I loaded the following code into an XCode 7.1.1 project added the location
of crypto++ headers and libraries to their respective search paths. I then
added the crypto++ libraries libcryptopp.a and libcryptopp.dyld Link Binary
With Libraries list. The code compiled successfully and began running. I
then receive the following error:
*dyld: Library not loaded: libcryptopp.dylib*
* Referenced from:
/Users/arthur/Library/Developer/Xcode/DerivedData/cryptoppAES-bbtucachjqqaeediqkjywpllseec/Build/Products/Debug/cryptoppAES*
* Reason: image not found*
*The following error from Thread 1*
dyld`dyld_fatal_error:
0x7fff5fc01074 <+0>: int3
-> 0x7fff5fc01075 <+1>: nop
dyld`_dyld_start:
0x7fff5fc01000 <+0>: popq %rdi
0x7fff5fc01001 <+1>: pushq $0x0
0x7fff5fc01003 <+3>: movq %rsp, %rbp
0x7fff5fc01006 <+6>: andq $-0x10, %rsp
0x7fff5fc0100a <+10>: subq $0x10, %rsp
0x7fff5fc0100e <+14>: movl 0x8(%rbp), %esi
0x7fff5fc01011 <+17>: leaq 0x10(%rbp), %rdx
0x7fff5fc01015 <+21>: movq 0x37abc(%rip), %r8 ;
_dyld_start_static
0x7fff5fc0101c <+28>: leaq -0x23(%rip), %rcx ; <+0>
0x7fff5fc01023 <+35>: subq %r8, %rcx
0x7fff5fc01026 <+38>: leaq -0x102d(%rip), %r8
0x7fff5fc0102d <+45>: leaq -0x8(%rbp), %r9
0x7fff5fc01031 <+49>: callq 0x7fff5fc01076 ;
dyldbootstrap::start(macho_header const*, int, char const**, long,
macho_header const*, unsigned long*)
-> 0x7fff5fc01036 <+54>: movq -0x8(%rbp), %rdi
0x7fff5fc0103a <+58>: cmpq $0x0, %rdi
0x7fff5fc0103e <+62>: jne 0x7fff5fc01050 ; <+80>
0x7fff5fc01040 <+64>: movq %rbp, %rsp
0x7fff5fc01043 <+67>: addq $0x8, %rsp
0x7fff5fc01047 <+71>: movq $0x0, %rbp
0x7fff5fc0104e <+78>: jmpq *%rax
0x7fff5fc01050 <+80>: addq $0x10, %rsp
0x7fff5fc01054 <+84>: pushq %rdi
0x7fff5fc01055 <+85>: movq 0x8(%rbp), %rdi
0x7fff5fc01059 <+89>: leaq 0x10(%rbp), %rsi
0x7fff5fc0105d <+93>: leaq 0x8(%rsi,%rdi,8), %rdx
0x7fff5fc01062 <+98>: movq %rdx, %rcx
0x7fff5fc01065 <+101>: movq (%rcx), %r8
0x7fff5fc01068 <+104>: addq $0x8, %rcx
0x7fff5fc0106c <+108>: testq %r8, %r8
0x7fff5fc0106f <+111>: jne 0x7fff5fc01065 ; <+101>
0x7fff5fc01071 <+113>: jmpq *%rax
0x7fff5fc01073 <+115>: nop
Here is the code:
#include <iostream>
#include <iomanip>
#include "modes.h"
#include "aes.h"
#include "filters.h"
int main(int argc, char* argv[]) {
//Key and IV setup
//AES encryption uses a secret key of a variable length (128-bit,
196-bit or 256-
//bit). This key is secretly exchanged between two parties before
communication
//begins. DEFAULT_KEYLENGTH= 16 bytes
byte key[ CryptoPP::AES::DEFAULT_KEYLENGTH ], iv[ CryptoPP::AES::
BLOCKSIZE ];
memset( key, 0x00, CryptoPP::AES::DEFAULT_KEYLENGTH );
memset( iv, 0x00, CryptoPP::AES::BLOCKSIZE );
//
// String and Sink setup
//
std::string plaintext = "Now is the time for all good men to come to
the aide...";
std::string ciphertext;
std::string decryptedtext;
//
// Dump Plain Text
//
std::cout << "Plain Text (" << plaintext.size() << " bytes)" << std::
endl;
std::cout << plaintext;
std::cout << std::endl << std::endl;
//
// Create Cipher Text
//
CryptoPP::AES::Encryption aesEncryption(key, CryptoPP::AES::
DEFAULT_KEYLENGTH);
CryptoPP::CBC_Mode_ExternalCipher::Encryption cbcEncryption(
aesEncryption, iv );
CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption, new
CryptoPP::StringSink( ciphertext ) );
stfEncryptor.Put( reinterpret_cast<const unsigned char*>( plaintext.
c_str() ), plaintext.length() + 1 );
stfEncryptor.MessageEnd();
//
// Dump Cipher Text
//
std::cout << "Cipher Text (" << ciphertext.size() << " bytes)" << std::
endl;
for( int i = 0; i < ciphertext.size(); i++ ) {
std::cout << "0x" << std::hex << (0xFF & static_cast<byte
>(ciphertext[i])) << " ";
}
std::cout << std::endl << std::endl;
//
// Decrypt
//
CryptoPP::AES::Decryption aesDecryption(key, CryptoPP::AES::
DEFAULT_KEYLENGTH);
CryptoPP::CBC_Mode_ExternalCipher::Decryption cbcDecryption(
aesDecryption, iv );
CryptoPP::StreamTransformationFilter stfDecryptor(cbcDecryption, new
CryptoPP::StringSink( decryptedtext ) );
stfDecryptor.Put( reinterpret_cast<const unsigned char*>( ciphertext.
c_str() ), ciphertext.size() );
stfDecryptor.MessageEnd();
//
// Dump Decrypted Text
//
std::cout << "Decrypted Text: " << std::endl;
std::cout << decryptedtext;
std::cout << std::endl << std::endl;
return 0;
}
Once again any help greatly appreciated,
Arthur
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