Question

我在我的应用程序中使用 RNCryptor 。我使用密码为纯文本生成了一个加密字符串，当我尝试使用密码解密加密字符串时，它不会给我原始的纯文本，而是给了我一些随机字符串。

我想我在字符串编码/解码中遗漏了一些内容，但我不确定我在这里缺少什么。

你能指导我解决这个问题吗？

代码

func encrypt(plainText : String, password: String) -> String {
    let data: Data = plainText.data(using: .utf8)!
    let encryptedData = RNCryptor.encrypt(data: data, withPassword: password)
    let encryptedString : String = encryptedData.base64EncodedString(options: Data.Base64EncodingOptions.lineLength76Characters)
    return encryptedString
}

func decrypt(encryptedText : String, password: String) -> String {
    do  {

        let data: Data = Data.init(base64Encoded: encryptedText, options: NSData.Base64DecodingOptions.ignoreUnknownCharacters)!

        let decryptedData = try RNCryptor.decrypt(data: data, withPassword: password)
        let decryptedString : String = decryptedData.base64EncodedString(options: Data.Base64EncodingOptions.lineLength76Characters)
        return decryptedString

    }
    catch {
        return "FAILED"
    }
}

 let plainText = "123456789"
 let password = "ABCDEFGHIJ"

 let encryptedText =  self.encrypt(plainText: plainText, password: password)
 let decryptedText = self.decrypt(encryptedText: encryptedText, password: password)

 print("ENCRYPTED TEXT : \(encryptedText)")
 print("DECRYPTED TEXT : \(decryptedText)")

加密文本：AwEsB6wlUSIJ31TAbaeAjVXP272zW89aa2rR9v6zYWwKUf6Hs5GSHekMKQT + n0vw6jMtjsQVhtzO   8AcqGpTLrQ9YR0PUS07P + 8HboCp6Ge8UxQ ==

解密文本：MTIzNDU2Nzg5

Answer 1

试试如下，现在它对我有效。

func encrypt(plainText : String, password: String) -> String {
        let data: Data = plainText.data(using: .utf8)!
        let encryptedData = RNCryptor.encrypt(data: data, withPassword: password)
        let encryptedString : String = encryptedData.base64EncodedString() // getting base64encoded string of encrypted data.
        return encryptedString
}

func decrypt(encryptedText : String, password: String) -> String {
        do  {
            let data: Data = Data(base64Encoded: encryptedText)! // Just get data from encrypted base64Encoded string.
            let decryptedData = try RNCryptor.decrypt(data: data, withPassword: password)
            let decryptedString = String(data: decryptedData, encoding: .utf8) // Getting original string, using same .utf8 encoding option,which we used for encryption.
            return decryptedString ?? ""
        }
        catch {
            return "FAILED"
        }
}

感谢。

Answer 2

在解密功能中，您必须首先解码Base64而不是RNC。

RNCryptor在iOS中没有解密

2 个答案: