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-rw-r--r--src/common/crypto.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/common/crypto.h b/src/common/crypto.h
index 09cbbe704a..610ea460d7 100644
--- a/src/common/crypto.h
+++ b/src/common/crypto.h
@@ -146,6 +146,9 @@ void crypto_digest_get_digest(crypto_digest_env_t *digest,
crypto_digest_env_t *crypto_digest_dup(const crypto_digest_env_t *digest);
void crypto_digest_assign(crypto_digest_env_t *into,
const crypto_digest_env_t *from);
+void crypto_hmac_sha1(char *hmac_out,
+ const char *key, size_t key_len,
+ const char *msg, size_t msg_len);
/* Key negotiation */
crypto_dh_env_t *crypto_dh_new(void);