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-rw-r--r--include/crypto/ecdh.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
index a9f98078d2..9784ecdd2f 100644
--- a/include/crypto/ecdh.h
+++ b/include/crypto/ecdh.h
@@ -26,6 +26,7 @@
#define ECC_CURVE_NIST_P192 0x0001
#define ECC_CURVE_NIST_P256 0x0002
#define ECC_CURVE_NIST_P384 0x0003
+#define ECC_CURVE_NIST_P521 0x0004
/**
* struct ecdh - define an ECDH private key