McEliece parameter tuple (n, k, t) through BouncyCastles (m, t, poly)
The parameters are specified in the parameters object. You give them normally in the constructor: new McElieceCCA2Parameters(m, t, poly). I am however not sure how they map to the canonical parameters of the crypto system.

Javadoc: http://bouncycastle.org/docs/docs1.5on/org/bouncycastle/pqc/crypto/mceliece/McElieceCCA2Parameters.html