diff options
Diffstat (limited to 'java/security/SignatureSpi.java')
| -rw-r--r-- | java/security/SignatureSpi.java | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/java/security/SignatureSpi.java b/java/security/SignatureSpi.java index 25d49dedd..3b46815ec 100644 --- a/java/security/SignatureSpi.java +++ b/java/security/SignatureSpi.java @@ -37,6 +37,7 @@ exception statement from your version. */ package java.security; +import java.nio.ByteBuffer; import java.security.spec.AlgorithmParameterSpec; /** @@ -131,6 +132,24 @@ public abstract class SignatureSpi throws SignatureException; /** + * Update this signature with the {@link java.nio.Buffer#remaining()} + * bytes of the given buffer. + * + * @param input The input buffer. + * @throws SignatureException + */ + protected void engineUpdate(ByteBuffer input) throws SignatureException + { + byte[] buf = new byte[4096]; + while (input.hasRemaining()) + { + int l = Math.min(input.remaining(), buf.length); + input.get(buf, 0, l); + engineUpdate(buf, 0, l); + } + } + + /** * Returns the signature bytes of all the data fed to this instance. The * format of the output depends on the underlying signature algorithm. * |