private int implDoFinal(byte[] out, int outOfs, int outLen) throws BadPaddingException, IllegalBlockSizeException { if (bufOfs > maxInputSize) { throw new IllegalBlockSizeException( "Data must not be longer " + "than " + maxInputSize + " bytes"); } try { ensureInitialized(); PKCS11 p11 = token.p11; int n; switch (mode) { case MODE_ENCRYPT: n = p11.C_Encrypt(session.id(), buffer, 0, bufOfs, out, outOfs, outLen); break; case MODE_DECRYPT: n = p11.C_Decrypt(session.id(), buffer, 0, bufOfs, out, outOfs, outLen); break; case MODE_SIGN: byte[] tmpBuffer = new byte[bufOfs]; System.arraycopy(buffer, 0, tmpBuffer, 0, bufOfs); tmpBuffer = p11.C_Sign(session.id(), tmpBuffer); if (tmpBuffer.length > outLen) { throw new BadPaddingException("Output buffer too small"); } System.arraycopy(tmpBuffer, 0, out, outOfs, tmpBuffer.length); n = tmpBuffer.length; break; case MODE_VERIFY: n = p11.C_VerifyRecover(session.id(), buffer, 0, bufOfs, out, outOfs, outLen); break; default: throw new ProviderException("internal error"); } return n; } catch (PKCS11Exception e) { throw (BadPaddingException) new BadPaddingException("doFinal() failed").initCause(e); } finally { initialized = false; session = token.releaseSession(session); } }
private void cancelOperation() { token.ensureValid(); if (initialized == false) { return; } initialized = false; if ((session == null) || (token.explicitCancel == false)) { return; } if (session.hasObjects() == false) { session = token.killSession(session); return; } try { PKCS11 p11 = token.p11; int inLen = maxInputSize; int outLen = buffer.length; switch (mode) { case MODE_ENCRYPT: p11.C_Encrypt(session.id(), buffer, 0, inLen, buffer, 0, outLen); break; case MODE_DECRYPT: p11.C_Decrypt(session.id(), buffer, 0, inLen, buffer, 0, outLen); break; case MODE_SIGN: byte[] tmpBuffer = new byte[maxInputSize]; p11.C_Sign(session.id(), tmpBuffer); break; case MODE_VERIFY: p11.C_VerifyRecover(session.id(), buffer, 0, inLen, buffer, 0, outLen); break; default: throw new ProviderException("internal error"); } } catch (PKCS11Exception e) { // XXX ensure this always works, ignore error } }