session-ios/SessionUtilitiesKit/Crypto/Data+SecureRandom.swift

14 lines
595 B
Swift

import Foundation
public extension Data {
/// Returns `size` bytes of random data generated using the default secure random number generator. See
/// [SecRandomCopyBytes](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes) for more information.
static func getSecureRandomData(ofSize size: UInt) -> Data? {
var data = Data(count: Int(size))
let result = data.withUnsafeMutableBytes { SecRandomCopyBytes(kSecRandomDefault, Int(size), $0.baseAddress!) }
guard result == errSecSuccess else { return nil }
return data
}
}