lutil_SHA1Transform(context->state, context->buffer);
for ( ; i + 63 < len; i += 64)
lutil_SHA1Transform(context->state, &data[i]);
lutil_SHA1Transform(context->state, context->buffer);
for ( ; i + 63 < len; i += 64)
lutil_SHA1Transform(context->state, &data[i]);