Visual FoxPro

openssl smime -encrypt -des3 -in <file> <pem file>

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OpenSSL SMIME encrypt file using PEM containing a certificate. Visual FoxPro

LOCAL lnSuccess
LOCAL loPem
LOCAL loCert
LOCAL loCrypt
LOCAL loBd
LOCAL loSbEncryptedMime

lnSuccess = 0

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

*  Load the cert from a PEM file.

loPem = CreateObject('Chilkat.Pem')
*  Our particular PEM was not encrypted, so we pass an empty password.
*  Also, a private key is not needed for encryption.  The PEM used to test this example
*  happens to have a private key, but it's not actually used.
lnSuccess = loPem.LoadPemFile("qa_data/openssl/rsaCertAndKey.pem","")
IF (lnSuccess = 0) THEN
    ? loPem.LastErrorText
    RELEASE loPem
    CANCEL
ENDIF

IF (loPem.NumCerts = 0) THEN
    ? "PEM does not contain any certificates."
    RELEASE loPem
    CANCEL
ENDIF

loCert = loPem.GetCert(0)
IF (loPem.LastMethodSuccess = 0) THEN
    ? loPem.LastErrorText
    RELEASE loPem
    CANCEL
ENDIF

*  -------------------------------------------------------------------------------------
*  Duplicate this OpenSSL command:   openssl smime -encrypt -des3 -in <file> <pem file>
*  -------------------------------------------------------------------------------------
loCrypt = CreateObject('Chilkat.Crypt2')
lnSuccess = loCrypt.SetEncryptCert(loCert)
IF (lnSuccess = 0) THEN
    ? loCrypt.LastErrorText
    RELEASE loCert
    RELEASE loPem
    RELEASE loCrypt
    CANCEL
ENDIF

RELEASE loCert

loCrypt.CryptAlgorithm = "PKI"
loCrypt.Pkcs7CryptAlg = "3des"
loCrypt.KeyLength = 168

*  Load the file to be encrypted.
loBd = CreateObject('Chilkat.BinData')
lnSuccess = loBd.LoadFile("qa_data/openssl/hello.txt")
IF (lnSuccess = 0) THEN
    ? "Failed to load the input file."
    RELEASE loPem
    RELEASE loCrypt
    RELEASE loBd
    CANCEL
ENDIF

*  Encrypt.
lnSuccess = loCrypt.EncryptBd(loBd)
IF (lnSuccess = 0) THEN
    ? loCrypt.LastErrorText
    RELEASE loPem
    RELEASE loCrypt
    RELEASE loBd
    CANCEL
ENDIF

*  The openssl smime -encrypt command produces encrypte MIME such as this:

*  MIME-Version: 1.0
*  Content-Disposition: attachment; filename="smime.p7m"
*  Content-Type: application/x-pkcs7-mime; smime-type=enveloped-data; name="smime.p7m"
*  Content-Transfer-Encoding: base64
*  
*  MIICzwYJKoZIhvcNAQcDoIICwDCCArwCAQAxggF8MIIBeAIBADBgMEoxCzAJBgNVBAYTAlVTMRYw
*  FAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQDExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBY
*  MwISA9Nqgb1dH/XTDNeKzN1nR85iMA0GCSqGSIb3DQEBAQUABIIBAIQqPexjxWovgxwKV/r3HL/U
*  EP9Yozvz5hBeX5VvRZjKSi4FRw5wapElPK+4FB82hiAR9Mi3c16PvPSVkJv3l78Mv5uaaOs/OmUz
*  mIHFB6Z+l2E52BDmUVWJZTQ09vdWy6+NIRlg2R9Z1NkmZ4BZCJk6mHB/Yx03IaOxK8LnwieDMthM
*  SvxbhJnIOISN7k7ofs+/0vTXUpdQ+tlmwyVySMGQ6VMk+z4sqZJ2stacqCPtt/aiSwJ9p0OKmihf
*  3KDJceXJtavIQeA97yz1LqPvle35mmd5sBhV9qQYdTV/KJ+YM5uEZ9BHYbvMJbADFHwKzhcEY3qA
*  7T9acmEsb7NycOIwggE1BgkqhkiG9w0BBwEwFAYIKoZIhvcNAwcECERX/ZoHweSkgIIBEMmCMx49
*  zjVAnGqRaBbvzQT1hg0uQSxIJjxMxC+HSuM+eY9oSOsbrw4uIijHKH9NdOpeDsdRzg2z5EBM7AlP
*  Ht9DyPW5C2deV6RPX4F8gyExz+JUXrd+3Yb3AKTdpDkTWDmNCeO0r/YSqp518+mfU5hG8e336u51
*  HAM44FeknA8oThWsD/wUB1e8vzsatK4UXW/KSu/166V7z+VT86kd+IHa7t60U9Yp0ZXgcM5Pb5Ni
*  69Qc5MKPzom2801H5UR/WjCgsxOIjOj49sKisjRy79skrJzxY5ZG05T0dKn6KC3TjRpIEEeOyhCd
*  Nm2Y7dcW8GLMepdhWay5vePmQxmvmhbAtBprIem14NcrYeG6D5wP

*  We have the body in bd
*  Construct the header and base64 body...
loSbEncryptedMime = CreateObject('Chilkat.StringBuilder')

loSbEncryptedMime.AppendLine("MIME-Version: 1.0",1)
loSbEncryptedMime.AppendLine('Content-Disposition: attachment; filename="smime.p7m"',1)
loSbEncryptedMime.AppendLine('Content-Type: application/x-pkcs7-mime; smime-type=enveloped-data; name="smime.p7m"',1)
loSbEncryptedMime.AppendLine("Content-Transfer-Encoding: base64",1)
loSbEncryptedMime.AppendLine("",1)
loSbEncryptedMime.AppendLine(loBd.GetEncoded("base64_mime"),1)

*  Show the result.
? loSbEncryptedMime.GetAsString()

*  or save to a file..
lnSuccess = loSbEncryptedMime.WriteFile("qa_output/encryptedMime.txt","utf-8",0)

RELEASE loPem
RELEASE loCrypt
RELEASE loBd
RELEASE loSbEncryptedMime