OutOfMemoryError/ NegativeArraySizeException on large arrays

[mprevel]

Hello,

Sha256:95 int newMessageLength = message.length + 1 + 8; can lead to a negative value that is used at Sha256:100 final byte[] paddedMessage = new byte[newMessageLength]; when message. length is greater than Integer.MAX_VALUE - 9 and resulting in a NegativeArraySizeException.

It may also lead to an OutOfMemoryError when building the array with an integer near Integer.MAX_VALUE since array max size is platform specific and can be a few bytes under Integer_MAX_VALUE.

[meyfa]

Confirmed. Probably needs a major overhaul of the padding logic for this to be fixed, but is doable because of the block-wise nature of SHA256.

[meyfa]

I hope to have fixed this issue in the latest commits. Please feel free to comment or open another issue if you notice anything else. Thanks!