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(Ruby) Convert ASN.1 to/from Binary DER, XML, and Base64

Demonstrates how to convert ASN.1 from and to any of the following formats: binary DER, Base64, and XML.

Chilkat Ruby Downloads

Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

asn = Chilkat::CkAsn.new()

#  Begin with loading ASN.1 from a binary DER/BER format file.
success = asn.LoadBinaryFile("/Users/chilkat/testData/p7b/test.p7b")
if (success != true)
    print asn.lastErrorText() + "\n";
    exit
end

#  Convert ASN.1 to XML:
strXml = asn.asnToXml()
if (asn.get_LastMethodSuccess() != true)
    print asn.lastErrorText() + "\n";
    exit
end

#  The XML returned by AsnToXml will be compact and not pretty-formatted.
#  Use Chilkat XML to format the XML better:
xml = Chilkat::CkXml.new()
success = xml.LoadXml(strXml)
#  Assuming success for this example..
#  This is formatted better for human viewing:
print xml.getXml() + "\n";

#  Now get the ASN.1 in base64 format.  Any encoding supported
#  by Chilkat can be passed, such as "hex", "uu", "quoted-printable", "base32", "modbase64", etc.
strBase64 = asn.getEncodedDer("base64")

#  Load the ASN.1 from XML:
asn2 = Chilkat::CkAsn.new()
success = asn2.LoadAsnXml(xml.getXml())
if (success != true)
    print asn2.lastErrorText() + "\n";
    exit
end

#  Load the ASN.1 from an encoded string, such as base64:
asn3 = Chilkat::CkAsn.new()
success = asn3.LoadEncoded(strBase64,"base64")
if (success != true)
    print asn3.lastErrorText() + "\n";
    exit
end


 

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