Added support for AES-ECB to the PSA Crypto implementation

PSA_ALG_ECB_NO_PADDING came in to the PSA Crypto API spec v1.0.0, but
was not implemented yet in the mbed TLS implementation.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 2a0573d..61338e9 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -346,7 +346,11 @@
 depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_RSA_C
 import_rsa_made_up:PSA_VENDOR_RSA_MAX_KEY_BITS+8:0:PSA_ERROR_NOT_SUPPORTED
 
-PSA key policy: AES
+PSA key policy: AES ECB
+depends_on:MBEDTLS_AES_C
+check_key_policy:PSA_KEY_TYPE_AES:128:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_ECB_NO_PADDING
+
+PSA key policy: AES CBC
 depends_on:MBEDTLS_AES_C
 check_key_policy:PSA_KEY_TYPE_AES:128:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CBC_NO_PADDING
 
@@ -1122,6 +1126,10 @@
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_bad_order:
 
+PSA symmetric encrypt: AES-ECB, 16 bytes, good
+depends_on:MBEDTLS_AES_C
+cipher_encrypt:PSA_ALG_ECB_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"":"6bc1bee22e409f96e93d7e117393172a":"3ad77bb40d7a3660a89ecaf32466ef97":PSA_SUCCESS
+
 PSA symmetric encrypt: AES-CBC-nopad, 16 bytes, good
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_encrypt:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"6bc1bee22e409f96e93d7e117393172a":"a076ec9dfbe47d52afc357336f20743b":PSA_SUCCESS
@@ -1158,6 +1166,10 @@
 depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_encrypt:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_DES:"01020407080b0d0ec1c2c4c7c8cbcdce31323437383b3d3e":"2a2a2a2a2a2a2a2a":"eda4011239bc3ac9":"817ca7d69b80d86a":PSA_SUCCESS
 
+PSA symmetric decrypt: AES-ECB, 16 bytes, good
+depends_on:MBEDTLS_AES_C
+cipher_decrypt:PSA_ALG_ECB_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"":"396ee84fb75fdbb5c2b13c7fe5a654aa":"63cecc46a382414d5fa7d2b79387437f":PSA_SUCCESS
+
 PSA symmetric decrypt: AES-CBC-nopad, 16 bytes, good
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_decrypt:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"396ee84fb75fdbb5c2b13c7fe5a654aa":"49e4e66c89a86b67758df89db9ad6955":PSA_SUCCESS
@@ -1194,6 +1206,10 @@
 depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_decrypt:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_DES:"01020407080b0d0ec1c2c4c7c8cbcdce31323437383b3d3e":"2a2a2a2a2a2a2a2a":"817ca7d69b80d86a":"eda4011239bc3ac9":PSA_SUCCESS
 
+PSA symmetric encrypt/decrypt: AES-ECB, 16 bytes, good
+depends_on:MBEDTLS_AES_C
+cipher_verify_output:PSA_ALG_ECB_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a"
+
 PSA symmetric encrypt/decrypt: AES-CBC-nopad, 16 bytes, good
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_verify_output:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a"
@@ -1210,6 +1226,10 @@
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CTR
 cipher_verify_output:PSA_ALG_CTR:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a"
 
+PSA symmetric encryption multipart: AES-ECB, 16+16 bytes
+depends_on:MBEDTLS_AES_C
+cipher_encrypt_multipart:PSA_ALG_ECB_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"":"6bc1bee22e409f96e93d7e117393172a5434f378a597bcef1389318c7fc865ef":16:16:16:"3ad77bb40d7a3660a89ecaf32466ef9755ed5e9e066820fa52c729886d18854c"
+
 PSA symmetric encryption multipart: AES-CBC-nopad, 7+9 bytes
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_encrypt_multipart:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"6bc1bee22e409f96e93d7e117393172a":7:0:16:"a076ec9dfbe47d52afc357336f20743b"
@@ -1274,6 +1294,10 @@
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CTR
 cipher_encrypt_multipart:PSA_ALG_CTR:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"6bc1bee22e409f96e93d7e117393172a":16:16:0:"8f9408fe80a81d3e813da3c7b0b2bd32"
 
