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Making key decryption nicer #2344

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Merged
merged 2 commits into from
Jul 23, 2025
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de-nordic
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@de-nordic de-nordic requested a review from davidvincze as a code owner June 17, 2025 19:56
@de-nordic de-nordic force-pushed the why-do-i-even-care branch 2 times, most recently from 49ac2fd to 46b5b6a Compare June 18, 2025 08:20
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1st and 3rd commits LGTM

#endif
#if !defined(MCUBOOT_ENCRYPT_KW)
uint8_t *cp;
uint8_t *cpend;
size_t len;
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code which is using depends on #if defined(MCUBOOT_ENCRYPT_RSA)

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Thanks. I have converted it to draft, because this is unfinished. I have accidentally pushed it as non-draft.

@de-nordic de-nordic marked this pull request as draft June 25, 2025 13:44
@de-nordic de-nordic force-pushed the why-do-i-even-care branch from 46b5b6a to 096f97d Compare July 17, 2025 16:19
@de-nordic de-nordic marked this pull request as ready for review July 17, 2025 16:19
@de-nordic de-nordic added the crypto Encryption support label Jul 17, 2025
@de-nordic de-nordic requested review from nvlsianpu and nordicjm July 22, 2025 08:08
@@ -35,6 +35,7 @@ extern "C" {

#if defined(MCUBOOT_USE_TINYCRYPT)
typedef uintptr_t bootutil_ecdh_p256_context;
typedef bootutil_ecdh_p256_context bootutil_key_xchange_ctx;
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*exchange, also below

uint8_t private_key[EC_PRIVK_LEN];
uint8_t counter[BOOT_ENC_BLOCK_SIZE];
#endif
#if !defined(MCUBOOT_ENCRYPT_KW)
bootutil_key_xchange_ctx pk_ctx;
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alignment here is off

@de-nordic de-nordic force-pushed the why-do-i-even-care branch from 096f97d to 4a842c4 Compare July 22, 2025 11:31
@de-nordic de-nordic requested a review from nordicjm July 22, 2025 11:32
uint8_t private_key[EC_PRIVK_LEN];
uint8_t counter[BOOT_ENC_BLOCK_SIZE];
#endif
#if !defined(MCUBOOT_ENCRYPT_KW)
bootutil_key_exchange_ctx pk_ctx;
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this line still weird spacing: bootutil_key_exchange_ctx pk_ctx; 3 spaces

The commit uses typedef to define common name for key exchange
in order to reduce number of local definitions and #ifdef in code.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Allows to reuse size_t variables.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
@de-nordic de-nordic force-pushed the why-do-i-even-care branch from 4a842c4 to dea8c4c Compare July 22, 2025 14:30
@de-nordic de-nordic requested a review from nordicjm July 22, 2025 15:15
@nvlsianpu nvlsianpu merged commit 7a9f30f into mcu-tools:main Jul 23, 2025
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3 participants