Add OID for HMAC-RIPEMD160

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/include/mbedtls/oid.h b/include/mbedtls/oid.h
index 3c9831b..9545072 100644
--- a/include/mbedtls/oid.h
+++ b/include/mbedtls/oid.h
@@ -297,6 +297,8 @@
 
 #define MBEDTLS_OID_HMAC_SHA3_512               MBEDTLS_OID_NIST_ALG "\x02\x10" /**< id-hmacWithSHA3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) hmacWithSHA3-512(16) } */
 
+#define MBEDTLS_OID_HMAC_RIPEMD160              MBEDTLS_OID_INTERNET "\x05\x05\x08\x01\x04" /**< id-hmacWithSHA1 OBJECT IDENTIFIER ::= {iso(1) iso-identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) ipsec(8) isakmpOakley(1) hmacRIPEMD160(4)} */
+
 /*
  * Encryption algorithms
  */
diff --git a/library/oid.c b/library/oid.c
index e12f924..608b6c8 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -863,6 +863,12 @@
         MBEDTLS_MD_SHA3_512,
     },
 #endif /* MBEDTLS_MD_CAN_SHA3_512 */
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+    {
+        OID_DESCRIPTOR(MBEDTLS_OID_HMAC_RIPEMD160,    "hmacRIPEMD160",    "HMAC-RIPEMD160"),
+        MBEDTLS_MD_RIPEMD160,
+    },
+#endif /* MBEDTLS_MD_CAN_RIPEMD160 */
     {
         NULL_OID_DESCRIPTOR,
         MBEDTLS_MD_NONE,