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(Swift 3,4,5...) PKCS7 Sign Text using RSA 2048, SHA256, Base64 OutputDemonstrates how to sign text using 2048-bit RSA with SHA256, producing PKCS#7 output in Base64. The certificate w/ private key used for signing is loaded from a .p12/.pfx file.
func chilkatTest() { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. let cert = CkoCert()! // Load the cert and private key. Whatever the private key happens to be, // such as RSA or ECC, then Chilkat will use it. If the private key is // a 2048-bit RSA key, then that's what will be used.. var success: Bool = cert.loadPfxFile("qa_data/pfx/myCertAndKey.p12", password: "password") if success != true { print("\(cert.lastErrorText!)") return } let crypt = CkoCrypt2()! success = crypt.setSigning(cert) if success != true { print("\(crypt.lastErrorText!)") return } // Use SHA-256 crypt.hashAlgorithm = "sha256" // Hash the utf-8 byte representation of the string crypt.charset = "utf-8" // Return the result in base64 crypt.encodingMode = "base64" // Sign some text.. var textToSign: String? = "This is the text to be hashed and signed." var sigBase64: String? = crypt.opaqueSignStringENC(textToSign) if crypt.lastMethodSuccess != true { print("\(crypt.lastErrorText!)") return } print("\(sigBase64!)") // The result: // MIIS2wYJKoZIhvcNAQc ... zGeeY4Oxg== } |
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