auth-generate-password.swift

public func generateHash(salt: String) throws -> String {
    let stringWithSalt = salt + self

    guard let stringArray = stringWithSalt.digest(.sha256)?.encode(.base64) else {
        throw GeneratePasswordError()
    }

    guard let stringHash = String(data: Data(bytes: stringArray, count: stringArray.count), encoding: .utf8) else {
        throw GeneratePasswordError()
    }

    return stringHash
}