OpenPGP Library for Java

What's New in OpenPGP Library for Java 2.5.7

A key change in this release is that by default expired and revoked public keys are not accepted for encryption. If you still wish to use such keys you will have to enable them by calling PGPLib.setUseExpiredKeys(true) and PGPLib.setUseRevokedKeys(true)

• Fixed: cleanup of half encrypted files after an exception for all methods.
• Fixed: importing keys from PGP 6.5 into a KeyStore
• Modified: KeyStore.importPrivateKey now throws also NoPrivateKeyFoundException (extends PGPException) if the specified file does not contain a private key.
• Added method static KeyStore.checkPassword(keystoreFile, password) – checks is a given password for a keystore file correct.
• Added method PGPLib.decryptAndVerifyFileTo – decrypts a file content with its original name(s) into a folder
• Added method PGPLib.decryptAndVerifyStreamTo – decrypts a stream content with its original name(s) into a folder
• Added method PGPLib.setUseExpiredKeys(true) – switches on/off the check are the encryption keys expired
• Added method PGPLib.setUseRevokedKeys(true) – switches on/off the check are the encryption keys revoked
• Added method PGPLib.isUseExpiredKeys() – returns the state of the check are the encryption keys expired
• Added method PGPLib.isUseRevokedKeys() – returns the state of the check are the encryption keys revoked
• Added method KeyPairInformation.checkPassword(password) – checks is a given password for a private key correct.
• Added method KeyPairInformation.hasPrivateKey() – returns is there a private key in this key pair.
• Added method KeyPairInformation.isExpired() – indicates is the public key expired
• Added method KeyPairInformation.isExpiredOnDate(java.util.Date) – checks will the key be expired on a given date
• New Exception: Added class com.didisoft.pgp.exceptions.NonPGPDataException (extends PGPException) thrown from all decrypt and decryptAndVerify methods when the supplied for decryption data is not an OpenPGP message.
• New Exception: Added class com.didisoft.pgp.exceptions.KeyIsExpiredException (extends PGPException) thrown from all encrypt and signAndEncrypt methods when the supplied public key is expired. Can be suppressed with PGPLib.setUseExpiredKeys(true)
• New Exception: Added class com.didisoft.pgp.exceptions.KeyIsRevokedException (extends PGPException) thrown from all encrypt and signAndEncrypt methods when the supplied public key is revoked. Can be suppressed with PGPLib.setUseRevokedKeys(true)

OpenPGP Library for Java Features

• Pure Java OpenPGP SDK
• User-friendlyAPI in few lines of code
• OpenPGP and GnuPG compatible
• Works on Linux, Unix, Windows, Mac OS X and all systems with installed Java 1.4+ environment
• Royalty free distribution

OpenPGP for Java includes examples for:

Most common functions

• Encrypt
• Decrypt
• Sign
• Verify
• Sign and Encrypt
• Decrypt and Verify
• Clear text sign

KeyStore and key generation

• Generate RSA keys
• Generate DH/DSS keys
• Import keys
• Export keys
• Delete keys
• Change private key password

Key revocation

• Introduction to OpenPGP key revocation
• Revoke key directly
• Revocation certificate
• Designated revoker

Advanced Topics

• Set preferred cipher (symmetric key algorithm)
• Set preferred compression
• Set preferred hashing