cpp/2025_3_0/page_manual_gecipher.html

  // This example demonstrates the encryption and decryption of a string.


  Char plainText[] = "O brave new world / That has such people in't!";

  const Int32 length = sizeof(plainText);


  ApplicationOutput("Plain Text: @"_s, maxon::String(plainText));


  // Define an en-/decryption key.

  const Char key[32] = { '7', 'c', '3', '0', 'e', '0', '0', 'b', 'b', '6', '2', '7', '1', '4', '9', '5' };

  const Int32 keyLength = sizeof(key);  // in bytes


  // Initialize GeCipher256 instance.

  GeCipher256 cipher;

  if (!cipher.Open(key, keyLength, false))

    return maxon::UnexpectedError(MAXON_SOURCE_LOCATION, "The function exited unexpectedly on initializing GeCipher256"_s);


  // Encryption is in-situ.

  cipher.Encrypt(plainText, length);


  // Get a copy of the encrypted string, just for the purpose of displaying it on console.

  Char plainTextEncoded[sizeof(plainText) + 1]; // one extra byte for null termination

  CopyMem(plainText, plainTextEncoded, length);

  plainTextEncoded[sizeof(plainText)] = 0; // string null termination


  // Note: This is too simple and might only show part of the string, if the encoded string contains null bytes.

  ApplicationOutput("Encoded Text: @"_s, maxon::String(plainTextEncoded));


  // Decryption is in-situ.

  cipher.Decrypt(plainText, length);


  const maxon::String str { (char*)plainText };

  ApplicationOutput("Decoded text: @"_s, str);


  cipher.Close();

maxon::String
Definition: string.h:1287

MAXON_SOURCE_LOCATION
#define MAXON_SOURCE_LOCATION
Definition: memoryallocationbase.h:69

ApplicationOutput
#define ApplicationOutput(formatString,...)
Definition: debugdiagnostics.h:204

cinema::Char
maxon::Char Char
Definition: ge_sys_math.h:47

cinema::Int32
maxon::Int32 Int32
Definition: ge_sys_math.h:51

cinema::CopyMem
void CopyMem(const void *s, void *d, Int size)
Definition: c4d_memory.h:65