直接上程式碼：

import time
import bcrypt
from passlib.apps import custom_app_context as pwd_context
from werkzeug.security import generate_password_hash, check_password_hash
from flask_bcrypt import Bcrypt


# ---------------------加密密碼與驗證——方式一
def generate_password(password):
    password_hash = pwd_context.encrypt(password)
    return password_hash


def verify_password(password, password_hash):
    return pwd_context.verify(password, password_hash)


# ---------------------加密密碼與驗證——方式二
def encry_pwd(passwd):
    salt = bcrypt.gensalt(rounds=12)  #
    # print('salt:', salt)
    # salt = b'$2b$10$bfjZmqtf2WIu2Lv3JdP4V.'
    # print(salt)
    hashed = bcrypt.hashpw(passwd.encode(), salt)
    return hashed


def check_pwd(passwd, hashed):
    # 校驗過程
    ret = bcrypt.checkpw(passwd.encode(), hashed)
    return ret


# ---------------------加密密碼與驗證——方式三
def get_password(pwd):
    password = generate_password_hash(pwd)
    # print(password)
    return password


def check_password(hash_pwd, pwd):
    return check_password_hash(hash_pwd, pwd)


# ---------------------加密密碼與驗證——方式四

def bcrypt_gene_pwd(pwd):
    bcrypt = Bcrypt()
    pw_hash = bcrypt.generate_password_hash(pwd).decode('utf-8')
    return pw_hash


def bcrypt_check_pwd(pw_hash, pwd):
    bcrypt = Bcrypt()
    ret = bcrypt.check_password_hash(pw_hash, pwd)
    return ret


if __name__ == '__main__':
    # 測試————方式一
    res = generate_password('123456')
    print(res)  # $6$rounds=656000$1ztut7P6gZtP9Bwq$C5vTNQ.pFuRnHohQXfKe/K1VXL1rByS.4C0ZMVA6qC8/6ribEc.4fMuAFUeO.mvxHMWAgQ445NJtd0JTvkks2/
    start = time.time()
    print(verify_password('123456', res))  # True
    end = time.time()
    print(int(round((end - start) * 1000)))  # 679

    # 測試————方式二
    pwd = '123456'
    encryed_pwd = encry_pwd(pwd)
    print(encryed_pwd)  # b'$2b$12$.9M7dawGBjmNSoZZPc29Je3BTwGtNrBD18ppY115mKVqaMnrYNSp6'
    start = time.time()
    flag = check_pwd(pwd, encryed_pwd)
    end = time.time()
    print(int(round((end - start) * 1000)))  # 207
    print(flag)  # True

    # 測試————方式三
    pwd = '123456'
    hash_pwd = get_password(pwd)
    print(hash_pwd)  # pbkdf2:sha256:50000$ZiYb26XV$fc551fc9b4221e36fa9e4711079e098f3f5406890cc03b462485e9a18b9051b8
    start = time.time()
    flag = check_password(hash_pwd, pwd)
    end = time.time()
    print(int(round((end - start) * 1000)))  # 54
    # print(time.time() - start)
    print(flag)  # True

    # 測試————方式四
    pw_hash = bcrypt_gene_pwd('123456')
    print(pw_hash)  # $2b$12$e2cI1lhEAHlyjB6ozHpGb.9cUmL5PptcQwUKVjL5tSkHGfScWcURe
    start = time.time()
    ret = bcrypt_check_pwd(pw_hash, '123456')
    end = time.time()
    print(int(round((end - start) * 1000)))  # 202
    print(ret)  # True
 

從上述測試結果中，可以看出，加密與解密都可以。

一個明顯的區別就是，加密或解密的速度存在不一致。

解密速度最快的是方式三，最慢的是方式一。

以上。