无法将加密数据转换为字符串 [英] Can't convert encrypted data to String
问题描述
let key =1234
let original_text =hello
let data = original_text.data(using:.utf8)!
let encrypted_data = RNCryptor.encrypt(data:data,withPassword:key)
print(String(data:encrypted_data,encoding:.utf8))
打印零。如何将 encrypted_data
转换为字符串?
此外,这个 工作:
尝试! print(String(data:RNCryptor.decrypt(data:encrypted_data,withPassword:key),encoding:.utf8))
但这是原文,而不是密文。
加密数据是一个二进制的blob,在大多数情况下,不是有效的
UTF-8序列。因此转换为字符串
String(data:encrypted_data,encoding:.utf8)
失败并返回 nil
。如果你想要一个字符串表示
加密数据,那么你可以使用(例如)Base64编码:
print(encrypted_data.base64EncodedString())
或使用
extension Data {
func hexEncodedString() - > String {
return map {String(format:%02hhx,$ 0)} .joined()
}
}
from 如何将数据转换为swift中的十六进制字符串,作为十六进制编码字符串:
print(encrypted_data.hexEncodedString())
I am trying to learn to use RNCryptor. Here is what I am using:
let key = "1234"
let original_text = "hello"
let data = original_text.data(using: .utf8)!
let encrypted_data = RNCryptor.encrypt(data: data, withPassword: key)
print(String(data: encrypted_data, encoding: .utf8))
This prints 'nil'. How can I convert encrypted_data
to a String?
Also, this does work:
try! print(String(data: RNCryptor.decrypt(data: encrypted_data, withPassword: key), encoding: .utf8))
but this is the original text and not the cipher text.
The encrypted data is a binary blob, and in most cases not a valid UTF-8 sequence. Therefore the conversion to a string
String(data: encrypted_data, encoding: .utf8)
fails and returns nil
. If you want a string representation of the
encrypted data then you can use (for example) the Base64 encoding:
print(encrypted_data.base64EncodedString())
or, using
extension Data {
func hexEncodedString() -> String {
return map { String(format: "%02hhx", $0) }.joined()
}
}
from How to convert Data to hex string in swift, as a hex-encoded string:
print(encrypted_data.hexEncodedString())
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