diff --git a/src/Platform.h b/src/Platform.h
index bdda9a3..f7cd6dc 100644
--- a/src/Platform.h
+++ b/src/Platform.h
@@ -77,7 +77,7 @@
 #define BSWAP32(x) __builtin_bswap32(x)
 #define BSWAP64(x) __builtin_bswap64(x)
 #else
-#error Please define your platform's byteswap macros!
+#error Please define your platform byteswap macros!
 #endif
 
 #if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) || defined(__BIG_ENDIAN__)
diff --git a/src/PlatformCrypto.c b/src/PlatformCrypto.c
index 18ced76..c8bbebe 100644
--- a/src/PlatformCrypto.c
+++ b/src/PlatformCrypto.c
@@ -11,6 +11,10 @@ bool RandomStateInitialized = false;
 #include <openssl/evp.h>
 #include <openssl/rand.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#define EVP_CIPHER_CTX_reset(x) EVP_CIPHER_CTX_cleanup(x); EVP_CIPHER_CTX_init(x)
+#endif
+
 static int addPkcs7PaddingInPlace(unsigned char* plaintext, int plaintextLen) {
     int paddedLength = ROUND_TO_PKCS7_PADDED_LEN(plaintextLen);
     unsigned char paddingByte = (unsigned char)(16 - (plaintextLen % 16));