def replace_mask(): for i in range(len(data)): data[i]["手机号"] = encrypt(data[i]["手机号"]) data[i]["身份证号"] = encrypt(data[i]["身份证号"]) show_data() def tihuan(): # 替换手机号和身份证号码的函数 def replace_sensitive_info(match): sensitive_info = match.group(0) if re.match(r'^1\d{10}$', sensitive_info): # 匹配手机号 return sensitive_info[0:3] + 'aaaa' + sensitive_info[7:] elif re.match(r'^\d{17}[\dXx]$', sensitive_info): # 匹配身份证号 return sensitive_info[0:8] + 'aaaaaaaa' + sensitive_info[16:] else: return sensitive_info # 数据脱敏函数 def desensitize_data(phone_input, id_input): data = phone_input + ' ' + id_input pattern = re.compile(r'1\d{10}|\d{17}[\dXx]') # 替换所有匹配的敏感信息 desensitized_data = re.sub(pattern, replace_sensitive_info, data) return desensitized_data # 测试数据脱敏函数 data = desensitize_data(phone_input, id_input)怎么改代码能将这两段代码合在一起

def next_letter(letter): if letter == 'Z' or letter == 'z': return 'a' return chr(ord(letter) + 1).lower() def previous_letter(letter): if letter == 'A' or letter == 'a': return 'z' return chr(ord(letter) - 1).lower() # 加密 def encrypt(): encrypt_letter = '' for i in need_encrypt: if i.isalpha(): ii = next_letter(i) if i.upper() == i: encrypt_letter += ii else: encrypt_letter += ii.upper() elif i.isdigit(): if i == '9': encrypt_letter += '0' else: encrypt_letter += str(int(i)+1) else: encrypt_letter += i print(encrypt_letter) # 解密 def decode(): decode_letter = '' for i in need_decode: if i.isalpha(): ii = previous_letter(i) if i.upper() == i: decode_letter += ii else: decode_letter += ii.upper() elif i.isdigit(): if i == '0': decode_letter += '9' else: decode_letter += str(int(i)-1) else: decode_letter += i print(decode_letter) while 1: try: need_encrypt = input() need_decode = input() encrypt() decode() except: break

然后有两个主要的功能函数：encrypt和decode，用于加密和解密给定的字符串。在加密过程中，程序会遍历输入字符串中的每个字符。如果字符是字母，则使用next_letter函数获取它的下一个字母，并根据原字符的大...

grant execute on dbms_crypto to system; declare input_string VARCHAR2 (200) := 'Secret Message'; output_string VARCHAR2(2000); encrypted_raw RAW(2000); decrypted_raw RAW(2000); num_key_bytes NUMBER := 256/8; key_bytes_raw RAW(32); encryption_type PLS_INTEGER := DBMS_CRYPTO.ENCRYPT_AES256 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; begin DBMS_OUTPUT.PUT_LINE(input_string); key_bytes_raw := DBMS_CRYPTO.RANDOMBYTES(num_key_bytes); encrypted_raw := DBMS_CRYPTO.ENCRYPT ( src => UTL_I18N.STRING_TO_RAW(input_string, 'AL32UTF8'), typ => encryption_type, key => key_bytes_raw ); decrypted_raw := DBMS_CRYPTO.DECRYPT ( src => encrypted_raw, typ => encryption_type, key => key_bytes_raw ); output_string := UTL_I18N.RAW_TO_CHAR(decrypted_raw, 'AL32UTF8'); DBMS_OUTPUT.PUT_LINE(output_string); end; declare l_src_data varchar2(20); l_type pls_integer :=DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) :='0123456789123456'; l_encval raw(2000); CURSOR secret_cursor IS select phonenumber from customer; begin OPEN secret_cursor; LOOP FETCH secret_cursor INTO l_src_data; l_encval :=dbms_crypto.encrypt( src=>utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ=>l_type, key=>utl_i18n.string_to_raw(l_key,'AL32UTF8')); DBMS_OUTPUT.PUT_LINE (l_encval); EXIT WHEN secret_cursor%NOTFOUND; END LOOP; CLOSE secret_cursor; end; declare ;_src_data row(100) :=hextoraw("190248129038903853275ijdkvjkad'); l_type pls_integer :=dbms_crypto.encrypt_aes128+ + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) :='0123456789123456'; l_decval raw(200); begin l_decval :=dbms_crypto.decrypt( src=>l_src_data, typ=>l_type, key=>utl_i18n.string_to_raw(l_key,'AL32UTF8')); end; SELECT Price FROM PRODUCT WHERE ProductID = 5;修正这一段代码

l_encval := dbms_crypto.encrypt(src => utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); dbms_output.put_line(l_encval); end loop; ...

