*****************************
Generating 3 pairs of 16-bit RSA key-pairs...ok
averaged generation time = 1803.0 milliseconds
*****************************
Hashing a 102400 bytes plaintext with sha1 100 times...ok!
averaged hashing time = 346.02 milliseconds
*****************************
Signing a 102400 bytes plaintext with 16 bits private-key 100 times...
***** Exception Caught:
spki.SPKIException: spki.PrivateKey.sign(): java.security.InvalidKeyException: Signer's public key modulus too short.
