336 }
337 }
338
339 void reset(boolean doCancel) {
340 initialized = false;
341 if (pCtxt != null) {
342 pCtxt.dispose(doCancel);
343 pCtxt = null;
344 }
345 }
346
347 /**
348 * calls ucrypto_sign_init(...) or ucrypto_verify_init(...)
349 * @return pointer to the context
350 */
351 private native static long nativeInit(int mech, boolean sign,
352 long keyValue, int keyLength);
353
354 /**
355 * calls ucrypto_sign_update(...) or ucrypto_verify_update(...)
356 * @returns an error status code (0 means SUCCESS)
357 */
358 private native static int nativeUpdate(long pContext, boolean sign,
359 byte[] in, int inOfs, int inLen);
360 /**
361 * calls ucrypto_sign_update(...) or ucrypto_verify_update(...)
362 * @returns an error status code (0 means SUCCESS)
363 */
364 private native static int nativeUpdate(long pContext, boolean sign,
365 long pIn, int inLen);
366
367 /**
368 * calls ucrypto_sign_final(...) or ucrypto_verify_final(...)
369 * @returns the length of signature bytes or verification status.
370 * If negative, it indicates an error status code
371 */
372 private native static int nativeFinal(long pContext, boolean sign,
373 byte[] sig, int sigOfs, int sigLen);
374
375 // actual init() implementation - caller should clone key if needed
376 private void init(boolean sign, NativeKey key, int sigLength) {
377 reset(true);
378 this.sign = sign;
379 this.sigLength = sigLength;
380 this.key = key;
381 long pCtxtVal = nativeInit(mech.value(), sign, key.value(),
382 key.length());
383 initialized = (pCtxtVal != 0L);
384 if (initialized) {
385 pCtxt = new SignatureContextRef(this, pCtxtVal, sign);
386 } else {
387 throw new UcryptoException("Cannot initialize Signature");
388 }
389 }
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336 }
337 }
338
339 void reset(boolean doCancel) {
340 initialized = false;
341 if (pCtxt != null) {
342 pCtxt.dispose(doCancel);
343 pCtxt = null;
344 }
345 }
346
347 /**
348 * calls ucrypto_sign_init(...) or ucrypto_verify_init(...)
349 * @return pointer to the context
350 */
351 private native static long nativeInit(int mech, boolean sign,
352 long keyValue, int keyLength);
353
354 /**
355 * calls ucrypto_sign_update(...) or ucrypto_verify_update(...)
356 * @return an error status code (0 means SUCCESS)
357 */
358 private native static int nativeUpdate(long pContext, boolean sign,
359 byte[] in, int inOfs, int inLen);
360 /**
361 * calls ucrypto_sign_update(...) or ucrypto_verify_update(...)
362 * @return an error status code (0 means SUCCESS)
363 */
364 private native static int nativeUpdate(long pContext, boolean sign,
365 long pIn, int inLen);
366
367 /**
368 * calls ucrypto_sign_final(...) or ucrypto_verify_final(...)
369 * @return the length of signature bytes or verification status.
370 * If negative, it indicates an error status code
371 */
372 private native static int nativeFinal(long pContext, boolean sign,
373 byte[] sig, int sigOfs, int sigLen);
374
375 // actual init() implementation - caller should clone key if needed
376 private void init(boolean sign, NativeKey key, int sigLength) {
377 reset(true);
378 this.sign = sign;
379 this.sigLength = sigLength;
380 this.key = key;
381 long pCtxtVal = nativeInit(mech.value(), sign, key.value(),
382 key.length());
383 initialized = (pCtxtVal != 0L);
384 if (initialized) {
385 pCtxt = new SignatureContextRef(this, pCtxtVal, sign);
386 } else {
387 throw new UcryptoException("Cannot initialize Signature");
388 }
389 }
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