Ruby

Create PKCS7 Signed File (.p7m)

See more Encryption Examples

Demonstrates how to sign a file to create a .p7m that contains both the file contents and the signature. Ruby

require 'chilkat'

success = false

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

crypt = Chilkat::CkCrypt2.new()

certStore = Chilkat::CkCertStore.new()

# Load a PFX file into a certificate store object.
success = certStore.LoadPfxFile("myPfx.pfx","pfxPassword")
if (success != true)
    print certStore.lastErrorText() + "\n";
    exit
end

# Get the certificate by subject common name.
# This should be the cert within the PFX that also
# has a private key (also stored within the PFX).
jsonCN = Chilkat::CkJsonObject.new()
jsonCN.UpdateString("CN","myCert")
cert = Chilkat::CkCert.new()
success = certStore.FindCert(jsonCN,cert)
if (success == false)
    print certStore.lastErrorText() + "\n";
    exit
end

# Tell the crypt object to use the certificate for signing:
success = crypt.SetSigningCert(cert)

# Sign a file, producing a .p7m as output.
# The input file is unchanged, the test.p7m contains the 
# contents of the input file and the signature.
inFile = "test.txt"
outFile = "testp7m"
success = crypt.CreateP7M(inFile,outFile)
if (success != true)
    print crypt.lastErrorText() + "\n";
    exit
end

print "Success!" + "\n";