add test scenarios to decrypt and encrypt input and compare with given output
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 96d2c0f..9ad44e7 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1365,7 +1365,7 @@
 
     operation->key_set = 1;
     operation->alg = alg;
-    operation->block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE(key_type);
+    operation->block_size = PSA_ALG_IS_BLOCK_CIPHER( alg ) ? PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) : 1;
     if( PSA_ALG_IS_BLOCK_CIPHER( alg ) || ( alg == PSA_ALG_CTR ) )
     {
         operation->iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index d8cab1f..3bf93b8 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -107,7 +107,11 @@
 
 PSA Symmetric encryption: AES-128
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
-cipher_test_positive:PSA_ALG_CBC_BASE:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a"
+cipher_test_encrypt:PSA_ALG_CBC_BASE:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a":"a076ec9dfbe47d52afc357336f20743b"
+
+PSA Symmetric encryption: AES-128
+depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
+cipher_test_decrypt:PSA_ALG_CBC_BASE:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"396ee84fb75fdbb5c2b13c7fe5a654aa":"49e4e66c89a86b67758df89db9ad6955"
 
 PSA Symmetric encryption/decryption: AES-128
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index e3294a7..eb217f9 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -538,11 +538,10 @@
     unsigned char *key = NULL;
     size_t key_size;
     unsigned char iv[16] = {0};
-    size_t iv_size = 16;
-    size_t iv_length = 0;
     unsigned char *input = NULL;
     size_t input_size = 0;
-    unsigned char *output ;
+    unsigned char *output;
+    unsigned char *expected_output;
     size_t output_size = 0;
     size_t output_length = 0;
     psa_cipher_operation_t operation;
@@ -553,6 +552,11 @@
 
     input = unhexify_alloc( input_hex, &input_size );
     TEST_ASSERT( input != NULL );
+
+    expected_output = unhexify_alloc( output_hex, &output_size );
+    TEST_ASSERT( expected_output != NULL );
+
+    memset( iv, 0x2a, sizeof( iv ) );
  
     TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
 
@@ -561,10 +565,9 @@
 
     TEST_ASSERT( psa_encrypt_setup( &operation, key_slot, alg ) == PSA_SUCCESS );
 
-    TEST_ASSERT( psa_encrypt_generate_iv( &operation, iv,
-                                        iv_size, &iv_length) == PSA_SUCCESS );
+    TEST_ASSERT( psa_encrypt_set_iv( &operation, iv,
+                                        sizeof( iv ) ) == PSA_SUCCESS );
 
-	output_size = input_size;
 	output = mbedtls_calloc(0, output_size);
 
     TEST_ASSERT( psa_cipher_update( &operation, input, input_size,
@@ -575,6 +578,9 @@
 
     TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
 
+    TEST_ASSERT( input_size == output_size );
+    TEST_ASSERT( memcmp( expected_output, output, output_size ) == 0 );
+
 exit:
     mbedtls_free( key );
     mbedtls_free( input );
@@ -583,6 +589,70 @@
 }
 /* END_CASE */
 
+
+/* BEGIN_CASE */
+void cipher_test_decrypt( int alg_arg, int key_type_arg, 
+                           char *key_hex,
+                           char *input_hex, char *output_hex )
+{
+    int key_slot = 1;
+    psa_key_type_t key_type = key_type_arg;
+    psa_algorithm_t alg = alg_arg;
+    unsigned char *key = NULL;
+    size_t key_size;
+    unsigned char iv[16] = {0};
+    unsigned char *input = NULL;
+    size_t input_size = 0;
+    unsigned char *output;
+    unsigned char *expected_output;
+    size_t output_size = 0;
+    size_t output_length = 0;
+    psa_cipher_operation_t operation;
+
+
+    key = unhexify_alloc( key_hex, &key_size );
+    TEST_ASSERT( key != NULL );
+
+    input = unhexify_alloc( input_hex, &input_size );
+    TEST_ASSERT( input != NULL );
+
+    expected_output = unhexify_alloc( output_hex, &output_size );
+    TEST_ASSERT( expected_output != NULL );
+
+    memset( iv, 0x2a, sizeof( iv ) );
+ 
+    TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_import_key( key_slot, key_type,
+                                 key, key_size ) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_decrypt_setup( &operation, key_slot, alg ) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_encrypt_set_iv( &operation, iv,
+                                        sizeof( iv ) ) == PSA_SUCCESS );
+
+	output = mbedtls_calloc(0, output_size);
+
+    TEST_ASSERT( psa_cipher_update( &operation, input, input_size,
+                                    output, output_size, 
+                                    &output_length) == PSA_SUCCESS );
+	TEST_ASSERT( psa_cipher_finish( &operation, output + output_length,
+                                    &output_length) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
+
+    TEST_ASSERT( input_size == output_size );
+    TEST_ASSERT( memcmp( expected_output, output, output_size ) == 0 );
+
+exit:
+    mbedtls_free( key );
+    mbedtls_free( input );
+    psa_destroy_key( key_slot );
+    mbedtls_psa_crypto_free( );
+}
+/* END_CASE */
+
+
 /* BEGIN_CASE */
 void cipher_test_verify_output( int alg_arg, int key_type_arg, 
                            char *key_hex,