode cryptographic asymmetric keypairs. Codecs are useful for (a) externalising public and private keys for storage and on-the-wire transmission, as well as (b) re-creating their internal Java representation from external sources.
Version: $Revision: 1.2 $
Field Summary | |
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int | RAW_FORMAT Constant identifying the Raw encoding format. |
Method Summary | |
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PrivateKey | decodePrivateKey(byte[] input) Decodes an instance of an external private key into its native Java representation. |
PublicKey | decodePublicKey(byte[] input) Decodes an instance of an external public key into its native Java representation. |
byte[] | encodePrivateKey(PrivateKey key) Encodes an instance of a private key for storage or transmission purposes. |
byte[] | encodePublicKey(PublicKey key) Encodes an instance of a public key for storage or transmission purposes. |
int | getFormatID() Returns the unique identifier (within this library) of the format used to externalise public and private keys. |
Decodes an instance of an external private key into its native Java representation.
Parameters: input the source of the externalised key to decode.
Returns: a concrete instance of a private key, reconstructed from the designated input.
Throws: IllegalArgumentException if the designated input does not contain a known representation of a private key for the format supported by the concrete codec.
Decodes an instance of an external public key into its native Java representation.
Parameters: input the source of the externalised key to decode.
Returns: a concrete instance of a public key, reconstructed from the designated input.
Throws: IllegalArgumentException if the designated input does not contain a known representation of a public key for the format supported by the concrete codec.
Encodes an instance of a private key for storage or transmission purposes.
Parameters: key the non-null key to encode.
Returns: a byte sequence representing the encoding of the designated key according to the format supported by this codec.
Throws: IllegalArgumentException if the designated key is not supported by this codec.
Encodes an instance of a public key for storage or transmission purposes.
Parameters: key the non-null key to encode.
Returns: a byte sequence representing the encoding of the designated key according to the format supported by this codec.
Throws: IllegalArgumentException if the designated key is not supported by this codec.
Returns the unique identifier (within this library) of the format used to externalise public and private keys.
Returns: the identifier of the format, the object supports.