WLSecurityUtilsSwift

public class WLSecurityUtilsSwift

IBM Mobile First Platform Security Utils

  • Generates a key by using the PBKDF2 algorithm.

    Throws

    An error in case of failure.

    Declaration

    Swift

    public static func generateKey(withPassword: String, andSalt: String, andIterations: Int) throws -> String

    Parameters

    withPassword

    The password that is used to generate the key.
    andSalt

    The salt that is used to generate the key.
    andIterations

    The number of iterations that is passed to the key generation algorithm.

    Return Value

    The generated key.

  • Encrypts text with a key.

    Throws

    An error in case of failure.

    Declaration

    Swift

    public static func encryptText(text: String, withKey: String) throws -> [AnyHashable : Any]

    Parameters

    text

    The text to encrypt
    withKey

    The key used for encryption

    Return Value

    A Dictionary with the cipher text (ct), the IV (iv), the source (src) and the version (v).

  • Decrypts a dictionary that contains: src (source), v (version), ct (cipher text) and the iv (initialization vector).

    Throws

    An error in case of failure.

    Declaration

    Swift

    public static func decrypt(withKey: String, andDictionary: [AnyHashable : Any]) throws -> String

    Parameters

    withKey

    The key used for decryption
    andDictionary

    NSDictionary that is returned from encryptText:withKey:error:

    Return Value

    The decrypted text.

  • Generates a random string locally.

    Declaration

    Swift

    public static func generateRandomString(withBytes: Int32) -> String

    Parameters

    withBytes

    Number of bytes that is used to generate the random string

    Return Value

    The random string, nil if the operation failss

  • Gets a random string from the server.

    Declaration

    Swift

    public static func getRandomStringFromServer(withBytes: Int32, timeout:Int32, onCompletion: @escaping (URLResponse?,Data?,Error?) -> Void)

    Parameters

    withBytes

    Number of bytes that are used to generate the random string (maximum 64 bytes)
    timeout

    The time to wait for the network request to finish
    onCompletion

    Called when the request finished, the data field will have the random string (NSUTF8StringEncoding)

  • Encodes data to an NSString with Base64 encoding.

    Declaration

    Swift

    public static func base64String(data: Data, length: Int) -> String

    Parameters

    data

    Data
    length

    Length of the input

    Return Value

    Base64 encoded NSString

  • Reads Base64 encoded file and writes decoded output to output file

    Declaration

    Swift

    public static func decodeBase64(withFiles: FileHandle, output: String)

    Parameters

    withFiles

    Handle to input file; the caller is responsible for closing the file
    output

    Full string path to output file