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Merge branch 'maint-0.3.2'
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commit
2b6f246652
3
changes/hsdescv3_fuzz_more
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3
changes/hsdescv3_fuzz_more
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@ -0,0 +1,3 @@
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o Minor features (testing):
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- Our fuzzing tests now test the encrypted portions of the
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v3 hidden service descriptors. Implements more of 21509.
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@ -1303,12 +1303,12 @@ encrypted_data_length_is_valid(size_t len)
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* generate the right decryption keys; set <b>decrypted_out</b> to the
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* plaintext. If <b>is_superencrypted_layer</b> is set, this is the outter
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* encrypted layer of the descriptor. */
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static size_t
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decrypt_desc_layer(const hs_descriptor_t *desc,
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const uint8_t *encrypted_blob,
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size_t encrypted_blob_size,
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int is_superencrypted_layer,
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char **decrypted_out)
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MOCK_IMPL(STATIC size_t,
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decrypt_desc_layer,(const hs_descriptor_t *desc,
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const uint8_t *encrypted_blob,
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size_t encrypted_blob_size,
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int is_superencrypted_layer,
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char **decrypted_out))
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{
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uint8_t *decrypted = NULL;
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uint8_t secret_key[HS_DESC_ENCRYPTED_KEY_LEN], secret_iv[CIPHER_IV_LEN];
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@ -261,6 +261,13 @@ STATIC size_t decode_superencrypted(const char *message, size_t message_len,
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uint8_t **encrypted_out);
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STATIC void desc_plaintext_data_free_contents(hs_desc_plaintext_data_t *desc);
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MOCK_DECL(STATIC size_t, decrypt_desc_layer,(const hs_descriptor_t *desc,
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const uint8_t *encrypted_blob,
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size_t encrypted_blob_size,
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int is_superencrypted_layer,
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char **decrypted_out));
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#endif /* defined(HS_DESCRIPTOR_PRIVATE) */
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#endif /* !defined(TOR_HS_DESCRIPTOR_H) */
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@ -35,12 +35,31 @@ mock_rsa_ed25519_crosscert_check(const uint8_t *crosscert,
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return 0;
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}
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static size_t
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mock_decrypt_desc_layer(const hs_descriptor_t *desc,
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const uint8_t *encrypted_blob,
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size_t encrypted_blob_size,
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int is_superencrypted_layer,
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char **decrypted_out)
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{
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(void)is_superencrypted_layer;
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(void)desc;
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const size_t overhead = HS_DESC_ENCRYPTED_SALT_LEN + DIGEST256_LEN;
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if (encrypted_blob_size < overhead)
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return 0;
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*decrypted_out = tor_memdup_nulterm(
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encrypted_blob + HS_DESC_ENCRYPTED_SALT_LEN,
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encrypted_blob_size - overhead);
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return strlen(*decrypted_out);
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}
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int
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fuzz_init(void)
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{
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disable_signature_checking();
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MOCK(dump_desc, mock_dump_desc__nodump);
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MOCK(rsa_ed25519_crosscert_check, mock_rsa_ed25519_crosscert_check);
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MOCK(decrypt_desc_layer, mock_decrypt_desc_layer);
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ed25519_init();
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return 0;
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}
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