ArrayIndexOutOfBoundsException at System.arraycopy in Blake2spDigest update method for message length 1007 bytes

[jonelo]

When hashing a message length of 1007 bytes with Blake2spDigest I got the following exception:

java.lang.ArrayIndexOutOfBoundsException: arraycopy: last destination index 495 out of bounds for byte[256]

I figured out that in that case the arraycopy call failed at line 102 at

            System.arraycopy(message, offset, buffer, left, len);

because of the values offset=512, buffer.length=256, left=0, and len=495

[jonelo]

a possible fix would be to increase the buffer size to 512 bytes as in commit jonelo@cdaf22c

[dghgit]

Fixed in 1.73