I am writing a module for the EIP93 crypto engine. From what I have been reading on this mailing list, the driver should return the updated IV in order for the caller to “resume” or “continue” with this IV in another call. A code-snippet: int ivsize = crypto_skcipher_ivsize(skcipher); If (ivsize) memcpy(req->iv, rctx->lastiv, ivsize); Where rctx->lastiv was read from the hardware itself. The fail message I am getting is: [ 57.290000] alg: skcipher: changed 'req->iv' [ 57.370000] alg: skcipher: eip93-cbc-aes encryption co rrupted request struct on test vector 0, cfg="in-place" [ 57.380000] alg: skcipher: changed 'req->iv' [ 57.460000] alg: skcipher: eip93-ctr-aes encryption corrupted request struct on test vector 0, cfg="in-place" [ 57.470000] alg: skcipher: changed 'req->iv' [ 57.560000] alg: skcipher: eip93-rfc3686(ctr)-aes encryption corrupted request struct on test vector 0, cfg="in-place" [ 57.570000] alg: skcipher: changed 'req->iv’ Where/How should I return the new/updated IV ? Thanks, Richard van Schagen
