import hashlib def CalcFileSha256(filname): ''' calculate file sha256 ''' bufsize =1024 *1024 *16 with open(filname,"rb")as f: sha256obj = hashlib.sha256() while True: data = f.read(bufsize) if data ==None or len(data) ==0: break sha256obj.update(data) hash_value = sha2...
9 operators = re.findall("[*/]", formula) 10 calc_list = re.split("[*/]", formula) 11 res = None # 细节赋值,第一遍for循环轮空 12 for index, i in enumerate(calc_list): 13 if res: # 第一次这里不执行,所以列表索引不会超出范围 14 if operators[index-1] == "*": 15 res *...
sha256obj = hashlib.sha256()sha256obj.update(f.read())hash_value = sha256obj.hexdigest()return hash_value def CalcFileSize(filename):''' calculate file size '''return os.stat(filename).st_size def GetFileContent():''' get file contnet '''files_list = GetFilesList()result = list...
()returnresultdefCalcFileSha256(filname):''' calculate file sha256 '''withopen(filname,"rb")asf: sha256obj = hashlib.sha256() sha256obj.update(f.read()) hash_value = sha256obj.hexdigest()returnhash_valuedefCalcFileSize(filename):''' calculate file size '''returnos.stat(filename)...
def calc_hmac(algo_name, key, data): if algo_name == "SHA256": algorithm = hashlib.sha256 elif algo_name == "SM3": # 注意:Python标准库不支持SM3,这里需要替换为实际支持SM3的哈希函数 # 例如,你可以使用第三方库或者自己实现SM3算法 ...
ret, calc_sha256 = sha256_calc(path, False) if ret != OK or calc_sha256 != file_sha256: return ERR return OK def download_xml(lic_list_file_path, lic_list_file_sha256, startup_info): """Download the XML file to be parsed for license-based batch deployment.""" local_path_...
def CalcSha1(filepath): with open(filepath,'rb') as f: sha1obj = hashlib.sha1() sha1obj.update(f.read()) hash = sha1obj.hexdigest() print(hash) return hash def CalcMD5(filepath): with open(filepath,'rb') as f: md5obj = hashlib.md5() ...
def calc_hash(self, data): hash_str = data.encode('utf-8') sha = hashlib.sha256() sha.update(hash_str) return sha.hexdigest() class BlockChain: def __init__(self): self.head = None self.size = 0 def append(self, value): ...
ret, calc_sha256 = sha256_calc(path, False) if ret != OK or calc_sha256 != file_sha256: return ERR return OK def download_xml(lic_list_file_path, lic_list_file_sha256, startup_info): """Download the XML file to be parsed for license-based batch deployment.""" local_path_...
sha1.update('python hashlib?') print sha1.hexdigest() SHA1的结果是160 bit字节,通常用一个40位的16进制字符串表示。 比SHA1更安全的算法是SHA256和SHA512,不过越安全的算法越慢,而且摘要长度更长。 有没有可能两个不同的数据通过某个摘要算法得到了相同的摘要?完全有可能,因为任何摘要算法都是把无限多...