diff --git a/sys/opencrypto/crypto.c b/sys/opencrypto/crypto.c
--- a/sys/opencrypto/crypto.c
+++ b/sys/opencrypto/crypto.c
@@ -511,6 +511,8 @@
 		return (&auth_hash_null);
 	case CRYPTO_RIPEMD160_HMAC:
 		return (&auth_hash_hmac_ripemd_160);
+	case CRYPTO_RIPEMD160:
+		return (&auth_hash_ripemd_160);
 	case CRYPTO_SHA1:
 		return (&auth_hash_sha1);
 	case CRYPTO_SHA2_224:
diff --git a/sys/opencrypto/cryptodev.c b/sys/opencrypto/cryptodev.c
--- a/sys/opencrypto/cryptodev.c
+++ b/sys/opencrypto/cryptodev.c
@@ -449,6 +449,9 @@
 			return (EINVAL);
 		}
 		break;
+	case CRYPTO_RIPEMD160:
+		thash = &auth_hash_ripemd_160;
+		break;
 	case CRYPTO_SHA1:
 		thash = &auth_hash_sha1;
 		break;
diff --git a/sys/opencrypto/cryptosoft.c b/sys/opencrypto/cryptosoft.c
--- a/sys/opencrypto/cryptosoft.c
+++ b/sys/opencrypto/cryptosoft.c
@@ -1177,6 +1177,7 @@
 			    csp->csp_auth_klen, swa->sw_octx);
 		}
 		break;
+	case CRYPTO_RIPEMD160:
 	case CRYPTO_SHA1:
 	case CRYPTO_SHA2_224:
 	case CRYPTO_SHA2_256:
diff --git a/sys/opencrypto/xform_auth.h b/sys/opencrypto/xform_auth.h
--- a/sys/opencrypto/xform_auth.h
+++ b/sys/opencrypto/xform_auth.h
@@ -70,6 +70,7 @@
 extern const struct auth_hash auth_hash_hmac_sha2_256;
 extern const struct auth_hash auth_hash_hmac_sha2_384;
 extern const struct auth_hash auth_hash_hmac_sha2_512;
+extern const struct auth_hash auth_hash_ripemd_160;
 extern const struct auth_hash auth_hash_sha1;
 extern const struct auth_hash auth_hash_sha2_224;
 extern const struct auth_hash auth_hash_sha2_256;
diff --git a/sys/opencrypto/xform_rmd160.c b/sys/opencrypto/xform_rmd160.c
--- a/sys/opencrypto/xform_rmd160.c
+++ b/sys/opencrypto/xform_rmd160.c
@@ -57,6 +57,18 @@
 static	int RMD160Update_int(void *, const void *, u_int);
 static	void RMD160Final_int(uint8_t *, void *);
 
+/* Plain hash */
+const struct auth_hash auth_hash_ripemd_160 = {
+	.type = CRYPTO_RIPEMD160,
+	.name = "RIPEMD-160",
+	.hashsize = RIPEMD160_HASH_LEN,
+	.ctxsize = sizeof(RMD160_CTX),
+	.blocksize = RIPEMD160_BLOCK_LEN,
+	.Init = RMD160Init_int,
+	.Update = RMD160Update_int,
+	.Final = RMD160Final_int,
+};
+
 /* Authentication instances */
 const struct auth_hash auth_hash_hmac_ripemd_160 = {
 	.type = CRYPTO_RIPEMD160_HMAC,
diff --git a/tools/tools/crypto/cryptocheck.c b/tools/tools/crypto/cryptocheck.c
--- a/tools/tools/crypto/cryptocheck.c
+++ b/tools/tools/crypto/cryptocheck.c
@@ -168,6 +168,8 @@
 	const EVP_MD *(*evp_md)(void);
 	int pkey;
 } algs[] = {
+	{ .name = "ripemd160", .mac = CRYPTO_RIPEMD160, .type = T_HASH,
+	  .evp_md = EVP_ripemd160 },
 	{ .name = "sha1", .mac = CRYPTO_SHA1, .type = T_HASH,
 	  .evp_md = EVP_sha1 },
 	{ .name = "sha224", .mac = CRYPTO_SHA2_224, .type = T_HASH,