python 计算文件的md5、sha1、sha256、sha512-马育民老师

相关文章：[散列加密：MD5、SHA-1、SHA-2、SHA-3、SHA256、SHA512](https://www.malaoshi.top/show_1IX7RopU2L36.html "散列加密：MD5、SHA-1、SHA-2、SHA-3、SHA256、SHA512")

# 适合读取小文件

以二进制的方式一次读取文件（只适合读取小文件），然后计算相应 md5、sha1、sha256、sha512 值

### md5

```
import hashlib

def md5(path):
    # hashlib.sha512()  or hashlib.md5()
    algorithm = hashlib.md5()
    with open(path, 'rb') as f:
        algorithm.update(f.read())
    
    return algorithm.hexdigest()

path = 'md5.py'
print(md5(path))
```

### sha1

```
import hashlib

def sha1(path):
    # hashlib.sha512()  or hashlib.md5()
    algorithm = hashlib.sha1()  
    with open(path, 'rb') as f:
        algorithm.update(f.read())
    
    return algorithm.hexdigest()

path = 'sha1.py'
print(sha1(path))
```

### sha256

```
import hashlib

def sha256(path):
    # hashlib.sha512()  or hashlib.md5()
    algorithm = hashlib.sha256()  
    with open(path, 'rb') as f:
        algorithm.update(f.read())
    
    return algorithm.hexdigest()

path = 'sha256.py'
print(sha256(path))
```

### sha512

```
import hashlib

def sha512(path):
    # hashlib.sha512()  or hashlib.md5()
    algorithm = hashlib.sha512()  
    with open(path, 'rb') as f:
        algorithm.update(f.read())
    
    return algorithm.hexdigest()

path = 'sha512.py'
print(sha512(path))

```

参考：https://blog.csdn.net/TomorrowAndTuture/article/details/121356204

原文出处：http://malaoshi.top/show_1IX7RtT3rdv2.html