def encrypt_char(char): """ 字符加密函数，将字符ASCII值加4 """ return chr(ord(char) + 4) def main(): char = input("请输入要加密的字符：") encrypted_char = encrypt_char(char) print("加密后的字符为：", encrypted_char) if name == 'main': main()检查并优化程序

def encrypt_char(char): """ 字符加密函数，将字符ASCII值加4 """ if len(char) != 1: print("请输入单个字符！") return char encrypted_char = chr((ord(char) + 4) % 256) return encrypted_char def ...

grant execute on dbms_crypto to system; -- 第一个代码块 declare input_string VARCHAR2 (200) := 'Secret Message'; output_string VARCHAR2(2000); encrypted_raw RAW(2000); decrypted_raw RAW(2000); num_key_bytes NUMBER := 256/8; key_bytes_raw RAW(32); encryption_type PLS_INTEGER := DBMS_CRYPTO.ENCRYPT_AES256 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; begin DBMS_OUTPUT.PUT_LINE(input_string); key_bytes_raw := DBMS_CRYPTO.RANDOMBYTES(num_key_bytes); encrypted_raw := DBMS_CRYPTO.ENCRYPT(src => UTL_I18N.STRING_TO_RAW(input_string, 'AL32UTF8'), typ => encryption_type, key => key_bytes_raw); decrypted_raw := DBMS_CRYPTO.DECRYPT(src => encrypted_raw, typ => encryption_type, key => key_bytes_raw); output_string := UTL_I18N.RAW_TO_CHAR(decrypted_raw, 'AL32UTF8'); DBMS_OUTPUT.PUT_LINE(output_string); end; -- 第二个代码块 declare l_src_data varchar2(20); l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) := '0123456789123456'; l_encval raw(2000); cursor secret_cursor is select phonenumber from customer; begin open secret_cursor; loop fetch secret_cursor into l_src_data; exit when secret_cursor%notfound; l_encval := dbms_crypto.encrypt(src => utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); dbms_output.put_line(l_encval); end loop; close secret_cursor; end; -- 第三个代码块 declare l_src_data raw(100) := hextoraw('190248129038903853275ijdkvjkad'); l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) := '0123456789123456'; l_decval raw(200); begin l_decval := dbms_crypto.decrypt(src => l_src_data, typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); end; -- SQL 查询语句 SELECT Price FROM PRODUCT WHERE ProductID = 5;declare * ERROR at line 18: ORA-06550: line 18, column 1: PLS-00103: Encountered the symbol "DECLARE"报错

l_encval := dbms_crypto.encrypt(src => utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); dbms_output.put_line(l_encval); end loop; ...

为这段代码注释from PIL import Image import hashlib import requests import json import certifi import os image_url = "xxxxxxxx" response = requests.get(image_url) if response.status_code == 200: image_path = 'original_image.jpg' with open(image_path, 'wb') as f: f.write(response.content) owner_info = "XXXXXXX" else: raise Exception("Unable to download image") blockchain_api_url = "XXXXXXXXXXXXXXXXXXX" payload = {"text": owner_info} response = requests.post(blockchain_api_url, data=json.dumps(payload)) if response.status_code == 200: encrypted_data = response.json()["data"] else: raise Exception("Unable to encrypt data using blockchain API") response = requests.get(blockchain_api_url + f"/{encrypted_data}") if response.status_code == 200: decrypted_data = response.json()["text"] else: raise Exception("Unable to decrypt data using blockchain API") def encrypt_image(image_path, key): img = Image.open(image_path).convert('RGB') pixels = img.load() width, height = img.size key = hashlib.sha256(key.encode()).digest() key_parts = [key[i:i+3] for i in range(0, len(key), 3)] for x in range(width): for y in range(height): r, g, b = pixels[x, y] r = r ^ key_parts[x % len(key_parts)][0] g = g ^ key_parts[y % len(key_parts)][1] b = b ^ key_parts[(x+y) % len(key_parts)][2] pixels[x, y] = (r, g, b) img.save(image_path.replace('.jpg', '_encrypted.jpg')) os.environ['REQUESTS_CA_BUNDLE'] = certifi.where() encrypt_image(image_path, decrypted_data)

key_parts = [key[i:i+3] for i in range(0, len(key), 3)] # 遍历每个像素点，并执行异或运算 for x in range(width): for y in range(height): r, g, b = pixels[x, y] # 获取像素点的RGB值 r = r ^ key_...

