ecc_digits_from_bytes(9)

💅 ecc_digits_from_bytes — bestie's guide to the kernel API manual (section 9, mwah)

okay so this is ecc_digits_from_bytes(9) from the Kernel API Manual, and honestly? she's a tiny little function with main character energy 🎀

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✨ NAME ✨

ecc_digits_from_bytes — literally creates an ndigits-sized digits array from a byte array. that's it. that's the whole vibe 💖

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✨ SYNOPSIS ✨

void ecc_digits_from_bytes (const u8 *in , unsigned int nbytes , u64
*out , unsigned int ndigits );

no cap, that's the whole signature. take a screenshot bestie 📸

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✨ ARGUMENTS ✨

• in — the input byte array 🌸 your raw materials, your starting point, your source material
• nbytes — the size of that input byte array, like how many bytes we're working with, iykyk
• out — the output digits array 🫶 where the glow-up happens
• ndigits — how many digits to create from the byte array. yes, you're telling it how many to make ✨

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✨ DESCRIPTION ✨

okay so listen 👑 — the first byte in the input byte array is expected to hold the most significant bits of the large integer. big-endian behaviour, front of the line gets the high bits, the way that a queue works but for bits 🦋

that's the whole description fr fr. she's small but she's important 💅

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✨ SEE ALSO ✨

bestie there's a whole friend group, go say hi 🫶

• Kernel file ./include/crypto/internal/ecc.h
• ecc_swap_digits(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)

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💀 reminder: that first byte = most significant bits thing is an expectation, not a suggestion. don't come crying to me when your endianness is ate.

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and that's the whole page, bestie 🌈 she lives in ./include/crypto/internal and she's dated October 2026 — mark your calendars, she's an icon, periodt 💜🎀🦋