X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fdecrypted_kdm.cc;h=9a9f2c2268bb1cd9a769321df83baee16c286f0d;hb=093525165f6397ba9eaffd19833dc978bcb32d55;hp=0a3eeabd41e6fc388b78f52ccbbdf7e8ae5087ca;hpb=5fbcd3a8dc711c6c42efabbac72ab0408f504ea2;p=libdcp.git diff --git a/src/decrypted_kdm.cc b/src/decrypted_kdm.cc index 0a3eeabd..9a9f2c22 100644 --- a/src/decrypted_kdm.cc +++ b/src/decrypted_kdm.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2013-2017 Carl Hetherington + Copyright (C) 2013-2021 Carl Hetherington This file is part of libdcp. @@ -31,10 +31,16 @@ files in the program, then also delete it here. */ + +/** @file src/decrypted_kdm.cc + * @brief DecryptedKDM class + */ + + #include "decrypted_kdm.h" #include "decrypted_kdm_key.h" #include "encrypted_kdm.h" -#include "reel_mxf.h" +#include "reel_encryptable_asset.h" #include "reel_asset.h" #include "util.h" #include "exceptions.h" @@ -48,6 +54,7 @@ #include #include + using std::list; using std::vector; using std::string; @@ -60,9 +67,11 @@ using std::shared_ptr; using boost::optional; using namespace dcp; + /* Magic value specified by SMPTE S430-1-2006 */ static uint8_t smpte_structure_id[] = { 0xf1, 0xdc, 0x12, 0x44, 0x60, 0x16, 0x9a, 0x0e, 0x85, 0xbc, 0x30, 0x06, 0x42, 0xf8, 0x66, 0xab }; + static void put (uint8_t ** d, string s) { @@ -70,6 +79,7 @@ put (uint8_t ** d, string s) (*d) += s.length(); } + static void put (uint8_t ** d, uint8_t const * s, int N) { @@ -77,6 +87,7 @@ put (uint8_t ** d, uint8_t const * s, int N) (*d) += N; } + void DecryptedKDM::put_uuid (uint8_t ** d, string id) { @@ -96,6 +107,7 @@ DecryptedKDM::put_uuid (uint8_t ** d, string id) *d += 16; } + string DecryptedKDM::get_uuid (unsigned char ** p) { @@ -114,6 +126,7 @@ DecryptedKDM::get_uuid (unsigned char ** p) return buffer; } + static string get (uint8_t ** p, int N) { @@ -126,16 +139,17 @@ get (uint8_t ** p, int N) return g; } + DecryptedKDM::DecryptedKDM (EncryptedKDM const & kdm, string private_key) { /* Read the private key */ - BIO* bio = BIO_new_mem_buf (const_cast (private_key.c_str ()), -1); + auto bio = BIO_new_mem_buf (const_cast(private_key.c_str()), -1); if (!bio) { throw MiscError ("could not create memory BIO"); } - RSA* rsa = PEM_read_bio_RSAPrivateKey (bio, 0, 0, 0); + auto rsa = PEM_read_bio_RSAPrivateKey (bio, 0, 0, 0); if (!rsa) { throw FileError ("could not read RSA private key file", private_key, errno); } @@ -148,7 +162,7 @@ DecryptedKDM::DecryptedKDM (EncryptedKDM const & kdm, string private_key) int const cipher_value_len = base64_decode (i, cipher_value, sizeof (cipher_value)); /* Decrypt it */ - unsigned char * decrypted = new unsigned char[RSA_size(rsa)]; + auto decrypted = new unsigned char[RSA_size(rsa)]; int const decrypted_len = RSA_private_decrypt (cipher_value_len, cipher_value, decrypted, rsa, RSA_PKCS1_OAEP_PADDING); if (decrypted_len == -1) { delete[] decrypted; @@ -217,6 +231,7 @@ DecryptedKDM::DecryptedKDM (EncryptedKDM const & kdm, string private_key) _issue_date = kdm.issue_date (); } + DecryptedKDM::DecryptedKDM ( LocalTime not_valid_before, LocalTime not_valid_after, @@ -233,9 +248,10 @@ DecryptedKDM::DecryptedKDM ( } + DecryptedKDM::DecryptedKDM ( string cpl_id, - map, Key> keys, + map, Key> keys, LocalTime not_valid_before, LocalTime not_valid_after, string annotation_text, @@ -248,11 +264,12 @@ DecryptedKDM::DecryptedKDM ( , _content_title_text (content_title_text) , _issue_date (issue_date) { - for (map, Key>::const_iterator i = keys.begin(); i != keys.end(); ++i) { + for (map, Key>::const_iterator i = keys.begin(); i != keys.end(); ++i) { add_key (i->first->key_type(), i->first->key_id().get(), i->second, cpl_id, Standard::SMPTE); } } + DecryptedKDM::DecryptedKDM ( shared_ptr cpl, Key key, @@ -270,7 +287,7 @@ DecryptedKDM::DecryptedKDM ( { /* Create DecryptedKDMKey objects for each encryptable asset */ bool did_one = false; - for (auto i: cpl->reel_mxfs()) { + for (auto i: cpl->reel_file_assets()) { if (i->key_id()) { add_key (i->key_type(), i->key_id().get(), key, cpl->id(), Standard::SMPTE); did_one = true; @@ -282,23 +299,21 @@ DecryptedKDM::DecryptedKDM ( } } -/** @param type (MDIK, MDAK etc.) - * @param key_id Key ID. - * @param key The actual symmetric key. - * @param cpl_id ID of CPL that the key is for. - */ + void DecryptedKDM::add_key (optional type, string key_id, Key key, string cpl_id, Standard standard) { _keys.push_back (DecryptedKDMKey (type, key_id, key, cpl_id, standard)); } + void DecryptedKDM::add_key (DecryptedKDMKey key) { _keys.push_back (key); } + EncryptedKDM DecryptedKDM::encrypt ( shared_ptr signer,