Index: crypto/hmac_openssl.cc |
diff --git a/crypto/hmac_openssl.cc b/crypto/hmac_openssl.cc |
index 6fbc4374c8556660342f82dc13a11eafb6d98e5c..8b7b96d69b7a428ee267826b8fe10a080a19a1e5 100644 |
--- a/crypto/hmac_openssl.cc |
+++ b/crypto/hmac_openssl.cc |
@@ -42,7 +42,7 @@ HMAC::~HMAC() { |
bool HMAC::Sign(const std::string& data, |
unsigned char* digest, |
- int digest_length) { |
+ int digest_length) const { |
DCHECK_GE(digest_length, 0); |
DCHECK(!plat_->key.empty()); // Init must be called before Sign. |