#加密 def encrypt_fence(string, key): ciphertext = "" temp = []#创建列表储存字符串 for i in range(key):#按分栏数遍历 temp.append("")#添加空格到字表中 for index, i in enumerate(string): temp[index % key] += i ciphertext = "".join(temp)#使生成字母加入到新的字符串中 return ciphertext #解密 def decrypt_fence(string, key): plaintext = "" length = len(string) min_row = length // key max_num = length % key temp = [] index = 0 for i in range(key): if i < max_num: temp.append(string[index:index+min_row+1]) index += min_row + 1 else: temp.append(string[index:index+min_row]) index += min_row for i in range(length): plaintext += temp[i % key][i // key] return plaintext #主函数 if name == 'main': key_ = 3#自定义分栏数 ciphertext_ = encrypt_fence("welcome to python", key_)#调用加密函数 plaintext_ = decrypt_fence(ciphertext_, key_)#调用解密函数 a = ciphertext_.split()#字符串按空格分割成列表 ciphertext = "".join(a)#使用一个字符串合成列表内容生成新的字符串 print("密文为：{}".format(ciphertext)) print("解密得明文为:{}".format(plaintext_))

这段代码实现了栅栏密码的加密和解密功能，其中加密函数 encrypt_fence 将明文按照分栏数进行分组，然后按照列顺序依次取出每个字符，生成密文。解密函数 decrypt_fence 则是按照相反的顺序，将密文按照分栏数...

SQL> declare 2 l_src_data varchar2(20); 3 l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 4 + DBMS_CRYPTO.CHAIN_CBC 5 + DBMS_CRYPTO.PAD_PKCS5; 6 l_key varchar2(20) := '0123456789123456'; 7 l_encval raw(200); 8 9 CURSOR secret_cursor IS 10 select phonenumber from customer; 11 begin 12 OPEN secret_cursor; 13 LOOP 14 FETCH secret_cursor INTO l_src_data; 15 EXIT WHEN secret_cursor%NOTFOUND; 16 17 l_encval := dbms_crypto.encrypt( 18 src => utl_i18n.string_to_raw(l_src_data, 'AL32UTF8'), 19 typ => l_type, 20 key => utl_i18n.string_to_raw(l_key, 'AL32UTF8') 21 ); 22 23 DBMS_OUTPUT.PUT_LINE(l_encval); 24 END LOOP; 25 26 CLOSE secret_cursor; 27 end; 28 29 declare 30 _src_data raw(100) := hextoraw('190248129038903853275ijdkvjkad'); 31 l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 32 + DBMS_CRYPTO.CHAIN_CBC 33 + DBMS_CRYPTO.PAD_PKCS5; 34 l_key varchar2(20) := '0123456789123456'; 35 l_decval raw(200); 36 begin 37 l_decval := dbms_crypto.decrypt( 38 src => _src_data, 39 typ => l_type, 40 key => utl_i18n.string_to_raw(l_key, 'AL32UTF8') 41 ); 42 end; 43 / declare * 第 29 行出现错误: ORA-06550: 第 29 行, 第 1 列: PLS-00103: 出现符号 "DECLARE"

_src_data raw(100) := hextoraw('190248129038903853275ijdkvjkad'); l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) := '...

