@sec-block/secjs-rlp

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SECRlpEncode

This package is used for SEC blockchain rlp encoding.

• SECRlpEncode
  • new SECRlpEncode(config)
  • .encode(input, buffer, offset) ⇒ Buffer
  • .decode(input, start, end) ⇒ Array
  • .getLength(input) ⇒ Number

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new SECRlpEncode(config)

new SECRlpEncode(config) Constructs a rlp encode class.

Param	Type	Description
config	TBD	TBD, will be implemented in the future

Example

const RLP = require('encode.js')

const rlp = new RLP()

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SECRlpEncode.encode(input, buffer, offset) ⇒ Buffer

Returns input in RLP encoded format

Param	Type	Description
input	{Buffer, String, Integer, Array}	Input data for RLP encode
buffer	{Buffer}	Input buffer which is in RLP encoded format
offset	{Buffer}	Buffer offset position

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SECRlpEncode.decode(input, start, end) ⇒ Array

RLP decode for input data

Param	Type	Description
input	{Buffer, String, Integer, Array}	Input should be in RLP encoded structure
start	{Integer}	"input" data array starting index
end	{Integer}	"input" data array ending index

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SECRlpEncode.getLength(input) ⇒ Number

Returns input's length according to the first several indication bytes

Param	Type	Description
input	{Buffer, String, Integer, Array}	Input should be in RLP encoded data, or the returned length is wrong

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中文简介：

本库函数用于SEC区块链的RLP编码 RLP编码用于存储和传输数据，处理数据则用.json格式文件 json文件由RLP编码过以后，由于json文件的键值被去掉了，仅保留内容，因此剩下了大量的空间

主要的函数:

1. RLP编码: encode(input, buffer, offset) => Buffer 输入"input"可以是{Buffer,String,Integer,Array}，RLP编码仅对两种数据结构进行处理：列表及字符串 Nodejs中Array即为列表，其他类型{Buffer,String,Integer}作为字符串处理 该函数的输出结果为RLP编码后的input，类型为Buffer

2. RLP解码：decode(input, start, end) => Array 输入"input"可以是{Buffer,String,Integer,Array}，无论哪种类型，都会被先转换为Buffer类型再进行处理 作用与encode相反，将RLP格式的数据进行解码, 输出为Array类型

3. 获取长度函数: getLength(input) => Number input为经过RLP编码后的数据 函数根据前几个字节的值获取整个input数据的长度