Skip to main content

prs utility

Project description

prs-utility 是 PRS 为 Python 提供的算法工具库,包含项目中用到的消息摘要、签名算法。

Python 版本支持

支持 >= Python 3.6

安装

pip install prs-utility

使用示例

# 根据 keystore 和 password 得到私钥
import json
import prs_utility

keystore = {
    "address": "758ea2601697fbd3ba6eb6774ed70b6c4cdb0ef9",
    "crypto": {
        "cipher": "aes-128-ctr",
        "ciphertext": "92af6f6710eba271eae5ac7fec72c70d9f49215e7880a0c45d4c53e56bd7ea59",
        "cipherparams": {
            "iv": "13ddf95d970e924c97e4dcd29ba96520"
        },
        "mac": "b9d81d78f067334ee922fb2863e32c14cbc46e479eeb0acc11fb31e39256004e",
        "kdf": "pbkdf2",
        "kdfparams": {
            "c": 262144,
            "dklen": 32,
            "prf": "hmac-sha256",
            "salt": "79f90bb603491573e40a79fe356b88d0c7869852e43c2bbaabed44578a82bbfa"
        }
    },
    "id": "93028e51-a2a4-4514-bc1a-94b089445f35",
    "version": 3
}
password = '123123'
private_key = prs_utility.recover_private_key(
    json.dumps(keystore), password
)
print('private_key:', private_key)

# 计算 hash 值
## 计算 bytes、int、bool 的 hash 值

print(prs_utility.keccak256(primitive=b'hello'))
print(prs_utility.keccak256(primitive=42))
print(prs_utility.keccak256(primitive=True))

 函数的第一个可选参数是 primitive所以可以不写该参数
print(prs_utility.keccak256(42))

## 计算 text 或 字符串 的 hash 值
print(prs_utility.keccak256(text='hello'))

with open(__file__) as fp:
    content = fp.read()
file_hash = prs_utility.keccak256(text=content)
print('file hash:', file_hash)

## 计算 hex str 的 hash 值
print(prs_utility.keccak256(hexstr='0xabcd'))

# 根据 PRS 协议组合 block data, 并且使用 privateKey 进行签名
data = {
    'file_hash': file_hash,
}
key_pair = prs_utility.create_key_pair()
private_key = key_pair['privateKey']
sig = prs_utility.sign_block_data(data, private_key)
print('signature:', sig)

# 生成一对新密钥
key_pair = prs_utility.create_key_pair()
print('key_pair:', key_pair)

API

prs-utility 提供了常用的加解密函数和一些用于格式转化的工具函数

$ pydoc prs_utility

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

prs-utility-0.0.8.tar.gz (11.7 kB view hashes)

Uploaded source

Built Distribution

prs_utility-0.0.8-py2.py3-none-any.whl (6.6 kB view hashes)

Uploaded py2 py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page