将下面代码修改成正确格式import random import math def is_prime(number): if number < 2: return False for i in range(2, int(number 0.5) + 1): if number % i == 0: return False return Truedef generate_key(length): while True: p = random.randint(2 (length//2 - 1), 2 (length//2)) if is_prime(p): break while True: q = random.randint(2 (length//2 - 1), 2 ** (length//2)) if is_prime(q) and q != p: break n = p * q phi_n = (p - 1) * (q - 1) while True: e = random.randint(2, phi_n - 1) if math.gcd(e, phi_n) == 1: break d = pow(e, -1, phi_n) public_key = (n, e) private_key = (n, d) return public_key, private_keydef encrypt(message, public_key): n, e = public_key m = int.from_bytes(message.encode(), 'big') c = pow(m, e, n) return c.to_bytes((c.bit_length() + 7) // 8, 'big') def decrypt(ciphertext, private_key): n, d = private_key c = int.from_bytes(ciphertext, 'big') m = pow(c, d, n) return m.to_bytes((m.bit_length() + 7) // 8, 'big') def main(): message = "Hello, this is a test message!" print("Original message:", message) public_key, private_key = generate_key(512) print("Public key:", public_key) print("Private key:", private_key) encrypted_message = encrypt(message, public_key) print("Encrypted message:", encrypted_message) decrypted_message = decrypt(encrypted_message, private_key) print("Decrypted message:", decrypted_message.decode()) if name == "main": main()

for i in range(2, int(number ** 0.5) + 1): if number % i == 0: return False return True def generate_key(length): while True: p = random.randint(2 ** (length//2 - 1), 2 ** (length//2)) ...

class Client(object): def init(self, conf, public_key, weights, data_x, data_y): self.conf = conf self.public_key = public_key self.local_model = models.LR_Model(public_key=self.public_key, w=weights, encrypted=True) #print(type(self.local_model.encrypt_weights)) self.data_x = data_x self.data_y = data_y #print(self.data_x.shape, self.data_y.shape) def local_train(self, weights): original_w = weights self.local_model.set_encrypt_weights(weights) neg_one = self.public_key.encrypt(-1) for e in range(self.conf["local_epochs"]): print("start epoch ", e) #if e > 0 and e%2 == 0: # print("re encrypt") # self.local_model.encrypt_weights = Server.re_encrypt(self.local_model.encrypt_weights) idx = np.arange(self.data_x.shape[0]) batch_idx = np.random.choice(idx, self.conf['batch_size'], replace=False) #print(batch_idx) x = self.data_x[batch_idx] x = np.concatenate((x, np.ones((x.shape[0], 1))), axis=1) y = self.data_y[batch_idx].reshape((-1, 1)) #print((0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one).shape) #print(x.transpose().shape) #assert(False) batch_encrypted_grad = x.transpose() * (0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one) encrypted_grad = batch_encrypted_grad.sum(axis=1) / y.shape[0] for j in range(len(self.local_model.encrypt_weights)): self.local_model.encrypt_weights[j] -= self.conf["lr"] * encrypted_grad[j] weight_accumulators = [] #print(models.decrypt_vector(Server.private_key, weights)) for j in range(len(self.local_model.encrypt_weights)): weight_accumulators.append(self.local_model.encrypt_weights[j] - original_w[j]) return weight_accumulators

这段代码看起来是一个客户端的类实现，其中包含了初始化函数和本地训练函数。初始化函数接受一些参数，包括全局配置conf、公钥public_key、权重weights、数据x和数据y。在初始化函数中，使用公钥public_key和权重...

将下面代码修改成正确格式并加上注释 import random import math def is_prime(number): if number < 2: return False for i in range(2, int(number 0.5) + 1): if number % i == 0: return False return Truedef generate_key(length): while True: p = random.randint(2 (length//2 - 1), 2 (length//2)) if is_prime(p): break while True: q = random.randint(2 (length//2 - 1), 2 ** (length//2)) if is_prime(q) and q != p: break n = p * q phi_n = (p - 1) * (q - 1) while True: e = random.randint(2, phi_n - 1) if math.gcd(e, phi_n) == 1: break d = pow(e, -1, phi_n) public_key = (n, e) private_key = (n, d) return public_key, private_keydef encrypt(message, public_key): n, e = public_key m = int.from_bytes(message.encode(), 'big') c = pow(m, e, n) return c.to_bytes((c.bit_length() + 7) // 8, 'big') def decrypt(ciphertext, private_key): n, d = private_key c = int.from_bytes(ciphertext, 'big') m = pow(c, d, n) return m.to_bytes((m.bit_length() + 7) // 8, 'big') def main(): message = "Hello, this is a test message!" print("Original message:", message) public_key, private_key = generate_key(512) print("Public key:", public_key) print("Private key:", private_key) encrypted_message = encrypt(message, public_key) print("Encrypted message:", encrypted_message) decrypted_message = decrypt(encrypted_message, private_key) print("Decrypted message:", decrypted_message.decode()) if name == "main": main()

for i in range(2, int(number ** 0.5) + 1): if number % i == 0: return False return True def generate_key(length): """ 生成公私密钥对 """ while True: p = random.randint(2 ** (length//2 - 1), ...

