diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index 762c3f2..41fa2f3 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -318,6 +318,39 @@
 };
 #endif /* POLARSSL_ECP_DP_SECP521R1_ENABLED */
 
+#if defined(POLARSSL_ECP_DP_SECP224K1_ENABLED)
+static t_uint secp224k1_p[] = {
+    BYTES_TO_T_UINT_8( 0x6D, 0xE5, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
+    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
+};
+static t_uint secp224k1_a[] = {
+    BYTES_TO_T_UINT_2( 0x00, 0x00 ),
+};
+static t_uint secp224k1_b[] = {
+    BYTES_TO_T_UINT_2( 0x05, 0x00 ),
+};
+static t_uint secp224k1_gx[] = {
+    BYTES_TO_T_UINT_8( 0x5C, 0xA4, 0xB7, 0xB6, 0x0E, 0x65, 0x7E, 0x0F ),
+    BYTES_TO_T_UINT_8( 0xA9, 0x75, 0x70, 0xE4, 0xE9, 0x67, 0xA4, 0x69 ),
+    BYTES_TO_T_UINT_8( 0xA1, 0x28, 0xFC, 0x30, 0xDF, 0x99, 0xF0, 0x4D ),
+    BYTES_TO_T_UINT_4( 0x33, 0x5B, 0x45, 0xA1 ),
+};
+static t_uint secp224k1_gy[] = {
+    BYTES_TO_T_UINT_8( 0xA5, 0x61, 0x6D, 0x55, 0xDB, 0x4B, 0xCA, 0xE2 ),
+    BYTES_TO_T_UINT_8( 0x59, 0xBD, 0xB0, 0xC0, 0xF7, 0x19, 0xE3, 0xF7 ),
+    BYTES_TO_T_UINT_8( 0xD6, 0xFB, 0xCA, 0x82, 0x42, 0x34, 0xBA, 0x7F ),
+    BYTES_TO_T_UINT_4( 0xED, 0x9F, 0x08, 0x7E ),
+};
+static t_uint secp224k1_n[] = {
+    BYTES_TO_T_UINT_8( 0xF7, 0xB1, 0x9F, 0x76, 0x71, 0xA9, 0xF0, 0xCA ),
+    BYTES_TO_T_UINT_8( 0x84, 0x61, 0xEC, 0xD2, 0xE8, 0xDC, 0x01, 0x00 ),
+    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
+    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ),
+};
+#endif /* POLARSSL_ECP_DP_SECP224K1_ENABLED */
+
 #if defined(POLARSSL_ECP_DP_SECP256K1_ENABLED)
 static t_uint secp256k1_p[] = {
     BYTES_TO_T_UINT_8( 0x2F, 0xFC, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
@@ -681,6 +714,11 @@
             return( LOAD_GROUP( secp521r1 ) );
 #endif /* POLARSSL_ECP_DP_SECP521R1_ENABLED */
 
+#if defined(POLARSSL_ECP_DP_SECP224K1_ENABLED)
+        case POLARSSL_ECP_DP_SECP224K1:
+            return( LOAD_GROUP_A( secp224k1 ) );
+#endif /* POLARSSL_ECP_DP_SECP224K1_ENABLED */
+
 #if defined(POLARSSL_ECP_DP_SECP256K1_ENABLED)
         case POLARSSL_ECP_DP_SECP256K1:
             return( LOAD_GROUP_A( secp256k1 ) );