diff --git a/tests/suites/test_suite_cipher.des.data b/tests/suites/test_suite_cipher.des.data
index 77f7515b9..2ab7fe7f1 100644
--- a/tests/suites/test_suite_cipher.des.data
+++ b/tests/suites/test_suite_cipher.des.data
@@ -575,15 +575,15 @@ depends_on:MBEDTLS_DES_C
 test_vec_ecb:MBEDTLS_CIPHER_DES_ECB:MBEDTLS_ENCRYPT:"FEDCBA9876543210":"0123456789ABCDEF":"ED39D950FA74BCC4":0
 
 DES ECB Decrypt test vector (OpenSSL) #1
-depends_on:MBEDTLS_DES_C
+depends_on:MBEDTLS_DES_C:!MBEDTLS_CIPHER_ENCRYPT_ONLY
 test_vec_ecb:MBEDTLS_CIPHER_DES_ECB:MBEDTLS_DECRYPT:"0000000000000000":"8CA64DE9C1B123A7":"0000000000000000":0
 
 DES ECB Decrypt test vector (OpenSSL) #2
-depends_on:MBEDTLS_DES_C
+depends_on:MBEDTLS_DES_C:!MBEDTLS_CIPHER_ENCRYPT_ONLY
 test_vec_ecb:MBEDTLS_CIPHER_DES_ECB:MBEDTLS_DECRYPT:"FFFFFFFFFFFFFFFF":"7359B2163E4EDC58":"FFFFFFFFFFFFFFFF":0
 
 DES ECB Decrypt test vector (OpenSSL) #3
-depends_on:MBEDTLS_DES_C
+depends_on:MBEDTLS_DES_C:!MBEDTLS_CIPHER_ENCRYPT_ONLY
 test_vec_ecb:MBEDTLS_CIPHER_DES_ECB:MBEDTLS_DECRYPT:"43297FAD38E373FE":"EA676B2CB7DB2B7A":"762514B829BF486A":0
 
 DES3-EDE ECB Encrypt test vector (OpenSSL) #1
@@ -595,9 +595,9 @@ depends_on:MBEDTLS_DES_C
 test_vec_ecb:MBEDTLS_CIPHER_DES_EDE_ECB:MBEDTLS_ENCRYPT:"FFFFFFFFFFFFFFFF3000000000000000":"FFFFFFFFFFFFFFFF":"199E9D6DF39AA816":0
 
 DES3-EDE ECB Decrypt test vector (OpenSSL) #1
-depends_on:MBEDTLS_DES_C
+depends_on:MBEDTLS_DES_C:!MBEDTLS_CIPHER_ENCRYPT_ONLY
 test_vec_ecb:MBEDTLS_CIPHER_DES_EDE_ECB:MBEDTLS_DECRYPT:"0000000000000000FFFFFFFFFFFFFFFF":"9295B59BB384736E":"0000000000000000":0
 
 DES3-EDE ECB Decrypt test vector (OpenSSL) #2
-depends_on:MBEDTLS_DES_C
+depends_on:MBEDTLS_DES_C:!MBEDTLS_CIPHER_ENCRYPT_ONLY
 test_vec_ecb:MBEDTLS_CIPHER_DES_EDE_ECB:MBEDTLS_DECRYPT:"FFFFFFFFFFFFFFFF3000000000000000":"199E9D6DF39AA816":"FFFFFFFFFFFFFFFF":0
diff --git a/tests/suites/test_suite_des.function b/tests/suites/test_suite_des.function
index b846d777a..61ec8b8dc 100644
--- a/tests/suites/test_suite_des.function
+++ b/tests/suites/test_suite_des.function
@@ -34,7 +34,7 @@ exit:
 }
 /* END_CASE */
 
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:!MBEDTLS_CIPHER_ENCRYPT_ONLY */
 void des_decrypt_ecb(data_t *key_str, data_t *src_str, data_t *dst)
 {
     unsigned char output[100];
@@ -133,7 +133,7 @@ exit:
 }
 /* END_CASE */
 
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:!MBEDTLS_CIPHER_ENCRYPT_ONLY */
 void des3_decrypt_ecb(int key_count, data_t *key_str,
                       data_t *src_str, data_t *dst)
 {