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-rw-r--r--src/util/crypto_hkdf.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/util/crypto_hkdf.c b/src/util/crypto_hkdf.c
index 86a814b12..7270b87b6 100644
--- a/src/util/crypto_hkdf.c
+++ b/src/util/crypto_hkdf.c
@@ -77,7 +77,11 @@ static const void *
77doHMAC (gcry_md_hd_t mac, const void *key, size_t key_len, const void *buf, 77doHMAC (gcry_md_hd_t mac, const void *key, size_t key_len, const void *buf,
78 size_t buf_len) 78 size_t buf_len)
79{ 79{
80 gcry_md_setkey (mac, key, key_len); 80 if (GPG_ERR_NO_ERROR != gcry_md_setkey (mac, key, key_len))
81 {
82 GNUNET_break (0);
83 return NULL;
84 }
81 gcry_md_write (mac, buf, buf_len); 85 gcry_md_write (mac, buf, buf_len);
82 86
83 return (const void *) gcry_md_read (mac, 0); 87 return (const void *) gcry_md_read (mac, 0);