diff --git a/tests/suites/test_suite_rsa.data b/tests/suites/test_suite_rsa.data
index de5e569..92209c4 100644
--- a/tests/suites/test_suite_rsa.data
+++ b/tests/suites/test_suite_rsa.data
@@ -617,13 +617,13 @@
 rsa_selftest:
 
 RSA parse/write PKCS#1 private key - 1024 bits
-rsa_import_pkcs1_key:0:"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"
+rsa_parse_write_pkcs1_key:0:"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"
 
 RSA parse/write PKCS#1 public key - 1024 bits
-rsa_import_pkcs1_key:1:"308189028181009f091e6968b474f76f0e9c237c1d895996ae704b4f6d706acec8d2daac6209bf524aa3f658d0283adba1077f6cbe92e425dcde52290b239cade91be86c88425434986806e85734e159768f3dfea932baaa9409d25bace8ee9dce0cdde0903207299de575ae60feccf0daf82334ab83638539b0da74072f253acea8afc8e66bb70203010001"
+rsa_parse_write_pkcs1_key:1:"308189028181009f091e6968b474f76f0e9c237c1d895996ae704b4f6d706acec8d2daac6209bf524aa3f658d0283adba1077f6cbe92e425dcde52290b239cade91be86c88425434986806e85734e159768f3dfea932baaa9409d25bace8ee9dce0cdde0903207299de575ae60feccf0daf82334ab83638539b0da74072f253acea8afc8e66bb70203010001"
 
 RSA parse/write PKCS#1 private key - 2048 bits
-rsa_import_pkcs1_key:0:"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"
+rsa_parse_write_pkcs1_key:0:"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"
 
 RSA parse/write PKCS#1 public key - 2048 bits
-rsa_import_pkcs1_key:1:"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"
+rsa_parse_write_pkcs1_key:1:"3082010a0282010100dcabfd25f3b7d67155e5c2520518570e95754ef883a973f94b2b0fb2d7ad733a3b0976c6314770eaf728304ee61e0dfe91811fc4a8219fbc3687cb3cfca54b58804d1ed4de985dc827374cb31b7b23225e130858d6b812dee6a356a8f8d211ba0930d0ec38193cee0a186f4a760cc3aa40e1d04fe4a14506ed279a9080aedd2676a4026bcb1ee24b2c00853bffcc04b5fb3e542626c2b2c54a62f3d6e01df95544fdf85c22cc0846275cb9cdfe73876e94e532ced0bca9876de74ff1edc9c8ac89aa8586aa34ca6f44c972d1e73aaddae168a5e67ec69cd14f206155e6e1161e7aa6754e947d5d26ee5f8789598a79ea4ff0263e2b8bf90641320771955007d10203010001"
diff --git a/tests/suites/test_suite_rsa.function b/tests/suites/test_suite_rsa.function
index 315d4f6..62f593e 100644
--- a/tests/suites/test_suite_rsa.function
+++ b/tests/suites/test_suite_rsa.function
@@ -1373,7 +1373,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void rsa_import_pkcs1_key(int is_public, data_t *input)
+void rsa_parse_write_pkcs1_key(int is_public, data_t *input)
 {
     mbedtls_rsa_context rsa_ctx;
     unsigned char *input_start = input->x;
@@ -1388,13 +1388,21 @@
 
     mbedtls_rsa_init(&rsa_ctx);
 
+    /* Parse the key and write it back to output_buf. */
     if (is_public) {
         TEST_EQUAL(mbedtls_rsa_pubkey_parse(&rsa_ctx, &input_start, input_end), 0);
+        TEST_ASSERT(input_start == input_end);
         TEST_EQUAL(mbedtls_rsa_pubkey_write(&rsa_ctx, output_start, &output_end), input->len);
     } else {
         TEST_EQUAL(mbedtls_rsa_key_parse(&rsa_ctx, input->x, input->len), 0);
         TEST_EQUAL(mbedtls_rsa_key_write(&rsa_ctx, output_start, &output_end), input->len);
     }
+    /* This check holds because we alloacated an output buffer which is exactly
+     * large enough to contain the written data. */
+    TEST_ASSERT(output_end == output_start);
+
+    /* Check that the written key matches with the one provided in input. */
+    TEST_MEMORY_COMPARE(output_buf, input->len, input->x, input->len);
 
 exit:
     mbedtls_free(output_buf);