BCrypt比较两个哈希不相等

Question

I have this code:

u := models.Users{}

u = u.FindByEmail(login.Email)

password := []byte(login.Password)

hashedPassword, err := bcrypt.GenerateFromPassword(password, bcrypt.DefaultCost) if err != nil { panic(err) }

err = bcrypt.CompareHashAndPassword(hashedPassword, []byte(u.Password)) fmt.Println(err)

I end up getting this error: crypto/bcrypt: hashedPassword is not the hash of the given password

However I previously saved my model to have the same hash as "admin", but when I run my application, it tells me it is not equal.

Answer 1

Re-read the docs carefully.

CompareHashAndPassword compares a bcrypt hashed password with its possible plaintext equivalent. Returns nil on success, or an error on failure.

Basically, it is saying that you should compare the hash you have stored against the plain text password.

you probably want:

u := models.Users{}

u = u.FindByEmail(login.Email)

plainPassword := []byte(login.Password)
// Assumes that u.Password is the actual hash and that you didn't store plain text password.
err = bcrypt.CompareHashAndPassword([]byte(u.Password), plainPassword)

fmt.Println(err)