Bouncy Castle Cryptography Library 1.80 · org.bouncycastle.openpgp.operator.bc.BcPublicKeyDataDecryptorFactory

Modifier and Type	Class and Description
private static interface	BcPublicKeyDataDecryptorFactory.PublicKeyParametersOperation

Modifier and Type	Field and Description
private static final BcPGPKeyConverter	KEY_CONVERTER
private final PGPPrivateKey	pgpPrivKey

Access	Constructor and Description
public	BcPublicKeyDataDecryptorFactory(PGPPrivateKey pgpPrivKey)

Method Summary

Modifier and Type	Method and Description
public PGPDataDecryptor	createDataDecryptor(boolean `true` if the packet to be decrypted has integrity checking enabled. withIntegrityPacket, int the identifier of the `encryption algorithm` to decrypt with. encAlgorithm, byte[] the bytes of the key for the cipher. key) Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `SED` or `v1 SEIPD` packets.
public PGPDataDecryptor	createDataDecryptor(AEADEncDataPacket AEAD encrypted data packet aeadEncDataPacket, PGPSessionKey decrypted session key sessionKey) Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `AEAD Encrypted Data` packets.
public PGPDataDecryptor	createDataDecryptor(SymmetricEncIntegrityPacket version 2 symmetrically encrypted integrity-protected data packet using AEAD. seipd, PGPSessionKey decrypted session key sessionKey) Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `v2 SEIPD` packets.
private static BufferedAsymmetricBlockCipher	getBufferedAsymmetricBlockCipher(int keyAlgorithm, AsymmetricKeyParameter privKey)
private byte[]	getSessionData(byte[] enc, AsymmetricKeyParameter privKey, int pLen, int hashAlgorithm, int symmetricKeyAlgorithm, RawAgreement agreement, String algorithmName, boolean includesSesKeyAlg, BcPublicKeyDataDecryptorFactory.PublicKeyParametersOperation pkp)
private void	processEncodedMpi(BufferedAsymmetricBlockCipher c1, int size, byte[] tmp, byte[] bi)
private byte[]	recoverECDHSessionData(byte[][] secKeyData, AsymmetricKeyParameter privKey)
private byte[]	recoverElgamalSessionData(int keyAlgorithm, byte[][] secKeyData, AsymmetricKeyParameter privKey)
private byte[]	recoverRSASessionData(int keyAlgorithm, byte[][] secKeyData, AsymmetricKeyParameter privKey)
public byte[]	recoverSessionData(int public key algorithm keyAlgorithm, byte[][] encrypted session key data secKeyData, int version of the PKESK packet pkeskVersion) Implements org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory.recoverSessionData. Recover the plain session info by decrypting the encrypted session key.
private static byte[]	unwrapSessionData(byte[] keyEnc, int symmetricKeyAlgorithm, KeyParameter key)

Inherited from org.bouncycastle.openpgp.operator.AbstractPublicKeyDataDecryptorFactory:: checkRange containsSKAlg prependSKAlgorithmToSessionData recoverSessionData recoverSessionData

KEY_CONVERTER	back to summary
private static final BcPGPKeyConverter KEY_CONVERTER

pgpPrivKey	back to summary
private final PGPPrivateKey pgpPrivKey

BcPublicKeyDataDecryptorFactory	back to summary
public BcPublicKeyDataDecryptorFactory(PGPPrivateKey pgpPrivKey)

Method Detail

createDataDecryptor back to summary

createDataDecryptor	back to summary
public PGPDataDecryptor createDataDecryptor(boolean withIntegrityPacket, int encAlgorithm, byte[] key) throws PGPException Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `SED` or `v1 SEIPD` packets. Parameters withIntegrityPacket:boolean `true` if the packet to be decrypted has integrity checking enabled. encAlgorithm:int the identifier of the `encryption algorithm` to decrypt with. key:byte[] the bytes of the key for the cipher. Returns:PGPDataDecryptor a data decryptor that can decrypt (and verify) streams of encrypted data. Annotations @Override Exceptions PGPException: if an error occurs initialising the decryption and integrity checking functions.

public PGPDataDecryptor createDataDecryptor(boolean withIntegrityPacket, int encAlgorithm, byte[] key) throws PGPException

Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Constructs a data decryptor for SED or v1 SEIPD packets.

Parameters

withIntegrityPacket:boolean: true if the packet to be decrypted has integrity checking enabled.
encAlgorithm:int: the identifier of the encryption algorithm to decrypt with.
key:byte[]: the bytes of the key for the cipher.

Returns:PGPDataDecryptor

a data decryptor that can decrypt (and verify) streams of encrypted data.

Annotations

@Override

Exceptions

PGPException:: if an error occurs initialising the decryption and integrity checking functions.

createDataDecryptor back to summary

createDataDecryptor	back to summary
public PGPDataDecryptor createDataDecryptor(AEADEncDataPacket aeadEncDataPacket, PGPSessionKey sessionKey) throws PGPException Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `AEAD Encrypted Data` packets. This method is used with OpenPGP v5 AEAD. Parameters aeadEncDataPacket:AEADEncDataPacket AEAD encrypted data packet sessionKey:PGPSessionKey decrypted session key Returns:PGPDataDecryptor a data decryptor that can decrypt (and verify) streams of encrypted data. Annotations @Override Exceptions PGPException: if an error occurs initialising the decryption and integrity checking functions.

public PGPDataDecryptor createDataDecryptor(AEADEncDataPacket aeadEncDataPacket, PGPSessionKey sessionKey) throws PGPException

Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Constructs a data decryptor for AEAD Encrypted Data packets. This method is used with OpenPGP v5 AEAD.

