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(Swift) RSA Encrypt with Modulus and ExponentDemonstrates how to RSA encrypt with a given modulus and exponent. Note: This example requires Chilkat v11.0.0 or greater.
func chilkatTest() { var success: Bool = false // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. let rsa = CkoRsa()! // Assuming you already have a base64 modulus and exponent, // wrap it in XML like this: var modulus: String? = "qMBRpdYrAy5aMmo31NErUizh5sbweguSmh4wlK6uJEIDl+kwTlROnE34KOFExeTbJSX0WygPi+vWl0yNq7buIMUKpytossAAWut5khO3CQJxTk7G2gnEPNUUXHiExGgNrLzcSLv8YIlfVALhoRWyC67KOL+a+3taNq3h+BHeWhM=" var exponent: String? = "AQAB" let xml = CkoXml()! xml.tag = "RSAPublicKey" xml.newChild2("Modulus", content: modulus) xml.newChild2("Exponent", content: exponent) let pubKey = CkoPublicKey()! success = pubKey.load(from: xml) if success == false { print("\(pubKey.lastErrorText!)") return } success = rsa.use(pubKey) if success == false { print("\(rsa.lastErrorText!)") return } var usePrivateKey: Bool = false var plainText: String? = "message in a bottle" rsa.encodingMode = "base64" var encryptedStrBase64: String? = rsa.encryptStringENC(plainText, bUsePrivateKey: usePrivateKey) print("\(encryptedStrBase64!)") } |
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