1 files changed, 70 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/kdf/prf_tls/prf_tls.h b/comm/third_party/botan/src/lib/kdf/prf_tls/prf_tls.h
new file mode 100644
index 0000000000..603086a7e9
--- /dev/null
+++ b/comm/third_party/botan/src/lib/kdf/prf_tls/prf_tls.h
@@ -0,0 +1,70 @@
+/*
+* TLS v1.0 and v1.2 PRFs
+* (C) 2004-2010 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_TLS_PRF_H_
+#define BOTAN_TLS_PRF_H_
+
+#include <botan/kdf.h>
+#include <botan/mac.h>
+
+BOTAN_FUTURE_INTERNAL_HEADER(prf_tls.h)
+
+namespace Botan {
+
+/**
+* PRF used in TLS 1.0/1.1
+*/
+class BOTAN_PUBLIC_API(2,0) TLS_PRF final : public KDF
+   {
+   public:
+      std::string name() const override { return "TLS-PRF"; }
+
+      KDF* clone() const override { return new TLS_PRF; }
+
+      size_t kdf(uint8_t key[], size_t key_len,
+                 const uint8_t secret[], size_t secret_len,
+                 const uint8_t salt[], size_t salt_len,
+                 const uint8_t label[], size_t label_len) const override;
+
+      TLS_PRF(std::unique_ptr<MessageAuthenticationCode> hmac_md5,
+              std::unique_ptr<MessageAuthenticationCode> hmac_sha1) :
+         m_hmac_md5(std::move(hmac_md5)),
+         m_hmac_sha1(std::move(hmac_sha1))
+         {}
+
+      TLS_PRF();
+   private:
+      std::unique_ptr<MessageAuthenticationCode> m_hmac_md5;
+      std::unique_ptr<MessageAuthenticationCode> m_hmac_sha1;
+   };
+
+/**
+* PRF used in TLS 1.2
+*/
+class BOTAN_PUBLIC_API(2,0) TLS_12_PRF final : public KDF
+   {
+   public:
+      std::string name() const override { return "TLS-12-PRF(" + m_mac->name() + ")"; }
+
+      KDF* clone() const override { return new TLS_12_PRF(m_mac->clone()); }
+
+      size_t kdf(uint8_t key[], size_t key_len,
+                 const uint8_t secret[], size_t secret_len,
+                 const uint8_t salt[], size_t salt_len,
+                 const uint8_t label[], size_t label_len) const override;
+
+      /**
+      * @param mac MAC algorithm to use
+      */
+      explicit TLS_12_PRF(MessageAuthenticationCode* mac) : m_mac(mac) {}
+   private:
+      std::unique_ptr<MessageAuthenticationCode> m_mac;
+   };
+
+}
+
+#endif