Package net.finmath.decryptionoracle.decryption.arguments

Class EncryptedHashedArguments

java.lang.Object

net.finmath.decryptionoracle.decryption.arguments.EncryptedHashedArguments

public class EncryptedHashedArguments
extends Object

Java representation of the Solidity struct EncryptedHashedArguments: struct EncryptedHashedArguments { bytes32 argsHash; bytes32 publicKeyId; bytes ciphertext; } This class does not perform encryption itself; you pass in the ciphertext. It does provide a helper for computing argsHash from ABI-encoded plaintext arguments.

Author:

Christian Fries

Constructor Summary

Constructors

Constructor	Description
EncryptedHashedArguments(byte[] argsHash, byte[] publicKeyId, byte[] ciphertext)	Constructor for EncryptedHashedArguments.

Method Summary

Modifier and Type	Method	Description
static byte[]	computeArgsHash(byte[] abiEncodedArguments)	Compute argsHash = keccak256(abiEncodedArguments).
boolean	equals(Object o)
byte[]	getArgsHash()	Getter for the field argsHash.
byte[]	getCiphertext()	Getter for the field ciphertext.
byte[]	getPublicKeyId()	Getter for the field publicKeyId.
int	hashCode()
static EncryptedHashedArguments	of(byte[] abiEncodedArguments, byte[] publicKeyId, byte[] ciphertext)	Convenience factory: compute argsHash from plaintext ABI-encoded arguments.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

EncryptedHashedArguments

public EncryptedHashedArguments(byte[] argsHash,
 byte[] publicKeyId,
 byte[] ciphertext)

Constructor for EncryptedHashedArguments.

Parameters:

argsHash - an array of bytes objects

publicKeyId - an array of bytes objects

ciphertext - an array of bytes objects

Method Details

computeArgsHash

public static byte[] computeArgsHash(byte[] abiEncodedArguments)

Compute argsHash = keccak256(abiEncodedArguments). In most cases abiEncodedArguments will be produced with web3j ABI encoding or your own encoder.

Parameters:

abiEncodedArguments - an array of bytes objects

Returns:

an array of bytes objects

of

public static EncryptedHashedArguments of(byte[] abiEncodedArguments,
 byte[] publicKeyId,
 byte[] ciphertext)

Convenience factory: compute argsHash from plaintext ABI-encoded arguments.

Parameters:

abiEncodedArguments - ABI-encoded tuple of argumentsWithoutHash

publicKeyId - identifier of the public key (32 bytes)

ciphertext - encrypted abiEncodedArguments

Returns:

a EncryptedHashedArguments object

getArgsHash

public byte[] getArgsHash()

Getter for the field argsHash.

Returns:

an array of bytes objects

getPublicKeyId

public byte[] getPublicKeyId()

Getter for the field publicKeyId.

Returns:

an array of bytes objects

getCiphertext

public byte[] getCiphertext()

Getter for the field ciphertext.

Returns:

an array of bytes objects

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object