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(Visual FoxPro) Duplicate OpensSSL Command that Decrypts Binary DERThis example duplicates the following: openssl smime -decrypt -in INPUT_FILE -inform der -binary -out OUTPUT_FILE -recip PEM_CERT_AND_KEY -passin pass:PRIVKEY_PASSWORD Note: Although "smime" is the OpenSSL command, we're not really dealing with S/MIME. The arguments "-inform der -binary" indicate that the input is simply the binary DER (i.e. the PKCS7 binary encrypted object). The output can be any type of file (whatever was encrypted). Note: This example requires Chilkat v11.0.0 or greater.
LOCAL lnSuccess LOCAL loCrypt LOCAL loPem LOCAL loPrivkey LOCAL loCert lnSuccess = 0 * This example requires the Chilkat API to have been previously unlocked. * See Global Unlock Sample for sample code. loCrypt = CreateObject('Chilkat.Crypt2') loCrypt.CryptAlgorithm = "pki" loPem = CreateObject('Chilkat.Pem') lnSuccess = loPem.LoadPemFile("qa_data/pem/myPem.pem","password") IF (lnSuccess = 0) THEN ? loPem.LastErrorText RELEASE loCrypt RELEASE loPem CANCEL ENDIF loPrivkey = CreateObject('Chilkat.PrivateKey') lnSuccess = loPem.PrivateKeyAt(0,loPrivkey) IF (lnSuccess = 0) THEN ? loPem.LastErrorText RELEASE loCrypt RELEASE loPem RELEASE loPrivkey CANCEL ENDIF loCert = CreateObject('Chilkat.Cert') lnSuccess = loPem.CertAt(0,loCert) IF (lnSuccess = 0) THEN ? loPem.LastErrorText RELEASE loCrypt RELEASE loPem RELEASE loPrivkey RELEASE loCert CANCEL ENDIF lnSuccess = loCrypt.SetDecryptCert2(loCert,loPrivkey) IF (lnSuccess = 0) THEN ? loCrypt.LastErrorText RELEASE loCrypt RELEASE loPem RELEASE loPrivkey RELEASE loCert CANCEL ENDIF lnSuccess = loCrypt.CkDecryptFile("qa_data/infile.enc","qa_output/outfile.dat") IF (lnSuccess = 0) THEN ? loCrypt.LastErrorText RELEASE loCrypt RELEASE loPem RELEASE loPrivkey RELEASE loCert CANCEL ENDIF ? "Success." RELEASE loCrypt RELEASE loPem RELEASE loPrivkey RELEASE loCert |
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