Password(密码)：简单理解就是数字和字符等组合，长度中等,如hello123
Passphrase(密码短语)：任意字符，一般是有意义的短语，长度较长，不易破解等，比如Cfbdymg-Xcygwgr(春风不度玉门关，西出阳关无故人)
Passcode(密码代码)：纯数字，长度一般较短, 一般用于设备简单的验证，如123,123456
see also:https://www.okta.com/identity-101/password-vs-passphrase/
Passwords usually contain a combination of special characters, letters, and numbers with variable lengths. Most are around 10 characters.
A passphrase is basically a longer password, usually at least 14 characters in length, with spaces between words. Both passwords and passphrases can be used to encrypt data and maintain secure access to websites, software, and hardware systems.
Password:
Definition: A password is a string of characters (letters, numbers, and symbols) used to authenticate a user’s identity and protect access to an account or device. Typical passwords are usually between 6 and 16 characters in length.
Characteristics: Short and often easy to remember, but if not complex enough, it can be easily guessed or cracked.
Example: 123456, password123.
Passphrase:
Definition: A passphrase is a longer string, typically made up of multiple words, used to secure an account or encryption key. Passphrases are often 4 or more words and can include spaces and punctuation marks.
Characteristics: Because passphrases are longer and more complex, they tend to offer stronger security. They are also easier to remember if they consist of meaningful words or phrases.
Example: "flew cat, bo0k through there!" "My dog name is chocolate"
Passcode:
Definition: A passcode is typically a numeric code used to authenticate a user. It is commonly used to unlock devices like smartphones or tablets and is generally shorter than a password or passphrase.
Characteristics: Usually a shorter numeric string, used for device unlocking or quick authentication.
Example: 1234, 5678.
Summary:
Password: Shorter, typically a mix of letters, numbers, and symbols, used for online accounts.
Passphrase: Longer, usually a string of multiple words, providing higher security, often used for encryption or private key storage.
Passcode: A numeric code, usually shorter, used for device access or quick authentication.