def xor_encrypt(file_path, key): # 打开文件以二进制形式读取数据 with open(file_path, 'rb') as file: # 读取文件数据 data = file.read() # 将每个字节与密钥进行异或加密 encrypted_data = bytearray() for byte in data: encrypted_byte = byte ^ key encrypted_data.append(encrypted_byte) # 返回加密后的数据 return encrypted_data优化

encrypted_data = [byte ^ key for byte in data] # 返回加密后的数据 return bytes(encrypted_data) 这样代码更简洁易懂了。同时，由于使用了列表推导式，函数返回的是一个bytes类型，而不是bytearray...

from tkinter import * from Crypto.Cipher import DES root = Tk() root.title("DES加密") root.geometry("400x300") # 定义S盒 S_BOX = [ [0x01, 0x03, 0x05, 0x0F, 0x11, 0x33, 0x55, 0xFF], [0x1A, 0x2E, 0x72, 0x96, 0xA1, 0xF8, 0x13, 0x35], [0x5F, 0xE1, 0x38, 0x48, 0xD8, 0x73, 0x95, 0xA4], [0xF7, 0x02, 0x06, 0x0A, 0x1E, 0x22, 0x66, 0xAA], [0xE5, 0x34, 0x5C, 0xE4, 0x37, 0x59, 0xEB, 0x26], [0x6A, 0xBE, 0xD9, 0x70, 0x90, 0xAB, 0xE6, 0x31], [0x53, 0xF5, 0x04, 0x0C, 0x14, 0x3C, 0x44, 0xCC], [0x4F, 0xD1, 0x68, 0xB8, 0xD3, 0x6E, 0xB2, 0xCD] ] # 获取复选框的值 def get_checkbox(): values = [] for i in range(8): if checkbox_vars[i].get() == 1: values.append(1 << i) return values # 加密函数 def des_encrypt(): key = key_entry.get().encode("utf-8") data = data_entry.get().encode("utf-8") sbox_values = get_checkbox() # 构造S盒 sbox = [] for i in range(8): if (1 << i) in sbox_values: sbox.append(S_BOX[i]) # 填充数据 pad_len = 8 - len(data) % 8 data += bytes([pad_len] * pad_len) # 加密 iv = b'\x00' * 8 cipher = DES.new(key, DES.MODE_CBC, iv) encrypted_data = cipher.encrypt(data) # 输出结果 result = "" for byte in encrypted_data: result += "{:02x} ".format(byte) result_label.config(text=result) # 标签和输入框 key_label = Label(root, text="密钥：") key_label.place(x=20, y=20) key_entry = Entry(root) key_entry.place(x=80, y=20) data_label = Label(root, text="数据：") data_label.place(x=20, y=60) data_entry = Entry(root) data_entry.place(x=80, y=60) sbox_label = Label(root, text="S盒：") sbox_label.place(x=20, y=100) # 复选框 checkbox_vars = [] for i in range(8): checkbox_var = IntVar() checkbox_vars.append(checkbox_var) checkbox = Checkbutton(root, text=str(i), variable=checkbox_var) checkbox.place(x=80+40*i, y=100) # 加密按钮 encrypt_button = Button(root, text="加密", command=des_encrypt) encrypt_button.place(x=180, y=140) # 结果标签 result_label = Label(root, text="") result_label.place(x=20, y=180) root.mainloop()实例输入运行

这这是这是Python这是Python程序这是Python程序，这是Python程序，引这是Python程序，引用这是Python程序，引用了这是Python程序，引用了tk这是Python程序，引用了tkinter这是Python程序，引用了tkinter和这是Python...

