X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Flib%2Fcrypto.cc;h=c67fc27fa17f9c5de899076ac1c70f54b79f112a;hb=8f12e84009d7c2685bb2eeb32665876463d4e6e5;hp=69e041cb2cff83b70891240e46928e5152f31de8;hpb=5ab0c3bc04e4aa5acd883bb8126fc6b185c6c5d6;p=dcpomatic.git diff --git a/src/lib/crypto.cc b/src/lib/crypto.cc index 69e041cb2..c67fc27fa 100644 --- a/src/lib/crypto.cc +++ b/src/lib/crypto.cc @@ -29,30 +29,29 @@ #include using std::string; -using boost::shared_array; using namespace dcpomatic; /** The cipher that this code uses */ #define CIPHER EVP_aes_256_cbc() -shared_array +dcp::Data dcpomatic::random_iv () { EVP_CIPHER const * cipher = CIPHER; - shared_array iv (new unsigned char[EVP_CIPHER_iv_length(cipher)]); - RAND_bytes (iv.get(), EVP_CIPHER_iv_length(cipher)); + dcp::Data iv (EVP_CIPHER_iv_length(cipher)); + RAND_bytes (iv.data().get(), iv.size()); return iv; } - + dcp::Data -dcpomatic::encrypt (string plaintext, shared_array key, shared_array iv) +dcpomatic::encrypt (string plaintext, dcp::Data key, dcp::Data iv) { EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new (); if (!ctx) { throw CryptoError ("could not create cipher context"); } - int r = EVP_EncryptInit_ex (ctx, CIPHER, 0, key.get(), iv.get()); + int r = EVP_EncryptInit_ex (ctx, CIPHER, 0, key.data().get(), iv.data().get()); if (r != 1) { throw CryptoError ("could not initialise cipher context for encryption"); } @@ -60,7 +59,7 @@ dcpomatic::encrypt (string plaintext, shared_array key, sha dcp::Data ciphertext (plaintext.size() * 2); int len; - r = EVP_EncryptUpdate (ctx, ciphertext.data().get(), &len, (unsigned char const *) plaintext.c_str(), plaintext.size()); + r = EVP_EncryptUpdate (ctx, ciphertext.data().get(), &len, (uint8_t const *) plaintext.c_str(), plaintext.size()); if (r != 1) { throw CryptoError ("could not encrypt data"); } @@ -80,14 +79,14 @@ dcpomatic::encrypt (string plaintext, shared_array key, sha } string -dcpomatic::decrypt (dcp::Data ciphertext, shared_array key, shared_array iv) +dcpomatic::decrypt (dcp::Data ciphertext, dcp::Data key, dcp::Data iv) { EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new (); if (!ctx) { throw CryptoError ("could not create cipher context"); } - int r = EVP_DecryptInit_ex (ctx, CIPHER, 0, key.get(), iv.get()); + int r = EVP_DecryptInit_ex (ctx, CIPHER, 0, key.data().get(), iv.data().get()); if (r != 1) { throw CryptoError ("could not initialise cipher context for decryption"); } @@ -101,7 +100,7 @@ dcpomatic::decrypt (dcp::Data ciphertext, shared_array key, } int plaintext_len = len; - + r = EVP_DecryptFinal_ex (ctx, plaintext.data().get() + len, &len); if (r != 1) { throw CryptoError ("could not finish decryption");