Module com.hedera.hashgraph.sdk

Package com.hedera.hashgraph.sdk

Class EthereumEncoding

java.lang.Object

com.hedera.hashgraph.sdk.EthereumEncoding

final class EthereumEncoding
extends Object

Helpers for Ethereum RLP canonical integer encoding: big-endian, no leading zeros, zero is the empty byte string.

Method Summary

Modifier and Type	Method	Description
(package private) static byte[]	bigIntToEthBytes(BigInteger v)	Encode v as canonical minimal big-endian bytes.
(package private) static BigInteger	ethBytesToBigInt(byte[] b)	Decode canonical bytes to a BigInteger.
(package private) static long	ethBytesToLong(byte[] b)	Decode canonical bytes to a long.
(package private) static byte[]	uint64ToEthBytes(long v)	Encode v as canonical minimal big-endian bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

uint64ToEthBytes

static byte[] uint64ToEthBytes(long v)

Encode v as canonical minimal big-endian bytes. Zero is encoded as an empty byte array.

Parameters:

v - the unsigned value to encode

Returns:

the canonical big-endian byte representation

ethBytesToLong

static long ethBytesToLong(byte[] b)

Decode canonical bytes to a long. An empty array decodes to 0. Input longer than 8 bytes is truncated to the low 8 bytes.

Parameters:

b - the canonical big-endian bytes

Returns:

the decoded value

bigIntToEthBytes

static byte[] bigIntToEthBytes(BigInteger v)

Encode v as canonical minimal big-endian bytes. Null and zero are encoded as an empty byte array. Negative values encode their absolute value.

Parameters:

v - the value to encode

Returns:

the canonical big-endian byte representation

ethBytesToBigInt

static BigInteger ethBytesToBigInt(byte[] b)

Decode canonical bytes to a BigInteger. An empty array decodes to 0.

Parameters:

b - the canonical big-endian bytes

Returns:

the decoded value