ecc_swap_digits(9)

💅 ecc_swap_digits(9) — the Kernel API Manual, bestie edition 🎀

okay so real talk, this is a page from the Kernel API Manual and the star of the show is ecc_swap_digits. it's giving "quiet little helper that eats every single time" energy. no cap. ✨

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✨ NAME ✨

ecc_swap_digits — copies ndigits from a big endian array into a native array 💖

like, that's it. that's the whole job. and it does it flawlessly. periodt.

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🌸 SYNOPSIS 🌸

void ecc_swap_digits (const void *in , u64 *out , unsigned int ndigits );

look at her. short, iconic, does exactly what she says on the tin. the way that signature is literally right there. 👑

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🦋 ARGUMENTS 🦋

• in — the input array 🌈 (where the digits are coming from, bestie)
• out — the output array 💜 (where they're going — it's a u64 *, so you know it's native-array coded)
• ndigits — number of digits to copy 🔥 that's it, that's the count, don't come for her

fr fr: three args, zero surprises. the in is const void * so she will not be touching your input, she's respectful like that. 🫶

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👑 SEE ALSO 👑

if you're obsessed with this one (and you should be), the kernel file ./include/crypto/internal/ecc.h is the whole friend group, and here's everyone in it:

• ecc_digits_from_bytes(9)
• ecc_is_key_valid(9)
• ecc_gen_privkey(9)
• ecc_make_pub_key(9)
• crypto_ecdh_shared_secret(9)
• ecc_is_pubkey_valid_partial(9)
• ecc_is_pubkey_valid_full(9)
• vli_is_zero(9)
• vli_cmp(9)
• vli_sub(9)
• vli_from_be64(9)
• vli_from_le64(9)
• vli_mod_inv(9)
• vli_mod_mult_slow(9)
• vli_num_bits(9)
• ecc_alloc_point(9)
• ecc_free_point(9)
• ecc_point_is_zero(9)
• ecc_point_mult_shamir(9)

like, the whole squad. iykyk. 💀💖

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mwah, that's a wrap 🧚 — this little page lives in ./include/crypto/internal, it's dated October 2026, and it's forever known as ecc_swap_digits(9). slay, go copy some digits bestie. 💅⭐🍓