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authorRichard van der Hoff <richard@matrix.org>2016-05-16 16:25:09 +0100
committerRichard van der Hoff <richard@matrix.org>2016-05-23 18:55:05 +0100
commit294cf482ea49f690ac9eaad52f2574a90b2e51e6 (patch)
treea0b7e6505b020d30177a177f607bc514b9b15ed6 /include/olm/cipher.hh
parentf9139dfa6aea6ca8c4054a5b5fff9be484d978fa (diff)
Convert cipher.hh to plain C
Diffstat (limited to 'include/olm/cipher.hh')
-rw-r--r--include/olm/cipher.hh132
1 files changed, 0 insertions, 132 deletions
diff --git a/include/olm/cipher.hh b/include/olm/cipher.hh
deleted file mode 100644
index c561972..0000000
--- a/include/olm/cipher.hh
+++ /dev/null
@@ -1,132 +0,0 @@
-/* Copyright 2015 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef OLM_CIPHER_HH_
-#define OLM_CIPHER_HH_
-
-#include <cstdint>
-#include <cstddef>
-
-namespace olm {
-
-class Cipher {
-public:
- virtual ~Cipher();
-
- /**
- * Returns the length of the message authentication code that will be
- * appended to the output.
- */
- virtual std::size_t mac_length() const = 0;
-
- /**
- * Returns the length of cipher-text for a given length of plain-text.
- */
- virtual std::size_t encrypt_ciphertext_length(
- std::size_t plaintext_length
- ) const = 0;
-
- /*
- * Encrypts the plain-text into the output buffer and authenticates the
- * contents of the output buffer covering both cipher-text and any other
- * associated data in the output buffer.
- *
- * |---------------------------------------output_length-->|
- * output |--ciphertext_length-->| |---mac_length-->|
- * ciphertext
- *
- * The plain-text pointers and cipher-text pointers may be the same.
- *
- * Returns std::size_t(-1) if the length of the cipher-text or the output
- * buffer is too small. Otherwise returns the length of the output buffer.
- */
- virtual std::size_t encrypt(
- std::uint8_t const * key, std::size_t key_length,
- std::uint8_t const * plaintext, std::size_t plaintext_length,
- std::uint8_t * ciphertext, std::size_t ciphertext_length,
- std::uint8_t * output, std::size_t output_length
- ) const = 0;
-
- /**
- * Returns the maximum length of plain-text that a given length of
- * cipher-text can contain.
- */
- virtual std::size_t decrypt_max_plaintext_length(
- std::size_t ciphertext_length
- ) const = 0;
-
- /**
- * Authenticates the input and decrypts the cipher-text into the plain-text
- * buffer.
- *
- * |----------------------------------------input_length-->|
- * input |--ciphertext_length-->| |---mac_length-->|
- * ciphertext
- *
- * The plain-text pointers and cipher-text pointers may be the same.
- *
- * Returns std::size_t(-1) if the length of the plain-text buffer is too
- * small or if the authentication check fails. Otherwise returns the length
- * of the plain text.
- */
- virtual std::size_t decrypt(
- std::uint8_t const * key, std::size_t key_length,
- std::uint8_t const * input, std::size_t input_length,
- std::uint8_t const * ciphertext, std::size_t ciphertext_length,
- std::uint8_t * plaintext, std::size_t max_plaintext_length
- ) const = 0;
-};
-
-
-class CipherAesSha256 : public Cipher {
-public:
- CipherAesSha256(
- std::uint8_t const * kdf_info, std::size_t kdf_info_length
- );
-
- virtual std::size_t mac_length() const;
-
- virtual std::size_t encrypt_ciphertext_length(
- std::size_t plaintext_length
- ) const;
-
- virtual std::size_t encrypt(
- std::uint8_t const * key, std::size_t key_length,
- std::uint8_t const * plaintext, std::size_t plaintext_length,
- std::uint8_t * ciphertext, std::size_t ciphertext_length,
- std::uint8_t * output, std::size_t output_length
- ) const;
-
- virtual std::size_t decrypt_max_plaintext_length(
- std::size_t ciphertext_length
- ) const;
-
- virtual std::size_t decrypt(
- std::uint8_t const * key, std::size_t key_length,
- std::uint8_t const * input, std::size_t input_length,
- std::uint8_t const * ciphertext, std::size_t ciphertext_length,
- std::uint8_t * plaintext, std::size_t max_plaintext_length
- ) const;
-
-private:
- std::uint8_t const * kdf_info;
- std::size_t kdf_info_length;
-};
-
-
-} // namespace
-
-
-#endif /* OLM_CIPHER_HH_ */