import pyffx # 定义FPE使用的密钥和算法 key = b'secretkey' cipher = pyffx.String(b'abcdefghijklmnopqrstuvwxyz012345', length=len(phone_number), key=key) # 脱敏手机号的函数 def encrypt_phone_number(phone_number): # 将手机号中间四位进行加密 encrypted = cipher.encrypt(phone_number[3:7]) # 将加密后的结果插入到原手机号的中间四位 return phone_number[:3] + encrypted + phone_number[7:] # 测试脱敏函数 phone_number = '13812345678' encrypted_phone_number = encrypt_phone_number(phone_number) print('原手机号：', phone_number) print('脱敏后手机号：', encrypted_phone_number)报错init() missing 1 required positional argument: 'alphabet'

你可以将length参数移除，将alphabet参数放到第一个位置，并指定为'0123456789'，因为手机号只包含数字字符。修改后的代码如下： python import pyffx # 定义FPE使用的密钥和算法 key = b'secretkey' ...

def local_train(self, weights): original_w = weights self.local_model.set_encrypt_weights(weights) neg_one = self.public_key.encrypt(-1) for e in range(self.conf["local_epochs"]): print("start epoch ", e) #if e > 0 and e%2 == 0: # print("re encrypt") # self.local_model.encrypt_weights = Server.re_encrypt(self.local_model.encrypt_weights) idx = np.arange(self.data_x.shape[0]) batch_idx = np.random.choice(idx, self.conf['batch_size'], replace=False) #print(batch_idx) x = self.data_x[batch_idx] x = np.concatenate((x, np.ones((x.shape[0], 1))), axis=1) y = self.data_y[batch_idx].reshape((-1, 1)) #print((0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one).shape) #print(x.transpose().shape) #assert(False) batch_encrypted_grad = x.transpose() * (0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one) encrypted_grad = batch_encrypted_grad.sum(axis=1) / y.shape[0] for j in range(len(self.local_model.encrypt_weights)): self.local_model.encrypt_weights[j] -= self.conf["lr"] * encrypted_grad[j] weight_accumulators = [] #print(models.decrypt_vector(Server.private_key, weights)) for j in range(len(self.local_model.encrypt_weights)): weight_accumulators.append(self.local_model.encrypt_weights[j] - original_w[j]) return weight_accumulators

其中，data_x和data_y分别是客户端持有的训练数据的特征和标签。训练完成后，代码返回模型参数的差异值，即本次训练后模型参数与初始参数之间的差异。需要注意的是，该代码使用了加密技术对模型参数进行保护，其中...

def encrypt_bytes(data,key): #加密 e_data = [] for d in data: e = modpow(d, key[0], key[1])#modpow函数,它用来计算公式b^e % n = r #如果是加密过程，那么b 是明文，（n，e）为公钥， r 为密文。 #如果是解密过程，那么b 是密文，（n，d）为私钥， r 为明文。 e_data.append(e)#append用于列表后添加新的对象，在这里是完成e_data的赋值 return e_data decrypt_bytes = encrypt_bytes什么意思

在函数内部，它通过遍历 data 中的每个字节，使用公钥信息对其进行 RSA 加密，并将加密后的密文依次添加到一个列表 e_data 中，并最终返回该列表。 decrypt_bytes() 函数则与 encrypt_bytes() 函数完全相同...

编写一个python程序，定义一个字符加密函数，加密规则是把字符ASCII值加4。主程序实现字符输入，调用函数加密，显示加密后的字符。 def encrypt_char(char): """ 字符加密函数，将字符ASCII值加4 """ return chr(ord(char) + 4) def main(): char = input("请输入要加密的字符：") encrypted_char = encrypt_char(char) print("加密后的字符为：", encrypted_char) if name == 'main': main() 在程序中，定义了一个字符加密函数encrypt_char，用于将输入的字符进行加密。加密规则是将字符的ASCII值加4，使用chr函数将得到的新ASCII码转换为字符，即为加密后的字符。在主程序中，调用input函数获取用户输入的字符，再将该字符作为参数调用字符加密函数encrypt_char，得到加密后的字符。最后，使用print函数输出加密后的字符。

def encrypt_char(char): """ 字符加密函数，将字符ASCII值加4 """ return chr(ord(char) + 4) def main(): char = input("请输入要加密的字符：") encrypted_char = encrypt_char(char) print("加密后的...

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