diff --git a/src/common/Cryptography/ARC4.cpp b/src/common/Cryptography/ARC4.cpp
index f0d988f83..ba596f5da 100644
--- a/src/common/Cryptography/ARC4.cpp
+++ b/src/common/Cryptography/ARC4.cpp
@@ -7,34 +7,34 @@
 #include "ARC4.h"
 #include <openssl/sha.h>
 
-ARC4::ARC4(uint8 len) : m_ctx()
+ARC4::ARC4(uint32 len) : m_ctx(EVP_CIPHER_CTX_new())
 {
-    EVP_CIPHER_CTX_init(&m_ctx);
-    EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
-    EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
+    EVP_CIPHER_CTX_init(m_ctx);
+    EVP_EncryptInit_ex(m_ctx, EVP_rc4(), nullptr, nullptr, nullptr);
+    EVP_CIPHER_CTX_set_key_length(m_ctx, len);
 }
 
-ARC4::ARC4(uint8 *seed, uint8 len) : m_ctx()
+ARC4::ARC4(uint8* seed, uint32 len) : m_ctx(EVP_CIPHER_CTX_new())
 {
-    EVP_CIPHER_CTX_init(&m_ctx);
-    EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
-    EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
-    EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
+    EVP_CIPHER_CTX_init(m_ctx);
+    EVP_EncryptInit_ex(m_ctx, EVP_rc4(), nullptr, nullptr, nullptr);
+    EVP_CIPHER_CTX_set_key_length(m_ctx, len);
+    EVP_EncryptInit_ex(m_ctx, nullptr, nullptr, seed, nullptr);
 }
 
 ARC4::~ARC4()
 {
-    EVP_CIPHER_CTX_cleanup(&m_ctx);
+    EVP_CIPHER_CTX_free(m_ctx);
 }
 
-void ARC4::Init(uint8 *seed)
+void ARC4::Init(uint8* seed)
 {
-    EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
+    EVP_EncryptInit_ex(m_ctx, nullptr, nullptr, seed, nullptr);
 }
 
-void ARC4::UpdateData(int len, uint8 *data)
+void ARC4::UpdateData(int len, uint8* data)
 {
     int outlen = 0;
-    EVP_EncryptUpdate(&m_ctx, data, &outlen, data, len);
-    EVP_EncryptFinal_ex(&m_ctx, data, &outlen);
+    EVP_EncryptUpdate(m_ctx, data, &outlen, data, len);
+    EVP_EncryptFinal_ex(m_ctx, data, &outlen);
 }
diff --git a/src/common/Cryptography/ARC4.h b/src/common/Cryptography/ARC4.h
index 1746b5c74..8cb747e5b 100644
--- a/src/common/Cryptography/ARC4.h
+++ b/src/common/Cryptography/ARC4.h
@@ -13,13 +13,13 @@
 class ARC4
 {
     public:
-        ARC4(uint8 len);
-        ARC4(uint8 *seed, uint8 len);
+        ARC4(uint32 len);
+        ARC4(uint8* seed, uint32 len);
         ~ARC4();
-        void Init(uint8 *seed);
-        void UpdateData(int len, uint8 *data);
+        void Init(uint8* seed);
+        void UpdateData(int len, uint8* data);
     private:
-        EVP_CIPHER_CTX m_ctx;
+        EVP_CIPHER_CTX* m_ctx;
 };
 
 #endif
diff --git a/src/common/Cryptography/HMACSHA1.cpp b/src/common/Cryptography/HMACSHA1.cpp
index 9c6daacfb..5a973af92 100644
--- a/src/common/Cryptography/HMACSHA1.cpp
+++ b/src/common/Cryptography/HMACSHA1.cpp
@@ -8,38 +8,54 @@
 #include "BigNumber.h"
 #include "Common.h"
 
+#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L
+HMAC_CTX* HMAC_CTX_new()
+{
+    HMAC_CTX *ctx = new HMAC_CTX();
+    HMAC_CTX_init(ctx);
+    return ctx;
+}
+
+void HMAC_CTX_free(HMAC_CTX* ctx)
+{
+    HMAC_CTX_cleanup(ctx);
+    delete ctx;
+}
+#endif
+
+
 HmacHash::HmacHash(uint32 len, uint8 *seed)
 {
-    HMAC_CTX_init(&m_ctx);
-    HMAC_Init_ex(&m_ctx, seed, len, EVP_sha1(), NULL);
+    m_ctx = HMAC_CTX_new();
+    HMAC_Init_ex(m_ctx, seed, len, EVP_sha1(), nullptr);
     memset(m_digest, 0, sizeof(m_digest));
 }
 
 HmacHash::~HmacHash()
 {
-    HMAC_CTX_cleanup(&m_ctx);
+    HMAC_CTX_free(m_ctx);
 }
 
 void HmacHash::UpdateData(const std::string &str)
 {
-    HMAC_Update(&m_ctx, (uint8 const*)str.c_str(), str.length());
+    HMAC_Update(m_ctx, reinterpret_cast<uint8 const*>(str.c_str()), str.length());
 }
 
 void HmacHash::UpdateData(const uint8* data, size_t len)
 {
-    HMAC_Update(&m_ctx, data, len);
+   HMAC_Update(m_ctx, data, len);
 }
 
 void HmacHash::Finalize()
 {
     uint32 length = 0;
-    HMAC_Final(&m_ctx, (uint8*)m_digest, &length);
+    HMAC_Final(m_ctx, m_digest, &length);
     ASSERT(length == SHA_DIGEST_LENGTH);
 }
 
-uint8 *HmacHash::ComputeHash(BigNumber* bn)
+uint8* HmacHash::ComputeHash(BigNumber* bn)
 {
-    HMAC_Update(&m_ctx, bn->AsByteArray().get(), bn->GetNumBytes());
+    HMAC_Update(m_ctx, bn->AsByteArray().get(), bn->GetNumBytes());
     Finalize();
-    return (uint8*)m_digest;
+    return m_digest;
 }
diff --git a/src/common/Cryptography/HMACSHA1.h b/src/common/Cryptography/HMACSHA1.h
index d0fe889e4..51f45ea9a 100644
--- a/src/common/Cryptography/HMACSHA1.h
+++ b/src/common/Cryptography/HMACSHA1.h
@@ -24,11 +24,11 @@ class HmacHash
         void UpdateData(const std::string &str);
         void UpdateData(const uint8* data, size_t len);
         void Finalize();
-        uint8 *ComputeHash(BigNumber* bn);
-        uint8 *GetDigest() { return (uint8*)m_digest; }
+        uint8* ComputeHash(BigNumber* bn);
+        uint8* GetDigest() { return m_digest; }
         int GetLength() const { return SHA_DIGEST_LENGTH; }
     private:
-        HMAC_CTX m_ctx;
+        HMAC_CTX* m_ctx;
         uint8 m_digest[SHA_DIGEST_LENGTH];
 };
 #endif