bradfordbarr / polarssl

Polarssl examples

#Polarssl Examples

Some sample code to prove interoperability between PolarSSL generated RSA keys and OpenSSL generated RSA keys. The keys are parsed using a NodeJS program and turned into C buffers that can be used in executables. C application development would just use the key files as is and parse them using PolarSSL or OpenSSL APIs. I'm working with embedded C without a filesystem. C buffers seemed to be the easiest way to ingest the data.

To build, run:

make

This will create two executables, sign and verify. These executables will be placed in the ./bin directory. By default the application will use the openssl keys provided. To use PolarSSL keys run:

make POLARSSL_KEYS=1

To regenerate keys run:

make refresh

To generate a signature run:

sign $INFILE > $OUTFILE

To verify the signature run:

verify $INFILE $OUTFILE

Where $INFILE and $OUTFILE are the same files from the sign command.