+PSA symmetric decryption multipart: AES-ECB, 16+16 bytes
+depends_on:MBEDTLS_AES_C
+cipher_decrypt_multipart:PSA_ALG_ECB_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"":"3ad77bb40d7a3660a89ecaf32466ef9755ed5e9e066820fa52c729886d18854c":16:16:16:"6bc1bee22e409f96e93d7e117393172a5434f378a597bcef1389318c7fc865ef"
+
 PSA symmetric decryption multipart: AES-CBC-nopad, 7+9 bytes
 depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_decrypt_multipart:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"a076ec9dfbe47d52afc357336f20743b":7:0:16:"6bc1bee22e409f96e93d7e117393172a"
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index ae4045c..e392ecc 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -3347,7 +3347,11 @@
     PSA_ASSERT( psa_cipher_encrypt_setup( &operation,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    if( iv->len > 0 )
+    {
+      PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    }
+
     output_buffer_size = ( (size_t) input->len +
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output, output_buffer_size );
@@ -3410,7 +3414,11 @@
     PSA_ASSERT( psa_cipher_encrypt_setup( &operation,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    if( iv->len > 0 )
+    {
+      PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    }
+
     output_buffer_size = ( (size_t) input->len +
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output, output_buffer_size );
@@ -3479,7 +3487,9 @@
     PSA_ASSERT( psa_cipher_decrypt_setup( &operation,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    if( iv->len > 0 ) {
+      PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    }
 
     output_buffer_size = ( (size_t) input->len +
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
@@ -3546,7 +3556,9 @@
     PSA_ASSERT( psa_cipher_decrypt_setup( &operation,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    if( iv->len > 0 ) {
+      PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
+    }
 
     output_buffer_size = ( (size_t) input->len +
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
@@ -3613,9 +3625,11 @@
     PSA_ASSERT( psa_cipher_decrypt_setup( &operation2,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_generate_iv( &operation1,
-                                        iv, iv_size,
-                                        &iv_length ) );
+    if( alg != PSA_ALG_ECB_NO_PADDING ) {
+      PSA_ASSERT( psa_cipher_generate_iv( &operation1,
+                                          iv, iv_size,
+                                          &iv_length ) );
+    }
     output1_size = ( (size_t) input->len +
                      PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output1, output1_size );
@@ -3635,8 +3649,11 @@
     output2_size = output1_length;
     ASSERT_ALLOC( output2, output2_size );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation2,
-                                   iv, iv_length ) );
+    if( iv_length > 0 ) {
+      PSA_ASSERT( psa_cipher_set_iv( &operation2,
+                                     iv, iv_length ) );
+    }
+
     PSA_ASSERT( psa_cipher_update( &operation2, output1, output1_length,
                                    output2, output2_size,
                                    &output2_length ) );
@@ -3698,9 +3715,12 @@
     PSA_ASSERT( psa_cipher_decrypt_setup( &operation2,
                                           handle, alg ) );
 
-    PSA_ASSERT( psa_cipher_generate_iv( &operation1,
-                                        iv, iv_size,
-                                        &iv_length ) );
+    if( alg != PSA_ALG_ECB_NO_PADDING ) {
+      PSA_ASSERT( psa_cipher_generate_iv( &operation1,
+                                          iv, iv_size,
+                                          &iv_length ) );
+    }
+
     output1_buffer_size = ( (size_t) input->len +
                             PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output1, output1_buffer_size );
@@ -3730,8 +3750,10 @@
     output2_buffer_size = output1_length;
     ASSERT_ALLOC( output2, output2_buffer_size );
 
-    PSA_ASSERT( psa_cipher_set_iv( &operation2,
-                                   iv, iv_length ) );
+    if( iv_length > 0 ) {
+      PSA_ASSERT( psa_cipher_set_iv( &operation2,
+                                     iv, iv_length ) );
+    }
 
     PSA_ASSERT( psa_cipher_update( &operation2, output1, first_part_size,
                                    output2, output2_buffer_size,
diff --git a/tests/suites/test_suite_psa_crypto_metadata.data b/tests/suites/test_suite_psa_crypto_metadata.data
index f888983..e36ddb9 100644
--- a/tests/suites/test_suite_psa_crypto_metadata.data
+++ b/tests/suites/test_suite_psa_crypto_metadata.data
@@ -122,6 +122,10 @@
 depends_on:MBEDTLS_CIPHER_C:MBEDTLS_CIPHER_MODE_OFB
 cipher_algorithm:PSA_ALG_OFB:ALG_IS_STREAM_CIPHER
 
+Cipher: ECB-nopad
+depends_on:MBEDTLS_CIPHER_C
+cipher_algorithm:PSA_ALG_ECB_NO_PADDING:0
+
 Cipher: CBC-nopad
 depends_on:MBEDTLS_CIPHER_C:MBEDTLS_CIPHER_MODE_CBC
 cipher_algorithm:PSA_ALG_CBC_NO_PADDING:0