diff --git a/src/crypto_utils.c b/src/crypto_utils.c
index 3e962b3..1e232d4 100644
--- a/src/crypto_utils.c
+++ b/src/crypto_utils.c
@@ -126,6 +126,9 @@ struct ec_curve_mbed_id ec_curves_mbed[] = {
     {   { (unsigned char *) "\xAA\xDD\x9D\xB8\xDB\xE9\xC4\x8B\x3F\xD4\xE6\xAE\x33\xC9\xFC\x07\xCB\x30\x8D\xB3\xB3\xC9\xD2\x0E\xD6\x63\x9C\xCA\x70\x33\x08\x71\x7D\x4D\x9B\x00\x9B\xC6\x68\x42\xAE\xCD\xA1\x2A\xE6\xA3\x80\xE6\x28\x81\xFF\x2F\x2D\x82\xC6\x85\x28\xAA\x60\x56\x58\x3A\x48\xF3", 64}, MBEDTLS_ECP_DP_BP512R1 },
     {   { (unsigned char *) "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFE\xFF\xFF\xEE\x37", 24}, MBEDTLS_ECP_DP_SECP192K1 },
     {   { (unsigned char *) "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFE\xFF\xFF\xFC\x2F", 32}, MBEDTLS_ECP_DP_SECP256K1 },
+    {   { (unsigned char *) "\x7f\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xed", 32}, MBEDTLS_ECP_DP_CURVE25519 },
+    {   { (unsigned char *) "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", 56}, MBEDTLS_ECP_DP_CURVE448 },
+
     {   { NULL, 0 }, MBEDTLS_ECP_DP_NONE }
 };