change size only if newSize > current size. contents are preserved and additional area is set to 0

for internal library use

return fixed ciphertext length, if one exists, otherwise return 0 ! \note "Fixed" here means length of ciphertext does not depend on length of plainte

for signature scheme

* GLEW, just like OpenGL or GLU, does not rely on the standard C library. * These functions implement the functionality required in this file. */

PKCS8PrivateKey