sop-java/sop-java/src/main/java/sop/operation/Decrypt.java

119 lines
3.4 KiB
Java

// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package sop.operation;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import sop.DecryptionResult;
import sop.ReadyWithResult;
import sop.SessionKey;
import sop.exception.SOPGPException;
public interface Decrypt {
/**
* Makes the SOP consider signatures before this date invalid.
*
* @param timestamp timestamp
* @return builder instance
*/
Decrypt verifyNotBefore(Date timestamp)
throws SOPGPException.UnsupportedOption;
/**
* Makes the SOP consider signatures after this date invalid.
*
* @param timestamp timestamp
* @return builder instance
*/
Decrypt verifyNotAfter(Date timestamp)
throws SOPGPException.UnsupportedOption;
/**
* Adds one or more verification cert.
*
* @param cert input stream containing the cert(s)
* @return builder instance
*/
Decrypt verifyWithCert(InputStream cert)
throws SOPGPException.BadData,
IOException;
/**
* Adds one or more verification cert.
*
* @param cert byte array containing the cert(s)
* @return builder instance
*/
default Decrypt verifyWithCert(byte[] cert)
throws SOPGPException.BadData, IOException {
return verifyWithCert(new ByteArrayInputStream(cert));
}
/**
* Tries to decrypt with the given session key.
*
* @param sessionKey session key
* @return builder instance
*/
Decrypt withSessionKey(SessionKey sessionKey)
throws SOPGPException.UnsupportedOption;
/**
* Tries to decrypt with the given password.
*
* @param password password
* @return builder instance
*/
Decrypt withPassword(String password)
throws SOPGPException.PasswordNotHumanReadable,
SOPGPException.UnsupportedOption;
/**
* Adds one or more decryption key.
*
* @param key input stream containing the key(s)
* @return builder instance
*/
Decrypt withKey(InputStream key)
throws SOPGPException.KeyIsProtected,
SOPGPException.BadData,
SOPGPException.UnsupportedAsymmetricAlgo;
/**
* Adds one or more decryption key.
*
* @param key byte array containing the key(s)
* @return builder instance
*/
default Decrypt withKey(byte[] key)
throws SOPGPException.KeyIsProtected,
SOPGPException.BadData,
SOPGPException.UnsupportedAsymmetricAlgo {
return withKey(new ByteArrayInputStream(key));
}
/**
* Decrypts the given ciphertext, returning verification results and plaintext.
* @param ciphertext ciphertext
* @return ready with result
*/
ReadyWithResult<DecryptionResult> ciphertext(InputStream ciphertext)
throws SOPGPException.BadData, SOPGPException.MissingArg, SOPGPException.CannotDecrypt;
/**
* Decrypts the given ciphertext, returning verification results and plaintext.
* @param ciphertext ciphertext
* @return ready with result
*/
default ReadyWithResult<DecryptionResult> ciphertext(byte[] ciphertext)
throws SOPGPException.BadData, SOPGPException.MissingArg, SOPGPException.CannotDecrypt {
return ciphertext(new ByteArrayInputStream(ciphertext));
}
}