mirror of https://gerrit.osmocom.org/asn1c
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git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@1073 59561ff5-6e30-0410-9f3c-9617f08c8826 |
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README
GENERAL INFORMATION =================== The X.509 (PKIX1) certificate decoder. Invoking `make` will compile the ASN.1 specifications from the rfc3280.txt in the above directory. The ../../skeletons/asn-decoder-template.c will supply the missing "int main()" routine which drives the decoding process. x509dump USAGE ============== To use the code, you'll have to prepare an X.509 certificate in DER encoding. The typical X.509 certificate will have a PEM form (DER encoded data wrapped in base64, wrapped in PEM "BEGIN" and "END" sections). The openssl x509 utility may be used to convert between PEM and DER. EXAMPLE: Convert 'certificate.pem' into 'certificate.der': openssl x509 -inform PEM -in certificate.pem \ -outform DER -out certificate.der After convertsion, the x509dump utility may be used to dump the contents of the DER-encoded X.509 certificate: ./x509dump -x certificate.der # Print as XML (BASIC-XER) The full list of recognized command line options may be obtained with > ./x509dump -h Usage: ./x509dump [options] <data.ber> ... Where options are: -b <size> Set the i/o buffer size (default is 8192) -c Check ASN.1 constraints after decoding -d Enable debugging (-dd is even better) -n <num> Process files <num> times -s <size> Set the stack usage limit -p Print out the decoded contents -x Print out as XML