Class: Defuse\Crypto\Key ========================= The `Key` class represents a secret key used for encrypting and decrypting. Once you have a `Key` instance, you can use it with the `Crypto` class to encrypt and decrypt strings and with the `File` class to encrypt and decrypt files. Instance Methods ----------------- ### saveToAsciiSafeString() **Description:** Saves the encryption key to a string of printable ASCII characters, which can be loaded again into a `Key` instance using `Key::loadFromAsciiSafeString()`. **Parameters:** This method does not take any parameters. **Return value:** Returns a string of printable ASCII characters representing this `Key` instance, which can be loaded back into an instance of `Key` using `Key::loadFromAsciiSafeString()`. **Exceptions:** - `Defuse\Crypto\Exception\EnvironmentIsBrokenException` is thrown either when the platform the code is running on cannot safely perform encryption for some reason (e.g. it lacks a secure random number generator), or the runtime tests detected a bug in this library. **Side-effects and performance:** None. **Cautions:** This method currently returns a hexadecimal string. You should not rely on this behavior. For example, it may be improved in the future to return a base64 string. Static Methods --------------- ### Key::createNewRandomKey() **Description:** Generates a new random key and returns an instance of `Key`. **Parameters:** This method does not take any parameters. **Return value:** Returns an instance of `Key` containing a randomly-generated encryption key. **Exceptions:** - `Defuse\Crypto\Exception\EnvironmentIsBrokenException` is thrown either when the platform the code is running on cannot safely perform encryption for some reason (e.g. it lacks a secure random number generator), or the runtime tests detected a bug in this library. **Side-effects and performance:** None. **Cautions:** None. ### Key::loadFromAsciiSafeString($saved\_key\_string, $do\_not\_trim = false) **Description:** Loads an instance of `Key` that was saved to a string by `saveToAsciiSafeString()`. By default, this function will call `Encoding::trimTrailingWhitespace()` to remove trailing CR, LF, NUL, TAB, and SPACE characters, which are commonly appended to files when working with text editors. **Parameters:** 1. `$saved_key_string` is the string returned from `saveToAsciiSafeString()` when the original `Key` instance was saved. 2. `$do_not_trim` should be set to `TRUE` if you do not wish for the library to automatically strip trailing whitespace from the string. **Return value:** Returns an instance of `Key` representing the same encryption key as the one that was represented by the `Key` instance that got saved into `$saved_key_string` by a call to `saveToAsciiSafeString()`. **Exceptions:** - `Defuse\Crypto\Exception\EnvironmentIsBrokenException` is thrown either when the platform the code is running on cannot safely perform encryption for some reason (e.g. it lacks a secure random number generator), or the runtime tests detected a bug in this library. - `Defuse\Crypto\Exception\BadFormatException` is thrown whenever `$saved_key_string` does not represent a valid `Key` instance. **Side-effects and performance:** None. **Cautions:** None.
Welcome to the Kueue Pay Payment Gateway Solutions Developer API Documentation. This comprehensive guide will empower you to seamlessly integrate our advanced payment gateway into your website, enhancing your customers’ payment experience and enabling efficient transaction processing. The Kueue Pay Developer API is designed for developers and entrepreneurs who seek simplicity, security, and reliability in their payment processing solutions.
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