Parameters

aeadEncDataPacket:AEADEncDataPacket: AEAD encrypted data packet
sessionKey:PGPSessionKey: decrypted session key

Returns:PGPDataDecryptor

a data decryptor that can decrypt (and verify) streams of encrypted data.

Annotations

@Override

Exceptions

PGPException:: if an error occurs initialising the decryption and integrity checking functions.

createDataDecryptor back to summary

createDataDecryptor	back to summary
public PGPDataDecryptor createDataDecryptor(SymmetricEncIntegrityPacket seipd, PGPSessionKey sessionKey) throws PGPException Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor. Constructs a data decryptor for `v2 SEIPD` packets. This method is used with OpenPGP v6 AEAD. Parameters seipd:SymmetricEncIntegrityPacket version 2 symmetrically encrypted integrity-protected data packet using AEAD. sessionKey:PGPSessionKey decrypted session key Returns:PGPDataDecryptor a data decryptor that can decrypt (and verify) streams of encrypted data. Annotations @Override Exceptions PGPException: if an error occurs initialising the decryption and integrity checking functions.

public PGPDataDecryptor createDataDecryptor(SymmetricEncIntegrityPacket seipd, PGPSessionKey sessionKey) throws PGPException

Implements org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Doc from org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory.createDataDecryptor.

Constructs a data decryptor for v2 SEIPD packets. This method is used with OpenPGP v6 AEAD.

Parameters

seipd:SymmetricEncIntegrityPacket: version 2 symmetrically encrypted integrity-protected data packet using AEAD.
sessionKey:PGPSessionKey: decrypted session key

Returns:PGPDataDecryptor

a data decryptor that can decrypt (and verify) streams of encrypted data.

Annotations

@Override

Exceptions

PGPException:: if an error occurs initialising the decryption and integrity checking functions.

getBufferedAsymmetricBlockCipher	back to summary
private static BufferedAsymmetricBlockCipher getBufferedAsymmetricBlockCipher(int keyAlgorithm, AsymmetricKeyParameter privKey) throws PGPException

getSessionData	back to summary
private byte[] getSessionData(byte[] enc, AsymmetricKeyParameter privKey, int pLen, int hashAlgorithm, int symmetricKeyAlgorithm, RawAgreement agreement, String algorithmName, boolean includesSesKeyAlg, BcPublicKeyDataDecryptorFactory.PublicKeyParametersOperation pkp) throws PGPException, InvalidCipherTextException

processEncodedMpi	back to summary
private void processEncodedMpi(BufferedAsymmetricBlockCipher c1, int size, byte[] tmp, byte[] bi)

recoverECDHSessionData	back to summary
private byte[] recoverECDHSessionData(byte[][] secKeyData, AsymmetricKeyParameter privKey) throws PGPException, IOException, InvalidCipherTextException

recoverElgamalSessionData	back to summary
private byte[] recoverElgamalSessionData(int keyAlgorithm, byte[][] secKeyData, AsymmetricKeyParameter privKey) throws PGPException, InvalidCipherTextException

recoverRSASessionData	back to summary
private byte[] recoverRSASessionData(int keyAlgorithm, byte[][] secKeyData, AsymmetricKeyParameter privKey) throws PGPException, InvalidCipherTextException

recoverSessionData	back to summary
public byte[] recoverSessionData(int keyAlgorithm, byte[][] secKeyData, int pkeskVersion) throws PGPException Implements org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory.recoverSessionData. Doc from org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory.recoverSessionData. Recover the plain session info by decrypting the encrypted session key. This method returns the decrypted session info as-is (without prefixing missing cipher algorithm), so the return value is: [sym-alg]?[session-key][checksum]? Parameters keyAlgorithm:int public key algorithm secKeyData:byte[][] encrypted session key data pkeskVersion:int version of the PKESK packet Returns:byte[] decrypted session info Annotations @Override

recoverSessionData

back to summary

public byte[] recoverSessionData(int keyAlgorithm, byte[][] secKeyData, int pkeskVersion) throws PGPException

Implements org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory.recoverSessionData.

Doc from org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory.recoverSessionData.

Recover the plain session info by decrypting the encrypted session key. This method returns the decrypted session info as-is (without prefixing missing cipher algorithm), so the return value is:

[sym-alg]?[session-key][checksum]?

Parameters

keyAlgorithm:int: public key algorithm
secKeyData:byte[][]: encrypted session key data
pkeskVersion:int: version of the PKESK packet

Returns:byte[]

decrypted session info

Annotations

@Override

unwrapSessionData	back to summary
private static byte[] unwrapSessionData(byte[] keyEnc, int symmetricKeyAlgorithm, KeyParameter key) throws PGPException, InvalidCipherTextException

public Class BcPublicKeyDataDecryptorFactory

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Interface BcPublicKeyDataDecryptorFactory.PublicKeyParametersOperation

Method Summary

Method Detail