Xbase++

Encrypt using Cert to produce -----BEGIN PKCS7----- ... -----END PKCS7-----

See more Encryption Examples

Demonstrates how to encrypt using a certificate to produce output such as:

-----BEGIN PKCS7-----
MIIHPwYJKoZIhvcNAQcEoIIHMDCCBywC ...
...
...
-----END PKCS7-----

The certificate to be used is not your own, but the certificate of the intended recipient of the message. Xbase++

LOCAL nSuccess
LOCAL oCrypt
LOCAL oCert
LOCAL cToBeEncrypted
LOCAL cEncryptedStr
LOCAL oSb
LOCAL cOutStr

nSuccess := 0

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

oCrypt := CreateObject("Chilkat.Crypt2")

//  Specify the encryption to be used.
//  "pki" indicates "Public Key Infrastructure" and will create a PKCS7 encrypted (enveloped) message.
oCrypt:CryptAlgorithm := "pki"
oCrypt:Pkcs7CryptAlg := "aes"
oCrypt:KeyLength := 128
oCrypt:OaepHash := "sha256"
oCrypt:OaepPadding := 1

//  A certificate is needed as the encryption key..
oCert := CreateObject("Chilkat.Cert")
nSuccess := oCert:LoadFromFile("qa_data/certs/testCert.pem")
IF (nSuccess != 1)
    ? oCert:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Tell the crypt object to use the certificate.
oCrypt:SetEncryptCert(oCert)

cToBeEncrypted := "This string is to be encrypted."

//  Get the result in multi-line BASE64 MIME format.
oCrypt:EncodingMode := "base64_mime"

cEncryptedStr := oCrypt:EncryptStringENC(cToBeEncrypted)
IF (nSuccess != 1)
    ? oCrypt:LastErrorText
    oCrypt:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Make a "-----BEGIN PKCS7-----" ... "-----END PKCS7-----" sandwich...
oSb := CreateObject("Chilkat.StringBuilder")
oSb:AppendLine("-----BEGIN PKCS7-----", 1)
oSb:Append(cEncryptedStr)
oSb:AppendLine("-----END PKCS7-----", 1)

cOutStr := oSb:GetAsString()

? cOutStr

//  Sample output:

//  -----BEGIN PKCS7-----
//  MIICYQYJKoZIhvcNAQcDoIICUjCCAk4CAQAxggH5MIIB9QIBADCBsTCBmzELMAkGA1UEBhMCR0Ix
//  GzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMR
//  Q09NT0RPIENBIExpbWl0ZWQxQTA/BgNVBAMTOENPTU9ETyBTSEEtMjU2IENsaWVudCBBdXRoZW50
//  aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBAhEAuBl4qE2MODB05C5h53M5UDA4BgkqhkiG9w0B
//  AQcwK6APMA0GCWCGSAFlAwQCAQUAoRgwFgYJKoZIhvcNAQEIMAkGBSsOAwIaBQAEggEAyZejlE37
//  awl0bCWVbOCqf9yLSN17mZRamG8FHDh3nNu11G0+oyJtsPDEnSKsQig0V67MZ+hcWV+uf4ytcjyx
//  H0gs5uex+LwkB+c3ZTOt18IYWFtRilg1HFy1ZN3t0D2QbxYy+i1TXOOwp3gAHL45vRCJ0FbKyQ36
//  pKl0XLe+lRvp2EiJCKVjxtX8VcZOKT4xkG7yOARaCQceth6pA58Dg0yzAz7w4nD2UgAlNzrXG69X
//  e+7e7yfBv47RRqFiQqDpCn+fM/PmFbUyqBppMwc64yP+fJek8VyJw2/UaXWWM4iSKSflk90tiHwf
//  loEU3It4arnSv94fZQo0v129aBqpWzBMBgkqhkiG9w0BBwEwHQYJYIZIAWUDBAECBBCohUgm5qX+
//  TE6PxtPCmWi8gCBgbNg39emAB+AqLozm+vSLjZOGfg3M52gccKUJ8tg8XQ==
//  -----END PKCS7-----

oCrypt:destroy()
oCert:destroy()
oSb:destroy()