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Usage descriptions
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1 sample_cipher.c:
  Show how to use the interfaces for AES encryption and decryption.
2 sample_cipher_efuse.c:
  Show how to use the CA key for AES encryption and decryption.
3 sample_cipher_via.c:
  Show how to use the interfaces of AES that can use virtual address.
4 sample_hash.c:
  Show how to use the interfaces for calclating message of hash.
5 sample_multicipher.c:
  Show how to use the interfaces for multiple blocks encryption and decryption.
6 sample_rng.c:
  Show how to use the interfaces for generating random values.
7 sample_rsa_enc.c:
  Show how to use the interfaces for RSA encryption and decryption.
8 sample_rsa_sign.c:
  Show how to use the interfaces of RSA to sign and verify.