1 files changed, 62 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/block/blowfish/blowfish.h b/comm/third_party/botan/src/lib/block/blowfish/blowfish.h
new file mode 100644
index 0000000000..3ba39cbdbb
--- /dev/null
+++ b/comm/third_party/botan/src/lib/block/blowfish/blowfish.h
@@ -0,0 +1,62 @@
+/*
+* Blowfish
+* (C) 1999-2011 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_BLOWFISH_H_
+#define BOTAN_BLOWFISH_H_
+
+#include <botan/block_cipher.h>
+
+BOTAN_FUTURE_INTERNAL_HEADER(blowfish.h)
+
+namespace Botan {
+
+/**
+* Blowfish
+*/
+class BOTAN_PUBLIC_API(2,0) Blowfish final : public Block_Cipher_Fixed_Params<8, 1, 56>
+   {
+   public:
+      void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
+      void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
+
+      /**
+      * Modified EKSBlowfish key schedule, used for bcrypt password hashing
+      */
+      void salted_set_key(const uint8_t key[], size_t key_length,
+                          const uint8_t salt[], size_t salt_length,
+                          const size_t workfactor, bool salt_first = false);
+
+      BOTAN_DEPRECATED("Use Blowfish::salted_set_key taking salt length")
+      void eks_key_schedule(const uint8_t key[], size_t key_length,
+                            const uint8_t salt[16], size_t workfactor)
+         {
+         salted_set_key(key, key_length, salt, 16, workfactor);
+         }
+
+      void clear() override;
+      std::string name() const override { return "Blowfish"; }
+      BlockCipher* clone() const override { return new Blowfish; }
+   private:
+      void key_schedule(const uint8_t key[], size_t length) override;
+
+      void key_expansion(const uint8_t key[],
+                         size_t key_length,
+                         const uint8_t salt[],
+                         size_t salt_length);
+
+      void generate_sbox(secure_vector<uint32_t>& box,
+                         uint32_t& L, uint32_t& R,
+                         const uint8_t salt[],
+                         size_t salt_length,
+                         size_t salt_off) const;
+
+      secure_vector<uint32_t> m_S, m_P;
+   };
+
+}
+
+#endif