1 files changed, 91 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/pk_pad/eme.h b/src/libs/3rdparty/botan/src/lib/pk_pad/eme.h
new file mode 100644
index 0000000000..26523bc881
--- /dev/null
+++ b/src/libs/3rdparty/botan/src/lib/pk_pad/eme.h
@@ -0,0 +1,91 @@
+/*
+* EME Classes
+* (C) 1999-2007 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_PUBKEY_EME_ENCRYPTION_PAD_H_
+#define BOTAN_PUBKEY_EME_ENCRYPTION_PAD_H_
+
+#include <botan/secmem.h>
+
+namespace Botan {
+
+class RandomNumberGenerator;
+
+/**
+* Encoding Method for Encryption
+*/
+class BOTAN_PUBLIC_API(2,0) EME
+   {
+   public:
+      virtual ~EME() = default;
+
+      /**
+      * Return the maximum input size in bytes we can support
+      * @param keybits the size of the key in bits
+      * @return upper bound of input in bytes
+      */
+      virtual size_t maximum_input_size(size_t keybits) const = 0;
+
+      /**
+      * Encode an input
+      * @param in the plaintext
+      * @param in_length length of plaintext in bytes
+      * @param key_length length of the key in bits
+      * @param rng a random number generator
+      * @return encoded plaintext
+      */
+      secure_vector<uint8_t> encode(const uint8_t in[],
+                                 size_t in_length,
+                                 size_t key_length,
+                                 RandomNumberGenerator& rng) const;
+
+      /**
+      * Encode an input
+      * @param in the plaintext
+      * @param key_length length of the key in bits
+      * @param rng a random number generator
+      * @return encoded plaintext
+      */
+      secure_vector<uint8_t> encode(const secure_vector<uint8_t>& in,
+                                 size_t key_length,
+                                 RandomNumberGenerator& rng) const;
+
+      /**
+      * Decode an input
+      * @param valid_mask written to specifies if output is valid
+      * @param in the encoded plaintext
+      * @param in_len length of encoded plaintext in bytes
+      * @return bytes of out[] written to along with
+      *         validity mask (0xFF if valid, else 0x00)
+      */
+      virtual secure_vector<uint8_t> unpad(uint8_t& valid_mask,
+                                        const uint8_t in[],
+                                        size_t in_len) const = 0;
+
+      /**
+      * Encode an input
+      * @param in the plaintext
+      * @param in_length length of plaintext in bytes
+      * @param key_length length of the key in bits
+      * @param rng a random number generator
+      * @return encoded plaintext
+      */
+      virtual secure_vector<uint8_t> pad(const uint8_t in[],
+                                      size_t in_length,
+                                      size_t key_length,
+                                      RandomNumberGenerator& rng) const = 0;
+   };
+
+/**
+* Factory method for EME (message-encoding methods for encryption) objects
+* @param algo_spec the name of the EME to create
+* @return pointer to newly allocated object of that type
+*/
+BOTAN_PUBLIC_API(2,0) EME*  get_eme(const std::string& algo_spec);
+
+}
+
+#endif