esphome

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Jesse Hills bfb8569636 [esp32] Trim mbedTLS to client-only defaults and stub vasprintf on the C6

Linking an HTTPS client (http_request, mqtt) pulls in TLS features no
ESPHome client ever negotiates: the server-side handshake, static RSA and
static ECDH key exchange, renegotiation, session tickets, AES-CCM suites,
the EC private-key parsing extras and deterministic ECDSA. Two new esp32
advanced options, on by default, turn them off and save around 14 KB per
build; OpenThread opts back in through require hooks because its DTLS
commissioner is a server and it uses CCM and deterministic ECDSA directly.

On the ESP32-C6 the ROM exports a full-format vsnprintf but no vasprintf,
so esp_http_client's vasprintf call was the only thing dragging newlib's
printf engine (~20 KB) into the image. A linker-wrapped vasprintf built on
the ROM vsnprintf keeps it out.

2026-09-11 16:56:08 +12:00

common.yaml

[core] Add helper functions for clamp_at_... (#10387 )

2025-11-06 15:48:02 +13:00

dummy_signing_key_v1_ecdsa.pem

[esp32] Add Secure Boot V1 ECDSA signing scheme for pre-rev-3.0 ESP32 (#15882 )

2026-04-22 11:25:05 +12:00

dummy_signing_key.pem

[esp32] Add signed app verification without hardware secure boot (#15357 )

2026-04-05 21:20:48 -05:00

test-nvs_encryption.esp32-s3-idf.yaml

[esp32] Add NVS encryption (HMAC scheme) (#17004 )